Each of the coil springs of a car has a spring constant of 25,000 N/m. How much is each spring compressed if it supports one-forth of the car’s 12,000 N weight?

If steel is more dense that lake water, why can a boat float

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?