A single alpha particle carries a kinetic energy of 6 MeV. What is the maximum amount of energy (in keV) the alpha particle may lose in a single electronic collision? Please use equations derived from (I) the principles of classical mechanics and (II) the principles of relativistic mechanics for the calculation and find whether the results are comparable.

Calculate the equivalent energy of one atom of beryllium (9.0 amu) in joules, using the conversion factors of 1 amu = 931.5 MeV and 6.25 x 10¹8 eV = 1 joule.

An electron and a positron, with a mass of 9.1 x 10-31 kilograms, annihilate each other, producing two photons. What is the approximate energy of each emerging photon? It is 0.51 Mev 2.0 MeV 4.0 MeV 1.02 MeV It cannot be determined unless the frequency of the photon is known.

Consider an object of mass 26.1 kg. Assume that it s made up of equal numbers of protons, neutrons, and electrons. How many protons does this object contain? 3.91E+27 7.81E+27 1.56E+28 O 3.12E+28

A particle of mass m, is fired at a stationary particle of mass mg, and a reaction takes place in which new particles are created out of the incident kinetic energy. Taken together, the product particles have total mass mg. The minimum kinetic energy the bombarding particle must have so as to induce the reaction is called the threshold energy. At this energy, the kinetic energy of the products is a minimum, so the fraction of the incident kinetic energy that is available to create new particles is a maximum. This condition is met when all the product particles have the same velocity and the particles have no kinetic energy of motion relative to one another. (a) By using conservation of relativistic energy and momentum and the relativistic energy-momentum relation, show that the threshold kinetic energy is [m- (m, + m,)*]c² K. min 2m, Calculate the threshold kinetic energy for each of the following reactions: (b) p + p → p + p + p + p (one of the initial protons is at rest, and…

Consider the reaction 235 U 92 1 0 148 57 87 35 La Br Element Atomic Mass (u) 235 92 U U + 1 U 0 n → U 148 57 La + 235.043923 1.008665 147.932236 86.92071119 87 35 Br + 1 (a) Write the conservation of relativistic energy equation symbolically in terms of the rest energy and the kinetic energy, setting the initial total energy to the final total energy. (Use the following as necessary: m;, mf, KE, KE, and c.) 0 (b) Using values given above, find the total mass of the initial particles (in u). n. (c) Using the values given above, find the total mass of the particles after the reaction takes place (in u). (d) Subtract the final particle mass from the initial particle mass. (Enter your answer in u.) (e) Convert the answer to part (d) to MeV, obtaining the kinetic energy of the daughter particles. Neglect the kinetic energy of the reactants. MeV

The binding energy of an electron to a proton (i.e., hydrogen atom) is 13.6 eV. The loss of mass in the formation of one atom of hydrogen is _____________ a) 2.42 X 10-35 Kg b) 3.34 X 10-35 Kg c) 4.58 X 10-35 Kg d) 5.19 X 10-35 Kg

b & c

Q 2(a)The E* particle has a rest energy of 1385 MeV and a lifetime of 2.0 x 10-23 s. What would be a typical range of outcomes of measurements of the E* rest energy? (b)A nucleus emits a gamma ray of energy 1.2 MeV from a state that has a lifetime of 2.1 ns. What is the uncertainty in the energy of the gamma ray?

We have the following nuclear reaction, 73Li + p −→ 74Be + n the neutrons are ejected at an angle of 90° relative to the original direction of the proton beam. The kinetic energy of neutrons is 1.94 MeV. (a) Calculate the Q of the nuclear reaction