Let's see how much you know about space, so here's a good astronomer question for you (there's 2 questions included in this):

1.) what year does nasa plan on sending people to mars?

(a) 2020
(b) 2021
(c) 2022
(d) 2023

2.) what's the name of the space company who's planning on sending people to mars?

(a) airlaunch
(b) arcaspace
(c) spacex
(d) astroscale

Explanation:

NASA announced that the planned 2020 Mars rover would  support human mission.Human mission includes sending people from earth to moon and analysing the possibilities of life in the red planet.This will be a mile stone for NASA and the human race overall.NASA will be the first to send people to moon.

SpaceX is a company that manufactures rockets and space equipment.

The company chief executive officer Elon Musk announced that Spacex is trying to send humans to Mars by 2024.

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//