−7 C. Like charges attracts and unlike charges repel. When the three charges are are agitated, the +3 C and +4 C will repel to give of +7 C. The third strike will be -7 C to provide an arithmetic sum of 0 in the system, bringing the system into balance.
What three categories of fees are there?Subatomic particles or matter particles are examples of the different forms of charges:Positive charge characterizes protons.Negative charge characterizes electrons.There is no charge on a neutron.
Are there really only two fees?There are just two different kinds of charge, positive and negative.The force among charges diminishes with the cube of the distance, with like charges repelling and unlike charges attracting.
To know more about repel visit:
https://brainly.com/question/15744700
#SPJ4
How to find the magnitude of the velocity of the canoe relative to the river?
Our simple expression for the canoe's relative velocity to the river is vc/r=( x, y). When compared to the earth, the river is moving at a vr/e= angle (0.54,0). vc/e=(0.55cos(45),0.55sin(45)) is the canoe's angle to the earth.
How does physics define a magnitude?Magnitude is simply "distance or quantity," according to the definition given in physics. It shows how an object moves when it is in motion, whether that movement is absolute, relative, or of a certain size. It serves as a way to describe something's size or scope.
What exactly are magnitude and unit?Scalar values serve as measurement units, and scalar multiplication provides the definition of magnitude. The original quantity is equal to the magnitude of a quantity multiplied by the supplied unit. This is true for all types of tensors, including.
To know more about magnitude visit:
https://brainly.com/question/14452091
#SPJ4
average mass of adult cat is normally distributed with a mean mass of 10 kg and a standard deviation of 1.8 kg. what percentage of cats would have mass more than 12 kg? what percentage of cats would have mass between 7.2 kg and 9.8 kg? round answers to two decimals, if necessary. make sure to include % sign.
a) More than 13% of cats would weigh more than 12 kg.
b) Between 7.2 kg and 9.8 kg of mass would be found in 39.68% of cats.
What is mass and weight?A measuring of an object's gravitational characteristic, or the quantity of matter it includes, is the object's mass. The gravity forces acting on an object or the force required to carry it is measured by the weight of the thing. An object's downward acceleration due to gravity on earth is roughly 9.8 m/s2.
a) P( x > 12 ) = 1 - P( x < 12 )
= 1 - P[(x - \mu) / \sigma < (12 - 10) / 1.8)
= 1 - P(z < 1.11)
= 1 - 0.8665
= 0.1335
Percentage = 13.35%
b) P(7.2 < x < 9.8) = P[(7.2 - 10) / 1.8) < (x - \mu) /\sigma < (9.8 - 10) / 1.8) ]
= P(-1.56 < z < -0.11)
= P(z < -0.11) - P(z < -1.56)
= 0.4562 - 0.0594
= 0.3968
Percentage = 39.68%
To know more about mass visit:
brainly.com/question/28107674
#SPJ4
a box is supported by a 5.2 n vertical force and carried 2.5 m horizontally across a room at constant speed. then, the same box is pushed 2.5 m horizontally across a smooth table (smooth enough to ignore friction) by a 5.2 n horizontal force. in which case was more work done on the box by the 5.2 n force?
In the second scenario, more work done on the box by the 5.2 N force compared to the first scenario where no work was done.
The work done on an object is equal to the force applied to it multiplied by the distance it moves in the direction of the force. In the first scenario, the 5.2 N vertical force applied to the box is perpendicular to the direction of motion, so no work is done by this force.
In the second scenario, the 5.2 N horizontal force is in the same direction as the movement, so work is done by this force. The work done by the force can be calculated as follows:
W = F × d = 5.2 N × 2.5 m = 13 Nm
So, in the second scenario, more work was done on the box by the 5.2 N force compared to the first scenario where no work was done.
Learn more about work done:
brainly.com/question/13662169
#SPJ4
human nerve cells have a net negative charge and the material in the interior of the cell is a good conductor. for related problem-solving tips and strategies, you may want to view a video tutor solution of
The cell boundary's net flux measures -0.887 [tex]Wb.m^{2}[/tex] in both magnitude and direction (inward or outward).
