What are cosmic rays mostly made up of?

What is the best description of a wave? A) a vibration that carries energy B) a disturbance that moves matter C) a medium disturbed by a vibration D) matter that is moved from one place to another

How does the moons diameter compare with the distance between the earth and the moon?

If a star is 50 light-years away from earth, how long will it take light to travel from star to earth?

A dinner plate falls vertically to the floor and breaks up into three pieces, which slide horizontally along the floor. immediately after the impact, a 200-g piece moves along the + x-axis with a speed of 2.

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

Which is the relationship between algae and fungus? Options: Parasitism. Commensalism. Mutualism.

Photosynthesis is an endothermic chemical reaction that forms sugars from carbon dioxide, water, and the sun's energy. Which of the following must be true of photosynthesis?

What is a calorimeter used to measure?

When the mover pushes the box, two equal forces result. Explain why the box moves

What equation expresses the the work-energy theorem?