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A electromagnetic monophonic wave of frequency 600*10^12Hz (green light ), propagating in the positive x direction in a vacuum, has an electric feild amplitude of 42.42 V/m. The wave is linearly polarized such that the plane vibration of the electric feild is at 45degrees to the xz plane. Write expressions of E and B.
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
An initially stationary box of sand is to be pulled across a floor by means of a cable in which the tension should not exceed 754 N. what is the weight of the sand and box in that situation
A horizontal laser beam of wavelength 632.8 nm has a circular cross section 2.00 mm in diameter. Find the required width of the aperture
A resting bat sends out ultrasonic waves at 50 kHz towards an insect that is approaching the bat with a speed of 20.0 m/s. What is the frequency of waves heard by the insect
An access door in a ceiling is 0.91m square, has a mass of 11kg, what are the magnitudes of the forces on the catch and the hinge from the door
Consider light with an initial intensity, I0. Calculate the fraction of light that gets through the following setups: (a) A single polarizer, (b) Two polarizers with their transmission axes 30 degrees apart
At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. How fast will the payload be traveling when it reaches the bottom of the shaft
A parallel-plate capacitor has a capacitance C0. A second parallel-plate capacitor has plates with twice the area and twice the separation. What is the capacitance of the second capacitor
At a coal-burning power plant a steam turbine is operated with a power output of 548 MW. At what rate must heat be supplied to the power plant by burning coal
A mass m1 is hanging from a light cord which is strung over a pulley of moment of inertia I and radius R0, What are the tensions in each part of the light cord
q1. a small car of mass 831 kg is parked at the back a small truck of mass 1553 kg on a level road. the brakes of both
Our closest stellar neighbor , alfa-centauri , is 4.3 light years away.it has been suggested that TV programs from our planet have reached this star and may have been viewed by the hypothetical inhabitants of a hypothetical planet orbiting this st..
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