1. a)A 1325 kg car moving north at 27 m/s collides with a 2165 Kg car moving east at 17 m/S. The two-car stick together after the collision. What is the speed and direction of the two cars after the collision? b) Compute the work done against by gravity by a pump that discharge 600 liters of fuel oil into a tank 20 m above the pump's intake. One Cubic centimetre of fuel oil has mass of 0.82g C)A 200-g object is tied to the end of a cord and whirled in a horizontal circle of radius 1.20 m at a constant 3.0 rev/s. Assume that the cord is horizontal, i.e., that gravity is neglected. Determine (0 the acceleration of the object and (i) the tension in the cord. d) A voltmeter is to deflect full scale for a potential difference oof 5.000 V across it and is to be made by connecting a resistor Rx in series with a galvanometer. The 80 0- galvanometer deflects full scale for a potential of 20.00 mV across it. Find Rx