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A 2Kg iron ball suspended from a vertical spring undergoes SHM with a frequency of20Hz when a block of mass M is added , the frequency of vibrition of the spring is10Hz what is the mass of the block
A mechanic pushes a 2.8 multiplied by 103 kg car from rest to a speed of v, doing 5400 J of work in the process. During this time, the car moves 20.0 m. find the horizontal force exerted on the car
Air flows over and parallel to a flat plate at 2 m=s. How long is the laminar portion of the boundary layer if the air temperature is 30-C
A parallel-plate capacitor is to be constructed by using, as a dielectric, rubber with a dielectric constant of 3.20, What is the minimum area the capacitor plates can have
An atom of a particular isotope of cobalt has an atomic mass number of 59. The addition of two electrons would make this atom electrically neutral. What is the number of electrons
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
A .580 kg glider on an air track is attached to the end of aidea spring with a force costant of 452 N/m: it undergoes simpleharmonic motion with and amplitude of 4.30 x10^-2 m.
a piano note is compared to a tuning fork vibrating at 440 Hz. Four beats per second are discerned by the piano tuner. What was the initial frequency of the piano wire
What is the magnitude of the force on an electron that is in the region between the plates at a point accurately 2.52 mm from the positive plate
A box slides down a 30 degree ramp with an acceleration of 1.20 meter/sec. squared. Determine the coefficient of kinetic friction between the box and the ramp
The brakes of a truck cause it to slow down by applying a retarding force of 3950 N to the truck over a distance of 882 m. What is the work done by this force on the truck
An electron is confined to a finite square well whose "walls" are 8.0 eV high. estimate the width of the well
The magnetic field inside an air-filled solenoid 33cm long and 3.0cm in diameter is 0.70T Approximately how much energy is stored in this field? Show work for credit.
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