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Ohanian and Markert - Physics for Eng and Sci 3/e (Homework)

Sarah Yates

W. W. Norton, section 1, Fall 2011

Instructor: Mr. Norton

Current Score : 0 / 16

Due : Thursday, December 15, 2011 08:00 PM EST

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Question
Points
1 2 3 4 5
0/8 0/2 0/2 0/2 0/2
Total
0/16

  • Description

    Here are some textbook questions from Physics for Engineers and Scientists 3/e by Hans C. Ohanian and John T. Markert published by W. W. Norton & Company. 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.

Assignment Submission

For this assignment, the number of submissions for each answer box is counted independently. The number of submissions remaining changes only if you submit a new or changed answer.

1. –/8 points Notes Question: OhanPSE3 3.P.028.
Question part
Points
Submissions
1 2 3 4 5 6 7 8
0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50 0/50 0/50 0/50 0/50
Total
0/8
 
Four vectors are given by the following.
= 2.1 + 4.1
= 0.8 + 4.5 + 2.5
= 1.5 + 2 + 3
= 3 + 1.5
(a) What is the vector = + + + ?
Enter a number.
 +
Enter a number.
 +
Enter a number.

(b) What is the vector = - + - ?
Enter a number.
 +
Enter a number.
 +
Enter a number.

(c) What is the magnitude of ?
Enter a number.

(d) What is the magnitude of ?
Enter a number.

Your work in question(s) will also be submitted or saved.
2. –/2 points Notes Question: OhanPSE3 6.P.028
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
Two masses, of 1.8 kg each, connected by a string slide down a ramp making an angle of 50° with the horizontal (see figure). The mass m1 has a coefficient of kinetic friction 0.60, and the mass m2 has a coefficient of kinetic friction equal to 0.40.
(a) Find the acceleration of the masses.
Enter a number.
 m/s2

(b) Find the tension in the string.
Enter a number.
 N

Your work in question(s) will also be submitted or saved.
3. –/2 points Notes Question: OhanPSE3 7.P.024.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
A 236-g mass is hung from a vertical spring, stretching it 17 cm from its old equilibrium to its new one.
(a) How much work was done by gravity?
Enter a number.
 J

(b) How much work was done by the spring?
Enter a number.
 J

Your work in question(s) will also be submitted or saved.
4. –/2 points Notes Question: OhanPSE3 22.P.038.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
Point charges +Q and -2Q are separated by a distance d. A point charge q is equidistant from these charges, at a distance x from their midpoint (see figure). What is the electric force on q?
x-component
Enter a mathematical expression.
Click here to preview your answer.
y-component
Enter a mathematical expression.
Click here to preview your answer.

Click here for help with symbolic formatting.
Your work in question(s) will also be submitted or saved.
5. –/2 points Notes Question: OhanPSE3 29.P.008.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
An electron is traveling with a velocity of 2.10 106 m/s at an angle of 120° to the direction of a 0.268-T magnetic field that points along the x axis (see figure). What is the force on the electron?
Magnitude
Enter a number.
 N
Direction
Your work in question(s) will also be submitted or saved.
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