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A plane polarized electrodynamics wave travelling in a dielectric medium of refractive index 'n' is reflected at normal incidence from the surface of a conductor.find the phase change undergone by its electric vector if the refractive index of the conductor is n2=n(1+ip)
A 2 kg object is dropped and falls 20m, at which point it is caught and a net force of 100N is exerted on the object. How much time did the object take to fall
What is the total negative charge, in coulombs, of all the electrons in a small 1.05{\rm g} sphere of carbon? One mole of C is 12.0{\rm g} , and each atom contains 6 protons and 6 electrons.
You have a 10.9 m straight wire carrying a 9.89 A current. What is the magnitude of the force on the wire when it is in a 0.83 T magnetic field perpendicular to the wire
you need a capacitance of 40 microf but you dont happen to have a 40 microf capacitor. you do have a 56 microf
A subway train starts from rest at a station and accelerates at a rate of 1.69m/s2 for 14.2s. What is the total distance traveled
An alpha particle (the nucleus of a helium atom, with charge +2e and a mass four times that of a proton) and an antiproton (which has the same mass as a proton but charge -e) are released from rest a great distance apart.
A cord of length 1.3 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 11 N. (a) What is the frequency of the fundamental oscillation? Hz (b) What tension is required if the n = 3 mode has a frequency of 0.60 kHz? N
ow does this change in amplitude affect the wave's frequency.
A uniform 4.50 kg square solid wooden gate 2.00 m on all side hangs vertically from a frictionless pivot at the center of its upper edge. A 1.00 kg raven flying horizontally at 4.50 m/s flies into this door at its center and bounces back at 2.00 m/s ..
Five tons of a mixture consisting of paper and other compostable materials has a moisture content of 7 percent. Determine how many tons of water or sludge must be added to the solids to achieve this moisture concentration in the compost pile
A betatron is a charged particle accelerator that works by generating an induced electric field to accelerate the charged particles. What is the amplitude of the oscillating electric field at a distance 0.62 m from the axis of the betatron
A 15 g rifle bullet traveling 205 m/s buries itself in a 3.4 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of the pendulum's displacement.
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