Because we wish to have a sustainable future. The current dependence on fossil fuel means that there will be a point when humans have no fuel to use because fossil fuels are a non-renewable resource.
Answer:
Acceleration, 
Explanation:
Given that,
Speed of pilot, v = 475 m/s
Radius of the circle, r = 2310 m
If the pilot is moving in a circular path, it will experience a centripetal acceleration. It is given by the formula as :



So, the acceleration experienced by a pilot flying in a circle is
. Hence, this is the required solution.
we know 1kg=9.8N so 30 kg= 30 x 9.8 = 294 N
work is done when a 30 kg mass is to be lifted through a height 6m :
A = 294 x 6 = 1764 J
ok done. Thank to me :>
they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air).