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Vera_Pavlovna [14]
3 years ago
10

How many times can energy be transformed?

Physics
2 answers:
kykrilka [37]3 years ago
7 0
Only once hope this helps
IceJOKER [234]3 years ago
6 0
It can be transformed more than three times.
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Find the elongation produced in a copper wire of length 2m and radius 5mm, when suspended by a block
igomit [66]

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0.104 m

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Stress, \sigma=\frac {F}{A}

Where F is force and A is area. Also, F=mg where m is mass and g is acceleration due to gravity

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Strain=\frac {\triangle l}{l} where \triangle l is the elongation and l is the original length

E=\frac {stress}{strain}=\frac {\frac {F}{A}}{\frac {\triangle l}{l}}=\frac {Fl}{A\triangle l}

Making \triangle l the subject then

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3 0
3 years ago
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