Any impact that seems to flow through or move through a surface or substance is referred to as a magnetic flux. The following formulas are used to determine the size and direction (inward or outward) of the net flux through the cell boundary:
Ф = Q/ε, where:
Q is the net charge
ε is the permittivity of free space.
As per the question,
Φ = (-7.85 x 10⁻¹²)/ (8.85 x 10⁻¹²)
Φ = - 0.887 Wb.m²
The negative sign here indicates the outward flow of the flux. Magnetic flux is a measure of the strength of a magnetic field over a specific area, to put it simply. It has [[tex]ML^{2} T^{-2} A^{-1}[/tex]], as the dimension of mass length squared per square of time and electric current.
To know more about magnetic flux, refer:
https://brainly.com/question/15799032
#SPJ4
Complete question is:
The human nerve cells have a net negative charge and the material in the interior of the cell is a good conductor. if the cell has a net charge of - 7.85 pc, what are the magnitude and direction (inward or outward) of the net flux through the cell boundary.
earth's main energy outputs are question 31 options: ultraviolet radiation and visible radiation. gamma rays, x-rays, and ultraviolet radiation. visible and infrared radiation. reflected light and thermal infrared radiation.
The Earth's main energy outputs are reflected light and thermal infrared radiation. Option D is correct.
The Earth reflects a portion of the incoming solar radiation back into space, mainly in the form of visible light. Additionally, the Earth radiates thermal energy back into space in the form of infrared radiation, which is produced by the warm surface and atmosphere of the planet.
Ultraviolet radiation, gamma rays, and X-rays are not the main energy outputs of the Earth, but they do reach the Earth's surface in small amounts, mainly as a result of the Sun's emission of these types of radiation.
To know more about energy outputs here
https://brainly.com/question/7691216
#SPJ4
--The given question is incorrect, the correct question is
"Earth's main energy outputs are : A) ultraviolet radiation and visible radiation. B) gamma rays, x-rays, and ultraviolet radiation. C) visible and infrared radiation. D) reflected light and thermal infrared radiation."--
The diameter of copper wire is 7.360 mm. Find the resistance of a 5 km length of such wire used for power transmission. (Specific resistance of wire = 1.720 x 10^-8 ohm meter)
Answer:
2.05 Ω
Explanation:
We are here given that the
diameter= 7.360 mm = 0.7360 cm length of wire= 5km = 5000m specific resistance= 1.720 * 10-⁸ Ω mWe need to find out the resistance of the given wire . As we know that,
[tex]\implies R = \rho \dfrac{l}{A} \\[/tex]
[tex]\implies R =\rho \dfrac{ l}{\pi r^2} \\[/tex]
[tex]\implies R =\rho \dfrac{l}{\pi \dfrac{d^2}{4}} \\[/tex]
[tex]\implies R =\rho \dfrac{4l}{\pi d^2}\\[/tex]
substitute the respective values,
[tex]\implies R = 1.720 \times 10^{-8}\times \dfrac{4\times 5000m}{3.14\times (0.74\times 10^{-2}} \\[/tex]
[tex]\implies\underline{\underline{ R = 2.05 \Omega }} \\[/tex]
and we are done!
if you whirl a yo-yo about your head in a horizontal circle, in what direction must a force act on the yo-yo? what exerts the force?
On the off chance that you spin the yo-yo head in an even circle, you should apply force toward the circle's middle. This force is known as the centripetal force.
The centripetal force continually pulls the yo-yo towards the center of the circle, keeping it moving in a round movement.
The power that conveys the centripetal force to the yo-yo is the pressure in the string.
The string, which pulls the yo toward the circle's middle, gives the centripetal force important to keep up with movement. The string is focused on because of the heaviness of the yo-yo and the speed at which it turns.
Learn more about the centripetal force at
https://brainly.com/question/11324711
#SPJ4
a force of 10 lb is required to hold a spring stretched 8 in. beyond its natural length. how much work w is done in stretching it from its natural length to 13 in. beyond its natural length?
The required work done in stretching the spring from its natural length to the specified length is calculated to be 105.63 lb.in.
The spring is stretched for 8 in.
The force the spring holds is 10 lb.
The spring is being stretched from its natural length to 13 in.
Work done is calculated to be = ?
The relation between force, spring constant and extension is,
F = k x
Making k as subject, we have,
k = F/x = 10/8 = 1.25 lb/in
The work done in stretching from natural length to 13 in is,
W = 1/2 k x² = 1/2 (1.25) 13² = 105.63 lb.in
Thus, the required work done is calculated to be 105.63 lb.in.
To know more about work done:
https://brainly.com/question/24260356
#SPJ4
Iron-cutting scissors have short edges, whereas cloth-cutting scissors have long edges. Why
Answer:
It depends on the amount of pressure needed to cut the material.
Iron is a tougher material to cut though, so the blades must be shorter to create more pressure to break through the iron.
Cloth on the other hand is easier to cut through so the blades can be longer in order to cut more in each snip.
Explanation:
How many electrons does a gallium-(2+) ion have?
2nd question
How many electronics does a Titanium-(2-) ion have?
Answer:
gallium ion has 31 electrons
titanium ion has 20 electrons
a hiker walks with an average speed of 1.5 m/s. what distance in kilometers does the hiker travel in a time of 1.7 hours?
A hiker walking with an average speed of 1.5 m/s would travel a distance of 2.55 kilometers in 1.7 hours.
This can be calculated using the equation Distance = Speed x Time, or D = S x T. Substituting the given values, we get D = 1.5 m/s x 1.7 hours = 2.55 kilometers.
Speed is a scalar quantity that refers to how quickly an object is moving. It is typically measured in meters per second (m/s). Speed is related to how much distance an object covers over a given amount of time. The faster an object moves, the greater the distance it covers in a given amount of time, and thus the greater its speed. Speed can also be measured in other units, such as miles per hour (mph).
Learn more about average speed:
https://brainly.com/question/6504879
#SPJ4
8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. what is the rate of energy change of the system?
8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
The rate of energy change of the system can be calculated by subtracting the amount of heat lost from the system from the amount of shaft work done on the system. while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
So, the rate of energy change of the system can be calculated as follows:
Energy change = Shaft work - Heat loss
Energy change = 8 kW - 3 kW
Energy change = 5 kW
So, the rate of energy change of the system is 5 kW.
8 kw of shaft work is done on a system while 3 kw of heat is lost from the system. 5 kW is the rate of energy change of the system.
Learn more about shaft work here
https://brainly.com/question/15444804
#SPJ4
Vikram and Shruti are sitting on the back seat of a car, Vikram says that both of us are at rest while Shruti says that both of us are in motion. Then they decide to place their problem before the science teacher. The teacher explained their problem with concerning facts.
Answer:pizza party
Explanation:
If you drop an object from a height of 0.8 m, it will hit the ground in 0.40 s. If you throw a baseball horizontally with an initial speed of 17 m/s from the same height, how long will it take the ball to hit the ground?
Answer suppose to be in seconds
Answer:
The time it takes for an object to hit the ground depends on its vertical velocity, which is determined by the force of gravity. In this scenario, the vertical velocity of the baseball is determined by its initial vertical velocity (0 m/s) and the acceleration due to gravity (-9.8 m/s^2). The vertical displacement of the baseball can be found using the equation:
d = v_0t + 0.5at^2
where d is the vertical displacement (0.8 m), v_0 is the initial vertical velocity (0 m/s), t is the time, and a is the acceleration due to gravity (-9.8 m/s^2).
Rearranging the equation and solving for t:
t = √(2d/a)
t = √(2 * 0.8 / -9.8)
t = 0.44 seconds
So it takes the baseball 0.44 seconds to hit the ground.
2. (2 points) each scope probe has a short black ground wire attached to it. why is it necessary to connect this to the circuit's ground point in order to make a measurement?
If the equipment and the scope are both grounded, reconnecting the scope connection might enable measurement, but only for high- or low-frequency signals.
A frequency is what?Therefore, if a wave passes through in a half second, the rate is 2 every second. The rate is 100 times per hour if it occupies 1/10 of an hour. The number of full oscillations that any wave element makes in one unit of time is the frequency of the a sinusoidal wave.
What signs are there?To communicate with one another, humans utilise signals, which can be either gestures or messages. giving a close friend a wave.
