A ray of yellow sodium light enters water from air with an angle of incidence of 45°. What is the angle of refraction?

Why does the frequency change and wavelength not change in an instrument?

A circuit contains an AC voltage source, a resistor, and another component. The voltage amplitude is held constant as the frequency is increased. The current in the circuit is observed to increase as the frequency is increased.

When jumping, a flea accelerates at an astounding 1500 m/s2, but over only the very short distance of 0.41 mm?

Humans experience the longest visible electromagnetic waves as

When a golfer tees off, the head of her golf club, which has a mass of 160 g, is traveling 50 m/s just before it strikes a 46 g golf ball at rest on a tee.

An ant is crawling along a straight wire, which we shall call the x axis, from A to B to C to D

How does a very heavy object resist sliding sideways when you push hard on it?

A go-cart traveled at 200 meters in 18 seconds. what was the average speed of the go cart?

A cartoon plane with four engines can accelerate at 8.9 meters per second squared

Convert 1087 ft/s to mi/hr