What is the potential energy of a 100 kg object that is suspended motionless at 30 meters above the ground?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?

Consider the phase change taking place in the picture. you could use all but one statement to describe what is happening here. that is: a) temperature is increasing. b) kinetic energy is increasing. c) the space between the particles remains the same. d) the attractive force between the particles is decreasing.