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James Finch

Physics - High School, section 001, Fall 2019

Instructor: Dr. Friendly

Current Score : 16 / 22

Due : Sunday, September 1, 2019 19:00 EDT

Last Saved : n/a Saving...  ()

Question
Points
1 2 3 4 5
Total
16/22 (72.7%)
  • Instructions

    Here are some textbook questions from Holt Physics 2006 copyright by Serway and Faughn published by Holt, Rinehart and Winston. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. /4 points HoltPhys06 2.P.009. My Notes
Question Part
Points
Submissions Used
1 2 3 4
0/50 0/50 0/50 0/50
Total
/4
 
Two cars are traveling on a desert road, as shown below. After 5.0 s, they are side by side at the next telephone pole. The distance between the poles is 58.5 m.

(a) the displacement of car A after 5.0 s
(No Response) seenKey

58.5

m
(b) the displacement of car B after 5.0 s
(No Response) seenKey

117

m
(c) the average velocity of car A during 5.0 s
(No Response) seenKey

11.7

m/s
(d) the average velocity of car B during 5.0 s
(No Response) seenKey

23.4

m/s
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2. /2 points HoltPhys06 3.P.026. My Notes
Question Part
Points
Submissions Used
1 2
0/50 0/50
Total
/2
 
A person walks the path shown below. The total trip consists of four straight-line paths.
Path 1 is 30.0 m due east.
Path 2 is 270.0 m due south.
Path 3 is 120.0 m 30.0° south of west.
Path 4 is 190.0 m 60.0° north of west.
At the end of the walk, what is the person's resultant displacement?
(No Response) seenKey

236

m at (No Response) seenKey

44.4

° south of west.

[Figure not drawn to scale]
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3. /2 points HoltPhys06 4.P.010. My Notes
Question Part
Points
Submissions Used
1 2
0/50 0/50
Total
/2
 
Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5200 N, F2 = 1500 N, F3 = 900 N, and F4 = 3750 N.
(No Response) seenKey

1570

N at (No Response) seenKey

67.5

° clockwise from F2
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4. /9 points HoltPhys06 5.P.023. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6 7 8 9
0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50
Total
/9
 
A 56 kg skier is at the top of a slope, as shown in the illustration below. At the initial point A, the skier is h = 8.4 m vertically above the final point B.
(a) Set the zero level for gravitational potential energy at B, and find the gravitational potential energy associated with the skier at A and B. Then find the difference in potential energy between these two points.
PEA = (No Response) seenKey

4610

J
PEB = (No Response) seenKey

0

J
difference in PE = (No Response) seenKey

4610

J

(b) Repeat this problem with the zero level at A.
PEA = (No Response) seenKey

0

J
PEB = (No Response) seenKey

-4610

J
difference in PE = (No Response) seenKey

4610

J

(c) Repeat this problem with the zero level midway down the slope, at a height of 4.2 m.
PEA = (No Response) seenKey

2310

J
PEB = (No Response) seenKey

-2310

J
difference in PE = (No Response) seenKey

4610

J
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5. /5 points HoltPhys06 18.P.043. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
0/50 0/50 0/50 0/50 0/50
Total
/5
 
Four resistors are connected to a battery with a terminal voltage of 12.0 V, as shown below, with R1 = 65 , R2 = 76 , and R3 = 24 .

(a) Determine the equivalent resistance for the circuit.
(No Response) seenKey

66.2


(b) Determine the current in the battery.
(No Response) seenKey

0.181

A
(c) Determine the current in the 30.0 capital omega resistor
(No Response) seenKey

0.0805

A
(d) Determine the power dissipated by R1
(No Response) seenKey

0.422

W
(e) Determine the power dissipated by R3
(No Response) seenKey

0.788

W
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