Why do most surfaces reflect light diffusely?

1. Most surfaces are clear.

2. Most surfaces are 100% smooth.

3. Most surfaces are not totally smooth.

4. All surfaces are smooth.

Calculate the energy equivalent in joules of the mass of a proton. [Show all work, including the equation and substitution with units.]

Holly measures the mass and the volume of metal block. Given this information, what can Holly calculate about the block? A) acceleration B) density C) force D) velocity

The convergence of two continental plates would produce

The steel beams in one part of a building will be 65 feet long. On the blueprint, the architect draws the beams 13 inches long. For another part of the building, the architect draws 8-inch beams.

A juggler throws a beanbag into the air with a speed of 1.0 How long does it take for the beanbag to reach its maximum height? Round the answer to two significant digits. Answer using a coordinate system where upward is positive. Show Calculator

A 5.5 kg box is pushed across the lunch table. The acceleration of the box is 4.2 m/s2. What was the net force applied to the box? A) 1.3 N B) 1.31 N C) 9.7 N D) 23.1 N

What is the relationship between the mass and period in a mass hanging on spring oscillation and why?

Saturn's moon Titan has a mass of 1.35 * 1023 kg. If Titan is 1.19 * 106 km from Saturn, and Saturn's mass is 5.86 * 1026 kg, what is the gravitational force between Saturn and its moon? 2.76 * 104 N 3.29 * 107 N 3.73 * 1021 N 4.43 * 1030 N

What has occured when bubbles form in a liquid that is being heated

What would happen to the supply of ATP in your cells if you did not eat enough carbohydrates?