A student walks 3.0m [E] and then 4.0m [N] in 5.0s.
What is his average speed?
What is his average velocity?

average speed and velocity are 0.5m/s (squared)

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

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

c) both a and b.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible