I think the first question is talking about the ionic compound Sodium sulfide and it’s formula is Na2S.
And for the second question, i’m pretty sure it’d be a positive charge
Only one of those four statements is true.
"Matter is held together by forces."
Multiply 25 times 6, to get 60 seconds and that is your beats per minute. In this case it is 150 BPM.
Answer:
Pro jectile motion, also known as parabolic motion, consists in launching a body with a velocity that form an angle α with the horizontal
Explanation:
~♥~
I believe this is it
The centripetal force is given by
F = mv^2 / r
When v' = v/2,
F' = mv'^2/r = m(v/2)^2/r = mv^2/4r = F/4.
So the centripetal force is divided by 4.