4. A car is accelerating at 40 m/s2, if the car is 400 kg how much force must be supplied from the engine?*

If a simple machine reduces the strength of a force, what must be increased?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory