Stellar evolution is the life cycle of a star. a cycle suggests that upon death of a star, another star is born. how is this possible?
(a)stars never really die.
(b)the death is a black dwarf star. this type of death triggers the birth of a new star.
(c)the death is a red giant. this type of death emits red energy that forms a new star.
(d)the death is a supernova. this type of death can produce nebular clouds and trigger the birth of a new star.
Answers: 1
Physics, 22.06.2019 02:10
"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaΟv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and Ο is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and Ο = 1.2 kg/m3.
Answers: 2
Stellar evolution is the life cycle of a star. a cycle suggests that upon death of a star, another s...
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