3 years ago

_____ colleges have admission policies that vary from less selective to highly selective

SAT

2 answers:

german3 years ago

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B four year college s that what i think

Murljashka [212]3 years ago

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Answer: four year colleges

Explanation: apex

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A force of 5000n is applied outwardly to each end of a 5. 0-m long rod with a radius of 34. 0 cm and a young's modulus of 125 ×

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<h3>Young Modulus of a substance</h3>

The young modulus of a substance is the<u> ratio of stress to the strain</u> of material.

$Modulus = \frac{Stress}{Strain}\\ Modulus =\frac{Fl}{Ae}$

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F is the applied force = 5000N
l is the length of the rod = 5.0m

A is the cross-sectional area = $\pi r^2 = 0.34^2 * 3.14 =0.362984m^2$

Required

Extension of the rod "e"

Substitute the given parameters into the formula to have;

$e=\frac{Fl}{A \gamma} \\e=\frac{5000 \times 5}{0.362984 \times 125,00,000}\\e=\frac{25000}{45,373,000}\\e= 5.51 \times 10^{-4}m$

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