Is the speed of light faster in helium or air?

Substances whose atoms readily give up electrons are considered to be which of the following? A) Highly ductile B) Good insulators C) Highly malleable D) Good conductors

Which of the following describes continental crust? Select all that apply A. Granite B. Plastic like C. Relatively thick D. Relatively low density

A worker is holding a filled gas cylinder still. Which two sentences are true about the energy of the filled gas cylinder? It has no energy because it's being held still. It has gravitational potential energy because of its height.

An ice cube (n = 1.31) has a layer of water (n = 1.33) on it. What is the critical angle for a ray in water trying to enter the ice? (Unit=deg)

What is the effect of pressure on the volume of a gas?

Explain why science is a continuous progression of study

If your at the mall with your friends and they shoplift what would you do

Fluid is leaking from an axle seal. Technician A says to remove the wheel and check for incorrectly installed brake components. Technician B says to check for obstructions at the differential breather.

All matter we encounter in everyday life exists in one of three physical formss True or False.

15 grams of liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic after the change?