Question 5 A stone is thrown from the top of a building with an initial velocity of 20.0 m/s upward. The building is
50.0m high, and the stone just misses the edge of the roof on the way down. Determine
a. the time to reach the maximum height.
(2 marks)
b
b. the maximum height.
(2 marks)
c. the time needed to return to the throwers height.
(2 marks)
d. the velocity and position of the stone at t = 5.00s.
(2 marks)​

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?