If the mass of an object is decreased, its gravitational force will 1. decrease 2. decrease by the distance squared 3. increase 4. increase by the distance squared

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

How can you increase the strength of an electromagnet?