Ascientist is studying all living things on the planet. the focus of his/her study is on the
biosphere
hydrosphere
cryosphere
lithosphere

the answer would be a

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

e/c, where e is its total energy