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2 years ago

Sarah rides her horse with a constant speed of 12km/h. How far can she travel in 3 hours?

Physics

1 answer:

Law Incorporation [45]2 years ago

3 0

Speed=12km/h
Time=3h

$\\ \sf\Rrightarrow Distance=Speed\times Time$

$\\ \sf\Rrightarrow Distance=12(3)$

$\\ \sf\Rrightarrow Distance=36km$

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Answer:

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Explanation:

From Snell's law;

n₁sin(I) = n₂sin(r)

Where;

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n₂ is the refractive index of light in medium 2 = 1.4

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Applying snell's law

$n_1sin(I) = n_2sin(r)\\\\sin(r) = \frac{n_1sin(I) }{n_2}\\\\sin(r) = \frac{1.2*sin(56.439) }{1.4}\\\\sin(r) = 0.714\\\\r = sin^-(0.714)\\\\r = 45.56^o$

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3 years ago

Water is discharged from a pipeline at a velocity v (in ft/sec) given by v = 1306p(1/2), where p is the pressure (in psi). If th

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Answer:

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3 years ago

A) An automobile light has a 1.0-A current when it is connected to a 12-V battery. Determine the resistance of the light.

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Answer:

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