Water flows straight down from an open faucet. the effects of air resistance and viscosity can be ignored. (f) the cross-sectional area of the faucet is a2 = 1.80 multiply. gif 10-4 m2, and the speed of the water is v2 =0.73 m/s as it leaves the faucet. what is the cross-sectional area a1 of the water after it has fallen to a point that is a distance h = 0.11 m below the faucet? show some of your steps for getting to this answer for full credit. your answer should be consistent with #10.

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)