How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s squared

A heavy object and a light object in a vacuum are dropped at the same time from rest. The heavy object reaches the ground later than the light object. at the same time as the light object. sooner than the light object.

The gravitional attraction between two objects will if the objects move farther apart

Which statement about conduction is true? 1. Conduction uses electromagnetic waves. 2. Conduction transfers energy from one particle to another 3. Conduction from a fireplace can heat an entire room.

Which of the following statements are true? Check all that apply. Check all that apply. The speed of sound is constant. The pitch of a sound is determined by its frequency. The loudness of a sound is related it its amplitude.

In a motor, the combined effect of electric currents and magnetic forces turn electrical energy into which of the following? A. a battery B. a generator C. mechanical energy D. electromagnetic energy

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor

Let's now apply our equations for the normal modes of open and closed pipes. On a day when the speed of sound is 345 m/s, the fundamental frequency of an open organ pipe is 690 Hz.

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

How many chromosomes will an elephant's sperm have?

Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that was moving upward at constant velocity