3 years ago

The wavelength of a light wave will affect the light’s

2 answers:

8 0

The answer is a because
<span>27down voteacceptedFor almost all detectors, it is actually the energy of the photon that is the attribute that is detected and the energy is not changed by a refractive medium. So the "color" is unchanged by the medium...</span>

AleksandrR [38]3 years ago

5 0

Answer: The answer is A

Explanation: I just did it and got it sorry i dont have an explanation ;)

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A record turntable rotates through 5.0 rad in 2.8 s as it is accelerated uniformly from rest. What is the angular velocity at th

Usimov [2.4K]

Answer:

$\omega_f = 3.584\ rad/s$

Explanation:

given,

turntable rotate to, θ = 5 rad

time, t = 2.8 s

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now, using equation of rotational motion

$\theta = \omega_i t + \dfrac{1}{2}\alpha t^2$

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$\alpha= \dfrac{10}{2.8^2}$

α = 1.28 rad/s²

now, calculation of angular velocity

$\omega_f = \omega_i + \alpha t$

$\omega_f =0 +1.28\times 2.8$

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