2 years ago

Explain why a running cheetah has kinetic energy.

Physics

2 answers:

UkoKoshka [18]2 years ago

7 0

The answer to your question, It’s an energy in motion

professor190 [17]2 years ago

5 0

Answer: kinetic energy is energy in motion

Explanation:

I got it right on my energy test

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The path a star takes during its lifetime depends on

Svetlanka [38]

Answer:

c.) Mass (is the answer)

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3 years ago

If an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 millimeters in front o

Svetach [21]

C.
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2 years ago

The image messed up but you get the point. Don't be mean and just answer to get the points, please and thank you.

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Answer:

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Explanation:

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3 years ago

The maximum stress in a section of a circular tube subject to a torque is τmax = 27 MPa . If the inner diameter is Di = 3.75 cm

DIA [1.3K]

Answer:

$T_{max} = 4.735\,kN\cdot m$

Explanation:

The shear stress due to torque can be calculed by using the following model:

$\tau_{max} = \frac{T_{max}\cdot r_{ext}}{J_{tube}}$

The maximum torque on the section is:

$T_{max} = \frac{\tau_{max}\cdot J_{tube}}{r_{ext}}$

The Torsion Constant for the circular tube is:

$J_{tube} = \frac{\pi}{32}\cdot (D_{ext}^{4}-D_{int}^{4})$

$J_{tube} = \frac{\pi}{4}\cdot [(0.053\,m)^{4}-(0.038\,m)^{4}]$

$J_{tube} = 4.560\times 10^{-6}\,m^{4}$

Now, the require output is computed:

$T_{max} = \frac{(27\times 10^{3}\,kPa)\cdot (4.560\times 10^{-6}\,m^{4})}{0.026\,m}$

$T_{max} = 4.735\,kN\cdot m$

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2 years ago

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2 years ago

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