Does net force stay the same when a massless pulley is replaced by a pulley with mass

What is the role of the ocular lens?

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0

What is the major limitation to the light microscope?