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A speeder is pulling directly away and increasing his distance from a police car that is moving at 29 meter per second with respect to the ground. The radar gun in the police car emits an electromagnetic wave with a frequency of 9.00 x 109 Hertz. The wave reflects from the speeder's car and returns to the police car, where its frequency is measured to be 326 Hertz less than the emitted frequency. Obtain the speeder speed with respect to the ground.
A nuclear power plant has an electrical power output of 2000 MW and operates with an efficiency of 34%. what is the rise in temperature of the flowing water
Accelerating charges radiate electromagnetic waves. Calculate the wavelength of radiation produced by a proton in a cyclotron with a radius of 0.500 m
A block is released from the top of a frictionless incline plane as pictured above. calculate how fast it is moving at the bottom using Conservation of Energy
Two protons that are very far apart are hurled straight at each other, each with an initial kinetic energy of 0.21 MeV, What is the separation of the protons from each other
Imagine holding the above plastic block under water. When released, what is the upward acceleration of the block
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph...
From what height did the student fall? Assume that the only force acting on him throughout the collision is that as a result of the ground.
A 500 kg elevator starts from rest. It moves upward for 2.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
Find what minimum horsepower must a motor have to be able to drag a 350 kilogram block up a 15o ramp at a speed of 1.50 m/s if the coefficient of kinetic friction is 0.25
a beam of hydrogen molecules h2 is directed toward a wall at an angle of 55deg with the normal to the wall. each
A small, 300g cart is moving at 1.90m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
For a damped oscillator with a mass of 180 g, a spring constant 58 N/m and a damping coefficient of 60g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 26 cycles.
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