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For the wire arrangement in the figure, a = 12.9 cm and b = 17.3 cm. The current in the long straight wire is given by i = 5.86t2 - 13.1t, where i is in amperes and t is in seconds.
(a) Find the emf in volts in the square loop at t = 4.38 s.
(b) What is the direction of the induced current in the loop?
A small block with mass 0.0525kg slides in a vertical circle of radius 0.0750m on the inside of a circular track. What is the magnitude of the normal force that the track exerts on the block when it is at the top of its path
What is the work done on the man by the escalator
A singly charged positive ion has a mass of 2.37 10-26 kg. After being accelerated through a potential difference of 246 V, Calculate the radius of the path of the ion in the field
Two converging lenses, A by a focal length of +2.0 cm and B with a focal length of +5.0 cm, are placed 14cm apart. An object is placed 3.0 cm to the left of lens A. Utilize graphical methods to scale and construct the ray diagram with a measurement o..
a two 69 g ice cubes are dropped into 234 g of water in a thermally insulated container. if the water is initially at
A transmission line is made of a core of copper surrounded by a concentric circular sheath of steel to give it strength. The copper core is 1.0 cm in diameter and the tightly fitting sheath has an outer diameter of 2.0 cm.
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser pointer (λ=680nm) through the slit onto a screen 5.5 m away, a diffraction pattern appears. The bright band in the center of t..
Two light bulbs are each connected to a voltage of 120 V. One has a power of 25 W, the other 100 W. Which bulb more current
We have heard of simple toy models of the Universe that were studied by Einstein, de Sitter, and Friedman. If our Universe was 100,000 times denser than it actually is, what fate would the toy-model predict, a Big Crunch, Eternal Expansion, or a B..
electronic devices are usually enclosed in metal boxes, onefunction of the box is to shield the inside components fromexternal electric fields. how does this shielding work
A 1000 kg rocket sled at rest on level frictionless rails is loadedwith 25kg of propellent. What average force is experienced by the rocket during the burn
In a uniform electric field of magnitude E, the field lines cross through a rectangle of area A at an angle of 79.0° with respect to the plane of the rectangle. What is the magnitude of the flux through the rectangle
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