Question one
Gravity exhibits long range on astronomical scale as compared to the strong force that has short range. This is one of the characteristics that makes gravitational force instrumental in keeping the planets in their orbits around the sun. Due to the effects of small particles known as gravitons, the planets can be held in place by forces produced due to high speed of the gravitons. From the Law of Universal Gravitation, general relativity and wave-particle duality, gravitation caused by the exchange of gravitons between planets and the sun help keeping them in their orbits
Question two
Generation of protons and neutrons is through the collision of two particle-antiparticle pairs, a process usually accompanied by energy emission. The collision of these two photons, each with energy greater than 10-10 joules, can produce a proton and an antiproton pair; this process is usually termed as pair production. After 4 seconds of the Universe age, the temperature dropped below 6 billion Kelvin which lead to equivalence in the energy of photons and positrons; consequently, stopping pair production process.
Question three
Other kinds of hadrons called mesons are more exotic form of matter
a) Mesons are powerful magnetic particles, comprising of quark or antiquark pair with an even integer spin value. An example of this type of matter is the hadrons.
b) On the mesons location, they can be detectable in isolations, some of which include Cosmic rays within nucleus and protons and in x-rays or any radiations.
c) The half-life of Mesons is approximated to be about 2.6 ×10-8. Some of the various kinds of meson include pion and kaon, which contain both quark and antiquark particles within them.
Question four
There cannot exist “free” quarks in the universe. This is because they occur with different charges. The gravitational force of attraction pair up quarks and hence cannot live freely. Quarks cannot exist freely in neutrons or protons just because they pose opposite charge.
