Answer:
the axes of the two polarizers are aligned, the angle between this axis must be zero
Explanation:
Polarizers are anisotropic systems where absorption is selective in each axis, in this case they indicate that on an axis they let 100% pass and perpendicular to this axis no light passes.
The first polarizer defines a direction of light that of its axis, it is said that the light is polarized, when this light reaches the second polarized, so that it can pass the axis must be in the direction of the polarized beam.
In summary, the axes of the two polarizers are aligned, the angle between this axis must be zero
Answer:
Momentum is the product of the mass of an object times its <em>VELOCITY</em><em>.</em><em> </em>
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>!</em><em>!</em><em> </em>
Answer:
We first to know that if the wheel rotates from rest means that at t=0 the velocity and the angle rotated is 0.
Then, we know:
Integrating 2 times, we have:
For the first 27.9 s, we have:
w = 37.107 rad/s
angle = 517.6426 rad
For the next seconds, according to the text, the angular velocity is constant so
w = 37.107 rad/s and hence, integrating:
Then, the time remaining is:
53.5 - 27.9 = 25.6
So for the next 25.6 seconds we have:
Finally, we add the 2 angles and we have as a result:
Answer:
0.0238 centimetre
Explanation:
multiply the length value by 100
Change in speed = 20 m/s
Time for the change = 10 sec
Average acceleration during the time =
(change in speed) / (time for the change)
(20 m/s) / (10 sec) = <em>2 m/s²</em>