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Vladimir [108]
3 years ago
7

(ii) Explain how sound energy is transferred through the wall without transferring matter​

Physics
1 answer:
LuckyWell [14K]3 years ago
4 0

Answer:

In much the same way, a mechanical wave can carry energy through a medium without moving matter through the medium. ... Because the particles in a solid are tightly packed together, sound waves can quickly transfer energy from particle to particle in a solid.

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To appreciate the strength of gravity, calculate the number of steel cables that would be required, in the absence of gravity, t
Serga [27]

Answer:

N=5.36*10^{17}

Explanation:

From the question we are told that:

Tensile strength of steel \sigma_c=370 MPa.=370*10^6

Cross-sectional area A= 1m^2

Generally the equation for Total Force is mathematically given by

 F = \frac{G M m}{r^2}

 F=\frac{6.67*10^{-11}*7.35*10^{22}*5.97*10^{24}}{(384*10^3)^2}

Since this is the force of each cable

 F=\sigma_c NA

 F= 370*10^6*N*1

Therefore

 370*10^6*N*1=\frac{6.67*10^{-11}*7.35*10^{22}*5.97*10^{24}}{(384*10^3)^2}

 N=5.36*10^{17}

4 0
3 years ago
a bee flies 25m north of the hive, then 10m east, 5m west and 10m south. how far north and east of the hive is it now?
krok68 [10]
(25m north) + (10m south) = 15m north

(10m east) + (5m west) = 5m east

So the bee is now 15m north and 5m east of the hive.
7 0
4 years ago
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Lithium has 3 protons. how many neutrons are in the isotope lithium -8
Oksi-84 [34.3K]

Answer:

5 neutrons

Explanation:

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If lithium has 3 protons, lithium-8 has 8 - 3 = 5 neutrons.

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What is common to all fossil fuels?
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All fossil fuels are formed deep underground. they are all nonrenewable energy
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The question is not complete

4 0
3 years ago
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