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Hewitt - Conceptual Physics 9/e (Homework)

James Finch

Physics - College, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score: 12/13

Due: Sunday, October 24, 2010 21:00 EDT

About this Assignment

Question
Points
1 2 3 4 5
0/1 1 2 2 7
Total
12/13

Description

Here are some textbook questions from Conceptual Physics 9/e by Paul Hewitt published by Addison Wesley. Click here for a list of all of the questions coded in WebAssign.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. 0/1 points All Submissions Notes Question: Hewitt9 1.E.001.
Question part
Points
Submissions
1
0/1
5/50
Total
0/1
 
Which of the following are scientific hypotheses?

Your answer is incorrect.




2. 1/1 points All Submissions Notes Question: Hewitt9 2.E.022.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
The sketch shows a painting staging in mechanical equilibrium. The person in the middle weighs 220 N, and the tensions in each rope are 200 N. What is the weight of the staging?
Enter a number.
Your answer is correct. N



3. 2/2 points All Submissions Notes Question: Hewitt9 3.E.036.
Question part
Points
Submissions
1 2
1 1
1/50 1/50
Total
2/2
 
Refer to the pair of tracks in the figure below.

(a) On which track is the average speed greater?
    

Your answer is correct.



(b) Why is the speed of the ball at the end of the tracks the same?


4. 2/2 points All Submissions Notes Question: Hewitt9 4.E.025.
Question part
Points
Submissions
1 2
1 1
1/50 1/50
Total
2/2
 
Three identical blocks are pulled as shown on a horizontal frictionless surface. If tension in the rope held by the hand is T = 30 N, what is the tension in the other ropes?

between blocks 1 and 2
Enter a number.
Your answer is correct. N
between blocks 2 and 3
Enter a number.
Your answer is correct. N

5. 7/7 points All Submissions Notes Question: Hewitt9 5.E.027.
Question part
Points
Submissions
1 2 3 4 5 6 7
1 1 1 1 1 1 1
1/50 1/50 1/50 1/50 1/50 1/50 1/50
Total
7/7
 
Which of the following are scalar quantities, which are vector quantities, and which are neither?
(a) velocity Your answer is correct.
(b) age Your answer is correct.
(c) color Your answer is correct.
(d) speed Your answer is correct.
(e) acceleration Your answer is correct.
(f) shape Your answer is correct.
(g) temperature Your answer is correct.
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