imagine that the universe is a cubical box. if the universe initially contains equal amounts of all four elements, at all points, and the elements are then allowed to perform natural motions according to principles you discovered in (1) above, what will the final structure of the universe be?

Answers

Answer 1

If the universe initially contains equal amounts of all four elements, and the elements are then allowed to perform natural motions according to the principles discovered above, the final structure of the universe will be determined by the relative strengths of the forces acting on each element.

The stronger forces will cause the elements to move in certain directions and create patterns in the universe. For example, the forces of gravity, electrostatic forces, and magnetic forces will cause the Earth and Water elements to form planets, while the Air and Fire elements will form galaxies and stars. The final structure of the universe will depend on the balance of these forces and the motion of the elements.

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Related Questions

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

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

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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."

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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.

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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

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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.

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Which of these statements best describes what a scientist is?

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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

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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.

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A 2130 kg car, moving at 21.5 m/s, runs into a car that has a mass of 2240 kg
and is moving at 11.4 m/s in the same direction. The cars stick together after
the collision. Assuming momentum is conserved, what is their final velocity?
OA. 14.1 m/s
OB. 12.5 m/s
O C. 16.3 m/s
O D. 19.4 m/s

Answers

Answer:

  C.  16.3 m/s

Explanation:

You want to know the final velocity of the combined mass of a 2130 kg car at 21.5 m/s after collision with a 2240 kg car at 11.4 m/s in the same direction. Momentum is conserved.

Momentum

The momentum of each object is the product of its mass and velocity. When momentum is conserved, the momentum of the mass after the collision is the same as that before the collision.

  m1·v1 +m2·v2 = (m1 +m2)·v3

Then the velocity after the collision is ...

  v3 = (m1·v1 +m2·v2)/(m1 +m2)

You may recognize this as the weighted average of the initial velocities, where the weights are the respective masses of the objects.

  v3 = (2130·21.5 +2240·11.4)/(2130 +2240) ≈ 16.3

The final velocity is 16.3 m/s, matching choice C.

or an observer at a middle latitude (i.e. neither at the equator nor the poles), how much time is there between when a star rises and when it sets? group of answer choices

Answers

For a observer at a middle latitude, the time between when a star rises and when it sets depends on the star.

If you watch the night sky for a few hours, you will see that the stars appear to rotate about a fixed point in the sky (which happens to be near the pole star, Polaris). This motion is due to the Earth's rotation. As the spin of the Earth carries us eastward at almost one thousand miles per hour, we see stars rising in the East, passing overhead, and setting in the West.

Because of the Earth's rotation, everything in the sky seems to move together, turning once around us every 24 hours. Ancient astronomers explained this phenomenon by supposing that the Sun, Moon, planets, and stars were attached to a huge celestial sphere, centered on the Earth, which rotated on a fixed axis once per day.

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--The complete question is, An observer at a middle latitude (i.e. neither at the equator nor the poles), how much time is there between when a star rises and when it sets?

a. <12 hours

b. about 12 hours

c. > 12 hours

d. depends on the stars--

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.

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

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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.

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

Answers

Answer: energy

Explanation: ghope thi hrkps

The bending of light as it passes through one optical medium to another optical medium is called refraction​

Answers

Answer:

do u want the definition of refraction?

Explanation:

Refraction is defined as the phenomenon of bending of light ray when it travels from one medium to another of refractive index.

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.

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The human jaw muscle is the strongest in the body for its size. Does this mean that the jaw muscle is the also the overall strongest muscle as well? Explain why or why not. (Our unit is on work and power)

Answers

The sartorius muscle is the solution. A superficial muscle that runs the full length of the leg, the sartorius is involved in the flexion of the knee and hip.

What is Sartorius muscle?

The heart's wall is made up of cardiac muscle, which also causes the heart to contract vigorously. Intestinal, uterine, blood vessel, and internal ocular muscles are all made of smooth muscles.

The epidermis and some skeletal muscles are linked to the bones (muscles in our face). The skeletal muscles' contraction aids in the movement of the limbs and other bodily parts.

Although some estimates go as high as 840, the majority of sources claim that there are over 650 identified skeletal muscles in the human body.

Therefore, The sartorius muscle is the solution. A superficial muscle that runs the full length of the leg, the sartorius is involved in the flexion of the knee and hip.

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the traces on the image show beats that occur when two different pairs of waves interfere. for which case is the difference in frequency of the original waves greater?

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The difference in frequency between two interfering waves determines the frequency of the beat that is observed. Specifically, the beat frequency is equal to the absolute value of the difference in frequency between the two waves. However, we can say that the case with the greater difference in frequency between the original waves will produce more pronounced beats on the trace.

Let's call these differences Δf1 and Δf2:

Δf1 = |f1 - f2|

Δf2 = |f1 - f3|

The pair of waves with the greater difference in frequency will have a larger beat frequency and produce more distinct beats. The one with the larger absolute value will have a greater difference in frequency.

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

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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.

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an astronomical unit (au) is approximately 150 million km. in kilometers, how far did new horizons travel to get to arrokoth? (5 pts)

Answers

The distance covered by new horizons to reach arrokoth was 12,500 km (7,800 mi).

