2) Which experiment is LEAST likely to be affected by bias?
A) A poll is taken of the class's favorite musical artist
B) The shoe size of 100 randomly selected people is collected and recorded
C) 100 people, randomly chosen, sample and then select the best tasting diet soda
D) The level of audience applause is used to select the winner for the talent show

Two red blood cells each have a mass of 9.0 multiply. gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries −2.50 pc of charge and the other −3.10 pc, and each cell can be modeled as a sphere 7.5 μm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer

More solar radiation is absorbed by earth’s surface than by

Most short-period comets do not have randomly oriented orbits because