The equation E=mc^2 relates energy and.

a. Force.

b. Mass.

c. Gravity.

d. Work.

4. Solar cells convert what type of energy into electrical energy? chemical electromagnetic nuclear thermal

Two students are playing paddle ball with a 5 kg spongy ball. If the ball is thrown at the batter with a speed of 5 m/s and bounces off with a speed of 10 m/s. What is the magnitude of the impulse imparted on the ball by the bat?

Which of these characteristics did all of the five waves of immigrants have in common A. They all had the same political beliefs B. They all spoke English C. they all valued education D. They all had the same religious beliefs

A car travels between 100-mile and 25-mile markets on a highway in 3 hours. The average speed of the car during the interval is

The mass of Planet X is one-tenth that of the earth, and its diameter is one-half that of the earth. the acceleration due to gravity at the surface of Planet X is most nearly ...

What is the resistance of a clock if it has a current of 0.30 a and runs on a 9.0-v battery? 0.033 2.7 9.3 30

A child is sledding. He starts at the top of the hill with a velocity of zero, and 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration?

An accelerating voltage

A speck of dust on a spinning dvd has a centripetal accelera - tion of 20 m/s2. a. what is the acceleration of a different speck of dust that is twice as far from the center of the disk? b.

An object travels 8 meters in the first second of travel, 8 meters again during the second second of travel, and 8 meters again during the third second. Its acceleration is A. 0 m/s^2 B. 8 m/s^2 C. 16 m/s^2 D. 32 m/s^2