A "star" must produce energy via fusion.
This is a nuclear reaction in which nuclei (usually hydrogen) ram together at a high enough speed to form a nucleus with more protons than either of the original nuclei. For instance, a proton/neutron nucleus might smash into another proton/neutron nucleus and forming a nucleus of two protons and two neutrons.
This reaction can only be self-sustaining if there is enough energy during the reaction to end up as heat in other nuclei, which then blast into other nuclei and cause more fusion reactions. Because of that, there must be a fairly dense amount of fusionable material at a high temperature in order for a star to form.
The minimum temperature needed to permit fusion is about 8 million degrees Kelvin. Minimum densities would have to be about 10^15 particles per cubic centimeter, on the order of atmospheric pressure.
A shooting star is not actually a star. It is a meteorite going through our atmosphere. It becomes white hot as it heats up from the friction in our atmosphere and usually burns up.
When hot lava cools and hardens, it becomes solid rock known as igneous rock.
The rock becomes too hot that it must turn into liquid form (lava). This would usually mean that the rock had to have come into contact with lava first.
A meteoroid is a solar system object that enters Earth's atmosphere and becomes very hot due to friction with the air. As it travels through the atmosphere, the meteoroid heats up and creates a bright streak of light called a meteor, commonly known as a shooting star.
garbanzos
it becomes a volcanic rock that is still very hot but bot as hot as the star was originally
Because the water in the pipes is at room temperature. You must push all that cool water out with the hot water before the hot water reaches your faucet.
It is expected that in a few hundred million years, it will become too hot on Earth for any kind of life we know.
A shooting star is not actually a star. It is a meteorite going through our atmosphere. It becomes white hot as it heats up from the friction in our atmosphere and usually burns up.
It is hot and must be cooled before consumption.
Steam is water vapour - just a very hot form of it.
You sweat because it is hot outside and the sweater keeps the heat in your body. Your body becomes too hot and must naturally cool itself by sweating.
Gravity is the most responsible force for the formation of a star. As a cloud of gas and dust contracts due to gravity, the material in the core becomes dense and hot enough to ignite nuclear fusion, leading to the birth of a star.
Hot rolled steel must be descaled by pickling in acid with a lime water rinsebefore it can be cold finished
A star becomes a white dwarf star at the end of its life cycle when it exhausts its nuclear fuel and can no longer support fusion reactions in its core. The star will then shed its outer layers, leaving behind a hot and dense core supported by electron degeneracy pressure. Over time, the white dwarf will cool and fade into a black dwarf.
it becomes hot due to friction
Yes, a star is a glowing sphere of hot gas.