Q1. Assume unpolarized light of intensity 197 W/m2 falls on the polarizer in the figure, and the angle in the drawing is 37.0°. What is the light intensity reaching the photocell?
Q2. The femoral artery is the large artery that carries blood to the leg. A person's femoral artery has the inner diameter of 1.3 cm. What is the resistance of a 29-cm-long column of blood in this artery?
Q3. If you are 8.00 m away from a lightning strike of 5.00×10^4 A(strikes of that magnitude do occur), what strength of magnetic field do experience? Model the lightning as a long, straight wire.