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A highway patrolmen sends a 1.5X10^9 Hz radar beam toward a speeding car. The reflected wave is lower in frequency by 150 Hz ( this is the beat frequency). What is the speed of the vehicle?
A sledge loaded with bricks has a total mass of 17.7 kg and is pulled at constant speed by a rope inclined at 20.9° above the horizontal. What is the mechanical energy lost due to friction
a pipe tapers from a diameter of 0.5 m at the inlet to a diameter of 0.25 m at the outlet and turns by an angle of 45
A mass oscillates up and down on a vertical spring with anamplitude of 6 cm and a period of 2 s. What total distance does the mass travel in 14 seconds
A magnifying glass uses a converging lens with a focal length of 14.5 cm. It produces a virtual, How far is the object from the lens
A spring (k 200 N/m) is fixed at the top of a frictionless plane inclined at theta = 40 degree. A 1 kg block is projected up the plane, from an initial position that is distant d=0.6 m from the end of the relaxed spring with an initial kinetic ener..
a motorcycle rider starts from rest and goes 3.75 rad counterclockwise around a circular track in 12.3 seconds.
A cylinder contains 3.5 {\rm L} of oxygen at350 {\rm K} and 2.4 {\rm atm}. The gas is heated, causing a piston in the cylinder to move outward. The heating reasons the temperature to rise to 610 {\rm K} and the volume of the cylinder to increase to 9..
you are provided with an ideal op amp and three 10-kq resistors. using series and parallel resistor combinations how
A 2.00 kg block is placed against a spring on a frictionless30.0 degree incline. What is the change in the gravitational potential energyof the block-Earth system
What is the speed of a beam of electrons when the simultaneous influence of an electric field of 1.48×104V/m and a magnetic field of 4.66×10?3T, What is the period of the orbit
An understanding of Ohm's Law is the basis for understanding circuits. This law is simply a statement that in order to increase the current passing through a device the voltage driving the current must increase proportionally. The constant of proport..
The depth of an ocean is approximately 4 kilometer. Find how long does it take a signal sent straight down to come back
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