When ball is thrown vertically upward. As it rises, what happens to its kinetic energy Kinetic energy decreases.
At the highest point, the kinetic energy is zero because all the kinetic energy is converted to potential energy. Therefore the kinetic energy is zero at the highest point. Kinetic energy is the energy that an object possesses due to its motion. Therefore, if an object is thrown straight up, its kinetic energy is zero at its maximum height.
An object thrown vertically upwards will be slowed down by the earth's gravity. Its speed decreases until it reaches a maximum altitude where the speed becomes zero. Gravity then accelerates it downward evenly. If you throw a ball into the air, it will point up, but gravity will slow it down. The ball is slowing down and has zero velocity at the top of its flight.
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Answer:
Explanation:
An adiabatic process refers to one where there is no exchange of heat.
The equation of state of an adiabatic process is given by,
where,
= pressure
= volume
= constant
Therefore, work done by the gas during expansion is,
(using )
When an object is moving around in circles, there are two forces that keeps it in its circular orbit. These are the centripetal and the centrifugal forces. They are equal in magnitude, but they differ in the direction. The centripetal force is the force that pulls the object toward the circle's center. The centrifugal force is the force that pushed the object away from the circle's center.
Applying Newton's Second Law of Motions, any force is equal to its mass times its acceleration. For an object moving in circles, the force here is centrifugal or centripetal force, and the acceleration is the centripetal or centrifugal acceleration which is equal to
a = v²/r,
where v is the linear or tangential velocity
r is the radius of the circle
Applying this to Newton's Second Law of Motion,
F = mv²/r
Substituting the values,
F = (1,520 kg)(24 m/s)²/455 m
F = 1,924.22 N
Explanation is in a file
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