According to Ptolemy's model of the movement of celestial bodies, A. the sun is the center of the universe. B. the earth rotates around the moon. C. planets orbit in circular paths around the earth. D. the earth rotates around the sun.

Compare and contrast lava and magma

In the free-body diagram shown above, which of the following is the gravitational force acting on the car? a. 5800 N b. 755 N c. 14700 N d. 13 690 N

An RLC circuit with a resistor of R/:=/:1 R = 1 k, capacitor ofC/:=/:3 C = 3 F, and inductor ofL/:=/:2 L = 2 H reaches a maximum current through the inductor of 7 mA.

Is a chipmunk a producer

You are pulling on a rope. Which example would result in the greatest force of friction between your hands and the rope? A. a tight grip on a smooth rope B. a loose grip on a smooth rope C. a tight grip on a rough rope D.

Wright true or false: 1. A baseball has more momentum than a tennis ball traveling at the same speed. 2. A light ball has more inertia than a heavy ball 3. The less momentum a bowling ball has, the easier it is for that ball to knock down pins. 4.

The interference of two sound waves of slightly different frequencies produces

8. A force of 80 pounds on a rope is used to pull a box up a ramp inclined at 100 from the horizontal. The rope forms an angle of 330 with the horizontal. How much work is done pulling the box 25 feet along the ramp?

A raindrop has a mass of 5.4 * 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted (a) on the raindrop by the earth and (b) on the earth by the raindrop.

As an astronaut travels towards Earth, her weight A. decreases because gravity decreases. B. decreases because her mass decreases. C. increases because gravity increases. D. remains the same because her mass remains the same.