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Bauer and Westfall - University Physics 1/e (Homework)

James Finch

Physics - College, section 1, Fall 2011

Instructor: Dr. Friendly

Current Score : 3 / 12

Due : Friday, August 19, 2011 20:00 EDT

Print Assignment
Question
Points
1 2 3 4 5 6
3 0/1 0/1 0/4 0/1 0/2
Total
3/12 (25.0%)

  • Description

    Here are some textbook questions from University Physics 1/e by Wolfgang Bauer and Gary Westfall published by McGraw-Hill. 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 wherever the problem has randomized values.

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. 3/3 points All Submissions Notes Question: BauerPhys1 1.P.059.
Question part
Points
Submissions
1 2 3
1 1 1
1/50 1/50 2/50
Total
3/3
 
Write the vectors
A, B, and C
 in Cartesian coordinates.

Aarrowbold = Your answer is correct.
Barrowbold = Your answer is correct.
Carrowbold = Your answer is correct.


Section
Your work in question(s) will also be submitted or saved.
2. –/1 points Notes Question: BauerPhys1 1.P.062.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Determine the difference vector
E = B − A
 graphically. (Express your answer in Cartesian coordinates.)
E =


Section
Your work in question(s) will also be submitted or saved.
3. –/1 points Notes Question: BauerPhys1 3.P.094.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
A plane diving with constant speed at an angle of 52° with the vertical, releases a package at an altitude of 675 m. The package hits the ground 3.5 s after release. How far horizontally does the package travel?
Enter a number.
 m

Section
Your work in question(s) will also be submitted or saved.
4. –/4 points Notes Question: BauerPhys1 4.P.028.
Question part
Points
Submissions
1 2 3 4
0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50
Total
0/4
 
Two blocks are in contact on a frictionless, horizontal tabletop. An external force,
F,
 is applied to block 1, and the two blocks are moving with a constant acceleration of 2.50 m/s2. Use M1 = 3.30 kg and M2 = 5.65 kg.
(a) What is the magnitude, F, of the applied force?
Enter a number.
 N

(b) What is the contact force between the blocks?
Enter a number.
 N

(c) What is the net force acting on block 1?
magnitude
Enter a number.
 N
direction


Section
Your work in question(s) will also be submitted or saved.
5. –/1 points Notes Question: BauerPhys1 4.P.031.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Four weights, of masses m1 = 6.78 kg, m2 = 4.01 kg, m3 = 11.98 kg, and m4 = 5.54 kg, are hanging from the ceiling as shown in the figure. They are connected with ropes. What is the tension in the rope connecting masses m1 and m2?
Enter a number.
 N


Section
Your work in question(s) will also be submitted or saved.
6. –/2 points Notes Question: BauerPhys1 4.P.063.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
As shown in the figure, blocks of masses m1 = 680.0 g and m2 = 450.0 g are attached by a massless string over a frictionless and massless pulley. The coefficients of static and kinetic friction between the block and inclined plane are 0.245 and 0.112, respectively. The angle of the incline is θ = 30.0°, and the blocks are at rest initially.
(a) In which direction do the blocks move?
    

(b) What is the magnitude of the acceleration of the blocks?
Enter an exact number.
 m/s2


Section
Your work in question(s) will also be submitted or saved.
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