Homework Statement
Find the negative electric charge of all the electrons in a 56 liter sample of oxygen gas at STP. Assume the oxygen gas is diatomic.
Homework Equations
The Attempt at a Solution
I have no idea. Please help
Homework Statement
Find the total electric charge of all the electrons in a 50kg sample of water
Homework Equations
a conversion factor
The Attempt at a Solution
I need the atomic # and the atomic mass but it is water. If I had those two i could solve the problem. How do i get...
Homework Statement
Vector A has a magnitude of 9m. find the angles and the vector AHomework Equations
u-hat equals the vector u divided by its length
cos alpha=Ax divided by A
cos Beta=Ay divided by A
cos gamma=Az divided by AThe Attempt at a Solution
i do not know where to begin because 9...