What is the energy equivalent of an object with a mass of 1.05 g? 3.15 * 105 J 3.15 * 108 J 9.45 * 1013 J 9.45 * 1016 J

Dimensional analysis can be used to check equation validity because each unit can be treated as an algebraic quantity to verify that the answer has the correct units.

Wire A has the same length and twice the radius of wire B. Both wires are made of the same material and carry the same current.

A baseball has a mass of 0.145 kg and is 12 m above the ground. If it has a mechanical energy of 105.8 J, how fast is it moving? 17 m/s 35 m/s 89 m/s 130 m/s

A ball is dropped from a cliff that is 256 feet high. The height of the ball (in feet) after t seconds is given by the formula h (t) = 256 - 16t^2. How many seconds (to the nearest tenth) will it take for the ball to hit the ground? A. 4096 sec B.

Metallic bonding generally occurs between

What is the turntable's angular velocity at t = 2.5 s? express your answer to two significant figures and include the appropriate units?

You wish to lift a 12,000 lb stone by a vertical distance of 15 ft. Unfortunately, you can only generate a maximum pushing force of 2,000 lb. What is the amount of work you must input in order to move the stone

Nonrenewable energy resources do not include which of the following?

A scientist has found a new drug that appears to provide weight loss in humans without dieting. The scientist has tested the drug on thousands of people and has found a few side effects.

If there are 20 Earthworms in a garden that covers 5 square meters, what is the population density of the earthworms? A. 20 Earthworms B. 4 C. 100 Earthworms per square meter D. 4 Earthworms per square meter