the planet in the orbit shown in the drawing obeys kepler's laws. during which of the portions of the planet's orbit (a, b, c, or d) would the planet experience an increase in speed for at least a moment?

Answers

Answer 1

The planet experience an increase in speed for at least a moment as it approaches the sun.

What are Kepler laws?

The three laws of Kepler are -

The orbit of a planet is an ellipse with the Sun at one of the two foci.A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.The square of a planet's orbital period is proportional to the cube of the length of the semi - major axis of its orbit.

Given is the planet in the orbit shown in the drawing obeys Kepler's laws.

The planet moves faster when it is nearer the Sun and slower when it is farther from the Sun

Therefore, the planet experience an increase in speed for at least a moment as it approaches the sun.

To solve more questions on Kepler's laws, visit the link below -

brainly.com/question/25384702

#SPJ1


Related Questions

when particles are interconnected by a cable, the motions of the particles are group of answer choices always independent always dependent not always dependent. none of the above

Answers

The motions of the atoms are ____ when they are connected by a cable. A) Constant independence B) Constant dependence reliant, but not necessarily

What is the motion process?

The act of moving, changing location, or even merely changing position is referred to as motion. Every time something moves, a lot of elements come into play. If an object travels in a single direction at a constant speed, there are fewer variables at play. The majority of movement, however, involves varying the movement's speed and direction.

What makes motion different from terms?

Motion and Conditions The act of moving, changing location, or even merely changing position is referred to as motion. Every time something moves, a lot of elements come into play. If an object travels in a single direction at a constant speed, there are fewer variables at play.

To know more about motions visit:

https://brainly.com/question/22810476

#SPJ4

g how does the pressure at each of the five points change if the tank and its previous contents were buried an extra 1 meter below the current level such that the pipe to the surface is now 3 meters long?

Answers

The pressure at each of the five points would increase by ρg × 1 Pa.

The pressure at each of the five points would increase if the tank and its previous contents were buried an extra 1 meter below the current level. The pressure at a point in a fluid is proportional to the height of the fluid column above that point. Since the pipe to the surface is now 3 meters long, the height of the fluid column above each of the five points has increased by 1 meter. Hence, the pressure at each of the five points would increase by an amount proportional to the height of the fluid column, or P2 = P1 + ρgh, where P1 is the original pressure, P2 is the new pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the increase in height. As a result, the pressure at each of the five points would increase by ρg × 1 Pa.

Learn more about pressure:

brainly.com/question/12971272

#SPJ4

please helps i need help xC
a bumblebee is flying towards a flower in a straight line at 4.09 m/s when it begins to accelerate at 1.01 m/s^2 how long does it take the bee to reach the flower if its 23.4 meters away

Answers

The time taken for the bumblebee to the reach the flower is 3.87 s.

What is the time of motion of the bumblebee?

The time taken for the bumblebee to the reach the flower that is 23.4 m away is calculated by applying the following equation as shown below.

s = vt + ¹/₂at²

where;

t is the time of motion of the bumblebeev is the initial velocity of the bumblebeea is the acceleration of the bumblebees is the distance travelled by the bumblebee

The time taken for the bumblebee to the reach the flower is calculated as;

23.4 = 4.09t + ¹/₂(1.01)t²

23.4 = 4.09t + 0.505t²

0.505t² + 4.09t - 23.4 = 0

solve for t using formula method,

t = 3.87 seconds

Learn more about time of motion here: https://brainly.com/question/2364404

#SPJ1

The ultrasonic transducer used in a medical ultrasound imaging device is a very thin disk (m = 0.10 g) driven back and forth in SHM at 1.0 MHz
by an electromagnetic coil.

Answers

The mass of the ultrasonic transducer used in a medical ultrasound imaging device is 0.10 g and it is driven back and forth in simple harmonic motion (SHM) at 1.0 MHz. The frequency of 1.0 MHz means that the disk oscillates back and forth 1 million times per second. The disk's oscillations in SHM are crucial to the functioning of the medical ultrasound imaging device.

