A photon with an energy of E? = 2.090 0 GeV creates a proton-antiproton pair in which the proton has a kinetic energy of 95.0 MeV. What is the kinetic energy of the antiproton? (mpc2 = 938.3 MeV)
118.4 MeV
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The allowed values for the magnetic quantum number, m , are from m = -? to +?
Indicate whether the statement is true or false
Simon (Ref. 24) says "We have in our ... libraries the technology to feed, clothe, and supply energy to an ever-growing population for the next 7 billion years." Is this a realistic view?
What will be an ideal response?
Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. When they hit the ground
A) both of them will have the same kinetic energy. B) the heavier one will have twice the kinetic energy of the lighter one. C) the heavier one will have four times the kinetic energy of the lighter one. D) the heavier one will have times the kinetic energy of the lighter one.
A 10-kg rock and a 20-kg rock are dropped at the same time and there is no air. If the 10-kg rock falls with acceleration a, what is the acceleration of the 20-kg rock?
A) 4a B) 2a C) a D) a/2 E) a/4