The size of spherical aerobic bacteria is limited by the rate at which oxygen diffuses through water. a bacterium with a radius greater than roughly 10 μm is not able to obtain enough oxygen from the surrounding water to sustain itself. given that the diffusion constant of oxygen in water is 8 ×10−10 m2s-1, how long does it take oxygen in water to diffuse an rms distance of 10 μm?

Write the correct abbreviation for each metric unit

What describes the particles in a liquid

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.