In a medical ultrasound imaging device, the transducer sends and receives high-frequency sound waves that are used to create images of internal organs, tissues, and blood flow. The motion of the transducer disk creates these sound waves, which then bounce off internal structures and return to the transducer, allowing for the creation of an image. The thin disk design of the transducer allows for a high frequency of oscillation, which results in higher-resolution images.

The ultrasonic transducer plays a critical role in the functioning of a medical ultrasound imaging device and the high frequency of oscillation it generates is key to producing high-quality images. This information is important to understand the functioning of the medical ultrasound imaging device and how the ultrasonic transducer contributes to the quality of the images produced.

Learn more about transducer

brainly.com/question/13103015

#SPJ4

when you drop an object, does its speed (a) suddenly go from zero to some fixed value or (b) start from zero and increase continuously? use your plot of v vs. t to justify your answer.

Answers

(b) start from zero and increase continuously.In free fall motion,speed of the object increases continuously due to gravitational acceleration (g),till the terminal speed.

Can an item be at rest and have zero acceleration?

Newton's First of Motion, often known as the Law of Inertia, states that if an object experiences no net force at all, it will likewise experience no acceleration.Zero acceleration describes an item at rest.An object experiences zero acceleration if it keeps moving in a straight path at a constant speed.

If speed is not zero, can velocity be zero?

The displacement of a moving body with the identical initial and terminal points is zero, but the distance traveled is not.As a result, it possesses a non-zero speed and zero velocity.

To know more about gravitational acceleration visit:

https://brainly.com/question/13769294

#SPJ4

how does a wheel involve physics

Answers

Wheels are simple machines that reduce friction and allow a person to turn force into motion
Wheels are simple machines for reducing the force of friction. Dragging something over rough ground is hard work, but wheels make it much easier by allowing the object to roll along. Wheels can also be used to help turn something with more force, or help something to turn faster.

consider the force pushing the box in example 4. how long would it take for the velocity of the box to double to 2.0m/s

Answers

The time taken by the box to reach the velocity of 2 m / s will be 4 sec.

What is a force?

Force is defined as the external effort or agent applied to the object in a particular direction to displace it from one position to another position. The force is measured in a Newton.

Given that the force applied is 5 N and the velocity is 2 m / s. The mass of the object is 10 kg.

The time required by the object to get the velocity of 2 m/s will be calculated as:-

Force x Time = m x V

Time = ( m x V ) / F

Time  = ( 10 x 2 ) / 5

Time = 4 sec

Hence, the time will be equal to 4 seconds.

To know more about force follow

https://brainly.com/question/27945041

#SPJ1

Describe why a bowling ball and a baseball dropped off of a cliff at the same time would land at different times, but they would land at the same time in a vacuum.

Answers

Because Motion doesn’t have the same effect to both bowling ball and baseball. Bowling ball contains more weight towards the baseball.

a convex lens of focal length 18.0 cm is used as a magnifying glass. at what distance from a tiny insect should you hold this lens to get a magnification of ?3.00?

Answers

12 cm is the  distance from a tiny insect should you hold this lens to get a magnification of 3.00

How far away from an object should you set a convex lens with an 18 cm focal length?

f = 18 cm is a convex lens's focal length.Object separation, u =?The object is therefore 72 centimeters away.The object needs to be located 72 cm away from the lens.

apply 1/f  =  1/u +1/v, magnification m  = -v/u  =  3, so v  =  -3u, so  f  =  uv/u+v, f  =  u* -3u/(-2), u  =  2f/3, u  =2* 18/3, u  =  12 cm.

What image does a magnifying glass create?

The magnifying glass's image will be virtual, upright, and bigger than the thing as a result.Note: Binoculars, telescopes, and microscopes all require magnifying glasses.Because a convex lens is used within a magnifying glass, it is curved inward.

To know more about magnification visit:

brainly.com/question/3851549

#SPJ4

In Platos credo, Socrates, believes that he should follow the laws of the state Athens, because?

Answers

In Plato's philosophy, Socrates believed that he should follow the laws of the state of Athens because he believed in the idea of the "philosopher-king."

Who was Socrates?

