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Ber [7]
3 years ago
11

identify the Transformations that take place when you use an electric heater. begin with the transformations that take place in

a hydroelectric power plant and end with the energy produced by the heater and it's fan
Physics
1 answer:
galben [10]3 years ago
3 0
It is a electrical change
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A green light is submerged 2.70 m beneath the surface of a liquid with an index of refraction 1.31. What is the radius of the ci
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Answer:

The radius is  r = 3.1905 \ m

Explanation:

From the question we are told that

        The  distance  beneath the liquid  is  d =  2.70 \ m

        The refractive index of the liquid is  n_i  =  1.31

Now the critical value is mathematically represented as

         \theta =  sin ^{-1} [\frac{1}{n_i} ]

substituting values

         \theta =  sin ^{-1} [\frac{1}{131} ]

         \theta  =  49.76^o

Using SOHCAHTOA rule we have that

         tan \theta =  \frac{ r}{d}

=>     r =  d * tan \theta

substituting values  

        r =  2.7 * tan (49.76)

        r = 3.1905 \ m

         

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<u><em>Mark as brainlies please, I need a few more :D</em></u>

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