To know more about frequency visit :
https://brainly.com/question/5102661
#SPJ4
Two unknown elements react to form a single compound. Element 1 is shiny, malleable, and conductive. Element 2 is a non-conductive gas. When they react,
what would you expect to be true about the compound produced?
A. The compound will probably have properties of both elements like a metalloid.
B. The compound will probably have high boiling points and melting points and will be conductive in solution
C. The compound will probably have low boiling and melting points and will not be conductive in solution.
D. The compound will probably have high boiling and melting points and will not be conductive in solution,
lol
The compound is created when two unidentified components combine. The material is malleable and glossy. The chemical will likely highly conductive in solution and have high melting and boiling points.
Choice B is correct as a consequence.
What is malleable strength?The solid's malleability refers to its capacity to flex or otherwise be hammered together into different form without cracking. If a substance is malleable, it may be rolled or hammered into something akin to a fine layer without being used.
What is malleable ability?Malleability is the capacity of a material, often metal, to be bent as well as molded into a new shape.
To know more about malleable visit:
https://brainly.com/question/24610841
#SPJ4
The wine poured in the pot_______ heat,. Increasing in its molecular collisions that overcome the intermolecular attraction forces. Almost immediately, part of the wine_______. You cover the pot with a lid, to let the beef cook slowly and become tasty
Heat the saucepan after the wine has been added. Growing molecular collisions that defeat the forces of intermolecular attraction. A portion of the wine starts to boil away almost instantly.
What's a good illustration of molecular attraction?Example: The polar H2O molecules are drawn to the sodium and chloride ions in the beaker when NaCl and water are combined there. This interaction's potency is determined by: how big the dipole moment is.
What draws molecules together?
Polar molecules line up so that their positive ends interact with each other's negative ends. Unlike the atoms' covalent bonds in a molecule (intramolecular bonding)
To know more about atoms visit:
brainly.com/question/14758126
#SPJ4
what is the magnitude, in meters per squared second, of the car's average acceleration during the given time period.
1.573 m/s² is the magnitude, in meters per squared second, of the car's average acceleration during the given time period.
Using given numerical values:
a_avg = ((v₁x - v₀x)/ Delta t) i + (v₁y/ Delta t) j
a_avg = (37 - 39)/2.9 i + 4.1/2.9 j
a_avg = -0.690 i + 1.414 j
Magnitude of average acceleration will be:
|a_avg| = √ ((-0.690)² + 1.414²)
|a_avg| = 1.573 m/s²
The greatest size and direction of an item are referred to as the object's magnitude in physics. Vector and scalar values both employ magnitude as a common denominator. Scalar quantities are understood to be those that have only magnitude, according to their definition. Vector quantities, on the other hand, are those that have both magnitude and direction.
Magnitude may be used in a number of different contexts. To name a few of them:
seismic event's strength
Dimension of an electron's charge
force's magnitude
Distance in magnitude
the gravitational force's strength.
Learn more about Magnitude here:
https://brainly.com/question/29766788
#SPJ4
The complete question is:
Give a vector expression for the average acceleration of the car during the given time period in terms of the variables in the problem and
unit vectors i and j.
a_ave = (V₀x + V₁x) i + (V₁y) j/Δt
Part (b) What is the magnitude of the car's acceleration during the time period in question, in m/s²?
which of the following statements about the size of temperature units is not true? group of answer choices 1 kelvin is bigger than 1 fahrenheit degree. 1 celsius degree is bigger than 1 kelvin. 1 celsius degree is bigger than 1 fahrenheit degree. 1 celsius degree is equal to 1 kelvin.
The wrong statement about size of temperature unit is 1 Celsius degree is bigger than 1 Kelvin (b)
The answer choices should have as follow :
A. 1 kelvin is bigger than 1 fahrenheit degree
B. 1 celsius degree is bigger than 1 kelvin
C. 1 celsius degree is bigger than 1 fahrenheit degree
D. 1 celsius degree is equal to 1 kelvin.
The temperature is measured using three different scales, Fahrenheit, Celsius, and Kelvin.
