Answer:
Option (C) is the answer
Explanation:
may be it is possible if that we stand so far
1 mol of oxygen molecules = 2 * 16 = 32 grams.
x mol of oxygen = 16 grams
1/x = 32/16 Cross multiply
16 = 32x Divide by 32
16/32 = x
x = 1/2 mol
1 mol of anything has 6.02 * 10^23 somethings (molecules in this case).
1/2 mol = 6.02 *10^23 / 2
1/2 mol = 3.01 * 10^23 molecules <<<< answer
Answer:

Explanation:
Centripetal acceleration (a) is defined as the square of an object's velocity (V^2) divided by the distance of the object from it's point/axis of revolution (r). So:

which allows us to solve for the velocity:

the attraction is maximum between b and c. while the force between a and d is minimum
When ALL the forces are equal, or in general when <span>forces in the opposite direction are equal
so we can have newton example:
10 newtons X -10 newtons
netforce = 0 newtons</span>