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Suppose you are listening to the WKAR FM radio station on a car radio. The carrier frequency of the transmission is 90.5 MHz. Assume the RMS electric field of the wave at your location is .00368 V/m. In the calculations,
(A) Calculate the mean Poynting vector at your location.
(B) Calculate the mean energy flux, in W/m2.
(C) Calculate the amplitude of oscillation of the magnetic field.
(D) Calculate the amplitude of oscillation of the electric field.
(E) Calculate the wavelength of the carrier wave.
A sphere of radius r =34.5 cm and massm = 1.80 kg starts from rest and rolls without slipping down a 30.0? incline that is 10.0 m long. Calculate its translational speed when it reaches the bottom
A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. What is the total rate of heat transfer through the cubes
Calculate the linear acceleration of a car, the 0.310 m radius tires of which have an angular acceleration of 15.0 rad/s2. Assume no slippage. What is the final velocity of the car
The distance between the electron and proton in a hydrogen atom is 5.3 x10-11 m. Find the speed of the electron as it orbits the proton
What is the size of the static friction force on the cabinet when the bed is tilted at 20o? At what angle will the file cabinet begin to slide if the coefficient of static friction of steel on steel is Ms= 0.80 and the coefficient of kinetic frict..
a 15kg block is accelerated at 2.4m/s^2 up a frictionless plane inclined at 5 degrees to the horizontal, wth the speed increasing from 10m/s to 35m/s. what is the change in the blocks mechanical energy
Two capacitors (C1=1.00 ?F and C2=2.00 ?F) are charged with Q1=3.00 ?C on the positive plate of capacitor 1 and Q2=3.00 ?C on the positive plate of capacitor 2, the total charge on the positive plate of capacitor 1
Two students perform an experiment with a train and a ball. Michelle rides on a flatcar pulled at 8.35 m/s by a train ona straight, horizontal track. What was the initial speed of ball as seen by Gary
Two parallel plates are charged to a voltage of 50V. If the separation between the plates is 0.05m, what is the electric field between them?
A pitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 30.0 m/s. The bat does Wnc = 60.0 J of work on the ball in hitting it. determine the speed of the ball after the ball leaves the bat
What is the CD's moment of inertia for rotation about a perpendicular axis by the edge of the disk.
A coiled telephone cord forms a spiral with 56 turns, a diameter of 1.30 cm, and an unstretched length of 60.0 cm. Determine the self-inductance of one conductor in the unstretched cord.
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