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nikitadnepr [17]
2 years ago
11

_____________ is the study of movement in athletes. A. Sports biomechanics B. Posture C. Dynamics D. Anatomy

Physics
1 answer:
liubo4ka [24]2 years ago
3 0

Answer:

I believe its A: Sports biomechanics.

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In any energy transformation, there is always some energy that gets wasted as non-useful heat.
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3 years ago
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A light ray incident from medium 1 to medium 2, where n1&gt;n2. When the incident angle exceed the critical angle ac, the refrac
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Explanation:

(a)

Critical angle is the angle at the angle of refraction is 90°. After the critical angle, no refraction takes place.

Using Snell's law as:

n_1\times {sin\theta_i}={n_2}\times{sin\theta_r}

Where,  

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{n_1} is the refractive index of the incidence medium

Thus,

n_1\times {sin\ \theta_{critical}}={n_2}\times{sin\ 90^0}

The formula for the calculation of critical angle is:

{sin\theta_{critical}}=\frac {n_2}{n_1}

Where,  

{\theta_{critical}} is the critical angle

(b)

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3 years ago
Describe streak and cleavage and explain how they can be used to identify a mineral. PLEASE HELP.
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Streak means continuously
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3 years ago
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Consider a situation where a constant force of 25 N acts on an object having a mass of 2 kg for 3 seconds. What is the work done
blagie [28]

Answer:

Work done W =1406.25 J

Explanation:

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Substitute the values

\Rightarrow S=0*3+\frac{1}{2}(12.5)3^2

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Now work done is given by:

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W =1406.25 J

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2 years ago
: Do you attract the Earth or the Earth attracts you which one is attracting with a larger force?
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