Answer:
The heat causes the molecules on rubbing surfaces to move faster and have more energy.
Well according to Newton’s first law of motion, a body will remain in the state of rest or linear motion provided that an *external force* has been applied. So no, a force doesn’t need to keep a body to remain in linear motion, because F=ma, during uniform linear motion velocity is constant, hence acceleration is zero, so F=0
I’m not good with physics but I’m good with the theory what goes up must come down
You have to divide the pressure exerted by the air into two partial pressures: of the dry air and of the water vapor. Combining these two values gives you the parameter.
B. F<em>spring = k(triangle)</em> x
