Which element is always found in bioclastic sedimentary rocks?

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.

The slope of a velocity time graph over any interval of time gives the during that interval

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created