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A annular disk (a disk with a hole in it) has an inside radius a and an outside radius b and a uniform surface charge density sigma. What is the potential at a point a perpendicular distance z-naught from the center?
The clarinet is well modeled as a cylindrical pipe that is open at one end and closed at the other. Find the wavelength and frequency of the third normal mode of vibration of a clarinet\'s air column with effective length of 39.7 cm.
A leather ball of circumference 75.1 cm and mass 583 g is forced to the bottom of a swimming pool and then released. Calculate the buoyant force on the ball
two particles have a mass of 20 kg and 150 kg respectively. if they are 800m apart determine the force of gravity
Can someone describe the physics behind this problem, the forces involved are confusing A bicyclist coasts down a 6 degree hill at a steady speed of 4.0 m/s. Assuming a total mass of 75kg, what should be the cyclist's power output to climb the simila..
An aircraft with a mass of 951 kilogram accelerates from 0 to 99 m/s in 7.3 s, find at which time the aircraft launches
A 0.30 kg mass, attached to the end of a 0.60 m string, iswhirled around in a circular horizontal path. what maximum speed can the mass have
A pump is required to lift a mass of 770 kg of water per minute from a well of depth 14.2 m and eject it with a speed of 17.5 m/s. How much kinetic energy does the pump give the ejected water
a 5 kg mass is attached to the end of a 1.0-m string. The system is whirled in a horizontal circular path. What is the maximum speed of the mass if the string is not to break
A narrow beam of 400-keV photons is incident normally on a 2 mm iron liner. What fraction of the photons has an interaction in the liner? What thickness of Fe is needed to reduce the fraction of photons that are transmitted without interaction to 10%..
If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact?
When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11..
In some places, insect "zappers," with their blue lights, are a familiar sight on a summer's night. how many turns are in the secondary coil
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