In the Solar System, Arrokoth is the most distant and primitive object that a spacecraft has ever visited. On January 1, 2019, the NASA spacecraft New Horizons made a flyby of the object. The New Horizons crew searched for its Kuiper Belt flyby target after Pluto using the potent Hubble Space Telescope. The research team, lead by co-investigator Marc Buie, found an object that New Horizons may reach with its remaining fuel using data acquired with Hubble on June 26, 2014. In 2019, the object was given the nickname "Arrokoth" (a Native American phrase that meaning "sky" in the Powhatan/Algonquin language), minor planet number 485968, and the designation 2014 MU69.

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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].

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.

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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.

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ASAP A 1 kg ball is held motionless above the ground and then released. At impact, it was traveling at 5.50 m/s. How much potential energy did it
have before it was released?
O a
Ob
Oc
Od
5J
9.21
12.7J
15.1 J

Answers

If 1 kg ball is held motionless above the ground and then released. At impact, it was traveling at 5.50 m/s. The amount of the potential energy  it have before it was released is: D. 15.1 J.

How to find the potential energy ?

Potential energy is related to the height of an object and can be calculated using the equation:

PE = mgh

where :

m = mass of the object

g =  acceleration due to gravity (9.8 m/s^2)

h = height above the ground

Since the initial velocity of the ball is zero, the potential energy can be calculated as follows:

PE = 0.5 * m * v^2

where:
m = mass of the ball (1 kg)

v =  velocity at impact (5.50 m/s)

PE = 0.5 * 1 kg * (5.50 m/s)^2 = 15.1J

Therefore the ball had 15.1 J of potential energy before it was released.

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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.

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what does rotation and revolution share??

Answers

Answer:

srry

Explanation:

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.

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.

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(A)derive the equation for circular motion,a=rw^2, where a is the centripetal acceleration w is the angular velocity and r the radius of the circle

(B) (i) the moon orbits the earth in a circle of radius 400000km. considering only these two objects, state what force act on the moon and explain how newton third law of motion applies to the system.

(ii) find the time for one complete revolution of the moon about the earth.

Answers

The equation for centripetal acceleration can be written as follows : a = v² / r = (rw)² / r = r × w² , the relationship between angular velocity and linear velocity : v = r × w

Evaluation :

A.The following equation can be used to calculate the centripetal acceleration during a circular motion:

Consider a particle of mass m traveling at an angular velocity w in a circle of radius r. The particle's velocity is calculated as v = rw, where v is its linear velocity.

The net force exerted on the particle can be calculated using Newton's second law as follows:

                                      F = m × a,

where a is the particle's acceleration.

The centripetal force is the net force exerted on the particle, which must be directed toward the circle's center.

As a result, the equation for centripetal acceleration can be written as follows:

                     a = v² / r = (rw)² / r

                               = r × w²

This equation is usually written as:

                                       a = r × w².

What is the Third Law of Motion of Newton?

According to Newton's third law of motion, there is an equal and opposite reaction to every action. The gravitational force exerted by the moon in this system is the same as that exerted by the Earth in this system. Newton's third law of motion, also known as the action-reaction pair of forces, describes this phenomenon.

B) (i) The equation below describes the gravitational force that is exerted on the moon:

                               F =G × (m_earth × m_moon) / r²

G is the gravitational constant, m_earth is the Earth's mass, m_moon is the moon's mass, and r is the distance between the Earth's and moon's centers.                  

(ii) We need to divide the circumference of the moon's circular path by its linear velocity in order to determine the time it takes for the moon to complete one complete revolution around the Earth:

                          C = 2 × pi × r

                               v = C / T

where C is the circumference of the moon's circular path, r is the circular path radius, T is the time it takes to complete one revolution, and v is the moon's linear velocity.

We obtain: by substituting the values:

                 C = 2 × pi × 400000 km = 800000 × pi km

                            v = C / T = (800000 × pi km) / T

We need to know the moon's angular velocity in order to calculate the time. These numbers indicate the relationship between angular velocity and linear velocity :

                       v = r × w

Substituting the values, we get:

                                T = C / (r × w)

                        = (800000 × pi km) / (400000 km × w)

                               = 2 × pi / w

Since the angular velocity w is not specified, it is not possible to determine how long it would take for the moon to complete one complete revolution around the Earth.

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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

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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.

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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.

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a block with mass is suspended on a string. you pull upwards on the string creating a tension force of magnitude . if the upward speed of the block is right now, then what is its speed later?

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The block receives gravitational potential energy when the string is pulled up on it, and this energy is equal to mgh, where mg is the block's mass, g is the acceleration caused by gravity, and h is the height to which it is elevated.

Depending on the context, a block can be used to refer to various things. A block in computing is a unit of data that is sent or stored as a single entity. A block in programming is a segment of code contained in curly brackets or a keyword like "if" or "while." A block in economics is a collection of nations or organisations that work together to accomplish similar objectives. A rectangular or square building material made of concrete, clay, or other materials can be referred to as a block in construction. The word "block" is used in a variety of contexts and for a variety of purposes.

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