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vredina [299]
3 years ago
5

Which phase can sound travel through?

Physics
1 answer:
OleMash [197]3 years ago
6 0

Answer:

D. All of the above

Explanation:

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Lena is studying the properties of light in a laboratory. If she increases the amplitude of the light waves she is studying, wha
zaharov [31]

Answer:

A brighter light

Explanation:

Light waves travel through space via light particles called photons. This particles have in essence 2 properties: 1. Amplitude and 2.Frequency. The first one has to do with the intensity of light we see and the second one has to do with the energy (color). If we change only the amplitude, we will see a lighter or darker light and will keep the same color in all amplitude changes. But if we modify the frequency, the intensity will keep the same and the color changes as we move into the light spectrum.

Thus, increasing the amplitude, we will perceive a brigher light.

4 0
3 years ago
What are the eight states of matter?
pishuonlain [190]
The eight states of matter are


Solid.
Liquid.
Gas.
Plasma.
Bose-Einstein Condensate.
Excitonium.
Degenerate Matter.
Photonic Matter.
7 0
3 years ago
Read 2 more answers
A cylinder containing an ideal gas has a volume of 2.6 m3 and a pressure of 1.5 × 105 Pa at a temperature of 300 K. The cylinder
frozen [14]
<h2>Answer:13.5\times 10^{8} joules</h2>

Explanation:

From the first law of thermodynamics,

ΔQ=ΔU+W

Where Q is the heat given to the gas,

U is the internal energy of the gas,

W is the workdone by the gas.

When pressure is constant,

\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}

V_{2}=\frac{2.6\times 900}{300}=7.8m^{3}

When pressure is constant,W=PΔV

Where P is pressure and V is the volume of the gas.

Given P=1.5\times 10^{5}Pa

ΔV=7.8-2.6=5.2m^{3}

So,W=1.5\times 10^{5}\times 5.2=7.8\times 10^{5}J

Given that ΔU=6\times 10^{5}

So,ΔQ=6\times 10^{5}+7.8\times 10^{5}=13.8\times 10^{5}J

5 0
4 years ago
An object has a mass of 20kg, what is its weight on Earth?
umka2103 [35]

Answer:

The formula is W=mg.

W=20×10=200.

5 0
3 years ago
Read 2 more answers
When a person speaks, a sound intensity is generated that is 600 times greater than when the person whispers. What is the differ
Charra [1.4K]

Answer:

Originally :  Level = log I / I0

Currently: Level = 10 log I / I0

Level = 10 log 600 = 10 * 2.78 = 27.8

Note the term 1 bel = 10 decibels

5 0
3 years ago
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