2 years ago

Which statements best describe displacement? Check all that apply.

Physics

2 answers:

xxMikexx [17]2 years ago

8 0

Answer:

the last one, the third one, and the first one.

Georgia [21]2 years ago

4 0

Answer:

Displacement is a measurement that includes direction, displacement is the difference between a starting point and an ending point, and displacement is measured as a straight line between a starting point and an ending point.

Explanation:

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Answer and Explanation:

Data provided in the question

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Extended by = 0.25mm = $0.25\times 10^{-3}$

Based on the above information, the calculation is as follows

a. The Stress of the wire is

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here area of circle = perpendicular to the are i.e cross-sectional i.e

= $\frac{\pi d^{2}}{4}$

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Now place these above values to the above formula

$= \frac{4\times 50}{\pi\times 4 \times 10^{-6}} \\\\ = \frac{50}{\pi}$

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As 1Pa = 1 by N m^2

So,

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b. Now the strain of the wire is

$= \frac{Change\ in\ length}{initial\ length} \\\\ = \frac{0.25\times 10^{-3}}{5}$

= $5 \times 10^{-5}$

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