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A circular loop of radius 10 cm and three long straight wires carry currents of I1= 50A, I2 = 80A, I3= 90A, and I4= 70A, and respectively, as shown. Each straight wire is 20 cm from the center of the loop. What is the direction and magnitude of the force exerted on an additional wire (not pictured) with length 0.2 m and carrying current of 40 A into the page which is located at the center of the loop?
a 130-m-wide river flows due east at a uniform speed of 4.3 ms. a boat with a speed of 7.3 ms relative to the water
In a movie, Tarzan evades his captors by hiding underwater for many minutes while breathing through a long, thin reed. calculate the deepest he could have been
A Fabry-Perot interferometer with fixed plate spacing t = 1.50mm is used to examine filtered light from a helium lamp, with wavelength lambda = 587.56nm. The plates have reflectance R = 0.950. What is the free spectral range (in nm) for this spacin..
a sealed container contains 8 moles of radon gas at stp. estimate the number of radon atoms having speeds in the range
The current density inside a long, solid, cylindrical wire of radius a is in the direction of the central axis and its magnitude varies with radial distance r from the axis according to J = br2, where b is a positive constant.
Suppose height of a person is 1.65 m. Consider a cylindrical segment of a bloodvessel 2.00 cm long and 1.50 mm in diameter. What additional outward force would such a vessel need
The electric field of a capacitor remains unchanged, if the plates change their separation, but the charges remain the same. Show with equations the new energy of the capacitor relative to the initial energy, if the separation is doubled.
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to twice her weight as she goes through the dip.
q1. two 75.0 w 120 rm v light bulbs are wired in series then the combination is connected to a 230 v supply. how much
A wrecking ball (weight = 4400 N)is supported by a boom, which might be assumed to be uniform and has a weight of 3000 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
The maximum gauge pressure in a hydraulic lift is 16.1 atm. Determine the largest size vehicle it can lift if the diameter of the output line is 32.4 cm
A beam of polarized light of intensity26.0 W/m2 passes during a polarizing sheet. What is the electric field amplitude of the transmitted beam?
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