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Two insulated wires, each 2.90 m long,are taped together to form a two-wire unit that is 2.90 m long. One wire carries a current of 7.00 A;the other carries a smaller current I in the opposite direction. The two wire unit is placed at angle of 51.0° relative to a magnetic field whose magnitude is 0.360 T. The magnitude of the net magnetic force experienced by the two-wire unit is 3.13 N. What is the current I?
one mol of aluminum at a uniform temp of 0c is placed in thermal contact with a 2nd mol of aluminum which initially is
A 2.0 cm x 2.0cm x 9.0 cm block floats in water with its long axis vertical. The length of the block above water is 1.0cm What is the block's mass density
What is the car's maximum speed on an incline of 1 in 20 (ie, if theta is the angle of the incline with the horizontal, sin = 1/20)? Illustrate what is its power output on a 1-in-10 incline if the car is traveling at 10 m/s?
q1. two small insulating spheres with radius 7.50times10-2 m are separated by a large center-to-center distance of
Two pellets, each with charge 5 microcoulomb (1 microcoulomb = 0.000001 coulombs), are located 0.5 m apart. What is electrical force between the charges.
The Earth's distance from the sun varies from 1.465 x 108 kmto 1.518 x 108 kmduring the year. Take the Sun to be at rest. Determine the difference in the Earth's kinetic energy
A horizontal wire of 0.52 m carrying a current of 8.2 A is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
the electric field on the axis of a uniformly charged ring has magnitude 390knc at a point 6.2cm from the ring center.
At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.8 m until, Find the change in its velocity during the turn
Suppose a block of mass 5 kg is resting on a horizontal surface and coefficient of static friction between block and surface is 0.2. What is the reaction on the block by the vertical wall
a 13 g bullet traveling 222 ms penetrates a 2.0 kg block of wood and emerges cleanly at 159 ms. if the block is
Four identical masses of 2.7 kg each are located at the corners of a square with 1.5 m sides. What is the net force on any one of the masses
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