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Serway and Beichner - Physics for S&E 5/e (Homework)

James Finch

Physics - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 5 / 9

Due : Monday, January 28, 2030 00:00 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5
1/1 2/3 –/2 1/1 1/2
Total
5/9 (55.6%)

  • Instructions

    Here are some textbook questions from Physics Scientists and Engineers 5/e by Serway and Beichner published by Brooks/Cole Publishing. 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.

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1. 1/1 points  |  Previous Answers SB5 1.P.61. My Notes
Question Part
Points
Submissions Used
1
1/1
2/50
Total
1/1
 
A high fountain of water is located at the center of a circular pool as in Figure P1.61. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 26.0 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angle of elevation of the top of the fountain to be 55.0°. How high is the fountain?
Correct: Your answer is correct. m


Figure P1.61.

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2. 2/3 points  |  Previous Answers SB5 2.P.14. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 0/1
1/50 5/50 2/50
Total
2/3
 
A particle starts from rest and accelerates as shown in Figure P2.14.


Figure P2.14


(a) Determine the particle's speed at t = 10 s.
Correct: Your answer is correct. m/s
What is the speed at t = 20 s?
Correct: Your answer is correct. m/s
(b) Find the distance traveled in the first 20 s.
Incorrect: Your answer is incorrect. m
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3. –/2 points SB5 3.P.21. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
Total
–/2
 
A person walks 20.0° north of east for 3.15 km. How far would she have to walk due north and due east to arrive at the same location?
km (due north)
km (due east)
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4. 1/1 points  |  Previous Answers SB5 4.P.20. My Notes
Question Part
Points
Submissions Used
1
1/1
1/50
Total
1/1
 
A firefighter, 35.0 m away from a burning building, directs a stream of water from a fire hose at an angle of 30.0° above the horizontal, as in figure P4.20. If the speed of the stream is 45.0 m/s, at what height will the stream of water strike the building?
Correct: Your answer is correct. m


Figure P4.20.

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5. 1/2 points  |  Previous Answers SB5 5.P.53. My Notes
Question Part
Points
Submissions Used
1 2
1/1 –/1
1/50 0/50
Total
1/2
 
A block of mass 1.00 kg is pushed up against a wall by a force P that makes a 50.0° angle with the horizontal as shown in Figure P5.53. The coefficient of static friction between the block and the wall is 0.216. Determine the possible values for the magnitude of P that allow the block to remain stationary.
Correct: Your answer is correct. N (maximum)
N (minimum)


Figure P5.53

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