[note that other equivalent and commonly used shortcut terms for this task are: (a) "normalise v(x,0)", which actually refers to normalising the probability density 1 (2, 0)); or (b) "find a such that the wavefunction is normalised”.] (b) using this initial state, find (x, t) and the probability density v(3, 0); is the latter corre- sponds to a stationary state? (c) what is the expectation value of the energy for the wave function (c, t); how does it compare with ej and e2? (d) if i make a measurement of the energy of the particle, what are the possible values that i might get, and what is the probability of getting each of them? assume that at time t = 0, the wave function of a particle in an infinite square well potential (i. e., v(x) = 0 if 0 < x

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

friction

explanation:

they us to move forward and backwards