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Amanda [17]
3 years ago
13

What happens when the density of a medium increases

Physics
2 answers:
Anvisha [2.4K]3 years ago
8 0
We all know that the sound travels faster through solids and then liquids and then through gases.
As far as i know solids are the medium through which the sound travels fast.

But in some websites I saw that as the density increases , the velocity of the sound decreases.If this statement is correct , how come the sound travels fastest through solids (since they have higher density) 

From this it is clear that not only sound as compression wave But also in the form of Shear wave travels in Solids

This makes it easier for sound to travel with higher speed in solids
PtichkaEL [24]3 years ago
5 0

Answer:

I agree with B, a lot of people said D but that is wrong.

Explanation:

Took test

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If a 2 kg block of aluminium (SHC: 921 J/kg°C) is heated from 20°C to 40°C, how much energy was transferred to it?
IRISSAK [1]

H = mc∆T

where, H=heat energy

c = SHC

H = 2*921*(40-20)

H = 36840J

H = 36.84KJ

The energy transferred to it is 36.84KJ

4 0
3 years ago
A block of mass 4 kg slides down an inclined plane inclined at an angle of 30o with the horizontal. Find the acceleration of the
Nataly [62]

Answer:

a) a = 4.9 m/s²

b) a = 1.5 m/s²

Explanation:

no friction

F = ma

gsinθ = ma

a = gsinθ

a = 9.8sin30

a = 4.9 m/s²

friction

gsinθ - μmgcosθ = ma

a = g(sinθ - μcosθ)

a = 9.8(sin30 - 0.4cos30)

a = 1.5051...

8 0
3 years ago
If we measure the temperature of a blackbody to be about 300 K (a typical air temperature in Florida), at what wavelength would
Nostrana [21]

Answer:

9.66 x 10^-6 m

Explanation:

Use the Wein's displacement law

\lambda _{m}\times T = b

Where, b is the Wein's constant

b =  2.898 x 10^-3 meter-kelvin

So, λm x 300 =  2.898 x 10^-3

λm = 9.66 x 10^-6 m

3 0
3 years ago
What is happening to the earth's field right now.
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3 years ago
What is the thermal energy of an object
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The thermal energy of an object is defined as the total translational kinetic energy of the particles that make it up.

The answer is B.

8 0
3 years ago
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