a mule pulls a cart of milk 10 meters, with a force of 50 newtons calculate the work done by the mule

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe

Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.