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diamong [38]
3 years ago
5

In addition to possibly releasing harmful chemicals in the environment, mining is considered

Physics
1 answer:
ddd [48]3 years ago
4 0
In addition to possibly releasing harmful chemicals in the environment, mining is considered B. The most dangerous job in the United States.
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high to low

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8 0
2 years ago
A rod has a radius of 10 mm is subjected to an axial load of 15 N such that the axial strain in the rod is ????௫ = 2.75*10-6, de
EleoNora [17]

Answer:

Knowing we only have one load applied in just one direction we have to use the Hooke's law for one dimension

ex = бx/E

бx = Fx/A = Fx/πr^{2}

Using both equation and solving for the modulus of elasticity E

E = бx/ex = Fx / πr^{2}ex

E = \frac{15}{pi (10 * 10^{-3})^{2} * 2.75 * 10^{-6}    } = 17.368 * 10^{9} Pa = 17.4 GPa

Apply the Hooke's law for either y or z direction (circle will change in every direction) we can find the change in radius

ey = \frac{1}{E} (бy - v (бx + бz)) = -\frac{v}{E}бx

= \frac{vFx}{Epir^{2} } = \frac{0.23 * 15}{pi (10 * 10^{-3)^{2} } * 17.362 * 10^{9}  } = -0.63 *10^{-6}

Finally

ey = Δr / r

Δr = ey * r = 10 * -0.63* 10^{-6} mm = -6.3 * 10^{-6} mm

Δd = 2Δr = -12.6 * 10^{-6} mm

Explanation:

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3 years ago
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Oksana_A [137]
Velocity and direction
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3 years ago
Which produces more energy? Nuclear fission or nuclear fission?
erastovalidia [21]

Answer:

Nuclear fission

Explanation:

your so very welcome

4 0
2 years ago
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