How much work will it take to lift a 2-kg pair of hiking boots 2 meters off the

ground and onto a shelf in your closet?

O A. 2.45 J

B. 4J

C. 39.2 J

D. 20 J

What is the force exerted by a catcher's glove on a 0.15 kg baseball moving at 35 m/s that is stopped in 0.02 sec?

A charge Q generates an electric field of strength E at a distance d away. Determine the electric field strength at d and 2d, respectively:

Which of the following causes a chemical change? A. burning B. moving C. shattering

If r = KL/d2 find L to the nearest tenth foot if r = 2.5 ohms, k = 10.8 and = 85 mil

A student is measuring the effects of an electric circuit on a compass, and he is testing to see increasing the current will cause the compass needle to change direction faster. He does one trial using a 9-volt battery and another trial using a 1.

a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a speed of 100 km/h. Which kinetic formula would be most useful to solve for the target unknown?

When a covalent or an ionic bond is formed a chemical change has occurred. Which of these is not associated with a chemical change? A) The atoms of the substance produced have been rearranged.

Two 8 ohm resistor in parallel

After a quick review of the textbook, rank the following elements in order of increasing density: (A) copper, (B) nickel, (C) titanium, (D) silicon.

How much power is expended if you lift a 60 n crate 10 meters in 1 second? a. 0 w b. 6 w c. 10 w d. 60 w e. 600 w?