Scientists are exploring ways to increase the shelf life of milk by using pulsed electric fields to kill bacteria. One specific system uses 9.9 cm diameter circular plates which are separated by 0.75 cm. The space between the plates is filled with milk, which has the same dielectric constant as water. The plates are then charged to 31000 V. What is the capacitance of the system? Note: 0 = 8.85 1012 C 2 /(N m2 ) and = 80 for water. Answer in units of F.