Celsius or °C is a part of the Metric System, that used in most countries. Celsius temperature scale is based on two points: the boiling point of water as 100° C and the freezing point of water as 0° C.Fahrenheit or °F, used in the US. Fahrenheit temperature scale is 32° for the freezing point of water and 212° for the boiling point of water. 100 degrees separate freezing and boiling on the Celsius scale, but for Fahrenheit the difference is 180 degrees. This means Celsius is 1.8 times larger than Fahrenheit.Kelvin scale. Temperatures measured on the Kelvin scale are written simply as K, not °K. Kelvin degree is the same size as the Celsius degree. The freezing point of water (0°C), and the boiling point of water (100°C), correspond to 273.15°K and 373.15°K. So, 1 celsius degree is equal to 1 Kelvin.Learn more about temperature scale at :
https://brainly.com/question/28219968
#SPJ4
how to find the frequency of a wave from the displacement of a wave traveling in the positive x -direction
The displacement y of a wave travelling in the x-direction is given by y=10−4sin(600t−2x+2π) metres.
Where x is expressed in metre and t in second.
What is motion?
Objects, bodies, matter particles, matter fields, radiation, radiation fields, radiation particles, curvature, and space-time are only a few examples of physical systems where motion is applicable. One may also discuss the movement of borders, shapes, and images. The word "motion" often refers to a continual change in the positions or arrangement of a physical system in space. One can discuss the motion of a wave or a quantum particle, for instance, where the configuration is the likelihood that the wave or particle would occupy a particular place.It should be noted that when the wave is travelling in the positive x-direction, the equation for the wave is given as y=Asin(kx−ωt).
But if this wave is travelling in the negative x-direction then the wave equation is given as y=Asin(kx+ωt)
To know more about the motion, click the link given below:
https://brainly.com/question/22810476
#SPJ4
a ball is thrown straight up from ground level. it takes 30 seconds for the ball to fall back to ground level. as the ball is going upward, what is its upward speed when it is 10 feet above the ground?
The ball is 10 feet off the ground, it has a climbing velocity of 1.33 feet/second.
How toe calculate the speed of the ball ?Using the equations of motion for motion, we can solve for the upward velocity of the ball when it is 10 feet off the ground.
Let's assume the positive direction is up. We know that it takes 30 seconds for the ball to bounce off the ground, so the total time the ball is in the air is 60 seconds (30 seconds up + 30 seconds down).
Using the equations of motion relating displacement, initial velocity, final velocity, acceleration, and time, we get:
displacement = (final velocity + initial velocity) / 2 * time
When the ball reaches its maximum height, its final velocity is 0. The initial velocity of the ball when it is 10 feet off the ground can be solved for:
10 feet = (0 feet/sec + v0) / 2 * (30 seconds / 2)
where v0 is the initial upward velocity of the ball. Solving for v0 gives:
v0 = 10 feet / (15 seconds / 2) = 1.33 feet/second
So if the ball is 10 feet off the ground, it has a climbing velocity of 1.33 feet/second.
To learn more about speed visit
brainly.com/question/3004254
#SPJ4
Problem 4
Eliana is changing the tire of her car on a steep hill 20 m high. She trips and drops a 10 kg spare tire.
A. What is the initial PE of the tire?
B. What is the kinetic energy of the tire at the bottom of the hill?
C. What is the speed of the tire at the bottom of the hill?
A. The initial PE of the tire is 200 Joules (PE = mgh = 10 kg x 20 m x 9.8 m/s² = 200 J).
B. The kinetic energy of the tire at the bottom of the hill is 200 Joules (KE = PE = 200 J).
C. The speed of the tire at the bottom of the hill is 14.4 m/s (KE = ½ mv² = 200 J, so v = √(2KE/m) = √(400/10) = 14.4 m/s).
What is K.E.?
Kinetic energy is the energy an object has due to its motion. It is defined as the work needed to accelerate an object of a given mass from rest to its stated velocity. It is calculated by multiplying half the object's mass by the square of its velocity. Kinetic energy is a scalar quantity, having magnitude but no direction.
To learn more about K.E.
Here: https://brainly.com/question/8101588
#SPJ1
the thermal contact resistance may be viewed as a combination of two resistances: one due to the direct contact locations at the interface, and the other due to the gaps. these two resistances: group of answer choices are in parallel. are in series. can be either in parallel or in series.
