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1. In what ways are electromagnetic and color charges similar and different?
2. The fact that the photon is massless makes the electromagnetic interaction one of long range. If the gluon is also massless, why is the strong color interaction also not of long range?
3. Suppose you have two dice, each of which you are going to rotate in some prescribed manner. Is the finite rotation of one die an Abelian or a non-Abelian operation? Is the choice of which die to rotate first an Abelian or a non-Abelian operation?
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
the recovery time of a hot water heater is the time required to heat all the water in the unit to the desired
A u-tube with constant cross section is partly filled with water. Engine oil of density 0.8g/cm3 is poured into the right arm (without mixing) until the water level rises 2.0cm. The length of the oil column is then.
A 1.50m long ramp is inclined at 20 degree to the horizontal. A solid ball is released from rest at the top of the ramp. Find its translational acceleration
A uniformly charged ring with radius a = 10cm carries a total electric charge Q=3microCoulombs and rotates with angular speed w = 140rad/s counterclockwise about the z-axis. Find the magnetic field at the ring's center.
An elevator has a mass of1170 kg and carries a maximum load of 786 kg. A constant frictionalforce of 4260 N retards its motion upward. Theacceleration of gravity is 9.8 m/s2 .
Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. Determine the speed of each disk after the collision
a 7.0 N force is applied horizontally on a book that weighs 20N that is resting on a tabletop. If µs=.50 between the book and table, find the force of static friction on the book
A 72.0-kg bungee jumper jumps from a bridge. She istied to a bungee cord whose unstretched length is 12.0 m, and fallsa total of 30.4 m. A.) Calculate the spring stiffness constantk of the bungee cord, assuming Hooke's law applies.B.) Calculate the m..
A 35 mm camera with interchangeable lenses is used to take a picture of a hawk that has a wing span of 1.8 m. What would be the ideal focal length of the lens used
a falling flower pot passes a 1.5 m tall window of an apartment building in a time of .16 s. from what height above the top of the window was the pot dropped
Determine the tangential and centripetal components of the net force exerted on a car (by theground) when its speed is 40 m/s, and ithas accelerated to this speed from rest in 9.1 s on a curve of radius 400 m. The car's mass is 1000 kg.
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