Recent content by designer rose

1.A man has a hydraulic jack to lift his car. If the smaller piston has a diameter of .75 cm, and the larger piston a diameter of 6.0 cm, how much force will the man have to exert to lift one corner of the car, weighing 700 lb?

1a. What is the total lateral force on a vertical dam 75 ft high and 135 ft wide if the water comes up to the very top of the dam? I think I got the answer to this one, is it 2.4 x 10^7? 1b. What is the pressure on the lake bottom next to the dam?

1. How many moles of O[SIZE="1"]2 gas are in 5.0L container of 4.0 atm and 288K?