jazare05
10.11.2019 •
Mathematics
Two polarizers are arranged as shown. how much light will reach point x?
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Ответ:
0
Step-by-step explanation:
The light intensity would be cut by 100% if the second filter is rotated 90 degrees.
Ответ:
C) 50%
Step-by-step explanation:
If the polarizes are parallel, then it will be 0%. But if they're both perpendicular than it will be 50%. If they are neither parallel nor perpendicular, than it will be less than 50% and greater than 0%
Ответ:
So the distance covered is 8400 * (2* pi)
The value of pi = 3.14
Circumference = 2*3.14 * 8400 = 52752 km
This occurs in 12 hours so
s = d/t = 52752 / 12
s = 4396 km/hour <<<< answer.