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Question: SCalcCC2 6.5.04.
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Question: SCalcCC2 6.5.06.
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Question: SCalcCC2 6.5.14.
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Points
1234 56
333
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2
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11/17
Description
Applications to Physics and Engineering
The due date for this assignment is past.
Your work can be viewed below, but no changes
can be made.
A spring has a natural length of 20 cm. If a
25
N force is required to keep it stretched to a
length of 30 cm, how much work is required to stretch it from 20 cm to 25 cm?
.3125
0.312
J
If 6 J of work are needed to stretch a spring from 10 cm to 12 cm and another 10 J are
needed to stretch it from 12 cm to 14 cm, what is the natural length of the spring?
8
8
cm
The tank shown is full of water. Given that water weighs 62.5 lb/ft
3
, find the work required to
pump the water out of the tank.
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 Spring '08
 Mccollum
 Center Of Mass, Force, Mass, Orders of magnitude, Tank

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