3 years ago

What happens to the frequency of a wave if its energy increases?

Physics

1 answer:

salantis [7]3 years ago

6 0

The frequency of a wave increases when the energy increases

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Which car is experiencing negative acceleration?

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Light travels at a speed of 2.998*108 m/s. Light takes approximately 3.25 minutes to travel from the Sun to reach a planet. Calc

ANTONII [103]

Answer:

585×10⁸ m

Explanation:

Distance = rate × time

d = (2.998×10⁸ m/s) (3.25 min) (60 s/min)

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3 years ago

The ratio of carbon-14 to nitrogen-14 is an artifact is 1:3. Given that half-life of carbon-14 is 5730years, how old is the arti

dusya [7]

Answer:

9155 years old

Explanation:

We use the following expression for the decay of a substance:

$N = N_0\,\,e^{-k*t}$

So we first estimate the value of k knowing that the half-life of the C14 is 5730 years:

$N = N_0\,\,e^{-k*t}\\N_0/2=N_0\,\,e^{-k*5730}\\1/2 = e^{-k*5730}\\ln(1/2)=-k*5730\\k= 0.00012$

so, now we can estimate the age of the artifact by solving for"t" in the equation:

$1/3=e^{-0.00012*t}\\ln(1/3)= -0.00012*t\\t=9155. 102$

which we can round to 9155 years old.

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3 years ago

Which statement explains the similarity between momentum and kinetic energy of an object?

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Answer:B.

Both increase as the mass and velocity increase.

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Make I the subject<br> E=VIt

slava [35]

To Make I the subject you need to get it by itself. To do this divide both sides by V and t:

I = E/Vt

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3 years ago