7.37 A thin cylindrical disk of genetically transformed hepatocytes 2.5cm in diameter is suspended in a nutrient solution at 37°C. The nutrient solution has a density of 1 g cm−3 and a viscosity of 0.0012 Pa s. The oxygen diffusivity in the nutrient solution was found to be 2.5 × 10−5 cm2 s−1. The half-thickness of the disk (δ) that contains the cells is 150 μm, and the cell fraction is 0.35. The consumption rate of oxygen on a per cell volume basis by these cells is 18.5 μM s−1. If the pO2 of oxygen in the bulk nutrient solution is 150 mmHg, estimate the RPM that the disk needs to be rotated at so that the oxygen level at the centerline of the disk (i. e., at x = δ) is at least 25 mmHg. Assume Henry’s constant for the oxygen in this nutrient solution is equal to 0.73 mmHg μM−1.

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out