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Aloiza [94]
3 years ago
11

Plz help anybody good in Physics?

Physics
1 answer:
svetlana [45]3 years ago
5 0
11. impulse = force * time
12. spring force = - spring constant * extension
13. potential energy = 0.5 * spring constant * extension²
14. centripetal force = mass * centriptal acceleration
15. centripetal acceleration = speed² / radius
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Somewhere in the vast flat tundra of planet Tehar, a projectile is launched from the ground at an angle of 60 degrees. It reache
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Answer:

R = 0.0503 m

Explanation:

This is a projectile launching exercise, to find the range we can use the equation

       R = v₀² sin 2θ / g

How we know the maximum height

      v_{f}² =v_{oy}² - 2 g y

      v_{f}= 0

      v_{oy} = √ 2 g y

      v_{oy} = √ 2 9.8 / 15

      v_{oy} = 1.14 m / s

Let's use trigonometry to find the speed

    sin θ = v_{oy} / vo

    vo = v_{oy} / sin θ

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We calculate the range with the first equation

     R = 1.32² sin(2 60) / 30

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3 years ago
A physicist is calibrating a spectrometer that uses a diffraction grating to separate light in order of increasing wavelength (λ
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Answer:

Explanation:

Given

N=3680 cm^{-1}

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at \theta _3=15^{\circ}\Rightarrow \lambda_3=703.21\ nm

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