Answer:
Nuclear fusion
Explanation:
This is because main sequence of star is powered by fusion of hydrogen to helium atoms together and this process releases energy. The energy released when the gas collapse into a protostar make the center of the protostar to be extremely hot. When the core becomes very hot, nuclear fusion can start.
Answer:
the answer is ture
Explanation:
because the energy substances must absorb in order to change from liquid to gas
Your best answer would be “it changes into ice”. Hope this helps;)
Answer:
(a)-24 ft/s
(b)-16.8 ft/s
(c)-16.16 ft/s
(d) -16 ft/s
Explanation:
The initial velocity, v=48 ft/s
(a)
The average velocity when t=2 and 0.5 seconds later hence t=2.5 is given by
(b)
The average velocity when t lasts 0.05 second then
t=2 and t=2.05 is given by
(c)
The average velocity when t=2 and lasts 0.01 s then t=2.01 then is determined by
(d)
As the intervals get small, that is to imply from 0.05 s later to 0.01 s later as seen in parts a to c, the values are getting small and closer to 16 hence the instantaneous velocity at t=2 is -16 ft/s
It is known Zero Gravity Research Facility. It is NASA’s premier facility when it comes
to microgravity research. It is also the
largest facility for research. This
facility provides researchers a weight near to weightless or also called as
microgravity environment that lasts 5.18 seconds.