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A copper wire has diameter 0.140mm and length 11.0cm . It's in a horizontal plane and carries a current of 2.35A . The density of copper is 8920 kg/m^3. Find the magnitude of the magnetic field needed to suspend the wire against gravity. Express your answer with the appropriate units.
Water is moving at a velocity of 1.50 m/s through a hose with an internal diameter of 1.60 cm. What is the flow rate in liters per second
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, draw the diffraction pattern you might expect on a screen 10 m behind slit
A 3.9×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.8×10-5 s and a maximum speed of 1.70×103 m/s. Find the maximum displacement of the particle
A 12.0 g rifle bullet is fired with a speed of 740 m/s into a ballistic pendulum with a mass of 8.00 kg, suspended from a light and long cord. Compute the max height through which the block would rise
A major motor company displays a die-cast model of its first automobile, made from 5.14 kg of iron. What mass of gold is needed to make the new model
At t = 0 a grinding wheel has an angular velocity of 27.0 rad/s. It has a constant angular acceleration of 32.0 rad/s2 until a circuit breaker trips at t = 2s. From then on, it turns by 432 rad as it coasts to a stop at constant angular accelerati..
Five objects, each of mass M, are equally spaced on the arc of a semicircle of radius R, find gravitational field at the center of curvature of the arc
A bicyclist is traveling at a speed of 20 m/s as he approaches the bottom of hill. Determine the vertical height of the hill
Consider a simple pendulum with L = 2.4 m and m = 1.8 kg. Suppose the mass is initially at rest at the lowest point on its trajectory when it is given an impulse such that it then has a velocity of 0.17 m/s. What is the total mechanical energy of the..
A toy rocket engine lifts a mass of 4.5 kg to a height of 15.0 meters. At this height, the rocket is moving at 26.7 m/s. How much work was done by the rocket engine
A man of mass 76.5 kg walks down the aisle of an airplane at a speed of 1.10 m/s in the forward direction while the plane moves at a speed of 280 m/s relative to the earth
An arterial constriction causes the radius of an artery to decrease from its normal value of 4mm to 2.5 mm. Calculate the volume flow rate through the artery
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