During any process, the net electric charge of an isolated system does not change.

Which describes the motion in a convection current? a) horizontal motion only b) vertical motion only c) linear motion d) circular motion

Question 6 Left on together, the cold and hot water faucets of a certain bathtub take 6 minutes to fill the tub.

The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and O2 gas. Which coefficients would be placed in front of water and oxygen?

Why a tractor's big tyres stop it sinking too far into soft soil?

A hydraulic machine can be used to lift extremely heavy objects. why is the fluid in the hydraulic machine a liquid rather than a gas?

Hannah has information about an object in circular orbit around Earth. mEarth = 6.0 * 1024 kg G = 6.67 * 10-11 What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

All objects are attracted to each other by the force of

Samantha wants to study circus performance when she gets to college. She has mastered many physical skills already, but she keeps falling short on her jumps.

Is this Conduction, Convection, or Radiation: The top floor of a building is the warmest.

The law that states the volume of gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is * a. Boyle's Law b. Gay-Lussac's Law c. Einstein's law. d. Charles's law.