a. θ = 41. 4°
b. θ = 60°
c. θ = 75. 5°
d. θ = 90°
<h3>How to determine the angle</h3>
From the given information, we would be using the Malus' law
It is given as;
I = I0 cos²θ
Where I0 is the intensity of the polarized light after passing through P
a. To find the angle, compare with the given equation
I = (0.750)I0
I = I0 cos θ
then
cos θ = 0. 750
θ =
θ = 41. 4°
b. I = (0.500)I0
cos θ = 0. 500
θ =
θ = 60°
c. I = (0.250)I0
cos θ = 0. 250
θ =
θ = 75. 5°
d. I = 0
cos θ = 0
θ =
θ = 90°
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Answer:
400N
Explanation:
If you have 2 forces (200N) and (200N) pushing an object the same direction in a one dimensional force vectors, the answer would be 400N
Hello!
Pseudoscience in a sentence is "A pseudoscience is set of ideas based on theories put forth as scientific when they are not scientific."
Answer:
Th spring is compressed by distance
Explanation:
Given:
Mass of block A=
Mass of block B=
variation of coefficient of friction with x,
spring constant=k
Distance covered on frictional surface=d
Taking block A and block B as a system , there is no external force acting on the system so the momentum can b conserved in horizontal direction.
Conservation Of Momentum
Now the blocks got stick together so both of them will pass through the frictional surface and will compress the spring together.
Work done by friction
Work done by spring
So applying Work Energy Theorem before the blocks moves to the frictional surface and when the blocks comes to rest by co pressing the spring by distance x.
Work done by all the spring +work done by friction=change in kinetic Energy of the system of blocks.