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A coil of Nichrome wire is 27.0 m long. The wire has a diameter of 0.390 mm and is at 20.0°C.
(a) If it carries a current of 0.560 A, what is the magnitude of the electric field in the wire?(b) If it carries a current of 0.560 A, what is the power delivered to it?(c) If the temperature is increased to 340°C and the potential difference across the wire remains constant, what is the power delivered?
Water flows into a bucket at the rate of 0.0005 m^3 / s. Thebuckets has a hole in the bottom of area 2.5 square cm. How high above the bottom of the bucket will the water rise
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
a series of object are being rotated. the same net torque is being applied to each object. rank the object in order of
A 5.0micrometer strand of DNA carries +e charge per nm of length. Treating it as a charged line, what's the electric field strength 28 nanometer from the DNA, not near either end
Investigate Ohm’s law for reverse currents in resistors. Turn off the power supply and reverse the connections on the power supply. Turn the power supply back on and take data from 5.0 V to 0 V. Do not stop data collection.
A 3.0 g. copper penny has a positive charge of 0.52 millicoulombs. What decimal fraction of its electrons has it lost
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
A tennis player swings her 1000 g racket with a speed of 12.0m/s . She hits a 60 g tennis ball that was approaching her at a speed of 10.0m/s, What is the target's speed just after the bullet emerges
A spherical surface of radius R contains a charge Q in the center. What happens to the total flux of the electric field through the sphere if its radius increases by a factor of 10
A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 15.0 m/s due north relative to the water. Illustrate what is the velocity of the boat relative to shore?
Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g.Silver has 47 electrons per atom, and its molar mass is 107.87g/mole.
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 10 s, it rotates 2 revolutions. What was the angular acceleration during this time
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