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The wire in the figure below carries a current of 13 A. Assume that a second long, straight wire is placed right next to this wire. The current in the second wire is 28 A. Use Ampere’s law to discover the magnitude of the magnetic field at a distance of r =0.72 m from the wires when the currents are in the similar direction and in opposite directions.
Two blocks of mass m and 75 kg are connected via a light cord over a massless, frictionless pulley as shown in the attached figure. If the 75 kg block starts 2.0 m above the floor and takes 3.0 s to reach the floor when released from rest, what..
Two balls are rolled off the tabletop that is 0.75m above the floor. Ball A has a horizontal velocity of 3.2 m/s, how far does each ball travel horizontally before hitting the floor
A space traveler weighs 580 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
A wheel rotates with a constant angular velocity of 2.00 rad/s. Find the tangential speed of the point, and compute its radial acceleration from the relation
The gun of a barrel is .600m long. A bullet is shot at apendulum that reaches a height of 1.8m once the bullet strikes. Find the recoil of the gun
Perhaps to confuse a predator, some tropical beetles are colored by optical interference that is due to scales whose alignment forms a diffraction grating, What is the grating spacing of the beetle
bond is standing on a bridge 20 m above the road below and his pursuers are getting too close for comfort. he spots an
a motorcycle can accelerate at a rate of 5.2 ms2. the rider plans to take the bike on a loop de loop that has a radius
The flywheel of a motorhas a mass of 35 kg and a moment ofinertia of 58 kg . m2. The motor develops aconstant torque of 250 N . m, and the wheel starts fromrest. What is the angular acceleration of the flywheel?
Four moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 300 to 285 K. What is the work done by (or done to) the gas? Comprise the algebraic sign.
a 5.0-liter gas tank holds 1.4 moles of helium monatomic and 0.7 moles of oxygen diatomic at a temperature of 260 k.
the pendulum in a grandfather clock has a period of 1.00 sec? if the clocks driving spring is allowed to run down
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