The sun is stable because the force of gravity is balanced by the thermal pressure created by the reactions in its core. the sun will remain stable a) as long as the outer surface of the sun remains solid b) as long as there is a sufficient source of energy within the sun. c) as long a the planets continue orbiting the sun d) as long as the gravity of jupiter does not act on the sun

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

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 = 2.6 m below the tank bottom which is a = 6.7 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). report your answer in meters to two decimal places.