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Question: Two long parallel wires are separated by 3.2 mm. The current flowing in one of the wires is twice that in the other wire. If the magnitude of the force on a 4.0-m length of one of the wires is 6.7 µN, what are the values of the two currents? (Enter your answers from smallest to largest.)
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
Typically, a tennis ball hit during a serve travels away at about 47 m/s. what is the magnitude of the change in its momentum (in kg*m/s) on leaving the racket
Ball 1, with a mass of 140g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 310g, What are the final velocities of each ball if the collision is perfectly inelastic
Two objects with masses 5.60 kg and 1.40 kg hang 0.500 m above the floor from the ends of a cord 6.80m long passing over a frictionless pulley. Both objects start from rest. Find the maximum height reached by the 1.40kg object.
A certain lightbulb has a tungsten filament with a resistance of 19.4 ? when at 20.0°C and 150 ? when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature o..
Two wheels have the same mass and radius of 4.8 kg and 0.50 m, respectively. Find the net external torque that acts on each wheel
A 110 granite cube slides down a 45 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest. How high above the table should the granite cube be released to give the steel cube a..
The puck in figure has a mass of .135 kg. If its original distance from the center of rotation is 31.2 cm, Determine the work put on the puck
Find out the type of mirror and how far the object is
A 6.00?kg ball is dropped from a height of 13.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg and is 6.80m in length. How high will the other ball go after the collision
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 665 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following.
A massless string is wrapped around a solid disk of mass m_1 and tied to a block of mass m_2. The disk is free to rotate on a frictionless horizontal axle.
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