Physics 10153 - Homework #10
Due Tue Dec 1 / Wed Dec 2
Solve the following problems on your own paper. Please:
- Show all work.
- Put a box around your final answer to each problem.
- Be sure proper significant figures (SF) used for all answers.
- Separate all solutions with a horizontal line on your paper.
- A random selection of four even problems will be graded for 25 points each.
- Solutions for suggested odd problems can be seen by following links.
- Solutions for even problems will be linked from this page after the due date.
Chapter 10
- #4
- Use formula 10.2 to help with this one.
- #8
- Note equation 10.3. Answer with 3 SF.
- #10
- Set up two equations with two unknowns (the final temp and final diameter).
- #14
- Answer with 3 SF. Use equation 10.6.
- #20
- The answer for the last part (you don't have to write this) is: "Accordion-like expansion joints at periodic intervals along the pipe."
- #28
- Be sure to use the proper version of R here. Answer with 2 SF.
- #30
- Answer with an integer, just drop any fractions you might come up with at the end.
- #32
- Assume N (or n) is constant throughout this problem, so V and T are changing, and you must calculate the new V to find density. Answer with 2 SF.
- Suggested problems:
-
C1, C2,
C3,
C4,C5,C6,
C8,
C9,
C10,
C11,
C12,
C13,
C14,
#1,
#2,
#3,
#5,
#6,
#7,
#9,
#10,
#11,
#12,
#13,
#15,
#16,
#17,
#18,
#19,
#21,
#23,
#25,
#26,
#27,
#29,
#31,
#33,
#34,
#35
Chapter 11
- #4
- Find the change in temperate first. Answer with 3 SF.
- #6
- Assume the heat difference is equal to the change in gravitational potential energy.
- #10
- You don't need to answer part (b).
- #12
- Find the total mass of lead needed, then divide by the mass of a single pellet to get the number of pellets. Answer with 3 SF.
- #22
- See the discussion on pages 360-1 for guidance. Answer with 2 SF.
- #30
- Example 11.7 will help here.
- #32
- This is mainly about keeping your units straight. To save you some time, the surface area of the house is 307 square meters.
- #34
- Work in mks units on this problem!
- #40
- The power is just equal to the heat loss (mL) from the melting ice. Use equation 11.6.
- Suggested problems:
- C1, C2,
C3,
C4,
C5, C7,
C8,
C9,
C10,
C11, C12,
C13, C14,
#1,
#2,
#3,
#5,
#7,
#9,
#11,
#13,
#14,
#15,
#16,
#17,
#18,
#19,
#20,
#21,
#23,
#25,
#27,
#28,
#29,
#31,
#33,
#35,
#36,
#37,
#38,
#39,
#41,
#42,
#43,
#44,
#45,
#46,
#51,
#53,
#54