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natka813 [3]
3 years ago
14

When light reflects on a mirror, does it undergo a phase change?

Physics
1 answer:
Lynna [10]3 years ago
5 0
The light does not undergo a phase change.

Also, the surface of a mirror is a rigid boundary.
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4) How many liters are in 9.23*10^19 molecules of oxygen gas?
Lapatulllka [165]

0.0034L

Explanation:

Given parameters:

Number of molecules of oxygen gas = 9.23 x 10¹⁹molecules

Unknown:

Volume of oxygen =  ?

Solution:

Assuming the gas is at standard temperature and pressure conditions;

 Volume of gas = number of moles x 22.4

we need to find the number of moles of the oxygen gas;

   number of moles = \frac{number of particles}{6.02 x 10[tex]^{23}}[/tex]

 Number of moles = \frac{9.23 x [tex]10^{19}}{6.02 x 10^{23}}[/tex]

Number of moles = 1.53 x 10⁻⁴moles

Volume of gas =  1.53 x 10⁻⁴ x 22.4 = 0.0034L

learn more:

STP brainly.com/question/12684384

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Answer:

C

Explanation:

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gulaghasi [49]
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a speed of 30 cm per second means the cart moves 30 cm every second. What was the final speed of the cart?
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