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Mkey [24]
3 years ago
9

If a quadrilateral is a kite, then its diagonals are perpendicular. TRUE FALSE

Mathematics
1 answer:
Greeley [361]3 years ago
7 0
<span>If a quadrilateral is a kite, then its diagonals are perpendicular. it is true</span>
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Samantha's age is 3 years more than half her uncle's age. If her uncle's age is z years, which of the following expressions best
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2 years ago
A force of 12 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i
sattari [20]

Answer:

Work done in stretching the spring = 7.56 lb-ft.

Step-by-step explanation:

Normal length of the spring = 8 in or \frac{8}{12} ft

= \frac{2}{3} ft

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= \frac{11}{12} ft

Force applied to stretch the spring = 12 lb

By Hook's law,

F = kx [where k is the spring constant and x = length by which the spring is stretched]

12 = k(\frac{2}{3})

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Work done (W) to stretch the spring by \frac{11}{12} ft will be

W = \int\limits^\frac{11}{12} _0 {kx} \, dx

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3 years ago
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