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carries a 10 A current with a uniform current density. Use Ampere's Law to determine the magnetic field strength
a) at the axis of the wire.
b) 0.2 mm from the axis.
c) at the surface of the wire.
d) 4 mm from the wire axis.
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
Determined to test the law of gravity for himself, a student walks off a skyscraper 180 m high, stopwatch in hand, and starts his free fall (zero initial velocity).
Two violins are supposed to be playing concert A, at 440 Hz [{\rm Hz}], What beat frequency do the violinists hear
A 3.80 m-long, 430 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..
Two positive point charges, each 12\mu C , lie along the x-axis at x = -0.10m and x = +0.10m. Find the electric field at the point (0, 0.25m ) on the y-axis
A football resting on the ground is kicked at an angle of 35.0° towards the uprights with an initial speed of 20.0 m/s
An elevator with a mass of 1000 kg, including passengers, is ascending at constant speed. What is the power delivered by a motor for this ascend
Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.4 mm in humans, What is the power delivered to your eardrum
A sound wave travels in air toward the surface of a freshwater lake and enters into the water. The frequency of the sound does npt change when the sound enters the water. The wavelength of the sound is 2.49 m in the air, and the temperature of bot..
A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached. determine the amount by which the spring is compressed
A visual inspection of an insect with mass 0.4mg (milligrams) suggest that its uncertainty in postion is 0.5um, How fast could the insect be moving
One component of a metal sculpture consists of a solid cube with an edge of length 0.211 m. Find the cube\'s mass
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