A spring is used to measure the centripetal force. Since a spring will exert a restoring force equal to the force applied to it, the centripetal force can be verified by measuring the amount of force need to stretch the spring a distance. We will assume a spring constant of 9m/N, That is it 1 N of force to move the spring 9 meters. For 6 different radius, covering the radius scale, calculate the force needed to stretch the spring.

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

What is the relationship between the direction of motion of the balloon and the wind currents