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ANTONII [103]
3 years ago
15

Please help on this one

Physics
1 answer:
mixas84 [53]3 years ago
6 0
Ep=mgh
h= Ep/mg
h=57÷(3.3×9.8)
h= 57÷32.34
h= 1.8m
So; the answer is B. 1.8m
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We are given the description of an enclosure that has fencing on 3 sides and can use 3,056 yards of fencing. We are to find the
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Answer:

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Since y represents the length of fence that is opposite (parallel) to the river and x represent the length of fence perpendicular to the river.

Therefore since we can use 3,056 yards of fencing

Side perpendicular to the river = x and,

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The area of the rectangle formed (A) = Perpendicular side × Parallel side

∴ A = x(3056 - 2x) = 3056x - 2x²

A = 3056x - 2x²

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∴ A' = 3056 - 4x = 0

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x = 764 yards

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Side perpendicular to the river = 764 yards and,

Side opposite to the river = 1528 yards

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For its first lap:

a_{c}_{1}=\frac{v_{i}^{2}}{R}

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a_{c}_{2}=\frac{16v_{i}^{2}}{R}

Comparing accelerations:

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