Socrates was a classical Greek philosopher, credited as one of the founders of Western philosophy. He is best known for his method of inquiry, called the Socratic method, and for his teaching style, which was dialogic and aimed at getting students to think critically and develop their own ideas.

According to Socrates, the laws of the state were a reflection of the absolute and unchanging moral values that exist in the world. He believed that as a philosopher, it was his duty to live in accordance with these moral values, and thus to follow the laws of the state. In this way, Socrates saw himself as a servant of the divine, and believed that by following the laws, he was serving the greater good and promoting the welfare of the city.

Hence, In Plato's philosophy, Socrates believed that he should follow the laws of the state of Athens because he believed in the idea of the "philosopher-king."

To learn more about Socrates:

brainly.com/question/334635

#SPJ4

what type of pressure is produced from the stones being pushed together?

Answers

Whenever heat and pressure change an original as well as parent rock together into completely different rock, a metamorphosed rock is produced. The parent rock may be a sedimentary or metamorphic rock.

How does pressure feel in real life?

Try pressing a bleeding bandage on some fruit to quickly show the concept of pressure. Fruit won't have their surface cut if the flat portion of the blades is pushed against it. The troops is extensively scattered over the region (low pressure).

Is pressure an energy?

The averaged velocity transfer for every unit area in units of time caused through molecular collisions here between confined gas as well as its boundary is what the kinetic theory with ideal gases defines as air pressure.

To know more about pressure visit:

https://brainly.com/question/13490414

#SPJ4

how do you determine the components of a vector using the magnitude and angle? how does multiplying a vector by a scalar affect its components

Answers

To determine the components of a vector using its magnitude and angle, you can use trigonometry.

The x-part of a vector rises to the vector extent times the cosine of the point, and the y-part of a vector rises to the vector greatness times the sine of the point. So the part can be composed as:

x part = size * cos(angle)

y part = size * sin(angle)

Increasing a vector by a scalar influences greatness yet not course. The size of a vector is duplicated by a scalar, and the parts of a vector are increased by a scalar. So on the off chance that a vector has (x, y) parts, duplicating it by the scalar "k" yields another vector with (kx, ky) parts.

The bearing of the vector doesn't change. While deciding the parts of a

vector, you can utilize the size and point to track down the x and y parts. For this we can utilize geometry. Here, duplicate size by the cosine of a point to get the x part and increase greatness by the sine of a point to track down the y part. Duplicating a vector by a scalar influences the size of the vector, causing it to develop or recoil contingent upon the worth of the scalar, however doesn't adjust the vector's course. Vector parts are increased by scalars also.

To learn more about magnitude and angle, refer:

https://brainly.com/question/18942915

#SPJ4

why is a battery used when we require more electricity

Answers

A battery is used when we require more electricity because it can store and release electrical energy as needed.

Batteries consist of one or more cells, each of which contains two electrodes and an electrolyte that allows for the flow of charged particles between the electrodes. When a battery is connected to a device, the charged particles flow from the positively charged electrode to the negatively charged electrode, providing a flow of electricity.

The amount of electricity stored in a battery is limited, but it can be released as needed, even when the source of the electricity is not available. This makes batteries useful for supplying electrical energy in situations where there is a temporary increase in demand, such as when more devices are turned on or when the source of electrical energy is unavailable, such as during a power outage.

Additionally, batteries are portable and can be easily carried, making them useful for supplying electrical energy in remote locations where there is no access to the electrical grid.

Learn more on Battery:

https://brainly.com/question/5059264


#SPJ4

the cliff divers at acapulco, mexico, jump off a cliff 28.7 m above the ocean. ignoring air resistance, how fast are the divers going when they hit the water?

Answers

The divers going when they hit the water at 23.1m/s speed

How does air resistance function?

Air exerts a force known as air resistance. When an object is travelling through the air, the force works in the opposite direction. While a sports vehicle with a streamlined design will encounter reduced air resistance and experience less drag, the automobile will be able to move more quickly than a truck with a flat front.

The law of conservation of energy allows us to calculate the speed of the divers when they strike the ground because their potential energy at a height of 28.7 meters above the ground is transformed into kinetic energy at ground level.

