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Baseball scouts often use a radar gun to measure the speed of a pitch. One particular model of radar gun emits a microwave signal at a frequency of 10.525 GHz.
1) Obtain what will be the increase in frequency if these waves are reflected from a 95.0 mi/hr fastball headed straight towards the gun? (Note: 1 mi/hr = 0.447 m/s).
f= _________ Hz
You hold a circular loop of wire at the north magnetic pole of the Earth. Consider the magnetic flux through this loop due to the Earth's magnetic field.
A closely wound rectangular coil of 100 turns has dimensions of 20.0{\rm cm} by 50.0{\rm cm}. What is the average emf induced in the coil
a boat moves through the water with two forces acting on it. one is a 1900 n forward push by the water on the propeller
Starting from rest with an acceleration of 0.37 m/s2, he covers the same distance as the ramp does, but in one-fourth the time. Illustrate what is the speed at which the belt of the ramp is moving?
A particle of mass 4m is placed 0.91 meter from a particle of mass m. Determine where should you put a third mass M so that the net gravitational force on M due to the two masses is exactly zero
A large refracting telescope has an objective lens with focal length 0.85 m. What is the new angular magnification
Three equal point charges, each with charge 1.95 , are placed at the vertices of an equilateral triangle whose sides are of length 0.400 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
An elevator is initially moving upward at a speed of 11.64 m/s. The elevator experiences a constant downward acceleration of magnitude 4.12 m/s2 for 3.21s. Find the magnitude and direction of the elevator's finalvelocity.
An ideal toroidal solenoid has a cross-sectional area of 0.500 cm^2 , a mean radius of 15.0 cm , and 1600 turns. What is the self-inductance of this solenoid?
A single strand of wire of adjustable length is wound around the circumference of a round balloon that has a diameter of 25.0 cm, what is the magnitude of the average value of the emf induced in the loop
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
question two capacitors give an equivalent capacitance of 9.0pf when connected in parallel and an equivalent
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