In the velocity selector below, B = 1.8 T, velocity of the charge v= 3.2)(105 m/s, q = 1.6 x 10-19 c and mass = 1.67 x 10-27 kg 5pts a) Draw the magnetic force F3 and the electric force FE on the charge in the velocity selector. b) Calculate the magnitude & direction of the electric E eld between the plates be if this charge goes undeected through the plates? In other words, which plate is positively charged, and which plate is negatively charged. Explain and show the formula. c) After coming out of the velocity selector, the particle then enters mass spectrometer with B = 1.5 T. Calculate the radius of the orbit. Show the formula. 8 A fusiform aneurysm bulges or balloons out an artery on all sides (pictured below). If this aneurysm occurs in an aorta, the internal radius may increase from r1 = 0.95 cm in the normal, healthy section to r2 = 2*r1 in the diseased section (while staying at the same vertical height). The speed of blood flow is v1 = 0.45 m/s in the normal section and the gauge pressure P1 is 100 mmHg. The density of blood is 1060 kg/m3. 5pts Fusiform Aneurysm Image from: http://www.okclipart.com/Fusiform-Aneurysm-Clip-Art30koqyaskv/ a) Calculate the speed of blood v2 in the aneurysm. Write the formula used and state the principle used. b) Calculate the pressure gradient AP = Phealthy-Paneurysm. Write the formula used and state the principle used. 760 mmHg = 1.013x105 Pa. AP = mmHg c) Does the pressure inside the aneurysm increase or decrease?An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.130cm3/s through a needle of radius 0.150 mm and length 2.50 cm. 5pts 1 atm = 760 mmHg = 1.013 x 105 Pa 1 cm = 10'2 m Viscosity of water = 1.0 x 10'3 Pa*s (a) (i) What pressure is needed at the entrance of the needle to cause this ow, assuming the viscosity of the saline solution to be the same as that of water? The gauge pressure of the blood in the patient's vein is 8.00 mm Hg. (Assume that the temperature is 20C .) Express the gauge pressure in Pascals. State the physics principle and approach. (ii) Convert the gauge pressure at the entrance of the needle to absolute pressure. (b) If you wanted to increase the ow rate through the needle, how should you adjust the height of the IV bag? What physics principle did you use