Potential Energy =Kinetic Energy

PE=KE

mgh = 1/2mv²

gh = 1/2v²

g = 9.81m/s²

v = √2gh

v = √2 × 9.81 ×2 × 28.7

v = 23.1 m/s

To learn more about energy use link below:

https://brainly.com/question/13881533

#SPJ4

What do all types of electromagnetic radiation from one place to another?

Answers

Answer: energy

Explanation: ghope thi hrkps

a wrench cm long lies along the positive -axis and grips a bolt at the origin. a force is applied in the direction at the end of the wrench. find the magnitude of the force needed to supply of torque to the bolt.

Answers

A 30 cm long wrench is positioned at the origin, along the positive y-axis, and is holding a bolt. Just at end of the wrench, a force is exerted in the direction of "0, 3, and 4"

What does force in physics mean?

You can also use words like extend and squeeze to describe force. Force is described in physics as the pull or push that causes a massed object to change its speed. Force is an outside agent that has the power to alter a body's resting or moving position.

What function does force serve?

For instance, if there is no opposition, force is defined as the interaction that modifies an object's motion. When we look attentively at this sentence, we can see how push-pull plays a part in it. A pull is defined as a force that causes an object to move closer to you. On the other side, it is a shove if it travels away.

To know more about force visit:

https://brainly.com/question/3354744

#SPJ4

How many amperes of current will flow through a circuit that has 4.0 ohms of resistance and js powers by a 16 volt battery

Answers

The current flowing in the circuit is 4 A.

What is the current flowing in the circuit?

The current flowing in the circuit is the rate of flow of charges per second.

The magnitude of the current flowing in the circuit can be calculated by applying Ohm's law as shown below.

V = IR

where;

I is the current flowing in the circuitR is the resistance of the circuit

The magnitude of the current is calculated as;

I = V/ R

I = 16 V / 4 ohms

I = 4 A

Learn more about current here: https://brainly.com/question/24858512

#SPJ1

a plank is balanced in its center. a 100 n bucket is placed 0.66 m from the center of the plank. how far from the center on the opposite side must a 50 n weight must be placed to balance the bucket.

Answers

The 50 N weight must be placed 1.32 m from the center on the opposite side to balance the 100 N bucket.

The formula to find the distance, d, from the center that a weight must be placed to balance a weight placed a distance, x, from the center is:

d = x * (m1 / (m1 + m2)),

Where:

m1 and m2 are the masses of the weights

In this case:

m1 = 100 Nm2 = 50 N

Plugging these values into the formula, we find:

d = 0.66 m * (100 N / (100 N + 50 N)) d = 0.66 m * (100 N / 150 N) d = 0.66 m * (2 / 3) d = 1.32 m

Hence, in order to balance the 100 N bucket, the 50 N weight must be positioned 1.32 m from the center on the opposite side.

Learn more about balanced a center brainly.com/question/15244810

#SPJ4

2
A simple circuit contains a battery and a resistor.
Over 3.0 hours, 29 000 C of charge passes through the resistor.
Calculate the current flowing through the circuit during this time.
Give your answer to two significant figures.

Answers

Answer:

Approximately [tex]2.69\; {\rm A}[/tex].

Explanation:

Ensure that all values are measured in standard units. Charge should be measured in coulombs, while time should be measured in seconds:

[tex]\begin{aligned}t &= 3.0\; {\rm hr} \times \frac{3600\; {\rm s}}{1\; {\rm hr}} = 10800\; {\rm s}\end{aligned}[/tex].

Electric current [tex]I[/tex] is the rate of flow of electric charge.

In order to find the electric current, divide electric charge [tex]q[/tex] by the time [tex]t[/tex] required to transfer these charge. If charge [tex]q\![/tex] is measured in coulombs and time [tex]t\![/tex] is measured in seconds, the unit of current [tex]I[/tex]would be amperes:

[tex]\begin{aligned}I & = \frac{q}{t} \\ &= \frac{29000\; {\rm C}}{10800\; {\rm s}} \approx 2.69\; {\rm A}\end{aligned}[/tex].

