Question 19 Not yet answered Marked out of 1.00 An alpha particle at rest possesses 3.50 x 10-15 J of energy when it is at a position A, in the electric field produced by a negative point charge. The alpha particle at rest possesses 7.50 x 10-1 J of energy when it is at position B from the negative point charge. To move from position A to position B: O a. the alpha particle loses kinetic energy and work must be done on the alpha particle b. work must be done on the alpha particle and the alpha particle will gain electrical potential O energy O c. the alpha particle gains kinetic energy and work can be done by the alpha particle O d. work is done by the alpha particle and the alpha particle will lose electrical potential energy Question 20 Not yet answered Marked out of 1.00 when it is hit ANot yet answered Marked out of 1.00 A 1280 kg car is sitting in an intersection waiting to make a left turn when it is hit broadside by a 1640 kg SUV running a red light at 8.35 m/s [N]. After the 0.245 s collision, the vehicles remain locked together and skid down the street. Based on the information in the above narrative, the collision would be inelastic with a loss of kinetic energy of O a. 75.4%. O b. 43.8%. O c. 56.2%. O d. 24.6%. Next page Previous page 13 C Q SearchQuestion 21 Not yet answered Marked out of 1.00 4 0.0380 kg model rocket is mounted on a nearly frictionless horizontal rail for testing purposes and a 0.0964 kg rocket engine is placed in the model. The rocket engine is designed to give a constant thrust of 13.8 N for the 0.856 s burn, until the mass of the engine is reduced to 0.0080 kg and it flames out. Using momentum to analyze the above scenario is superior to using the Fnet = ma form of Newton's second law mostly because O a. time is a factor. O b. force is not given. O c. acceleration is not given. O d. both the mass and velocity change Question 22 Not yet answered Marked out of 1.00