If the kinetic energy of an object is tripled, by what factor is its speed increased? b) if the speed of an object is reduced to ΒΌ its original value, by what factor does...
If the kinetic energy of an object is tripled, by what factor is its speed increased? b) if the speed of an object is reduced to ΒΌ its original value, by what factor does...
The series-200 train has one of the highest operating speed: 76.4 m/s. If a series-200 train has a maximum kinetic energy of 2.78 x 109 J, what is its mass?
A 5g apple is thrown straight upward with an initial velocity of 20 m/s @ a point of 1.5m height from ground. Ignoring air friction, find: a. Total mechanical energy of the...
A boy pulls a 10.0 kg book rack at rest on a smooth floor with a constant horizontal force of 1.2N starting from rest. Compute the change in kinetic energy of the box after the...
if the average kinetic energy of a substance changes, a. its temperture changes b. it may change phase c. thermal energy has been transferred into or...
Suppose at P point, a body loses its entire K.E which it had at O point and at Q point body losses 1/3 of its K.E which is at has at O. Find out the height h.
A 15-g CD with a radius of 7.5 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy?