A 6, water is 7 therefore anything above 7 is alkaline, anything below is acidic, typically
Dude it’s 8.1 Km. Bet it’s right.
Answer
given,
radius of earth,r = 1.5 x 10¹¹ m
Time,T = 365 days
= 365 x 24 x 3600 s
earth velocity,


v = 3 x 10⁴ m/s
centripetal acceleration of the earth


a = 6 x 10⁻³ m/s²