A parallel-plate capacitor with area 0.100 m2 and plate separation of 2.00 mm is connected to a 3.00 V battery. (a) What is the capacitance?
F
(b) How much charge is stored on the plates?
C
(c) What is the electric field between the plates?
N/C
(d) Find the magnitude of the charge density on each plate.
C/m2
(e) Without disconnecting the battery, the plates are moved farther apart. Qualitatively, what happens to each of the previous answers?

Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.