A hollow, conducting, discharge sphere of mass floats in a dielectric liquid of constant K, keeping 3/4 of its volume out of the liquid. At what potential must the sphere be charged to float half its volume

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

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

Which planet do you think would be easiest for humans to colonize some day?