Aforce of 25 newtons moves a box a distance of 4 meters in 5 seconds.
the work done on the box is nm, and the power is nm/s.

By definition, we have that the work done is given by:

Where,

F: force in the direction of displacement

d: displaced distance

Substituting values we have:

Then, the power is given by:

Where,

t: time

Substituting values we have:

The work done on the box is 100 Nm, and the power is 20 Nm/s.

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

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

c) both a and b.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.