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A young man owns a canister vacuum cleaner marked "532 W [at] 120 V" and a Volkswagen Beetle, which he wishes to clean. He parks the car in his apartment parking lot and uses an inexpensive extension cord 6.00 m long to plug in the vacuum cleaner. You may assume the cleaner has constant resistance.
(a) If the resistance of each of the two conductors in the extension cord is 0.800 ? what is the actual power delivered to the cleaner?
W (b) If instead the power is to be at least 522 W, what must be the diameter of each of two identical copper conductors in the cord he buys? (Enter the minimum diameter.)
mm
(c) Repeat part (b) assuming the power is to be at least 529 W. (Enter the minimum diameter.)
An airplane has a mass of 2.6 x10^6 kg, and the air flows past the lower surface of the wings at 95m/s. If the wings have a surface area of 1200m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the air?..
water travels through a 9.6 cm diameter fire hose with a speed of 1.3 m/s. At the end of the hose, find the speed of the water coming out of the nozzle
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The electric field at a distance o f0.145m from the surface of a solid insulating sphere with radius 0.355m is 1750 N/C. Calculate the electric field inside the sphere at a distance of 0.200m from the center
An eagle with 1.8m wingspan flaps its wings 21 times per minute, each stroke extending from 42%u2218above the horizontal to 42%u2218 below. What's the average tangential velocity of the wingtip
Light of wavelength 500nm is incident normally on a diffracation grating. Determine the total number of primary maxima that can be observed in this situation
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. what is the mass of the other isotope
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