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Hecht - Physics: Calculus (Homework)

James Finch

Physics - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 7 / 8

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

Last Saved : n/a Saving...  ()

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Question
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1 2 3 4 5
–/1 –/2 –/1 –/2 –/2
Total
7/8 (87.5%)

  • Instructions

    Here are some textbook questions from Physics: Calculus 2/e by Hecht published by Brooks/Cole. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and makes the answer key available after the first submission so you can see the correct answers. (Typically, the answer key is posted after the due date!)

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1. –/1 points HechtCal2 3.P.023 My Notes
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What is the instantaneous acceleration of the object whose motion is depicted in Fig. 3.2b at t = 4 s?
m/s2


Figure 3.2b.

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2. –/2 points HechtCal2 4.P.015. My Notes
Question Part
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1 2
–/1 –/1
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What is the net force acting on the ring in Fig. P15? Try to solve this one in an elegant way.
N (magnitude)
° counterclockwise from the x-axis (direction)

Figure P15
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3. –/1 points HechtCal2 4.P.073 My Notes
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Referring to Fig 4.21b, suppose m2 equals 2.00 kg and it's on a frictionless surface. If m1 = 11.0 kg, someone holds m2 at rest, what will be the tension in the string?
N


Figure 4.21b.

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4. –/2 points HechtCal2 4.P.113 My Notes
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0/50 0/50
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What are the tension forces acting on each of the weightless ropes in Fig. P113?
N (lower rope)
N (upper rope)


Figure P113.

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5. –/2 points HechtCal2 8.P.071 My Notes
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Compute the torque about the pivot O,generated by the 100-N force on the gearshift lever in Fig. P61.


Figure P61.


N · m
    
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