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A cylindrical copper cable carries a current of 1040 A. There is a potential difference of 1.60 10-2 V between two points on the cable that are 0.37 m apart. What is the radius of the cable?
A small sphere with a mass of 3.00×10^?3g and carrying a charge of 5.20×10^?8C hangs from a thread near a very large, Find the angle of the thread
Find A (Vector potential of the Magnetic dipole) on a diagonal of a square side S and of current I at a distance Sqrt(2)S from the corner.
A second force F2 is added to F1 . The resultant of the two vectors has a magnitude of 370 newtons and points along the (a) east/ (b) west line. Find the magnitude and direction of F2.
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed, What is the magnitude of the tension in the string when the ball is at the bottom of the circle
A two-slit pattern is viewed on a screen 1.17 m from the slits. What is the width of the central bright fringe, if the third dark fringes on either side are 26.4 cm apart?
Three resistors {R1 = 12.0 ?, R2 = 18.0 ?, and R3 = 36.0 ?} are connected in parallel, and in turn connected to a 70.0 V source with an internal resistance of 1.00 ?. Determine the equivalent resistance of the combination
A rocket is launched at an angle of 52° above the horizontal with an initial speed of 103 m/s. The rocket moves for 3s along its initial line of motion with an acceleration of 32 m/s2. At this time, its engines fail and the rocket proceeds to move..
Newton's law of gravity states that the force on an object by the Earth follows an inverse square law: 0 2 E g m m F G x ? ? where G is a constant (the universal gravitational constant), How much work is done moving the object from x ? ? to x ? R
In a photoelectric effect experiment, which metal will have a higher cutoff wavelength (i.e. the wavelength above which no electrons are emitted), silver which has a work function of 4.73 eV or lead which has a work function of 4.14 eV? Explain why.
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 m/s. Estimate the velocity of the third piece? Suppose each piece has a mass of 2 kg.
An 85-g arrow is red from a bow whose string exerts a constant force of 105 N on the arrow over a distance of 75 cm. Illustrate what is the speed of the arrow as it leaves the bow?
How much energy can be stored in a capacitor with two parallel plates, each with an area of 64.0 cm2 and separated by a gap of 1.7 mm, filled with porcelain whose dielectric constant is 5.9, and holding equal and opposite charges of magnitude 370. ?C
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