What is the magnitude of the magnetic field
An electron accelerated from rest through a voltage of 450 V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 22 cm, what is the magnitude of the magnetic field?
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While attempting to tune the note C at 517 Hz, a piano tuner hears 6 beats/s between a reference oscillator and the string. What are the possible frequencies of the string?
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An unknown gas effuses at one-half the speed of oxygen. what is the molar mass of the unknown? The gas is known to be either HBr or HI. Which gas is it?
An opera singer in a convertible sings a note at 600hz while cruising down the highway at 81km/h. The speed of sound n the air is 343m/s. What is the frequency heard by a person standing beside the road in front of the car?
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Why does Canada play such a strong role in the threat of terrorism to the United States? Who is Khadr and what is his role in Canada? Just a simple write up. Explain in 250 - 300 words.
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