Which of these statements best describes what a scientist is?

Answers

A scientist is a person who is trained and educated in a scientific discipline, and who carries out research and experimentation in order to increase our understanding of the natural world

Who is a scientist?

Scientists may work in a variety of fields, including physics, chemistry, biology, earth sciences, and many others.

They use the scientific method to design experiments, make observations, and analyze data in order to test hypotheses and advance our knowledge of the world around us. Scientists also communicate their findings to other scientists and the general public through scientific publications and presentations.

Generally, we can conclude that a scientist is a person who is trained and educated in a scientific discipline, and who carries out research and experimentation in order to increase our understanding of the natural world

Learn more about scientist here: https://brainly.com/question/458058

#SPJ1

a drone airplane has an acceleration of 25 m/s2. if it is thrown from rest, how fast (m/s) will it be going in 8 seconds?

Answers

The drone airplane will be going 200 m/s after 8 seconds.

What is the airplane ?

An airplane is a powered, fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller or rocket engine. It is able to take off and land on runways, and can typically carry a large number of passengers and cargo. Airplanes are flown by pilots, and use a variety of instruments and controls to navigate and fly. They provide an efficient and cost-effective way to travel long distances and are used for both commercial and military purposes. Airplanes are an important component of modern transportation, with thousands of flights each day all around the world.

The speed of the drone airplane after 8 seconds can be calculated using the equation v = at, where v is the speed, a is the acceleration, and t is the time. In this case, v = 25 m/s2 x 8 s = 200 m/s.

Therefore, the drone airplane will be going 200 m/s after 8 seconds.

To learn more about airplane

https://brainly.com/question/30306909

#SPJ4

solved the question belowCalculate the force of attraction between a cation with a valence of +3 and an anion with a valence of -2, the centers of which are separated by a distance of 2.8 nm.
F= _____Calculate the force of attraction between a cation( eV , N , J , nm ) Choose One

Answers

the attraction between a +3 valence cation and a -2 valence anion, whose centres are separated by a distance of 2.8 nm. The attraction between two cations is 1.76×10⁻¹⁰ forces.

given,

number of cations,n₁=3

number of anions,n₂=2

center distance between cation and anion,r=2.8 nm=2.8×10⁻⁹m

write the equation force of attraction:

[tex]F=\dfrac{kq_1q_2}{r^2}.[/tex]..............(1)

Here,K is coulombs constant ,K=9×10⁹ Nm²/C²,q =n×e ,e is electronic charge,e=1.60×10⁻¹⁹ coulombs. the attraction between a +3 valence cation.

calculate the value of cation charge q₁

q₁=n₁×e

q₁=3×1.60×10⁻¹⁹

calculate the value of cation charge q₂

q₂=n₂×e

q₂=2×1.60×10⁻¹⁹

substitute the values in equation 1

[tex]F=\frac{(9*10^{9})*(3*1.602*10^{-19}) *(2*1.602*10^{-19} )}{(2.8*10^{-9})^{2} }[/tex]

F=1.76×10⁻¹⁰

The force of attraction between cation is 1.76×10⁻¹⁰.

Learn more about valence here:

https://brainly.com/question/3527118

#SPJ4

for a cooking appliance, the overall energy supplied to the appliance is 5 kwh and only 4 kwh is transferred to the food. what is the appliance's efficiency?

Answers

80%  is the appliance's efficiency

Why do appliances use less energy?

Among the several advantages of energy efficiency are: Environmental: Greater efficiency can reduce water use, greenhouse gas (GHG) emissions, and other pollutants. Economic benefits of energy efficiency improvements include reduced utility costs, job growth, and reduced price fluctuation of power.

Utilizing the formula below, efficiency may be represented as a ratio: Output ÷ Input. The total amount of beneficial work accomplished, excluding waste and spoilage, is known as output or work output. Efficiency can also be expressed as a percentage by dividing the ratio by 100.

