Sally stands 3 meters from the fulcrum. Reggie weighs 800 N and stands 2 meters from the fulcrum. The see saw is balanced. How much does sally weight?

A ball is thrown 24 m/s into the air. How high does it go?

Why dont the nuclei have permanent electric dipole moments; buthave only magnetic dipole moments, while the molecules can have bothelectric and magnetic dipole moments?

In a process called photosynthesis, plants use carbon dioxide and water, along with energy from sunlight, to produce sugar and oxygen.

Now is studying wave a and wave b. Wave A is rated at 100 dB, and wave B is rated at 90 dB. Which statement can be made about the waves?

Why does a pendulum eventually stop swinging?

A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input force is applied to this machine

Why do you float in space

How does physical change affect the identity of a substance

A scientist pours grape juice on three identical white shirts He then uses three different cleaning products on the shirts and measures how clean they get what is the independent variable in this experiment

What part of the atom does nuclear radiation come from?