D Question 10 6 pts The escape speed from the Moon is much smaller than from Earth and is only 2.38 km/s. At what temperature would iodine molecules (with a molecular mass equal to 253.8 g/mol)have an average speed Vrms equal to the Moon's escape speed? O 36300 K O 9090 K 0 57700 K 19000 K D Question 11 6 pts Three point charges, q1 = 3.0 mC, q2 = -2.0 mC, and q3 = 1.0 mC, are located at the vertices of an equilateral triangle of side length 30 cm. What is the potential energy of this arrangement? 150 KJ O 330 KJ O -30 KJ Q -150 kJD Question 11 6 pts Three point charges, q1 = 3.0 mC, q2 = -2.0 mC, and q3 = 1.0 mC, are located at the vertices of an equilateral triangle of side length 30 cm. What is the potential energy of this arrangement? ( 150 kJ 330 KJ O - 30 KJ O -150 kJ D Question 12 6 pts Radiant energy from the Sun reaches the Earth at a rate of 1.70x101/ W. When 30.0% of the radiant energy is reflected and 70.0% absorbed, the average temperature of the Earth's atmosphere is 253 K or -20.0.C. If the atmosphere reflected 20.0% and absorbed 80.0% of the solar radiant energy, then what is the average temperature of the Earth's atmosphere? O -11.4. C O -10.1.CQuestion 12 6 pts Radiant energy from the Sun reaches the Earth at a rate of 1.70x101/ W. When 30.0% of the radiant energy is reflected and 70.0% absorbed, the average temperature of the Earth's atmosphere is 253 K or -20.0 C. If the atmosphere reflected 20.0% and absorbed 80.0% of the solar radiant energy, then what is the average temperature of the Earth's atmosphere? O -11.4.C O -10.1.C O -14.5. C O -12.3. C O - 17.4 . C D Question 13 6 pts A 2000 kg car is traveling at 15.0 m/s down a long mountain grade of 2.0 %. The mountain road is 5.0 km long. The heat generated at the brakes due to friction heats up the brakes. The mass of the brake system is 20.0 kg and