For dialysis membranes the lp was determined to be 6.34 x 10-7 cm min-1 mm hg-1. a cylindrical hole 1 cm in diameter was cut in two lexan pieces that were then bolted together with the membrane between. fluid entered one side through a pump and a pressure transducer was affixed. the flow was adjusted until the pressure (above atmospheric) was 2 pascals. the pressure on the opposite side was atmospheric (zero). what was the flow through the membrane?

According to the tide table below what time of day will the highest tide occur?

A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)