What are the differences between refraction and diffraction?

What did the biologist wear on his first date?

When a rubber band is pulled back on your finger but not yet let go how is that potential energy?

At the beach, differences in temperatures create wind which transfers heat between the land and the water. The same process is also seen in the ocean as the gulf stream carries heat from the tropics northward.

The amount of energy carried by a wave is proportional to the square of the wave's A. frequency B. amplitude C. wavelength D. period ... ?

A ball is thrown straight up with a speed of 3/frac{m}{s}, and it hits the ground with a speed of 15/frac{m}{s}. How tall is the tower? Ignore air resistance, and answer in meters.

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases? A. The resistance has increased. B. The volts have decreased. C. The power has increased.

The velocity - time graph of a ball of mass 25g moving on road is as given below: (a) How much force does the road exert on the ball to bring it to rest? (b) What is the direction of the force exerted by the road?

A spring required a force of 5.0 n to compress it 0.1 m. How much work is required to stretch the spring 0.4 m?