Answer:

Explanation:
= Coefficient of friction
g = Acceleration due to gravity
m = Mass of box = 
a = Acceleration of the block = 
Acceleration is given by

Friction force is given by

The magnitude of the force of friction on the box as it moves with the truck without slipping is
.
P represents heating and Q represent cooling.
this is because when you start from a liquid and turn to a gas the particles move faster making them farther apart, causing a gas. the opposite happens when you go from a liquid to a solid. the partials move closer together causing a solid to form. :)
Use that one thing. what’s a DVOM?
Answer:
the answer for you to know the status report playback issue me with Ananya hot to me I am not sure if it helps you