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DerKrebs [107]
3 years ago
7

Lab: Thermal Energy Transfer What is the purpose of the lab, the importance of the topic, and the question you are trying to ans

wer?
Physics
1 answer:
VladimirAG [237]3 years ago
6 0

Answer:

it's important because it shows how thermal energy transforms or continues to be all around us in everything

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Suppose that the Sun started shrinking in size, without losing any mass. What would be the effect of the Sun's change on the orb
adell [148]

Answer:

F = G M m / R^2 gravitational force on planet of mass m.

None of these quantities change in the given hypothesis so

there will be no change in the orbit of mass m

3 0
2 years ago
What is the speaker’s power output if the sound intensity level is 102 dBdB at a distance of 25 mm ? Express your answer to two
lesya [120]

Answer:

Power  = 124.50 W

Explanation:

Given that:

The Sound intensity of a speaker output is 102 dB

and the distance r = 25 m

For the intensity of sound,

\beta (dB)= 10 \  log_{10 } (\dfrac{I}{I_o})

where;

the threshold of hearing   I_o = 10^{-12} (W/m^2)

\dfrac{102 }{10}= log_{10}( \dfrac{I}{10^{-12}})

10^{10.2} =  \dfrac{I}{10^{-12}}

I = 10^{10.2} \times 10^{-12}

I = 0.01585 W/m²

If we recall, we know remember that ;

Power = Intensity × A rea

Power = 0.01585 W/m² × 4 × 3.142 × (25 m)²

Power  = 124.50 W

7 0
3 years ago
__________ are scientists that study the composition of earth including rock layers at the surface.
insens350 [35]

Answer:

Geology is the study of planet Earth, including its composition and structure. Geologists are scientists who study Earth and the processes that shape Earth over time. Geologists study two types of forces that change Earth's surface.

Explanation:

please mark me brainliest

4 0
3 years ago
How far will a freely falling object fall from rest in 5 seconds?​
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<h2><em>how far will a freely falling object fall from rest in 5 seconds?</em></h2>

  • <em>If an object free falls from rest for 5 seconds, its speed will be <u>about 50 m/s.</u></em>

<em><u>hope </u></em><em><u>it</u></em><em><u> helps</u></em>

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3 years ago
PLEASE HELP!! DUE SOON!!!
max2010maxim [7]

Answer:

See attached file :)

Hope this helps!

All the love, Ya boi Fraser :)

4 0
3 years ago
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