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A steel wire in a piano has a length of 0.5000 m and a mass of 3.600 10-3 kg. To what tension must this wire be stretched so that the fundamental vibration corresponds to middle C (fC = 261.6 Hz on the chromatic musical scale)?
A certain telescope has an objective of focal length 1580cm. If the Moon is used as an object, a 1.4 cm long image formed by objective corresponds to what distance, in miles, on the Moon? Suppose 3.8 multiplied by 108 m for the Earth-Moon distance..
Compute the distance of two point's p1 and p2 in the x-y plane with the following Cartesian coordinates: p1= (-5m, +8m), p2= (+3m, +2m). Draw the position vectors into appropriate-points.
question1visualize a crystal that exploits for binding coulomb attraction of the positive andnbspnegative ions of the
a infinite long cylinders symmetric current distribution with radius r and a total current i gt 0. the distributions
Unpolarized light passes through five successive Polaroid sheets, What is the intensity of the transmitted beam
A 15nC charge is moved from a point where V= 210V to a point where V=-30V. How much work is done by the force that moves the charge
A convex mirror has a radius of curvature whose magnitude is 59cm. The mirror is positioned on a horizontal optical bench with its front surface at 0cm. A 11.0cm long fluorescent lamp oriented vertically is placed at +106cm.
Energy is released during a nuclear reaction due to aconversion between mass and energy. how much energy is released
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 16.4 rad/s. What is the angular speed of the wheel
Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation, What is the radius (in cm) of coil 2
A 0.25mm thick and 5mm wide conductor carries a current of 1.8A.when placed in the presence ot a 0.75T magnetic field the measured Hall voltage is 3.6mV.What is the drift velocity (in mm/s)of the electrons in the conductor?
An object is placed in front of a converging lens in such a position that the lens (f = 11.6 cm) produces a real image located 22.9 cm from the lens.
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