A ball has a momentum of 24.5 kg. m/s to the right. Another ball has a momentum of 11.5 kg · m/s to the left.
What's the total momentum of the two balls after they have a
collision?

Which two objects have the greatest gravitational force acting between them

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?