Steel objects can become temporary magnets because they are mainly composed of which element? carbon iron nickel cobalt.

Which changes of state do the labels represent? a: b: c:

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =