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Lynna [10]
3 years ago
11

The figure shows the original channel of a river, as well as its current channel. Which of the following forces MOST LIKELY chan

ged the course of the river?
a
lava flow and weathering

b
crustal uplift and compression

c
erosion and deposition

d
glaciers and eruption
Physics
1 answer:
mash [69]3 years ago
3 0

Answer: bbbb

Explanation:

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Answer:

a

 \theta  =  0.0022 rad

b

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Explanation:

From the question we are told that  

   The  wavelength of the light is \lambda  = 550 \ nm  =  550 *10^{-9} \ m

    The  distance of the slit separation is  d = 0.500 \ mm = 5.0 *10^{-4} \ m

 

Generally the condition for two slit interference  is  

     dsin \theta =  m \lambda

Where m is the order which is given from the question as  m = 2

=>    \theta  =  sin ^{-1} [\frac{m \lambda}{d} ]

 substituting values  

      \theta  =  0.0022 rad

Now on the second question  

   The distance of separation of the slit is  

       d =  0.300 \ mm  =  3.0 *10^{-4} \ m

The  intensity at the  the angular position in part "a" is mathematically evaluated as

      I  =  I_o  [\frac{sin \beta}{\beta} ]^2

Where  \beta is mathematically evaluated as

       \beta  =  \frac{\pi *  d  *  sin(\theta )}{\lambda }

  substituting values

     \beta  =  \frac{3.142  *  3*10^{-4}  *  sin(0.0022 )}{550 *10^{-9} }

    \beta  = 0.06581

So the intensity is  

    I  =  I_o  [\frac{sin (0.06581)}{0.06581} ]^2

   I  =  0.000304 I_o

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Answer:

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Conduction and convection are the two most prominent processes that helps transfer energy outward to the earth's crust.

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  • Also, heat that accreted during the formation of the earth is a significant source of internal energy.
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