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One of the waste products of a nuclear reactor is plutonium-239 (239Pu). This nucleus is radioactive and decays by splitting into a helium-4 nucleus and a uranium-235 nucleus
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- In a laboratory experiment, an electron with a kinetic energy of 50.5 keV is shot toward another electron initially at rest (Fig. P11.50). (1 eV = 1.602 1019 J) The collision is elastic. The initially moving electron is deflected by the collision. a. Is it possible for the initially stationary electron to remain at rest after the collision? Explain. b. The initially moving electron is detected at an angle of 40.0 from its original path. What is the speed of each electron after the collision? FIGURE P11.50arrow_forwardA particle of mass m moving along the x-axis with a velocity component +u collides head-on and sticks to a particle of mass m/3 moving along the x-axis with the velocity component −u. What is the mass M of the resulting particle?arrow_forwardRank the following quantities of energy from largest to smallest. State if any are equal. (a) the absolute value of the average potential energy of the SunEarth system (b) the average kinetic energy of the Earth in its orbital motion relative to the Sun (c) the absolute value of the total energy of the SunEarth systemarrow_forward
- A particle has a momentum of magnitude 40.0 kg m/s and a kinetic energy of 3.40 102 J. a. What is the mass of the particle? b. What is the speed of the particle?arrow_forwardThis problem gives some idea of the magnitude of the energy yield of a small tactical bomb. Assume that half the energy of a 1.00kT nuclear depth charge set off under an aircraft carrier goes into lifting it out of the water—that is, into gravitational potential energy. How high is the carrier lifted if its mass is 90,000 tons?arrow_forwardArailroad freight car of mass 2.84x 10ª kg collides with a stationary caboose car. They couple together, and 36.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose. Number 10200 Units kgarrow_forward
- A Vulcan spaceship has a mass of 6.50 × 104 kg and a Romulan spaceship is twice as massive. Both have engines that generate the same total force of 9.50 × 106 N. If each spaceship fires its engine for the same amount of time, starting from rest and ignoring any change in mass due to whatever is expelled by the engines, calculate the energy of the Vulcan spaceship if the engines are fired for 102 s.arrow_forwardA uranium-238 nucleus undergoes a radioactive decay, 238 U 234Th + 4He. The masses are approximately 238, 234 and 4 u, where u = the atomic mass unit. The U nucleus is initially at rest. Suppose the He nucleus has speed v. Then what is the kinetic energy of the Th nucleus? Parameters: ] u = 1.66 x 10-27 kg; v = 9.000×106 m/s. (in J) A: 2.942x10-15 B: 3.678x10-15 OC: 4.597x10-15 D: 5.746x10-15 OE: 7.183x10-15 F: 8.978x10-15 OG: 1.122x10-14 OH: 1.403x10-14arrow_forwardThere are two radioactive elements, elements A and B. Element A decays into element B with a decay constant of 8/yr, and element B decays into the nonradioactive isotope of element C with a decay constant of 7/yr. An initial mass of 3 kg of element A is put into a nonradioactive container, with no other source of elements A, B, and C. How much of each of the three elements is in the container after t yr? (The decay constant is the constant of proportionality in the statement that the rate of loss of mass of the element at any time is proportional to the mass of the element at that time.) Write the equation for the mass, m(t), for each element based on time. mA(t) = %3D mg (t) = mc(t) =]arrow_forward
- There are two radioactive elements, elements A and B. Element A decays into element B with a decay constant of 8/yr, and element B decays into the nonradioactive isotope of element C with a decay constant of 2/yr. An initial mass of 4 kg of element A is put into a nonradioactive container, with no other source of elements A, B, and C. How much of each of the three elements is in the container after t yr? (The decay constant is the constant of proportionality in the statement that the rate of loss of mass of the element at any time is proportional to the mass of the element at that time.) Write the equation for the mass, m(t), for each element based on time. ma (t): mg (t) = mc(t) =arrow_forwardA body has a momentum of 80 kg m/s and a kinetic energy of 275 J. Determine the mass of the body.arrow_forward6. A basketball whose mass is 0.640 kg falls from rest through a height of 5.40 m, and then bounces back. On its way up it, passes by a height of 3.35 m with a speed of 2.65 m/s. How much energy is lost during the bounce? J S S €60 X ssfűarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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