Determine the maximum speed at which the car with mass m can pass over the top point A of the vertical curved road and still maintain contact with the road.(Figure 1) Express your answer in terms of some or all of the variables m, r, and appropriate constants. If the car maintains this speed, what is the normal reaction the road exerts on the car when it passes the lowest point B on the road? Express your answer in terms of some or all of the variables m, r, and appropriate constants.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.