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1. A wire with a mass of 1.0 g/cm is placed on a horizontal surface with a coefficient of friction 0.20. The wire carries a current of 1.5 A toward the east, and moves horizontally to the north. What are the magnitude and the direction of the smallest magnetic field that enables the wire to move in this fashion?
2. The two parallel wires are perpendicular to the page and carry currents of 3.0 A and 5.0 A into the page.
Calculate the magnitude and direction of the magnetic field:
At a point midway between the wires.
At a point 20 cm above the wire carrying the 5.0 A current.
A vertical container with base area measuring 14.0 cm by 17.0 cm isbeing filled with identical pieces of candy, each witha volumeof 54.0 mm3 and a massof 0.0202 g.
Compute the scalar product V.F
The New River Gorge bridge in West Virginia is a 522 m long steel arch. How much will its length change between temperature extremes -19.4oC and 35.5oC
A converging lens of focal length 40 cm and a diverging lens of focal length 40 cm are 160 cm apart. Estimate the final image height and position
A loop of width 0.2m and length 0.8m, and resistance 200ohms is pulled through a magnetic field of 0.4 T at 0.2 m/sec. What is force necessary to pull the loop
A 0.401 kg bead can slide on a curved wire, If the wire is frictionless and the bead is released with an initial speed of 12.8 m/s in the forward direction then find the speed of the bead at B
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward), Calculate the velocity vector as a function of time
Design an audio amplifier using a JFET and a 20-volt power supply. The amplifier is to have a gain of 50
A 200 g mass attached to a horizontal spring oscillates at a frequency of 2.0 Hz . At one instant, the mass is at x= 5 cm and has v= -30 cm/s. a.Determine the period. b. Determine the amplitude. c. Determine the maximum speed. d. Determine the total ..
How much is the spring compressed?
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
A silver wire has resistivety p = 1.62x10^-8 ?m ana cross sectional area of 5.00 mm^2. what is the displacement current in the wire
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