In terms of hotter and cooler objects which direction does heat energy move. Give three examples

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Atoms in a molecule are bonded together by sharing gaining or losing_