If a rock falls from a cliff at what point are its kinetic and potential energy the same? ignore air resistance. assume gravitational energy is relative to the bottom of the cliff. a. just as it starts to fall
b. halfway down
c. just before it hits the bottom
d. never
e. always​

Ajogger accelerates from rest to 4.86 m/s in 2.43 s. a car accelerates from 20.6 to 32.7 m/s also in 2.43 s. (a) find the magnitude of the acceleration of the jogger. (b) determine the magnitude of the acceleration of the car. (c) how much further does the car travel than the jogger during the 2.43 s?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

Need this now! do pilots live long