An elephant is pulling a log.
Which arrow shows the force of friction on the log?

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

close lines strong magnet less close weaker