A) how many photons per second are emitted by a monochromatic lightbulb (660 nm ) that emits 45 w of power? (express your answer using two significant figures.) b) if you stand 17 m from this bulb, how many photons enter each of your eyes per second? assume your pupil is 5.0 mm in diameter and that the bulb radiates uniformly in all directions. (express your answer using two significant figures.)

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Which levels of government establish and implement educational requirements for minors