Physics, 05.11.2019 04:31 Alayna1037
The beryllium isotope 4be is unstable and decays into two α particles (helium nuclei of mass 6.68 × 10^−27 kg) with the release of 1.5 × 10^−14 j of energy. determine the velocities of the two α particles that arise from the decay of a 4be nucleus at rest, assuming that all the energy appears as kinetic energy of the particles. answer in units of m/s.
Answers: 1
Physics, 21.06.2019 23:20, stormserena
The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.
Answers: 3
Physics, 22.06.2019 10:00, autumnskye1
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
The beryllium isotope 4be is unstable and decays into two α particles (helium nuclei of mass 6.68 ×...
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