What enables a fish to float up and down in the water

3. A 3.0 * 10-3 kg copper penny drops a distance of 50.0 m to the ground. If 65 percent of the initial potential energy goes into increasing the internal energy of the penny, determine the magnitude of that increase.

Color is a result of the absorption and reflection of light. A shirt appears a color because it reflects that color of light. A shirt appears black when it absorbs all wavelengths of light. Why does a shirt appear white outside on a sunny day? A.

If air resistance is negligible what maximum height will be reached by a stone thrown straight up with an initial speed of 35 m/s?

A boat moves up and down on a lake as a wave passes by. If the boat oscillates 10 times in 2 seconds, what is the period of the wave? 0.2 seconds 2 seconds 5 seconds 10 second

You performed an experiment in which you measured the amount of water leaking through different types of roofs. For one roof, you measured a volume of 13.2 ounces. What is this measurement in Sl units? 1 lb = 16 oz; 1 kg = 2.2 lbs. A. 0.375 kg B. 0.

What do we mean when we say the universe is expanding, and how does expansion lead to the idea of the big bang and our current estimate of the age of the universe?

What is the gravity on the moon

Degausser creates a magnetic field that erases data from magnetic storage media. a. True b. False

Which ever changes during a physical change?

Calculate the acceleration if you push with a 20 n horizontal force on a 4 kg block on a horizontal friction-free air table.