An overnight rainstorm has caused a major roadblock. three massive rocks of mass m1=584 kg, m2=838 kg, and m3=322 kg have blocked a busy road. the rocks are lined up from left to right in the order m1, m2, and m3. the city calls a local contractor to use a bulldozer to clear the road. the bulldozer applies a constant force to m1 in order to slide the rocks off the road. assuming the road is a flat, frictionless surface and the rocks are all in contact, what force, , must be applied to m1 to slowly accelerate the group of rocks from the road at 0.250 m/s2?

Use henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.7 l of water upon warming from 25 ˚c to 50 ˚c. assume that the water is initially saturated with nitrogen and oxygen gas at 25 ˚c and a total pressure of 1.0 atm. assume that the gas bubbles out at a temperature of 50 ˚c. the solubility of oxygen gas at 50 ˚c is 27.8 mg/l at an oxygen pressure of 1.00 atm. the solubility of nitrogen gas at 50 ˚c is 14.6 mg/l at a nitrogen pressure of 1.00 atm. assume that the air above the water contains an oxygen partial pressure of 0.21 atm and a nitrogen partial pressure of 0.78 atm.