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Glencoe Physics: Principles and Problems 2009 (Homework)

James Finch

Physics - High School, section 001, Fall 2019

Instructor: Dr. Friendly

Current Score : 11 / 11

Due : Sunday, August 18, 2019 18:00 EDT

Last Saved : n/a Saving...  ()

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Question
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11/11 (100.0%)

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    Here are some textbook questions from Glencoe Physics: Principles and Problems copyright 2009 published by Glencoe/McGraw-Hill. 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 wherever the problem has randomized values.

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1. –/2 points GPhys09 1.AC.054. My Notes
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Two students measure the speed of light. One obtains (3.001 0.001) ✕ 108 m/s. The other obtains (2.999 0.006) ✕ 108 m/s.
(a) Which is more precise?
    
(b) Which is more accurate?
    
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2. –/1 points GPhys09 1.MP.069. My Notes
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–/1
 
Rank the following mass measurements from greatest to least (use only the symbols > or =, for example b>a=c>d).
(No Response)
a) 10.8 mg
b) 1022 μg
c) 0.000 007 kg
d) 0.25 mg.
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3. –/1 points GPhys09 2.MC.037. My Notes
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–/1
 
The following quantities describe location or its change: position, distance, and displacement. Which are vectors?

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4. –/4 points GPhys09 3.MP.082. My Notes
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Refer to Figure 3-19 to find the acceleration of the moving object at each of the following times.

Figure 3-19
(a) during the first 5.0 s of travel
(No Response) m/s2

(b) between 5.0 s and 10.0 s
(No Response) m/s2

(c) between 10.0 s and 15.0 s
(No Response) m/s2

(d) between 20.0 s and 25.0 s
(No Response) m/s2
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5. –/3 points GPhys09 8.MR.089. My Notes
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–/3
 
A wooden door of mass m, and length l, is held horizontally by Dan and Ajit. Dan suddenly drops his end.
(a) What is the angular acceleration of the door just after Dan lets go? (Enter a symbolic equation. Use the following as necessary: l and g.)
α = (No Response)

(b) Is the acceleration constant?
    

Explain
(No Response)

This answer has not been graded yet.

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