Need full solution A body is projected horizontally from the top of a tower
100 m high with a velocity of 9.8 ms-1. Find the velocity
with which it hits the ground.

[Ans: 45.8 ms-1, 77.64° with horizontal]

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?