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1.
10/21/15, 7:44 PM
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Question Details
OSColPhys1 7.P.001.Tutorial.WA. [2611961]

As shown in the figure below, a box of mass m = 56.0 kg (initially at rest) is pushed a distance d = 50.
Solution
s Chapter 2
2.1
We assume that you are approximately 2 m tall and that the nerve impulse travels at uniform
speed. The elapsed time is then
t =
2.4
(a)
v=
x
2m
=
= 2 10 2 s = 0.02 s
v
100 m s
1 yr
x
20 ft 1 m
7
=
= 2 10 m s
t
1 yr 3.281 ft 3.15
Solutions Chapter 1
1.1
Substituting dimensions into the given equation
[T]
Thus, the
1.4
=
[ l]
T = 2 l g
, recognizing that 2 is a dimensionless constant, we have
or
L
=
L T2
T=
[ g]
T2 = T
dimensions are consistent .
In the equation
1
2
mv 2 =
1
2
,
2
Exam Name_
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Chapter 1 1.14. With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. You use a micrometer caliper to measure the width of the rectangle and obtain the value 5.89 mm. Give the answers to the following questions