A beam of unpolarized visible light is incident on a polarizer with its axis vertical. It is followed by a second polarizer with its axis at 300 to the vertical. The second polarizer is followed by a third polarizer with its axis at 800 to the vertical. What is the input intensity if the output intensity is 100W/m2 .

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.