Two examples of energy transformations are a lamp and a fire. The energy transformations are similar because they both

A. begin with chemical energy.

B. begin with electrical energy.

C. result in radiant energy.

D. result in mechanical energy.

A solar-powered car is traveling at constant speed around a circular track. what happens to the centripetal acceleration of the car if the speed is doubled?

What is the average speed of the car from 0 to 10 s?

A wire is stretched between two posts. Another wire is stretched between two posts that are twice as far apart. The tension in the wires is the same, and they have the same mass. A transverse wave travels on the shorter wire with a speed of 249 m/s.

Who has the most power? athlete A (bench presses 100 kg over 0.6 m in 0.5 s) athlete B (bench presses 150 kg over 0.6 m in 1.0 s) athlete C (bench presses 200 kg over 0.6 m in 2.0 s) athlete D (bench presses 250 kg over 0.6 m in 2.5 s)

A basketball rolls to a stop along a gym floor without anyone touching it. What answer choice BEST explains why this occurred?

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

A 1500 kg car accelerates uniformly from rest to reach 10.0 m sin 5.00 s. Determine (i) the average power delivered by the engine.

What is 1/3 of 300

What geologic features might form at the surface of plate A?

Is it true that mollusks that live in water have lungs