The thermal contact resistance can be viewed as being in series. The resistance due to the direct contact locations at the interface and the resistance due to the gaps are both contributing to the overall thermal resistance of the interface.
The thermal resistance of the interface is the sum of the resistances of all the components in the thermal path. If the direct contact resistance and the gap resistance were in parallel, they would have an additive effect on the overall thermal resistance, but that is not the case for thermal contact resistance.
Thermal resistance is a measure of the ability of a material or system to resist the flow of heat. It is defined as the ratio of the temperature difference across the material to the heat flux through it.
Here you can learn more about The thermal resistance
brainly.com/question/14785719
#SPJ4
how much tension must a rope withstand if it is used to accelerate a 1110- kg car horizontally along a frictionless surface at 1.20 m/s2 ?
The tension force in the rope must withstand a force of 12,270 N to accelerate the 1110-kg car horizontally at 1.20 m/s^2 along a frictionless surface.
The tension force in the rope must be equal to the gravitational force plus the net force required to accelerate the car horizontally.
The equation for this can be determined using Newton's second law of motion, which states that the net force acting on an object is equal to its mass times acceleration (F = ma).
Given that the car has a mass of 1110 kg and is being accelerated at a rate of 1.20 m/s^2, the net force can be calculated as follows:
F = ma = 1110 kg * 1.20 m/s^2 = 1332 N
Since the surface is frictionless, the only force acting against the car is gravity. The gravitational force acting on the car can be calculated using the equation:
Fg = m * g
where m is the mass of the car (1110 kg) and g is the acceleration due to gravity (9.8 m/s^2).
Fg = 1110 kg * 9.8 m/s^2 = 10,938 N
Therefore, the tension force in the rope must be equal to the sum of the gravitational force and the net force, or:
Tension force = F + Fg = 1332 N + 10,938 N = 12,270 N
To know more about Tension Force:
https://brainly.com/question/30033702
#SPJ4
if you weigh 665 n on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 17.0 km ? take the mass of the sun to be ms
The weight of an object with a mass of 665 N on the surface of the neutron star significantly higher than on Earth, due to the much stronger gravitational pull of the massive neutron star is [tex](6.67 x 10^-11 m^3 / kg s^2)[/tex].
The weight of an object on the surface of a celestial body depends on its mass and the gravitational force acting on it. The equation for the force of gravity is given by[tex]F = G * (m1 * m2) / r^2,[/tex] where G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.
To calculate the weight of an object on the surface of a neutron star with the same mass as the sun and a diameter of 17.0 km, we need to first find the mass of the neutron star and then the radius. The mass of the neutron star can be taken to be the same as that of the sun, which is approximately [tex]1.989 x 10^30[/tex] kilograms.
Next, we can use the formula for the radius of a sphere to find the radius of the neutron star: [tex]r = (3 * M) / (4 * pi * density)[/tex], where M is the mass of the neutron star and density is the average density of the star. The density of a neutron star is extremely high, on the order of several times that of atomic nuclei. For a neutron star with the same mass as the sun and a diameter of 17.0 km, the radius can be calculated to be about 5.6 km.
Finally, we can use the equation for the force of gravity to find the weight of an object on the surface of the neutron star:
[tex]F = G * (m1 * m2) / r^2[/tex]
where m1 is the mass of the object (665 N), m2 is the mass of the neutron star (1.989 x 10^30 kilograms), r is the radius of the neutron star (5.6 km), and G is the gravitational constant[tex](6.67 x 10^-11 m^3 / kg s^2)[/tex].
The weight of an object with a mass of 665 N on the surface of the neutron star would be significantly higher than on Earth, due to the much stronger gravitational pull of the compact and massive neutron star.
Learn more about Earth here
https://brainly.com/question/21576190
#SPJ4
how many weeks will the thrusters have to operate to increase the velocity of the probe to 420 miles per minute?
The thrusters must operate for 50 seconds to increase the velocity of the probe to 420 miles per minute.
What is velocity?
