Lightning bolts can carry currents up to approximately 20 ka. we can model such a current as the equivalent of a very long, straight wire. part a if you were unfortunate enough to be 5.0 m away from such a lightning bolt, how large a magnetic field would you experience

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?

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On average 8 bananas make up one pound. the price is four pounds for 5.00. you must buy 25 bananas. what is your cost?