HELPPP Which of the following regarding speed and velocity is true?
A. Velocity includes both magnitude and direction
B. Speed includes magnitude and direction
C. Both speed and velocity include magnitude and direction; they measure the same thing
D. Velocity includes magnitude but not direction

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?