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jekas [21]
3 years ago
15

In which type of material will sound generally travel the fastest?

Physics
2 answers:
bixtya [17]3 years ago
8 0
The speed of sound is not constant in all materials. speed of sound is determined by elasticity,density, and temperature. S<span>ound  does travel faster in solids than in water and air. 
Vaccum is an empty space through which sound cannot travel through. This is because sound is basically vibrating properties and in a vacuum there are no properties.</span>


Alexxx [7]3 years ago
7 0
 -speed of sound is not constant in all materials. speed of sound is determined by elasticity,density, and temperature. Sound defiantly travels faster in solids than in water and air.-Vaccum is an empty space and sound cannot travel through it. This is cuz sound is basically vibrating properties and in a vacuum there has  no properties.
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Which of the following would most likely happen if water did not form hydrogen bonds?
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Option C is the correct answer
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4 years ago
If the moment acting on the cross section is M=630N⋅m, determine the maximum bending stress in the beam. Express your answer to
-BARSIC- [3]

Answer:

2.17 Mpa

Explanation:

The location of neutral axis from the top will be

\bar y=\frac {(240\times 25)\times \frac {25}{2}+2\times (20\times 150)\times (25+(\frac {150}{2}))}{(240\times 25)+2\times (20\times 150)}=56.25 mm

Moment of inertia from neutral axis will be given by \frac {bd^{3}}{12}+ ay^{2}

Therefore, moment of inertia will be

\frac {240\times 25^{3}}{12}+(240\times 25)\times (56.25-25/2)^{2}+2\times [\frac {20\times 150^{3}}{12}+(20\times 150)\times ((25+150/2)-56.25)^{2}]=34.5313\times 10^{6} mm^{4}}

Bending stress at top= \frac {630\times 10^{3}\times (175-56.25)}{34.5313\times 10^{6}}=2.1665127\approx 2.17 Mpa

Bending stress at bottom=\frac {630\times 10^{3}\times 56.25}{34.5313\times 10^{6}}=1.026242858\approx 1.03 Mpa

Comparing the two stresses, the maximum stress occurs at the bottom and is 2.17 Mpa

8 0
4 years ago
Two identical cylindrical vessels with their bases at the same level each contain a liquid of density 1.23 g/cm3. The area of ea
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Explanation:

Work done by gravity is given by the formula,

           W = \rho A (h_{1} - h)g (h - h_{2}) ......... (1)

It is known that when levels are same then height of the liquid is as follows.

           h = \frac{h_{1} + h_{2}}{2} ......... (2)

Putting value of equation (2) in equation (1) the overall formula will be as follows.

       W = \frac{1}{4} \rho gA(h_{1} - h_{2})^{2})

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           = 0.689 J

Thus, we can conclude that the work done by the gravitational force in equalizing the levels when the two vessels are connected is 0.689 J.

3 0
4 years ago
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Answer:

Hire, organize, and supply workers.

Explanation:

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Explanation:

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