Answer:
A Polarizing sheet transmits only the component of light polarized along a particular direction and absorbs the component perpendicular to that direction.
Consider a light beam in the z direction incident on a Polaroid which has its transmission axis in the y direction. On the average, half of the incident light has its polarization axis in the y direction and half in the x direction. Thus half the intensity is transmitted,and the transmitted light is linearly polarized in the y direction.
I think that would be a isthmus
Answer:
E = 1.45 x 10⁹ J = 1.45 GJ
Explanation:
According to the law of conservation of energy:
Potential Energy Lost by Satellite = Kinetic Energy + Internal Energy
![mgh = \frac{1}{2} mv^2 + E\\\\E = mgh - \frac{1}{2} mv^2](https://tex.z-dn.net/?f=mgh%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20mv%5E2%20%2B%20E%5C%5C%5C%5CE%20%3D%20mgh%20-%20%5Cfrac%7B1%7D%7B2%7D%20mv%5E2)
where,
E = Internal Energy = ?
m = mass = 400 kg
g = acceleration due to gravity = 9.81 m/s²
h = height = 500 km = 500000 m
v = speed on ground = 1.6 km/s = 1600 m/s
Therefore,
![E = (400\ kg)(9.81\ m/s^2)(500000\ m)-\frac{1}{2} (400\ kg)(1600\ m/s)^2\\E = 1.962\ x\ 10^9\ J - 0.512\ x\ 10^9\ J](https://tex.z-dn.net/?f=E%20%3D%20%28400%5C%20kg%29%289.81%5C%20m%2Fs%5E2%29%28500000%5C%20m%29-%5Cfrac%7B1%7D%7B2%7D%20%28400%5C%20kg%29%281600%5C%20m%2Fs%29%5E2%5C%5CE%20%3D%201.962%5C%20x%5C%2010%5E9%5C%20J%20-%200.512%5C%20x%5C%2010%5E9%5C%20J)
<u>E = 1.45 x 10⁹ J = 1.45 GJ</u>
I also agree to A. The force will always pull back a lot deals with gravitational pull
D. 8.12×10^7g - 6.20×10^6g