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A plane polarized EM wave propagates through a polymer. Such waves obey a similar wave equation to that found for free space. The wave has a magnetic field vector, ??=[(?1.2??)?sin(??y+??t)] ?T, with frequency ??=7.61×10^(14) Hz and wave number ??=1.61× 10^7 ???1. Find the speed of the wave, the electric field vector, and the direction of propagation of the wave.
What is the resistance of a lightbulb that uses an average power of 40.0 W when connected to a 60.0-Hz power source having a maximum voltage of 132 V
The acceleration of a certain simple harmonic oscillator is given by a = - (15.8 m/s2) cos (2.51t). What is the amplitude of simple harmonic motion.
At a certain location, the Earth's magnetic field has a magnitude of 6.2×10?5T, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 130cm by 72cm
Light of wavelength 5.70 x 102nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
An unstrained horizontal spring has a length of 0.25 m and a spring constant of 180 N/m. Two small charged objects are attached to this spring, one at each end.
Calculate the first-excited state energy (in eV) for an electron in a box (an infinite well) having a width of 0.050 nm
A 1.0-kg copper rod rests on 2 horizontal rails 1.0 m apart and carries a current of 50 A from 1 rail to the other.the coefficient of static friction is 0.60.What is the smallest magnetic field (vertical) that would cause the bar to slide with accele..
Consider a particle with positive charge q = 8.00 * 10^18 C moves with velocity v=(4i + 2j - k) m/s through a region, calculate the total force on the moving particle
A cord is used to lower verically a block of mass M a distance d at a constand downward acceleration of g/4. Find the work done by the cord on the block
A parallel-plate air capacitor has a capacitance of 300 {\rm pF} and a charge of magnitude 0.250 \mu {\rm C} on each plate. The plates are 0.500 {\rm mm} apart. What is the surface charge density on each plate
A ball is thrown off a cliff, 100m tall, with an initial velocity of 5m/s, How long before the ball hits the ground
A car moves horizontally with a constant acceleration of 3 m/s2. A ball is suspended by a string from the ceiling of the car; What angle does the string make with the vertical
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