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nordsb [41]
2 years ago
15

A 12-ft circular steel rod with a diameter of 1.5-in is in tension due to a pulling force of 70-lb. Calculate the stress in the

rod
Engineering
1 answer:
padilas [110]2 years ago
5 0

Answer:

The stress in the rod is 39.11 psi.

Explanation:

The stress due to a pulling force is obtained dividing the pulling force by the the area of the cross section of the rod. The respective area for a cylinder is:

A=\pi*D^2/4

Replacing the diameter the area results:

A= 17.76 in^2

Therefore the the stress results:

σ = 70/17.76 lb/in^2 = 39.11 lb/in^2= 39.11 psi

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Answer:

Explanation:

Given

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Velocity in terms of Displacement is given by

v=\frac{\mathrm{d} s}{\mathrm{d} t}

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When car has traveled \frac{3}{4} th of distance i.e.

s=\frac{3}{4}\times (2\pi r)=\frac{3\pi r}{2}

s=750\pi

750\pi =\frac{0.002t^3}{3}+4t

\Rightarrow \frac{0.002t^3}{3}+4t-2356.5=0

on solving we get t=139.23\ s

Thus velocity at t=139.23\ s

v=42.76\ s

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a_n=3.658\ m/s^2

Tangential acceleration a_t at t=139.23\ s

a_t=0.556\ m/s^2

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a_n=3.7\ m/s^2

   

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A BOD test is to be run on a sample of wastewater that has a five-day BOD of 230 mg/L. If the initial DO of a mix of distilled w
Alexxandr [17]

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230 = [8 - 2] D.F

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BCC lithium has a lattice parameter of 3.5089 3 10–8 cm and contains one vacancy per 200 unit cells. Calculate (a) the number of
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(a) The number of vacancies per cubic centimeter is 1.157 X 10²⁰

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<u>Explanation:</u>

<u />

Given-

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Therefore, the number of vacancies per cubic centimeter is 1.157 X 10²⁰

(b)

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Elenna [48]

Answer: The energy system related to your question is missing attached below is the energy system.

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Insert values into equation 2 above

W = 6.88 Kw

5 0
2 years ago
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