A piece of nichrome wire has a radius of 5.0 x10-4 m. it is, Ask an Expert

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Q. A woman rides a carnival Ferris wheel at radius 20 m, completing 4.7 turns about its horizontal axis every minute. What are (a) the period of the motion, and the magnitude of her centripetal acceleration at (b) the highest point and (c) the lowest point?

Q. A piece of Nichrome wire has a radius of 5.0 x10-4 m. It is used in a laboratory to make a heater that dissipates 2.00 x10^2 W of power when connected to a voltage source of 120 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.

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