The first has a axis of transmission oriented vertically. The second has an axis of transmission oriented at 30 degrees form the vertical. The third has an axis of transmission oriented at 45 degrees from the vertical. Light of a measured intensity, I, is sent through these three polarizers from the left. You measure an intensity of 0.35 I after the light passes through all three polarizers on the right. In which way was the light originally polarized before passing through the first polarizer

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr