How much work will a machine with a power rating of 1.1 × 103 watts do in 2.0 hours?
2 answers:
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Answer:
Explanation:
Given
magnitude of vector=8.7 m/s
Direction
Therefore vector x component is
=-2.104
i.e. it is acting in negative x axis
vector y component
Therefore it lies in negative y axis
Judging vector x and y component
It lies in third quadrant
Answer:
The intensity of the emerging light reduced to 25%
Explanation:
Given :
Unpolarized light intensity =
Initial polarizer angle = 0°
Final polarizer angle between optic axis and transmission axis = 45°
Unpolarized light passes through first polarizer the intensity reduces to half.
after second polarizer the intensity is half till the last polarizer,
Therefore, the intensity of the emerging light reduced to 25%