The highest-mass stars have the shortest lifetimes; a star 60 times as massive as the Sun is predicted to have a lifetime of only a few million years, and extremely massive stars like R136a1 have even shorter lifetimes. In contrast, small, cool, dim stars can burn for a very long time; the smallest red dwarf stars may last for a trillion years before burning out.
The ozone is expected to deplete more. It is because of the use of CFC's.
The expected range for hematocrit is 3 times the hemoglobin level, so with a hemoglobin of 12.0 g/dL, the expected hematocrit range would be around 36-40%.
The lifetime of a star is determined by its mass because more massive stars burn through their fuel faster due to higher core temperatures and pressures. Higher-mass stars undergo fusion at a quicker rate, leading to a shorter lifespan compared to lower-mass stars. Conversely, lower-mass stars burn their fuel more slowly, allowing them to exist for billions of years.
Most stars fall within a mass range of approximately 0.1 to 100 times the mass of our Sun. This range includes most of the stars in the universe, from low-mass stars like red dwarfs to high-mass stars like blue giants.
True. The rotation curve of galaxies typically shows that stars beyond the sun are moving faster than expected based on the visible mass distribution in the galaxy. This discrepancy suggests the presence of dark matter, which exerts gravitational influence on the stars and affects their motion.
Live Mas that is your hint to who I am
Lifetimes range from a few million to 100 trillion years
10 years
When a star is at the end of its lifetime its mass increases.
The clock / BIOS battery found in most desktops has an average lifetime of 5 to 7 years. While this is certainly not the expected lifetime of the user, it is about the same as the expected useful lifetime of a desktop.
Many truckcompanies operate with half a million miles as a lifetime goal.
Red dwarves.
The chemicals (usually hydrogen and helium) that fuel the reactions in the star that creates heat and light have a finite lifetime. Our own sun is expected to only last for about another 6,000 years.
The chemicals (usually hydrogen and helium) that fuel the reactions in the star that creates heat and light have a finite lifetime. Our own sun is expected to only last for about another 6,000 years.
The ozone is expected to deplete more. It is because of the use of CFC's.
A person can be expected to breath in approx. 48 pounds of dust in a lifetime.
250,000