2NO2 means that there is 2 oxygen atoms and one nitrogen with two sets of that. So its the third one
Answer:
2250N
Explanation:
W= mg,
where W= weight
m= mass
g= acceleration due to gravity
Given that the body is 90kg, m= 90kg.
Acceleration due to gravity of planet
= 2.5(10)
= 25 m/s²
Weight of body on planet
= 90(25)
= 2250N
*Mass is the amount of matter an object has and is constant (same on earth and the planet).
J.J. Thompson is the scientist who recieved credit for discovering them.
