Which of the following is not true about compound microscopes and the dissecting microscope? select one: a. the compound microscope is used to observe thin slices of specimen while the dissecting microscope. does not necessarily need the samples to be thinly sliced in order to be viewed. b. the compound microscope has discrete powers of magnification while the dissecting microscope has a continuous range of magnification. c. the compound microscope has an inverted image whereas the dissecting microscope has the same orientation as the specimen. d. the highest magnification with the compound microscope can magnify to a higher power than a dissecting microscope during the histology lab. e. the compound microscope reflects light off the sample, whereas the dissecting microscope shines light through the sample.

it was given as a lesson and guide for prayer.

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.

answerdmitry mendeleyev made a workable classification of the elements