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String field theory (in which string theory undergoes "second quantization") seems to reside in the backwaters of discussions of string theory. What does second quantization mean in the context of a theory that doesn't have Feynman diagrams with point-like vertices? What would a creation or annihilation operator do in the context of string field theory? Does string field theory provide a context in which (a) certain quantities are more easily calculated or (b) certain concepts become less opaque?
question a 2.1 kg body oscillates in shm on a spring that when extended 2.3 mm from its equilibrium position has an 10
An air-hockey pucks floats across the table and bumps into a second puck, initially at rest. The first puck - mass 0.0250 kg - is moving initially due east at 5.50 m/s. Find the speeds of both pucks after the bump
When a test charge q0 = 6 nC is placed at the origin, it experiences a force of 8 ? 10-4 N in the positive y direction. What is the electric field at the origin
Compute the momentum, total energy and kinetic energy of a proton moving with a velocity v=0.99c relative to the laboratory frame
What is the net force exerted on the skier, assuming his acceleration is constant.
A 7.8 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.63 T pointing up. What is the average induced emf in the coil
Rocio strikes a .058kg golf ball with a force of 272N and gives ita velocity of 62.0m/s. how long was Ricio club in contact with the ball
What's the difference between a rotational and a circular motion and Why does vertically falling rain make slanted streaks on the side windows of a moving auto
a typical co2 laser produces infrared radiation in the range of 9000-11000 nm wavelength in pulses of 5 j and 500 ns
A 5.95kg object is thrown 17.10m/s at a 30 degree angle andcollides head on at its peak with a 14.5kg object fired at 27degrees which Is also at its peak. At what velocity was the 14.5kg object fired
a particle is moving in a simple harmonic oscillator potential vx kx22 x lt 0 but with infinite potential barrier at x
A uniform rod of mass 2.55×10?2kg and length 0.440m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the system at the instant when the rings reach the ends of the rod
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