A florescent light tube usually contains what?

A a vacuum

B oxygen

C. Mercury vapor

D. Light emitting diodes

What type of weathering has the greatest affect om Earth's surface

1. A container has a mass of 36 kg. How much does the container weigh?

A 75-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20.

Why is stepping on a can considered a physical change?

Suppose your hair grows at the rate of 1/26 inches per day. Find the rate at which it rows in nanometers per second. Because the distance between atoms in a molecule is on the order of 0.

Sound waves move through some liquid at a speed of 1500 m/s. If the wavelength is 3 m, what is the frequency of the wave?

What is the wavelength of radar waves with the frequency of 6.0 x 10 ^10 Hz?

a machine is required to produce and output force of 600 newtons. if the machine has a mechanical advantage of 6, what input force must be applied?

Small air bubbles rise slowly while big bubbles rise rapidly through the liquid. why?

Photosynthesis and respiration are important because they produce or breakdown food to release energy.