Label the following with what energy type it belongs to

(1)Thermal; (2)Nuclear; (3)Radiant; (4)Mechanical; (5)Chemical; (6)Electrical
___ A ball on top of a hill. Given off by the sun.
___ Gasoline. A car going 50 mph.
___ Used to run a clock. Heat from a fire.
___ A hot stove. Light from a match.
___ Uranium in reactors. Stored in plants.
___ Stored in food. Powers photosynthesis.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

The two required components for a generator