Physics 103 Assignments

Physics 103 Problems

Assignment 1: Due Tuesday, Sept. 13, beginning of class (absolute deadline: 5PM, Clapp 423):

Problems 2.3, 2.4, 2.5: do graphically, and also arithmetically
Problems 2.11, 2.12

Assignment 2: Due Tuesday, Sept. 20, beginning of class (absolute deadline: 5PM, Clapp 423):

Problems 2.13, 2.14, 2.15, 2.16 (all very short)
2.19, 2.20, 2.27, 2.31

The values in problem 2.31 of the sine, cosine, and tangent of certain special angles are very important to memorize (easy to do if you remember the special triangles). They frequently occur in MCAT-type problems.

Solutions 2

Assignment 3: Due Tuesday, Sept. 27, beginning of class (absolute deadline: 5PM, Clapp 423):

Problems 3.5, 3.11, 3.15, 3.18, 3.19
In Schaum's Easy Outline II, find problem 14.14 on p. 364. (a) Using it as a guide, work the problem algebraically, using f, o, and i in place of numbers, to find expressions for i and M, the magnification. Verify that your expressions are right by putting in numbers at the end.

(b) Suppose the focal length f and the object position o had been twice as much, i.e., f=-95.8 cm and o=60.2 cm. Now where is the image and what is the magnification? What is the easy way to do this problem, even easier than substituting these numbers into the expressions from (a)? [Hint: use proportionality]

Solutions 3

Assignment 4: Due Tuesday, Oct. 4, beginning of class (absolute deadline: 5PM, Clapp 423)

Problems 3.20, 3.21, 3.22, 3.24, 3.25, 3.26, 3.30, 3.32, 3.33
In Schaums Easy Outline II, find the worked problem 14.9 on p. 360, and do it algebraically. Check that the algebraic expressions are dimensionally correct. Verify that these expressions give the correct values when you substitute the numbers given in 14.9.
Replace f by -f in the problem just above, and check that the resulting expressions solve 14.10.

Solutions 4

Assignment 5: due Tuesday, Oct. 18

Problems 4.1, 4.2, 4.4, 4.6, 4.9, 4.12, 4.19, 4.23
In problem 4.9, use a log-log plot to estimate the power law that relates the speed of a moon to the radius of its orbit.

Solutions 5

Assignment 6: due Tuesday, Oct. 25

Problems 5.3, 5.5, 5.8, 5.12, 5.13, 5.15

In Schaum's Outlines: College Physics, re-work the worked problems

4.1, p. 48, in case the horizontal force is 60 N and not 30 N
5.3, p. 58, in case the 2 weights on the 100 N pipe are 200 N and 400 N, instead of 200 N and 500 N.

Solutions 6

Assignment 7: due Tuesday, Nov. 1