Determine the distance between centers of two planets whose masses are 1.1 x 10^24 kg and 1.4 x 10^21 kg and the force of gravity that one
planet feels due to the other is 2.2 x 10^20 Newtons. *

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

1 is a answer of a question