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Two long parallel wires are separated by 3.89 mm. The current flowing in one of the wires (wire 1) is twice that in the other wire (wire 2). If the magnitude of the force on a 1.37 m length of one of the wires is 6.13 ?N, what is the value of the current in wire 2?
A parallel-plate capacitor is formed from two 3.60cm × 3.60cm electrodes spaced 2.70mm apart, What is the charge (in nC) on each electrode
A platform is rotating at an angular speed of 2.1 rad/s. A block is resting on this platform at a distance of 0.33 m from the axis. determine the smallest distance from the axis
A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.630 for red light of wavelength 690 nm. what is the angle between the two beams inside the glass
A mirror produces an image of the sun, and the image is located 0.9900 m from the mirror. What is the algebraic expression for the object distance do of the tree from the mirror
An object slides down a frictionless inclined plane. At the bottom, it has a speed of 9.80 m/s. What is the vertical height of the plane
A 2.5kg block slides along a frictionless surface at 1.6m/s. A second block, sliding at a faster 4.0m/sPh, what was the mass of the second block
Three 1.50-V cells, each with an internal resistance of 0.0500?, are connected in series to form a battery with a current of 0.850A in each cell. Find the current in the external circuit
An electric motor with a 4.7-hp output drives a machine with an efficiency of 30%. What is the energy output of the machine
A 1.9-kilogram mud ball drops from rest at a height of 18 m. If the impact between the ball and the ground lasts 0.56s, Find the final velocity of the 4.90-kg ball if the collision is elastic
Two objects of equal mass collide on a horizontal frictionless surface. What is the speed of the composite body (A + B) after the collision
A flashlight bulb with a resistance of 40 ohm is powered with a six volt battery and produces .75W power. obtain the internal resistance of the battery
Visitors at a science museum are invited to sit in a chair to right of a full-length diverging lens (f1 = -3.06 m) and observe a friend sitting in a second chair, 1.84m to the left of the lens.
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