21 Topic 6 Practice with solutions x G efficiency of heat engine formu x D21 Quizzes - PHY1321*[B] Princip x *Course Hero X + C uottawa.brightspace.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou=324255&isprv=&drc=0&qi=289284&cfql=0&dnb=0&fromQB=0 I P ... Microsoft Office H... N Netflix The #1 Singing Le. Google Translate IELTS Registration My Citation Lists |.. DW The Daily Wire S Watch FREE Movi. D21 Homepage - Univ. ASSIGNMENT 3 X Jiaxi He: Attempt 1 V V V Question 11 (1 point) 7 8 9 The temperature at the surface of the Sun is approximately 5,900 K, and the V V temperature at the surface of the Earth is approximately 285 K. 10 11 12 What entropy change occurs when 1,360 J of energy is transferred by radiation from V the Sun to the Earth? 13 14 15 [ Give your answer in J/K to the nearest 0.001 J/K ] Your Answer: 16 17 18 Answer 19 20 21 -= Question 12 (1 point) 22 23 24 A 1,900 kg car is moving at 20 m/s. The driver brakes to a stop. The brakes cool off to the temperature of the surrounding air, which is nearly constant at 22 C. 25 What is the total entropy change? Take absolute zero to be at -273.C. [ Give your answer in J/K to the nearest 1 J/K ] Your