Nitrogen is compressed to a density of 4 kg/m3 under an absolute pressure of 400KPa. Find the temperature in C. O 83.14 .C O 51.62 C O 62.71 .C O 63.76 C. You propose to climb several flights of stairs to work off the energy you took in by eating a 900- calorie hot fudge sundae. How high must you climb? Assume that your mass is 60.0 kg. Note food calorie=1kcal. O 8423 m O 6410 m O 1572 m O 4151 mA 3g bullet (c=128 J/kg .C) moving at 180 m/s enters a bag of sand at 35C and stops. What is the final temperature of the bullet if all its kinetic energy become thermal energy that is added to the bullet? O 161.56 C O 532.52 C O 182.13 C O 115.16 .C. Energy is added to a piston-cylinder arrangement and the piston is withdrawn in such a way that the quantity PV remains constant. The initial pressure and volume are 200 KPa and 2m respectively. If the final pressure is 100 KPa, calculate the work done by the gas in the piston. O 277.26 J 521.51 J O 521.51 KJ O 277.26 KJA piston cylinder device initially contains 0.8 m3 of air at l 10 psi and 80C. The air is now compressed to 0.2 m3 in such a way that the temperature inside the cylinder remains constant. Determine the work done during this process. 0 -44 Id 0 -122 id 0 -321 RJ 0 -841 kJ