Which of the following would be a good question that could be scientifically investigated? a. what is the best advice a parent can give a child? b. what is the most appropriate number of dogs for a household? c. do cherry popsicles free slower than orange popsicles? d. what is the correct way to pursue happiness in life?

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?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.