What is a watt a unit of?

power

distance

time

light

Why do my hair change colors?

You have a fish tank with a square 10 x 10 cm bottom surface. You fill it 9 cm deep with water. What is the force in N on the bottom plate of the tank due to the water (neglect atmospheric pressure)

Find the electric flux (in N m2/c) through a rectangular area 5.0 cm x 4.0 cm between two charged parallel plates where there is a constant electric field of 27 N/C for the following orientations of the area. (Enter the magnitudes.

The Moon orbits Earth and not the Sun because the Sun doesn't exert a gravitational force on the Moon. true or false

What important astronomical object did the observer William Herschel discover with his telescope in the late 1700s?

Calculate the energy released as heat when 51.60 g Cu 2 O (s) undergo oxidation at constant pressure.

During summer vacation, Juan traveled a total distance of 400 miles. His trip took 8 hours. What was the average speed during his trip?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?