In a liquid metal fbr, no neutron moderation is desired and sodium is used as a coolant to minimize fission-nutron thermalization. how many scatters with sodium, on average, would it take for 2 mev neutron to reach an average thermal energy of 0.025 ev

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

The mini-refrigerator fire was most likely caused by what type of wiring?