How many atoms are present in 3 moles of chromium? a. 1.80 x 1023 atoms b. 6.02 x 1023 atoms c. 52.0 atoms d. 1.80 x 1024 atoms

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?

Which of the following is not an appropriate unit for acceleration? (kg/12 mihr? m/min/sec cm/30c?