Energy that is not in use and availible to do work

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.

if i understood you you wish to calculate power from voltage and current.

we have voltage of 220 volts and current of 5.3 amperes. the power is equal to the product of voltage and current.

where p is power, u is voltage and i is current.

so,

hope this .

r3t40