Aparticular laser consumes 200.0 watts of electrical power and produces a stream of 1.79×1019 1181 nm photons per second. part a what is the percent efficiency of the laser in converting electrical power to light?

While unproven, it uses facts to support part of a conclusion. it is still factual and has predictive power, however.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.

Answer///an early form of the atomic theory; dalton atomic theory;

Ans() ; the burning of them contributes to global warmingthey come from decayed organic material;