A 92 Kg parent and a 23 kg child meet at the center of an ice ring. They place their hands together and push. If the acceleration of the child has a magnitude of 4.5 m/s square, what is the magnitude of the parents acceleration

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.

Anybody wanna ? (picture included? )

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)