A 0.700-kg particle has a speed of 1.90 m/s at point and kinetic energy of 7.10 J at point . (a) What is its kinetic energy at ? J (b) What is its speed at ? m/s (c) What is the net work done on the particle by external forces as it moves from to ?

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.

see earlier

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.