Anyone please help me with this question ASAP
1 answer:
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Answer:
1
When second polarizer is removed the intensity after it passes through the stack is
2 When third polarizer is removed the intensity after it passes through the stack is
Explanation:
From the question we are told that
The angle of the second polarizing to the first is
The angle of the third polarizing to the first is
The unpolarized light after it pass through the polarizing stack
Let the initial intensity of the beam of light before polarization be
Generally when the unpolarized light passes through the first polarizing filter the intensity of light that emerges is mathematically evaluated as
Now according to Malus’ law the intensity of light that would emerge from the second polarizing filter is mathematically represented as
The intensity of light that will emerge from the third filter is mathematically represented as
making the subject of the formula
Note that as
is the last emerging intensity of light after it has pass through the polarizing stack
Substituting values
When the second is removed the third polarizer becomes the second and final polarizer so the intensity of light would be mathematically evaluated as
is the intensity of the light emerging from the stack
substituting values
When the third polarizer is removed the second polarizer becomes the
the final polarizer and the intensity of light emerging from the stack would be
is the intensity of the light emerging from the stack
Substituting values
Answer:
1) The maximum jump height is reached at A.
2) The maximum center of mass height off of the ground is B.
3) The time of flight is C.
4) The distance of jump is B.
Explanation:
First of all we need to decompose velocity in its rectangular components, so
1) We use, , as we clear it for
and using the fact that
at max height, we obtain
2) We can use the formula for
, so
3) We can use the formula , to find total time of fligth, so
, as it is a second-grade polynomial, we find that its positive root is
4) Finally, we use , as it has an additional displacement of
due the leg extension we obtain,
, aprox