If the LED has an output power of .001 Watts = .001 Joule/second, how many photons are output by the LED per second?

Ithink it is c ,i hope i you

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached

Cardiac muscle causes movement in the bone.