An alpha particle with kinetic energy 14.0 MeV makes a collision with a lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude L=(p0)b, where p0 is the magnitude of the initial linear momentum of the alpha particle and b = 1.40×10^-12 m. (Assume that the lead nucleus remains stationary and that it may be treated as a point charge. The atomic number of lead is 82. The alpha particle is a helium nucleus, with atomic number 2.)

Rutheford successfully used classical mechanics to account for the scattering pattern of alphaparticles by heavy nuclei: he treated the alphaparticle as a point mass that follows a hyperbolic trajectory under the repulsion of a ﬁxed point nucleus. But the de Broglie view of the wave nature of particles raises some awkward qu

The nucleus of the polonium isotope 214Po (mass 214 u) is radioactive and decays by emitting an alphaparticle (a helium nucleuswith mass 4 u). Laboratory experiments measure the speed of the alphaparticle to be 1.59*10^7 m/s . Assuming the polonium nucleus was initially at rest, what is the recoil velocity of the nucleus that

An atomic nucleus of mass m traveling with speed v collides elastically with a target particle of mass 2m (initially at rest) and is scattered at 90 degree;. a) at what angle does the target particle move after the collision? b) what are the final speeds of the two particles? c) what fraction of the initial kinetic energy is tr

Rutherford observed that an alphaparticle (Q1 = 2 x 1.6 x 10^-19 coulomb) having a kinetic energy of 7.68 x 10 ^6 electron volts (7.68 x 10^6 x 1.6 x 10^-19 joule) rebounds backward in a head on collisionwith a gold nucleus (Q2 = 79 x 1.6 x 10^-19 coulomb).
a. What is the distance of closest approach where the electrostatic p

In a Rutherford scattering experiment, an alphaparticle (charge = +2e) heads directly toward a gold nucleus (charge = +79e). The alphaparticle has a kinetic energy of 5.0 MeV when very far (r to infinity) from the nucleus. Assuming the gold nucleus to be fixed in space, determine the distance of the closest approach. Use co

A certain hypothetical atom contains 68 protons and 87 neutrons in its nucleus and has an atomic mass of 154.2 atomic mass units, or amu (an amu is approximately 1.66 * 10^-27 kg). How many protons and how many neutrons will it end up with if it undergoes an alpha decay? How many if it undergoes a beta decay? How many if it unde

Uranium 238 can absorb a neutron and fission into two pieces. Identify the nucleus missing the the reaction in the attached file.
Describe the resultant nucleus in each of the following reactions:
(see attachment for reactions)
What was Louis de Broglie's main contribution to quantum theory?

A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to rebound at an angle of 43° from the neutron's initial direction. The neutron's initial speed is 6.6 x 10^5 m/s.
Determine the angle at which the neutron rebounds, measured

An alphaparticle (the nucleus of a helium atom) has a mass of 6.64x10-27kg and a charge of +2e. What are the (a)magnitude and (b)direction of the electric field that will balance the gravitational force on the particle?
I need to know the step by step setup and answer for this problem given the above information. thank you