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Fed [463]
4 years ago
5

You hear an _____ when sound bounces off a hard surface.

Physics
2 answers:
Aleksandr [31]4 years ago
7 0
I think b but I’m not completely sure
ludmilkaskok [199]4 years ago
4 0
The answer is B. 100% sure if that.
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In the study of Physics, the "Universal Gas Law" is not considered a law at<br> all.true or false
LiRa [457]

Answer: It’s False hope this helps

Explanation:

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Suatu sistem gas berada didalam ruang yang fleksibel. Pada awalnya gas berada pada kondisi P1 = 1,5 × 10 pangkat 5 N/m2, T1 = 27
enot [183]

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16.00L

Explanation:

First you calculate the number of moles in the system:

PV=nRT\\\\n=\frac{PV}{RT}\\\\n=\frac{(1.5*10^5N/m^2)(12L)}{(0.082L.atm/mol.K)(300.15K)}=73134.16\ mol

To find the new volume of the system you use the following formula for an isobaric procedure:

T_2-T_1=\frac{P}{nR}(V_2-V_1)\\\\V_2=\frac{nR}{P}(T_2-T_1)+V_1\\\\V_2=\frac{(73134.16\ mol)(0.082L.atm/mol.K)}{1.5*10^5N/m^2}(400.15-300.15)K+12L\\\\V_2=16.00L

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4 years ago
What two factors determine the color of an object?
slamgirl [31]
<h3><u>Answer;</u></h3>

4. the material the object is made of and the color of light that strikes it

<h3><u>Explanation;</u></h3>
  • The color of an object is the wavelength of light that the object reflects, which is determined by the arrangement of electrons in the atoms of the material making the object.
  • <em><u>We could therefore say that the color of object depends on or is determined by the material making up the object as this determines the the wavelengths of light the object reflects. Lastly, the color of light source also determines the color of the object.</u></em>
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3 years ago
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Gamma rays are waves of energy that have no charge. <br> True<br> False
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Gamma rays are waves of energy that have no charge. TRUE.
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