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aleksley [76]
3 years ago
6

What are the four main spheres of the earths ststem​

Physics
2 answers:
serious [3.7K]3 years ago
7 0
Lithosphere,hydrosphere,biosphere,and atmosphere
vladimir2022 [97]3 years ago
5 0

Answer:

"lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air)

Hope this helps

-Amelia

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When your vehicle turns a corner, the tracks made by the rear tires are always: a) Outside of those made by your front tires b)
ankoles [38]

Answer:

I think it's D

Explanation:

because I have seen the tracks of the tires

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Why are stars considered to be the building blocks of the universe?
eduard
The answer for that would be C
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Which statement best summarizes the theory of evolution by natural selection?
prisoha [69]

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2 years ago
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A damped mass/spring system takes 14.0 s for its amplitude of the oscillator to decrease by a factor of 9. By what factor does t
fiasKO [112]

Answer:

The correct answer is "0.246".

Explanation:

Given that the amplitude is decreased by a factor of 9, then

A \rightarrow (A-\frac{A}{9} )

A \rightarrow \frac{8A}{9}

As we know,

Energy will be:

⇒  E_{1}=\frac{1}{2}KA^2

and,

⇒  E_{2}=\frac{1}{2}K(\frac{8A}{9} )^2

          =\frac{64KA^2}{162}

⇒  \Delta E=E_1-E_2

On putting the estimated values, we get

           =\frac{1}{2}KA^2-\frac{64KA^2}{162}

⇒  \frac{\Delta E}{E}=\frac{\frac{20}{162}KA^2}{\frac{1}{2}KA^2}

          =\frac{40}{162}

          =0.246

3 0
3 years ago
Two charged particles are placed 2.0 meters apart. The first charge is +2.0 E-6 C, and the second charge is +4.0 E-6 C. What is
ipn [44]
F = kq1q2/r^2 

<span>q1 is first charge </span>
<span>q2 is second charge </span>
<span>k is 9 E9 </span>
<span>r is distance between them </span>

<span>F = (9E9)(2 E-6)(4 E-6)/2^2 = 0.018 N </span>

<span>A postive answer indicates a repulsive force</span>
4 0
3 years ago
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