Helium is less than the elements that make up the air we breathe, so a balloon filled with helium will float in air.

Define the word projectile

What does the rate of solution measure how fast a substance recipitates how fast a substance dissolves how much of a substance dissolves how much of a substance precipitates

Terry is convinced that heating peanut butter will increase its mass so that it covers more bread. Is he correct? A. No, mass is only equal to temperature B. No, heating matter does not affect mass C. Yes, mass is directly relates to temperature D.

How much volume (in cm3) is gained by a person who gains 11.4 lbs of pure fat?

By what means (or force) can the atoms in compounds be separated? a. Physical c. Proximate b. Experimental d. Chemical

What are the units of speed or velocity

List the colors of visible light in order of decreasing frequency physics

You can identify a pure substance if you know it's?

A rod of mass M and length L can rotate about a hinge at its left end and is initially at rest. A putty ball of mass m, moving with speed V, strikes the rod at angle θ from the normal and sticks to the rod after the collision.

A satellite with a mass of 2,000 ㎏ is inserted into an orbit that is twice the Earth' s radius. W hat is the force of gravity on the satellite? The radius of the Earth is 6380 km, and the mass of the Earth is 5.98 X 1024 kg a. 2,000 N h.