Question 1 1 pts A rod has a length 0.308m at 20 C. The length of the rod increases to 0.411 when the temperature increases to 62.9 C. Determine the coefficient of linear expansion of the material (in ' C-1). Question 2 1 pts A block of ice, 137.6g is initially at 0C. The ice is heated until it has turned to water at a temperature of 46.1C. The specific heat of water is 41864 KgC . The latent heat of fussion for water is Ly = 334. How much heat has been added to the ice (in k.J)? (Assume ideal conditions and no heat loss). Question 3 1 pts A system consists of two very large thermal reservoirs in contact with each other, one at temperature 454" C and the other at temperature -72 C. Determine the change in entropy of the system when 49.6KJ of heat is transferred from the 4540 reservoir to the -720 reservoir (in ).L.J kJ Question 4 1 pts A mass 7569 is attached to an ideal spring. Once set in motion the mass-spring system is a harmonic oscillator. This mass spring system has a total mechanical energy of 282.]. If the oscillation amplitude is 5.8990731, what is the maximum speed of the mass (in $l? Question 5 1 pts A projectile is red at an angle above the horizontal. The initial :8 and y components of its velocity are ox 265.5% and vy 294.8% respectively. At what angle was the projectile red above the horizontal (in deg}? D Question 6 1 pts The figure shows the directions of four vectors, A, B , C, and D, having magnitudes 15m, 20m, 5m, and 11m, respectively. Vector E is the sum of these four vectors, E=A+B+C+D. What is the angle of Vector E with respect to the positive x axis? 30 30 X D Question 7 1 pts A train starts from rest and accelerates uniformly until it has traveled 9.5km and acquired a forward velocity of 31.4m . The train then moves at a constant velocity of 31.4m for 1.98min. The train then slows down uniformly at 0.002 -2, until it is brought to a halt. How long does the entire process take (in min)?Question 8 1 pts A 6369 mass has an initial velocity of 1),; =28? at 3:!- =647m. |t accelerates for a time of 953 with an acceleration of 2%. Determine how fast it is going at this time. (in %) Question 9 1 pts A projectile is red from the edge ofa cliff as shown in the gure at an angle of 306 above the horizontal. The cliff is 20m high. The initial velocity is 56.1%. The projectile reaches maximum height at point P and then falls and strikes the ground at point Q How long is the projectile in the air (in s l? Neglect air resistance and use g : 93.17\" as the magnitude of the acceleration due to gravity. 32 I) 1-.- 'J in