Modern wind turbines generate electricity from wind power. the large, massive blades have a large moment of inertia and carry a great amount of angular momentum when rotating. a wind turbine has a total of 3 blades. each blade has a mass of m = 5500 kg distributed uniformly along its length and extends a distance r = 48 m from the center of rotation. the turbine rotates with a frequency of f = 15 rpm.

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Need only answer if you think you know it