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Questions in physics

[Answered] If you leave a wet paper towel out on a counter, it will eventually dry. Which change of state causes this?

[Answered] An incandescent lamp is operated at 120 V, and the current is 0.5 A. What is the resistance of the lamp?

[Answered] If a transverse wave travels 10 meters in 5 seconds, what is its speed?

[Answered] A satellite in space experiences direct sunlight and heats up. During periods when it receives no direct sunlight: A. The satellite cools off by radiation. B. The satellite cools off by conduction. C. The satellite maintains a constant temperature. D. The satellite cools off by convection. Which is possible?

[Answered] In order to generate electricity, nuclear power plants take advantage of this part of the electromagnetic spectrum.

[Answered] Why does the acceleration increase as the mass decreases for a given value of force?

[Answered] A stone is dropped off a cliff and is in free fall. Every second that the stone is falling, its acceleration remains constant.

[Answered] An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon?

[Answered] Consider the following controls in an automobile in motion: gas pedal, brake, steering wheel. What are the controls in this list that cause an acceleration of the car?

[Answered] The energy efficiency of a car is approximately 20%. If you put 10 gallons of gas into the car, how many gallons are "wasted"?