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artcher [175]
2 years ago
15

A hammer can be used to see how a mineral breaks. If you observe square chunks of the mineral when broken, what can you conclude

? (1 point)
Engineering
1 answer:
jeyben [28]2 years ago
6 0

Answer:

it can not break that easily

Explanation:

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Select the correct answer. Which existing technology did engineers use to enhance the speed of propeller-driven airplanes
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metallurgy:

Explanation:

7 0
2 years ago
Estimate the endurance strength, Se, of a 37.5-mm- diameter rod of AISI 1040 steel having a machined finish and heat-treated to
7nadin3 [17]

Answer:

endurance length is 236.64 MPa

Explanation:

data given:

d = 37.5 mm

Sut = 760MPa

endurance limit is

Se = 0.5 Sut

   = 0.5*760 = 380 MPa

surface factor is

Ka = a*Sut^b

where

Sut is ultimate strength

for AISI 1040 STEEL

a = 4.51, b = -0.265

Ka = 4.51*380^{-0.265}

Ka = 0.93

size factor is given as

Kb =1.29 d^{-0.17}

Kb = 0.669

Se = Sut *Ka*Kb

    = 380*0.669*0.93

Se = 236.64 MPa

therefore endurance length is 236.64 MPa

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What is the formula used to find the volume of this shape
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Volume=Hh(b1+b2)/2. b1 and b2 are the base of the trapezoid
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