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. A completely submerged 0.41-ke ball is attached by a cable of negligible mass to the bottom of a tank of gasoline. as shown. The volume of the ball is 0.0075 m" (Pgasolme = 680 kg/m' ). (a) Find the mass of gasoline displaced by the ball. (b) Find the magnitude of the buoyancy force of gasoline. (c) Find the tension in the cable. 2. In the circuit shown. / = 1.2 A and R = 25 0. i = 1.2 A (a) Find the value of the voltage source. (b) Find the power used by the resistor. SA = 25 Q (c) Find the energy consumed by the resistor in 0.0025 minute. 3. A 24-kg block rests on a plane that is inclined 60 to the horizontal. This block is connected to a 6.0-kg block by a rope of negligible mass that passes over a massless, frictionless pulley, as shown. The coefficient of kinetic friction between the block and 24 Kg 6.0 kg the inclined plane is 0.16. (a) Find the acceleration of the blocks. (b) Find the tension in the rope. 4. A wall is connected to a mass of 6.0 kilograms by a string that passes over a massless. frictionless pulley. as shown. The string has a uniform mass of 0.327 kilogram and a length of 5.0 meters. A wave pulse traveling along the string has a wavelength of 0.25 meter. (a) Find the speed of a wave pulse traveling along the string. 6.0 kg (b) Find the frequency of a wave pulse traveling along the string. 5. Marie throws a rock into the air from a height of 38 meters. The initial velocity of the rock is 25 meters per second at an angle of 30' above the horizontal. as shown. Neglect air resistance. (2) How long does it take for the rock to hit the ground? (b) How far does the rock travel horizontally? 38 m