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Two 1.0M-Hz radio antennas emitting in-phase are separated by 600m along a north-south line. A radio receiver placed 2.0 km east is equidistant from both the transmitting antennas and picks up a fairly strong signal. How far north should that receiver by moved if it is again to detect a signal nearly as strong. non-paraxial solution, so no small-angle assumption. Also, assume antenna diameters are arbitrarily small emitting spherical waves.
The space shuttle releases a satellite into a circular orbit785 kilometer above the Earth. Find how fast must the shuttle be moving (relative to Earth) when the release occurs
In a model AC generator, a 501 turnrect angular coil 10.0 cm by23 cm rotates at 123 rev/min in a uniform magnetic field of0.6 T. What is the maximum emf induced in the coil?
An electron approaches a potential barrier10 eV high and 0.30 nm wide. If the electron has a 2.0 percentprobability of tunneling through the barrier, what must its energy be
An arrow is shot 30 degrees above horizontal with an initialvelocity of 49 meters/second. What is the maximum height the arrow reaches.
Two long, coaxial cylindrical shell conductors carry equal and opposite charges. The inner shell has radius "a" and charge +q, and the outer shell had radius "b" and charge -q. Find the potential difference between the shells
You throw a 1 kg rock down a 5m-deep wishing well. It hits the water with a velocity of 7.5 m/s. How much work did air resistance do
The microwaves in a microwave oven are produced in a special tube called a magnetron. what is the maximum velocity the electrons may have
A negative lens has a focal length of -24 cm. An object is located 8 cm from the lens. How far from the lens is the image
Suppose that a particle accelerator is used to move two beams of particles in opposite directions, what is the magnitude of the average current in this region
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.703 A) sin [(257 rad/s)t]. Determine the resistance of the bulb's filament
Two rings of radius 5 cm are 20 cm apart and concentric with a common horizontal x-axis. The ring on the left carries a uniformly distributed charge of +35 nC, and the ring on the right carries a uniformly distributed charge of -35 nC. What is the e..
A 1500 kilogram wrecking ball hangs from a 20 meter long cable. Determine by how much has the gravitational potential energy of the ball changed
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