Niagara falls is a good example of
a.
kinetic energy being converted into potential energy.
b.
potential energy being converted into kinetic energy.
c.
energy being lost.
d.
energy being created.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

How is the ideal mechanical advantage of a wheel and axle calculated?