Efficiency will be 4/5 *100 i.e. 80%

To learn more about efficiency use link below:

https://brainly.com/question/3617034

#SPJ4

Fighter jets on aircraft carriers are accelerated down a 270 foot "runway" in two seconds when they are taking off. A fully loaded, combat ready F-15 has a maximum take-off weight of 62,000 pounds. To ensure the pilot can reach sufficient velocity within 2 seconds a pneumatic cannon propels the plane down the runway. If this same cannon was used to launch your Toyota Corolla (mass is 2646lbs), how fast in miles per hour would you be going after reaching the end of the runway?

Answers

The speed of the  Toyota Corolla would have  been 143.9 mph.

What is the acceleration of the F-15?

The acceleration of the F-15 can be calculated as follows:

Acceleration = Velocity Change / Time = (Take-off Speed) / Time

where;

Take-off Speed = √(2dg /t²)

Take-off Speed = √(2 x  (270 ft)  x 32.2 ft/s² / (2 s)²)

T  = √(17496) = 131.6 ft/s

Acceleration = Velocity Change / Time

= (131.6 ft/s) / (2 s) = 65.8 ft/s²

We can use the same acceleration to launch the Toyota Corolla, and calculate its final velocity:

Final Velocity = Initial Velocity + Acceleration x Time

where;

Initial Velocity = 0 (because the car is not moving initially), Time = 2 s

Final Velocity = 0 + (65.8 ft/s²) * (2 s) = 131.6 ft/s

Finally, we can convert the velocity from feet per second to miles per hour:

Velocity (mph) = Velocity (ft/s) x (1 hour/3600 s) x (5280 ft/mile)

= 131.6 ft/s x  (1 hour/3600 s)  x (5280 ft/mile)

= 143.9 mph

Learn more about average acceleration here: https://brainly.com/question/26246639

#SPJ1

describe the shape and location of a gaussian surface that can be used to determine the electric field at point p due to the long cylinder

Answers

To determine the electric field at point P due to a long cylinder, a cylindrical Gaussian surface should be used.

The Gaussian surface should be centered on the point P, and should be oriented along the axis of the cylinder. The surface should be perpendicular to the electric field vector, and should enclose the entire cylinder.

A Gaussian surface is a closed surface in three-dimensional space through which the flux of a vector field is calculated.  It is typically used to calculate the electric flux of an electric field or the gravitational flux of a gravitational field.

Learn more about Gaussian surface :

https://brainly.com/question/13413886

#SPJ4

A body moves with uniform velocity, what will be its acceleration.

Answers

Explanation:

zero.

when the speed (velocity) does not change, there is no acceleration (which means the measure about how much the speed or velocity changes).

An object moving at uniform or constant velocity has zero acceleration because there is no change in velocity.

a major flaw in copernicus's model was that it still had

Answers

Answer:

Circular orbits, which were believed to be perfect and uniform, but were later shown to be elliptical by Johannes Kepler. Another flaw was that it relied on the idea of epicycles, which were additional circular orbits used to explain the observed irregularities in the motions of the planets. Despite these flaws, Copernicus's model marked a major step forward in astronomical understanding by proposing a heliocentric model, in which the Earth and other planets revolved around the sun, instead of the Earth being the center of the universe.

Nicolaus Copernicus was a Renaissance-era astronomer and mathematician who is famous for his heliocentric model of the solar system. The Copernican model proposed that the Sun, rather than the Earth, was at the center of the universe, and the planets, including Earth, orbited around it. This model was a significant improvement over the earlier geocentric models that placed Earth at the center of the universe. However, Copernicus's model still had some significant flaws.

One major flaw in Copernicus's model was that it assumed that the planets moved in perfect circles around the Sun. In reality, the orbits of planets are elliptical, meaning they are more like stretched-out circles. Copernicus's model failed to account for this, and as a result, it could not accurately predict the positions of the planets.

Johannes Kepler, a contemporary of Copernicus, recognized this flaw and eventually developed his three laws of planetary motion, which accurately described the elliptical orbits of the planets. Kepler's laws replaced Copernicus's assumption of circular orbits and helped to refine our understanding of the solar system.

