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A particle of unknown mass M decays into two particles of known masses m1 =0.5 GeV/c2 and m2 = 1GeV/c2, whose moment are measured to bep1 = 2GeV/c along the positive y axis and p2= 1.5 GeV/c along the positive x axis. Calculate the initial particle mass M and its speed.
a tennis ball of mass mt is held just above a basketball of mass mb and radius rb. with their centers vertically
a diffraction grating has 4588 linescm. light that contains all wavelengths between 431 and 646 nm shines on the
A body of mass 1.8 kg makes an elastic collision with another body at rest and continues to move in the original direction but with 1/7 of its original speed. What is the speed of the two-body center of mass
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633nm, What is the average energy density in the laser beam
in what way is the npv consistent with the principle of shareholder wealth maximization? what happens to the value of a
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..
A charge 2q is located at the origin. A charge -3q is located at x = d, y = 0, z = 0. Where is the electric field zero
A container is filled with water to a depth of 48.3 cm. on top ofthe water floats a 24.4 cm thick layer of oil with a density of 862kg/m3. what is the absolute pressure at the surface of the water? the acceleration of gravity is 9.81 m/s2.
a 0.060 kg tennis ball moving with a speed of 7.60 ms has a head-on collision with a 0.080 kg ball initially moving in
Two long straight wires carrying the same current I and separated by a distance r exert a force F on each other. What will be the force between two wires
stan accelerates from a standing start at 2 ms2 and one second later kathy accelerates from a standing start at the
A cannonball (20kg) is shot from a cannon(200kg) with a velocity of 20m/s. what is the backwards velocity of the cannon
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