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Nuclear Forces

Nuclear forces are the forces between two or more nucleons. It is the force which binds protons and neutrons into the atomic nuclei. Due to the energy released by the binding of the proton and neutrons, the mass of nuclei will be less than the total mass of the protons and neutrons combined which form them. This release of energy is used in nuclear power and nuclear weapons.

Forces between nucleons at a distance of 1 femtometer between the centers are very attractive; however the attractiveness decreases from distances beyond 2.5 femtometers. When the centers of the nucleons are 0.7 femtometers or less apart the force is repulsive. This is responsible for the physical size of nuclei since the nucleons can come no closer than the force allows. 

The nuclear force is a residual effect of the strong force or strong interactions. It is the attractive force that binds quarks together to form the nucleons. The strong force is only sensed from composite particle made up of quarks to form the nucleons which is called a hadron. This powerful force is mediated by a particle called a gluon, which is a type of gauge boson. Gluons hold quarks together with a force like that of an electric charge, but a far greater power.

Which material would have the strongest compressive strength?

1) Which material would have the strongest compressive strength? i) egg shell 11) a ream of paper 111) pile of dry sand iv) rope v)shopping bag 2) Hydrogen is to a proton as helium is to. a) an alpha particle. b) a beta particle c) a gamma particle d) an electron e) a neutron 3) A high -energy Physic

Entropy of a diatomic ideal gas

Explain how you could find the entropy of a diatomic ideal gas. You do not actually need to do the calculation, just explain, starting from first principles, how you could do it. Make sure you explain how to incorporate the vibrational and rotational aspects of the diatomic molecule. Also point out any connections to the monat