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An alpha particle is a helium nucleus that consists of two protons bound with two neutrons. An alpha particle moving through a perpendicular magnetic field of 1.2 T experiences an acceleration of 2200 m/s2. What is the alpha particle's speed?
A uniform stick d = 1 m long with a total mass of 251 g is suspended vertically from a frictionless pivot at its top end. A wad of putty of mass 20 g is moving horizontally with speed v. It strikes and sticks to the stick at a distance 0.75 m from..
an automotive battery has an emf of 13.4 v. when supplying power to the starter motor the current in the battery is
An 91kg man drops from rest on adiving board 3.0m above the surface of the water and comes to rest0.55s after reaching the water. What is the net force on the diveras he is brought to rest
An object of mass m moves in a circular orbital under the influence of an harmonic oscillator potential U(r)=1/2(alpha)r^2, Determine the energy of the orbiting object
A block of unknown mass is attached to a spring of force constant5.00 N/m and undergoes simple harmonicmotion and an amplitude of 10.0 cm. Determine the maximum acceleration of the block
q1. a heavy piece of hanging sculpture is suspended by a 146.0 cm long 8.03 gm wire. when the wind blows hard the wire
The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
under what limits does the field of a uniformly charged disk match the field of a uniformly charged infinite sheet? the
A drowsy cat spots a flowerpot that sails first up and thendown past an open window. How high above the window top did the flower pot go
Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. Calculate the speed of charge B when it has reached a distance of 3.68 cm away from charge A
you have one heavy cart at 1.5kg and the lighter one at 1.0kg. neglect friction. the heavy cart starts at rest. what are the magnitude and direction of the systems momentum
1 what is the magnitude of the force on a 50 cm 0.500 m long wire carrying 15.0 a at right angles to a 0.005 t 500 g
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