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Very large usually but it ranges a lot from between the mass of the moon to 100,000 or more mass of the sun.
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∙ 12y ago
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What is the difference between rest mass and effective mass of electron?
mass
Why the effective mass of an electron is different than it mass in vacuum?
Because you touch yourself at night.
The most effective shape for achieving critical mass is a?
sphere
What is the most effective shape for achieving critical mass?
A sphere
How do unbalanced forces affect an objects velocity?
When the forces on an object are unbalanced, the object undergoes acceleration. Its direction is the direction of the net effective force, and its magnitude is the magnitude of the net effective force divided by the object's mass.
Is it true holes have a mass?
The electrons that are missing have a negative effective mass. So the holes have a positive effective mass.
Why effective mass of electron is negative at the top of valence band?
Because of holes
Which has more mass electron or hole?
Holes have a slightly larger effective mass. I couldn't tell you what that is exactly, but the mass of an electron is:9.1094 * 10^-31 kg
What has a lot of mass?
Black holes.
What kind of stars become black holes low mass or medium mass or high mass?
High-mass stars might become black holes, if the remaining matter (after the supernova explosion) is sufficiently large.
What is the difference between rest mass and effective mass of electron?
mass
How do black holes survive?
it's mass
Why mobility of holes is greater than mobility of electron?
electrons have less effective size than that of holes(which actually are not real)...formula says m(mobility)=drift velocity/electric field=et/m where t is relaxation time.. so mobility is inversely proportional to mass hence e has more mobility.
What is the most common form of black holes in the universe?
Probably stellar mass black holes
Why do some products use tapped holes and some use nuts?
You can not make effective tapped holes in many products.
How does a black holes acquire greatest mass?
Most black holes are stellar mass black holes with masses comparable to those of large stars as they form from the collapse of massive stars. Scientists know of the existence of supermassive black holes that are millions to billions of times the mass of our sun and can be found in the centers of most galaxies. Scientists still do not know how these black holes become so massive.
Are there different types of black holes?
there are four types of black holes. 1. super massive 2. Intermediate mass 3. Stellar mass 4. Micro
