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irina1246 [14]
3 years ago
12

A tensile load of 6.9 kN is applied on a copper rod with diameter of 12 mm. (a) What is the maximum normal stress in the rod? (b

) What is the maximum shear stress in the rod?

Engineering
1 answer:
solniwko [45]3 years ago
8 0

Answer:

a) 61 MPa

b) 0 MPa

Explanation:

See it in the pic.

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Why is the contractor normally required to submit a bid bond when making a proposal to an owner on a competitively bid contract?
just olya [345]

Answer:

It serves as a guarantee that the contractor who wins the bid will honor the terms of the bid after the contract is signed.

Explanation:

A bid bond is a type of construction bond that protects the obligee in a  construction bidding process.

A bid bond typically involves three parties:

The obligee; the owner or developer of the construction project under bid. The principal; the bidder or proposed contractor.

The surety; the agency that issues the bid bond to the principal example insurance company or bank.

A bid bond generally serves as a guarantee that the contractor who wins the bid will honor the terms of the bid after the contract is signed.

3 0
3 years ago
A jetliner flying at an altitude of 10,000 m has a Mach number of 0.5. If the jetliner has to drop down to 1000 m but still main
andreev551 [17]

Answer

Assuming

At 10000 m height temperature T = -55 C = 218 K

At 1000 m height temperature T = 0 C  = 273 K

\dfrac{V_1}{C_1} =\dfrac{V_2}{C_2} = 0.5

R = 287 J/kg K

C_1 = \sqrt{\gamma RT_1} = \sqrt{1.4\times 287\times 218} = 295 m/s

C_2 = \sqrt{\gamma RT_2} = \sqrt{1.4\times 287\times 273} = 331 m/s

V_2 = \dfrac{V_1}{C_1}\timesC_2

V₂ = V₁ ×1.1222

V₁ = 0.5 × C₁ = 0.5 × 295 = 147.5 m/s

V₂ = 1.1222 ×  147.5 = 165.49 m/s

so, the jetliner need to increase speed by ( V₂ -V₁  )

= 165.49 - 147.5

= 17.5 m/s

6 0
4 years ago
What happens to resistance in the strain gage and voltage drop from a connected Wheatstone bridge if you were to pull the strain
snow_tiger [21]
The resistance and voltage drop will still increase but at a smaller rate than the intended axis such as the long axis.
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3 years ago
Steel balls 12 mm in diameter are annealed by heating to 1150 K and then slowly cooling to 400 K in an air environment for which
luda_lava [24]

Answer:

It will take the steel 425.925sec to cool from 1150k to 400k

Explanation:

Detailed explanation and calculation is shown in the image

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Answer:

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Explanation:

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