Another flaw in Copernicus's model was its inability to explain retrograde motion. Retrograde motion is the apparent backward motion of planets in the sky. Copernicus's model suggested that this motion was caused by the planets moving in circular orbits around the Sun, with Earth sometimes overtaking and passing them. However, this explanation was incomplete and did not account for the complex motions of the planets.

It was not until later when astronomers like Tycho Brahe, Kepler, and Galileo Galilei made more precise observations and developed more accurate models that the flaws in Copernicus's model were fully recognized. Nonetheless, Copernicus's model represented a significant step forward in our understanding of the universe, and it paved the way for the development of more accurate models.

Here you can learn more about Copernican model

https://brainly.com/question/29997301#

#SPJ11

a mover weighing 847 n is pushing a piano weighing 2145 n down a hallway. the force the mover exerts on the piano is 249 n south. state how much force the piano exerts on the mover and in what direction.

Answers

The piano exerts a force of 249 N to the north on the mover.

The force the piano exerts on the mover is equal in magnitude but opposite in direction to the force the mover exerts on the piano. This is because of Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.

The force the piano exerts on the mover is 249 N to the north, since it is opposite in direction to the force the mover exerts on the piano, which is 249 N to the south.

So, the force the piano exerts on the mover is 249 N to the north.

To summarize, the mover weighing 847 N is pushing the piano weighing 2145 N down a hallway, and the force the mover exerts on the piano is 249 N south. According to Newton's Third Law of Motion, the piano must exert an equal and opposite force on the mover. Thus, the piano exerts a force of 249 N to the north on the mover.

Learn more about force:

brainly.com/question/13191643

#SPJ4

When you climb stairs, you expend energy to do work against gravity. The energy you use to climb will convert into an equal amount of gravitational potential energy, so Suppose a 65 kg man uses 10 s to climb a staircase up to a height of 6 m How much power does he use, and how does this power compare to the power used by your highest-consuming device?

Answers

The man uses 558.6 watt power during climb a staircase up to a height of 6 m.

What is potential energy?

Potential energy is a form of stored energy that is dependent on the relationship between different system components.

When a spring is compressed or stretched, its potential energy increases. If a steel ball is raised above the ground as opposed to falling to the ground, it has more potential energy.

The potential energy gained = 65 × 9.8 × 6 Joule = 5586 Joule.

Hence, his power is = (5586 ÷ 10) Watt = 558.6 Watt.

So, the man uses 558.6 watt power during climb a staircase.

Learn more about potential energy here:

https://brainly.com/question/24284560

#SPJ1

two trains are traveling towards each other 120 milesat speeds of 40mph and 50 mph. how long does it take for them to collide?

Answers

The two trains' aggregate mechanical speed is 30 + 40, or 70 miles per hour. Therefore, they must be 70 miles apart when they meet one hour prior (in the final 1 hour they will cover 70 miles to meet).

How do two trains pass one another mathematically?

After meeting, the trains' crossing time is calculated as (L1+ L2)/(S1+ S2). The sum of the train lengths and speeds in this case represents the overall distance to be traveled.

What is the time required for two trains to pass one another?

The faster one must pass the slower one entirely in 60 seconds while they are both traveling in the same direction. They totally pass each other in 10 seconds if they are traveling in the opposite directions.

To know more about mechanical visit:

