Note: This is an old page from Fall 2008, which will no longer be updated. It was for PHY2048: University Physics at Daytona State College in Fall 2008 with Prof. Gajendra Tulsian.
9:15 P.M. EST 2008-11-15:
Sorry this is late. The test is Monday 2008-11-17, keep studying these problems: 10.3, 7, 11, 20, 33, 39, 43; 11.3, 14, 23, 33, 41, 44, 46; 12.5, 15, 26, 30, 36, 44, 48, 55.
Problem 3 on the practice test is the hardest. #5 and #6 assume you know Kepler’s 3rd law, the mass and radius of the earth, G, and the black hole formula. I showed them in the solutions above. Dr. Tulsian should write those on the board during the test, if he picks my problems.
#4 is tricky. Remember the quadratic formula. You can also factor it as (x+1L)(x-3L), and then find that x can equal -1L or 3L. Only the positive answer counts, so the answer is 3L.
Remember that radius is half the diameter.
Download the 2008-09-24 University Physics review (PDF, 500KB, 4 scanned pages). This is for Dr. Gajendra Tulsian’s class (PHY2048), but you can use it for others. Problems covered: 5.24, 5.51, exam 1.3 (train problem), review of tensors, scalars, vectors.