What stage of star formation is the zero-age main sequence?
What will be an ideal response?
At stage 7, the zero-age main-sequence star is fusing hydrogen and on the main sequence, to stay there for as long as it has sufficient hydrogen to remain stable.
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How many 2d electron states can an atom have?
A) 8 B) 0 C) 4 D) 10 E) 6
Tripling the displacement from the equilibrium of an object in simple harmonic motion will change the magnitude of an object's maximum acceleration by what factor?
a. 9 b. 1/3 c. 6 d. 3
The equation of continuity is a statement of the
A) conservation of linear momentum. B) conservation of mass. C) conservation of energy. D) conservation of kinetic energy. E) conservation of angular momentum.
At a location where g = 9.80 m/s2, a projectile returns to its original height after 4.08 seconds, during which time it travels 76.2 meters horizontally. If air resistance can be neglected, what was the projectile's initial speed?
What will be an ideal response?