Torque = r x F
|F| = mg = 60 * 10 N = 600 N ( assuming g ~ 10m/s^2)
distance of fulcrum = torque / Force = 90/600 m = .15 m.
Answer:
Francium has fewer valence electrons, but they are in a higher energy level
The answer is a.12.5kg because i just did the test and it was correct.
hope this helps
Answer:
I need this for may schooling