https://brainly.com/question/20885658

#SPJ4

Other Questions
What is the present value of $11000 paid at the end of each of the next 101 years if the interest rate is 13% per year? Explain three likely reasons why Ghana wants to attract more touristsfrom Europe. (6 marks) Which would be the best choice when purchasing a car?A. one that might require above average maintenanceB. one that is priced to meet your budgetC. one that is sold "as is"D. one that has more options than you will need jesse was ranked 45th in his graduating class of 180 students. at what percentile is jesse's ranking? (round your answer to the nearest whole number.) Question 6 of 10Good mental and emotional health can be maintained by controlling one'sOA. ageOB. anxietyC. blood pressureOD. weightSUBMIT Pregunta 11 ptsPart I. Read each sentence and apply the rules of modal auxiliaries. Hint: Consider the ideas in parenthesis to complete the sentences.There is no electricity in the Writing Room. So, the teachers_____ reschedule their exam. (obligation in the future)Pregunta de la marca: Pregunta 2Pregunta 21 ptsThey _____ need to write a formal request and submit it to the director. (possibility, probability; request)Pregunta de la marca: Pregunta 3Pregunta 31 ptsIn fact, students _____ benefit if all teachers rescheduled exams for next week. (past form, possibility)Pregunta de la marca: Pregunta 4Pregunta 41 ptsIf the director considered the request, students ___ have the test early next week. (possibility in the future)Pregunta de la marca: Pregunta 5Pregunta 51 ptsYou _____ have a visa to enter this country. (necessity, obligation; forcing something to happen; an advice)Pregunta de la marca: Pregunta 6Pregunta 61 ptsWe can cancel our plane reservations and go to Canada by car instead. (possibility; suggestion)Pregunta de la marca: Pregunta 7Pregunta 71 ptsYou _____ leave as soon as you finish the exam. (give permission)Pregunta de la marca: Pregunta 8Pregunta 81 ptsIf we hadnt met that time, I _____ be here now. (conditional verb form; negative)Pregunta de la marca: Pregunta 9Pregunta 91 ptsMy car keys _____ still be in the car. (conditional form of can)Pregunta de la marca: Pregunta 10Pregunta 101 pts"You're a grown-up man, Michael. You _____ take care of yourself. (possibility; general ability) A substance with stronger molecular attraction will evaporate at a higher/lower temperature because it requires more/less energy to be ADDED to overcome attraction between the molecules.A phase change occurs when the kinetic energy increases/decrease enough so that the attraction between molecules pulls them together.A substance with weaker molecular attraction will freeze at a higher/lower temperature because it requires more/less energy to be TAKEN OUT before the attraction pulls the molecules together.Select the correct words in each sentence. :) why can i not type anythingnow I can but pleas read the image and elp The approach to decision making that identifies candidates with the highest scores based on quantitative predictors is the:a. personal judgment approach.b. quantitative approach.c. objective approach.d. statistical approach. AP Human Geography question: What challenges do voters and elected officials face when a district is not compact? Peter, Thomas, and Arvid each have to make a difficult choice that will change their lives.What choice did each make, and what about their personal lives led them to make thatdecision? Change from base 4 to base 10. Show your thinking and solve each problem in 2 ways.13 v4303 v4 132 v4 who is the president's thats create policies did covert action become the central intelligence agency (cia) primary mission and main effort. A maintenance worker needs to wax a restaurant floor shaped like the image shown.If the wax cost $1.38 a square foot, how much will the wax cost to cover the floor?(A six-sided figure. There is a horizontal base of 35 feet then another horizontal base below it of 20 feet. The longest side is to the right and is 40 feet. The top is 30 feet. There is a perpendicular from the vertex of the top to the first base of 35 that is labeled 15 feet.) Assume that bahamas and norway each has 6 days available for production. Originally, each country divided its time equally between the production of coolers and radios. Now, each country spends all its time producing the good in which it has a comparative advantage. As a result, the total output of coolers increased by Explain why enzymes have an optimum pH a charge nurse is evaluating a new nurse's plan of care. which finding will cause the charge nurse to follow up? Read the paragraph from the section "Teens And Pay."Employers often skirt the child labor and wage laws, particularly with seasonal or temporary jobs," says attorney Marni Lennon, who is also assistant dean for public interest and pro bono director, HOPE Public Interest Resource Center at University of Miami School of Law. Long shifts without breaks, stipend payment schemes and consecutive evenings of work while a child is in school are likely in violation of the state's labor laws."What is a way that this paragraph contributes to theauthor's claim? There were ____ judges from the U.S., U.S.S.R., Great Britain and France. Two conditions were placed on the trial. The defendants could not claim: 1. You complain that the system is rigged, the game is fixed, the referees are paid off.You complain that the "little guy" doesn't have a chance and that big money usesits big stick to control everything. There's only one hole in the fabric of yourargument. This city is a democracy. You have a vote. You can change things.