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AfilCa [17]
3 years ago
15

A person kicks a rock horizontally off a cliff with a speed of 35m/s. It takes 12 seconds to hit the ground below(don’t forget y

our units). What is the height of the cliff? What is the final vertical velocity? What is the range?
Physics
1 answer:
Marta_Voda [28]3 years ago
4 0

take gravity g as 9.81

height of cliff = ut +1/2at^2 = 1/2*(9.81)*12^2 = 706.32 meters

What is the final vertical velocity

v=u+at, final velocity v = 0 + 9.81*12 = 117.72 m/s


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We are given;

Wavelength 1; λ₁ = 589 nm = 589 × 10⁻⁹ m

Wavelength 2; λ₂ = 589.6 nm = 589.6 × 10⁻⁹ m

We are told that L₁ = L₂. Thus, we will adopt L.

Formula for the number of bright fringe shift is;

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For Wavelength 1;

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For wavelength 2;

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Now, we are told that one wavelength must have produced one more new maxima than the other wavelength. Thus;

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Plugging in the values of m₁ and m₂ gives;

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Torque can be best described as which of the following? Give an example of both a force and a torque and explain why in a couple
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