You serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s.

What is the equation used to calculate the total amount of energy used by an appliance?

two objects are in uniform circular motion at the same speed but at different radii. the ones with the __ radius has the largest centripetal acceleration.

The area of a rectangular park is 4 mi^2. The park has a width that is equal to "w", and a length that is 3 mi longer than the width of the park. Find the dimensions of the park.

A train car with mass m1 = 663 kg is moving to the right with a speed of v1 = 8.8 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 5.3 m/s.

What is the charge of fluorine if it gains 1 electron

What are the SI units of measure for length, mass, and liquid volumes?

The saclike structure that surrounds the glomerulus is the. a. renal pelvis b. calyx c. bowman's capsule d. cortex e. none of the above

A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.

Why do people use Earth's motions to determine units of time?

Which of the following could be described as "Energy cannot be created or destroyed, only converted into other forms"? A. Rebound-crumple theorem B. Impulse-momentum theorem C. Law of conservation of energy D. Law of conservation of momentum