Velocity is a vector quantity that measures the rate of change in an object’s position. It is defined as the rate of change of displacement, or the rate of change of an object’s position over time. It has both magnitude, which is the speed of the object, and direction, which is the direction the object is traveling.
To answer this question, we must first calculate the change in velocity that is needed to bring the probe up to its desired speed of 420 miles per minute. We can do this by subtracting the current velocity of the probe from 420 miles per minute. For example, if the current velocity of the probe is 350 miles per minute, the change in velocity needed is 70 miles per minute (420 - 350 = 70).
Next, we need to calculate the thrust force that the thrusters must generate to achieve the desired change in velocity. This can be calculated using the equation Force = Mass x Acceleration, where Mass is the mass of the probe and Acceleration is the desired change in velocity divided by the time period in which it is achieved. For example, if the mass of the probe is 500 kg and the desired change in velocity is 70 miles per minute, the acceleration needed is 0.14 m/s2 (70 miles per minute / 500 kg = 0.14 m/s2).
Finally, we can calculate the amount of time that the thrusters must operate to achieve the desired change in velocity. This can be calculated using the equation Time = Force / Acceleration, where Force is the force generated by the thrusters and Acceleration is the desired change in velocity divided by the time period in which it is achieved. For example, if the thrusters generate a force of 1000 Newtons and the desired change in velocity is 70 miles per minute, the time required to achieve this is 50 seconds (1000 Newtons / 0.14 m/s2 = 50 seconds).
Therefore, in this example, the thrusters must operate for 50 seconds to increase the velocity of the probe to 420 miles per minute.
To learn more about velocity
brainly.com/question/24445340
#SPJ4
what would you expect when low pressure forms on earth's surface? group of answer choices convergence and sinking air convergence and rising air divergence and sinking air divergence and rising air
Whenever low pressure builds up upon that earth's surface, we might expect divergence and rising air.
What does physics' SI unit for pressure mean?
Pressure is defined as the force acting on a body's surface area divided by its volume. Mathematically, it can be expressed as follows: The SI pressure unit is the Pascal (Pa). Every Newton of force exerts one Pascal of pressure on a square centimeter of ground.
What factors determine pressure?
P = F / A, meaning force per unit of surface area, is the formula for computing pressure. The sign representing pressure in scientific theory is p, and the Standard unit for maintaining pressure is the pascal (symbol: Pa). One pascal is equivalent to one Newton per square meter of force applied perpendicularly to a surface.
To know more about pressure visit:
brainly.com/question/29341536
#SPJ4
Full question-
When no air resistance acts on a projectile, what will happen to its horizontal acceleration?
Answer:
Explanation:
If air resistance is ignored , then there is no acceleration in horizontal direction in projectile motion.
an airplane is flying faster than the speed of sound at the altitude of the airplane. if the speed of the airplane decreases bu tthe airplane is still supersonic, what happens to the mach cone angle?
If an airplane is flying supersonic, its speed creates a cone-shaped disturbance of compressed air known as a Mach cone. The angle of the Mach cone is dependent on the airplane's speed relative to the speed of sound. If the airplane's speed decreases while it is still supersonic, the Mach cone angle will widen.
When an airplane travels faster than the speed of sound, it generates a Mach cone. The Mach cone is created by the compression of the air in front of the airplane as it moves through the air. The Mach cone's angle depends on the airplane's speed relative to the speed of sound.
If the airplane's speed decreases while it is still supersonic, the Mach cone angle will increase or become wider. This is because the Mach cone angle is inversely proportional to the airplane's speed. The slower the airplane travels, the wider the Mach cone angle becomes.
The Mach cone angle is an important consideration in supersonic flight because it affects the aerodynamics and stability of the airplane. A wider Mach cone angle can lead to increased drag, which can affect the performance of the airplane. This is why monitoring and controlling the Mach cone angle during supersonic flight is important.
Learn more about speed of sound at:https://brainly.com/question/30401576
#SPJ4
3. A force of 10 N works on a ball over a distance of 5 m. The force is
parallel to the displacement of the ball. What is the total work done by the
force?
O -50 N
O ΟΝ
O 2N
50 N
help!!!
Answer:
2N
Explanation:
works one=force/weight
10N/5m
2N