Aramp leading to the entrance of a building is inclied upward at an angle of 7 degree. a suitcase is to be pulled up the ramp by a handle that makes an angle of 35 degree with the horizontal. how mch force must be applied in the direction of the handle so that the component of the force parallel to the ramp is 50 lbs?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.