D Question 19 6 pts (?)0 Time Elap A small container of water is isolated from its surroundings. The water inside the Attempt due container is vigorously stirred with a paddle wheel. What can we say about the 9 Minutes situation? Falling mass rotates paddle. m Fluid Rotating Insulation paddle O W > 0, Q = 0, Uint increases O W > 0, Q > 0, Uint increases O W > O, Q O, Q = 0, Uint remains constant Previous NextQuiz Instructions D Question 20 6 pts The plates of a capacitor are connected to a battery which maintains a constant electric potential difference between the positively charged plate and the negatively charged plate. An insulator with a large dielectric constant is inserted between the plates of the capacitor. As a result the total charge on each plate will... O Stay the same O Decrease O Not enough information to tell O Increase Previous Next Not saved Submit QuizQuiz mistructions D Question 21 6 pts A container of an ideal gas is at a constant temperature. Suppose that additional gas molecules are added to the container, but the temperature of the container remains the same after the additional molecules are added. Which of the following statements is true? O The total internal energy is constant and the average kinetic energy per molecule remains the same. O The total internal energy is increased and the average kinetic energy per molecule remains the same. O The total internal energy is increased and the average kinetic energy per molecule has increased. Not enough information to make any meaningful statement about the energy of the system. Previous NextD Question 22 6 pts Charge 'q' is a test charge used to measure the electric potential created by a source charge 'Q'. When the test charge is brought in from very far away and placed a distance of 'r' from the source charge, the electric potential of the source charge is Vo. What would be the electric potential of the source charge if the test charge were halved and the process were repeated? o Vo 0 4Vo O 2Vo O Vo/2 Previous Next Not saved Jimy mit QuizD Question 23 6 pts An electron is released from rest at the dot in the diagram shown below. The dashed lines are equipotential lines (lines of constant electric potential). When released the electron... - - 200 V - -150 V - 100 V O Moves downward with increasing speed Moves upward with increasing speed Moves downward at a steady speed O Moves upward at a steady speed