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creativ13 [48]
3 years ago
12

Teri ran 8 kilometers

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

teri is tired

Step-by-step explanation:

from running

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Initial velocity of John's car (V1) = 0 miles per hour
Final velocity of John's car (V2) = 45 miles per hour
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2 years ago
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According to ​Lambert's law​, the intensity of light from a single source on a flat surface at point P is given by Upper L equal
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Answer:

(a) L = k*(1 - sin^{2}(\theta))        

(b) L reaches its maximum value when θ = 0 because cos²(0) = 1

Step-by-step explanation:

Lambert's Law is given by:

L = k*cos^{2}(\theta)   (1)

(a) We can rewrite the above equation in terms of sine function using the following trigonometric identity:

cos^{2}(\theta) + sin^{2}(\theta) = 1

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By entering equation (2) into equation (1) we have the equation in terms of the sine function:

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L = k*cos^{2}(\theta) = k*cos^{2}(0) = k  

We know that cos(θ) is a trigonometric function, between 1 and -1 and reaches its maximun values at nπ, when n = 0,1,2,3...

Hence, L reaches its maximum value when θ = 0 because cos²(0) = 1.

I hope it helps you!

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3 years ago
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