You can obtain a rough estimate of the size of a molecule with the following simple let a droplet of oil spread out on a fairly large but smooth water surface. the resulting oil slick that forms on the water will be approximately one molecule thick. given an oil droplet with a mass of 9.00 x 10^-7 kg and a density of 918 kg/m^3 that spreads out to form a circle with a radius of 41.8 cm on the water
what is the approximate diameter of an oil molecule?

The differences between  a compression wave and a transverse wave?

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen