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two forces whose resultant is 80N are perpendicular to each other,if one of them makes an angle 60degree with resultant.calculate its magnitude.
A double-slit experiment using light of wavelength 580.nm produces an interference pattern on a screen. The slit separation is 1.39?10?2mm. find the distance between the slits and the screen
An AC voltage with an amplitude of 120 Volt is applied to a series combination of a 166 μF capacitor, a 130 mH inductor, and a 17.9 ohm resistor. Estimate the power factor at this frequency
Tendons are strong elastic fibers that attach muscles to bones. To a reasonable approximation, they obey Hooke's law. Find the force constant of this tendon in N/m
An electric field of 7.90 x10^5 V/m is desired between two parallel plates, each of area 41 cm2 and separated by 2.45 mm of air. What charge should be on each plate.
A copper beaker of mass 0.20 kg contains 0.10 kg of water at 20.0degree C. A block of silver of mass 100 g at 90.0 degree C is added to the beaker of water. The entire system is thermally insulated from the surroundings, (specific heats- copper: 3..
What is the energy range (in joules) of photons of wavelength 400nm to 760nm
A pipe 0.0178 m in diameter and 0.16 m long can transfer 3726 J of heat per second with a temperature difference across the ends of 5?C. Compare this performance with the heat transfer of a solid silver bar of the same di- mensions by finding the rat..
Three capacitors all have the same capacitance. When they are wired in series, the equivalent capacitance is 57 ?F. what would the charge on the capacitors be
Three point charges are arranged therefore that two of them are inside a spherical Gaussian surface of radius 20 centimeter. Obtain the net electric flux through spherical Gaussian Surface
A football is kicked straight up into the air; it hits the ground 5.4 s later. What was the greatest height reached with the ball? Suppose it is kicked from ground level. With what speed did it leave the kicker's foot?
A very slippery ice cube slides in a vertical plane around the inside of a smooth, 20 cm diameter horizontal pipe. Find an algebraic expression for the ice cube's speed
The energy of the 2s state of some element is -5.691eV. Compute the value of Zeff for this state. The energy of the 4s state of some element is-4.339 eV. Compute the value of Zeff for this state.
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