5) With a power of 0.12HP it is possible to move a piece of furniture from one place to another, in 14 seconds, applying a force of 70N on it. Calculate: a- The work done. b- The distance traveled.

a) 1250 J

b) 17.9 m

Explanation:

Convert horsepower to watts:

0.12 HP = 89.5 W

a) Work = power × time

W = (89.5 W) (14 s)

W = 1250 J

b) Work = force × distance

1250 J = (70 N) d

d = 17.9 m

so easy. just google the electromagnetic waves and it’ll pop up.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.