Homework #1 Solutions
13.FoC3) Two identical bars are conducting heat from a region of higher temperature to one of lower temperature.
In arrangement A, the bars conduct 80 J of heat in a certain amount of time. How much heat is
conducted in B
Homework #2 Solutions
16.4) Tsunamis are fast-moving waves often generated by underwater earthquakes. In the deep ocean their
amplitude is barely noticable, but upon reaching shore, they can rise up to the astonishing height of
a six-story bui
Homework #4 Solutions
18.FoC 8) Three point charges have equal magnitudes and are located on the same line. The separation d between
A and B is the same as that between B and C. One of the charges is positive and two are negative, as
Homework #3 Solutions
17.29) On a cello, the string with the largest linear density (1.31 102 kg/m) is the C string. This string
produces a fundamental frequency of 70.2 Hz and has a length of 0.866 m between the two xed ends.
Find the tension
Homework #5 Solutions
18.FoC13) The drawing shows a positive and a negative point charge. The negative charge has the greater magnitude. Where on the line that passes through the charges is the one spot where the total electric eld
Homework #6 Solutions
19.FoC6) The drawing shows three arrangements of charged particles, all the same distance from the origin.
Rank the arrangements, largest to smallest, according to the total electric potential V at the origin.
Homework #8 Solutions
20.62) A 49.8 resistor is connected in parallel with a 170.0 resistor. This parallel group is connected in
series with a 21.5 resistor. The total combination is connected across a 11.9 V battery. Find
(a) the current and
Homework #10 Solutions
22.FoC7) The drawing shows three at coils, one square and two rectangular, each being pushed into a region
where there is a uniform magnetic eld directed into the screen. Outside of this region the magnetic
eld is zero.
Homework #10 Solutions
21.FoC14) A square current-carrying loop is placed in a uniform magnetic eld B, with the plane of the loop
perpendicular to the direction of the eld. The dashed line is the axis of rotation. The magnetic eld
exerts no ne
Homework #7 Solutions
20FoC.12) In the following three arrangements each resistor has the same resistance R. Rank the equivalent
resistances of the arrangements in descending order (largest rst). If we, for ease, assign a value of 1
Homework #9 Solutions
21.FoC1) The drawings show three situations in which a positively charged particle is moving through a uniform
magnetic eld B with a velocity v. For each situation, what is the direction of the magnetic force F