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Komok [63]
3 years ago
13

Which of the following is an example of positive potential energy with reference to the floor? PLS HELP

Physics
1 answer:
frutty [35]3 years ago
5 0

Answer:

A

Explanation:

potential energy is usually at rest at the highest point in comparason to the ground

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A rectangular field is to be enclosed on four sides with a fence. Fencing costs $2 per foot for two opposite sides, and $3 per f
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<h2>Dimension for cheap enclose = 32.45 ft x 23.52 ft</h2>

Explanation:

Area of rectangular field, A = 830 ft²

Length = l

Width = w

So we have

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           dC=4\times dw-6\times \frac{830}{w^2}\times dw\\\\0=4\times dw-6\times \frac{830}{w^2}\times dw\\\\w^2=1245\\\\w=32.45ft\\\\lw=830\\\\l\times 32.45=830\\\\l=23.52ft

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