3 years ago

The movement of energy from the sun toward the earth is an example of ?

Physics

2 answers:

Anni [7]3 years ago

8 0

Answer:

I took the quiz, Radiation

I am Lyosha [343]3 years ago

3 0

Gravitational potential energy

is the answer

trust me :)

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A layer of oil (n = 1.38) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid.

Vinil7 [7]

Answer:

Refractive index of unknown liquid = 1.56

Explanation:

Using Snell's law as:

$n_i\times {sin\theta_i}={n_r}\times{sin\theta_r}$

Where,

${\theta_i}$ is the angle of incidence ( 65.0° )

${\theta_r}$ is the angle of refraction ( 53.0° )

${n_r}$ is the refractive index of the refraction medium (unknown liquid, n=?)

${n_i}$ is the refractive index of the incidence medium (oil, n=1.38)

Hence,

$1.38\times {sin65.0^0}={n_r}\times{sin53.0^0}$

Solving for ${n_r}$ ,

Refractive index of unknown liquid = 1.56

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3 years ago

9. How much work is done when a 15kg box is lifted to a height of 2 meters?

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Answer: W = 294 J

Explanation: Solution:

Work is expressed as the product of force and the distance of the object.

W = Fd where F = mg

W= Fd

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= 15 kg ( 9.8 m/s²) ( 2m )

= 294 J

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3 years ago

During the compression stroke of an internal combustion engine, _____

Leona [35]

easy, The fuel is ignited

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2 years ago

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. A book is moved once around the perimeter of a table of dimensions 2.00 m by 3.00 m. If the book ends up at its initial positi

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