you have two positively charged spheres. one sphere has 3 times the charge of the other sphere if they are 0.16m apart and the force between them is 0.28 N, what are the charges of the two spheres?

The air that we breath is made mostly of which gaseous molecule

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above