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An FM transmitter delivers 30 KW into a 50 ohm antenna. THe frequency swing from 91.425 Mhz to 91.575 Mhz occurs at a rate of 10,000 times per second and this is achieved by applying a 3V peak intelligence signal to the modulator's input. Calculate the modulation index, the sensitivity of the transmitter's modulator and write the equation of the FM signal.
An 825-kg space vehicle is circling Earth in a circular orbit with a radius of 10,300 km. How much energy is required to accomplish this
The rotor in a certain electric motor is a flat, rectangular coil with 87 turns of wire and dimensions 2.33 cm by 3.88 cm. Find the maximum torque acting on the rotor
An inexperienced hunter shoots at a squirrel sitting in a tree. The squirrel is sitting on a branch that is 22 m above the gun barrel, Write the initial velocity of the bullet in vector form
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 49.2 J and a maximum displacement from equilibrium of 0.280 m.
A loudspeaker at a rock concert generates 10-2 W/m2 at 22.0 m at a frequency of 1.0 kHz. Assume that the speaker spreads its energy uniformly in three dimensions. What is the total acoustic power output of the speaker
An electron moves with speed 700 m/s. Entered uniform E and B field on straight path. E points down and into page. E B and v are perpendicular
A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below, She drops a stone from rest in an attempt to hit the raft, Find the speed of the raft
If light enters the window from outside at 23.0° to the normal, at what angle to normal does it exit the window on the inside.
A copper wire has a square cross section 2.5 mm on a side. The wire is 3.2 m long and carries a current of 4.6 A. Find the magnitude of the current density in the wire
An apartment has a living room whose dimensions are 2.8 m x 5.1 m x 5.6 m. what is the mass (in grams) of the air
A circular wire loop, with a single turn, has a radius of 14.0 cm. The loop is in a magnetic field that is decreasing at the rate of 0.500 T/s. determine the magnitude of the emf induced in the loop
As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. h is 0.54 m and d is 8.0 m. Assume that the bullet does not slow down as it passes through the window. Evaluate the Distance H
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