fired, the ball moves 15.9 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.032 8 N on the ball. (a) With what speed does the projectile leave the barrel of the cannon

Explanation:

Where is the remaining part of the question? This is a very easy one

explanation:

specific heat is the amount of heat required to raise the temperature of a unit mass of a substance.

think about the oscillation of the toy shown in the video. when the toy is at the highest point of its motion, its velocity is zero and its acceleration is negative.