1. Which answer best explains microgravity. Astronauts are able to float because they are out far enough from the Earth to escape gravity.
Things orbiting Earth appear weightless but are actually falling around the Earth.
Gravity in space, or microgravity, is a tiny fraction of what it is on Earth.
Because gravity diminishes by the Inverse square of the distance if you get away from the earth microgra

i think the answer is a, hope this : )

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

the components of a vector are the parts of the vectors that are to each other.

b perpendicular

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =