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

In order to be considered work, the components that must be present are a force and a movement in the same direction as the force. an action which causes movement and an opposite reaction. an action which causes no movement or reaction.

Compare all the organisms. What trend do you see?

Which simple machine is best suited to assist with the task of moving heavy objects into a moving truck 1.5 meters above the ground A. screw B. pulley C. wedgd D. inclined plane

In how many ways can the energy of system a be distributed?

5. Why might it be useful to determine the elements that a planet or moon is made up of?

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series