Assuming conservation of energy:
Energy before = 7000 + 4000 = 11 000 MJ
Energy after = 2000 + Kinetic = 11 000
Therefore Kinetic = 11 000 - 2 000
Kinetic = 9 000 MJ
If we take v=u+at and our given values are:
v=final velocity 20m/s
u=initial velocity 15m/s
a=acceleration
t=time 5sec
we plug those into our equation:
20m/s=15m/s+a(5s)
now we just rearrange to solve for acceleration.
(5m/s)/(5s)=a
a=1m/s^2
hope this helps!
PLEASE MARK BRAINLEIST
Because of the higher elevation. As much as we go away from earth by increasing altitude, there will occur lacoccuren. due to this, we need to breathe fast to get suffient oxygen by time at top of the mountain. We breathe faster at the top of a tall mountain due to a natural reflex. As we go higher up a mountain, the density of air and oxygen decreases, i.e. the amount of oxygen in the air decreases along with other gases. Therefore, to maintain the regular supply of oxygen, the body breathes faster. If we go too high without oxygen tanks, we could fall unconscious and die within 8 minutes due to oxygen deprivation.
Hope this helps! let me know if you need anything else!!
94 electrons. protons and electrons are always the same, but neutrons are different.
