What is the mechnical advantage of a machine that applies a force of 1000 N to an object when a force of 500 N is applied to the machine?

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

Often called simply "velocity," this is the velocity of an object at a particular moment in time.