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Ilya [14]
3 years ago
11

What do Rachel's actions reveal about her

Physics
1 answer:
nexus9112 [7]3 years ago
6 0
Rachel from where ? a movie? book?
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a measuring cylinder contains 30cm3 of a liquid some more of the liquid is added until the liquid level reaches the 50cm3 mark t
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Answer:

1.5g/cm³

Explanation:

Given parameters:

Initial volume of the liquid  = 30cm³

Final volume of the liquid  = 50cm³

Mass of the liquid  = 30g

Unknown:

Density of the liquid  = ?

Solution:

Density is the mass per unit volume of a substance.

  Density  = \frac{mass}{volume}  

volume of the liquid  = final volume - initial volume  =  50cm³  -  30cm³

 volume of the liquid  = 20cm³

Density  = \frac{30}{20}   = 1.5g/cm³

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3 years ago
Why is the light bulb not a closed system?
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Answer:An incandescent light bulb gives only energy of the system in the form of heat. ... The roof of a house is stable but it receives energy from the surroundings and transfers energy through it towards lower temperature side which includes no mass transfer. So, it is best considered as closed system.

Explanation:

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3 years ago
What profession is most likely to make use of amperes and candelas? A. nurse practitioner B. marine biologist C. electrical engi
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Ampere is the unit for the current that passes through the circuit. Further, the word "candela" is the unit for the luminous intensity. The professional that would make use of these units are the electrical engineer. Thus, the answer is letter C. 
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What is Snell's Law?​
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Answer:

law stating that the ratio of the sines of the angles of incidence and refraction of a wave are constant when it passes between two given media.

Snell's law, in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive index of each. ... Snell's law asserts that n1/n2 = sin α2/sin α1.

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HELP ME!
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Micah knows that a car had a change in velocity of 15 m/s.To determine acceleration ,Micah also needs the TIME of the total trip in seconds.

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3 years ago
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