99 percent of the earth's atmosphere by mass is made up of only elements. These elements are

A) Carbon and oxygen

B) Nitrogen and oxygen

C) Hydrogen and oxygen

D) Helium and hydrogen

During sublimation particles in a solid room deodorizer move directly into the air as a gas how does the movement of the deodorizer particles change? the particles ___.

A cylinder which is in a horizontal position contains an unknown noble gas at 54700 Pa 54700 Pa and is sealed with a massless piston. The piston is slowly, isobarically moved inward 0.150 m 0.

The first device Faraday invented based on Ørsted's observation was the motor. What did this device do?

Calculate the force exerted on this test dummy with a mass of 75 kg hits an air bag accelerating at 12 m/s2.

At a distance of 0.218cm from the center of a charged conducting sphere with radius 0.100cm, the electric field is 460N/C. What is the electric field 0.596cmfrom the center of the sphere?

Which is a use of fiber optics?

When a positively charged conductor touches a neutral conductor, the neutral conductor will:

Definition of the rule E=mc^2

A 3.7 kg block is pushed along a horizontal floor by a force modifyingabove upper f with right-arrow of magnitude 25 n at a downward angle θ = 40°. the coefficient of kinetic friction between the block and the floor is 0.26.

When one object heats another, does the temperature increase of one object always equal the temperature decrease of the other object? Explain