If a balloon is heated, what happens to the volume of the air in the balloon if the pressure is constant? a it decreases. b it increases. c it stays the same. d the change cannot be predicted.

3. Identify each statement as true or false. Current equals the product of voltage and resistance for an ohmic device. The greater the length of a wire, the higher the resistance of the wire.

If a baseball is thrown horizontally, what kind of vertical velocity does it have? A. none B. a constant velocity C. one that increases over time

What is the specific heat capacity of water?

How much force is needed to accelerate a 1,100 kg car at a rate of 1.5 m/s2?

Identical satellites X and Y of mass m are in circular orbits around a planet of mass M. The radius of the planet is R. Satellite X has an orbital radius of 3R, and satellite Y has an orbital radius of 4R. The kinetic energy of satellite X is Kx.

How are the functions of the cytoskeleton and the cell wall similar

1. How many electrons does the K level of an atom hold?

A puck traveling at 6 m/s in the + x direction hits a wall and bounces back. Right after the collision with the wall it is traveling in the - x direction at 6 m/s.

Sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consumption. Why is this?

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset