The gravitational force between two electrons 1.00 m apart is 5.54 X 10 -71 N. Calculate the mass of an electron. It's a pain in the App StoreS, any smart people help me and do it step by step so I can understand it.

First you need to know about two laws, which are:

1) Coulomb's law

2) Newton's law of gravitation

1.

According to Coulomb's law, Electric force between TWO charges is:

-- (A)

Where, k = 1/(4*π*epsilon_not) =  

Both  and  = -1.61 x  C

r = Distance between the two charges = 2.00m

Plug-in the above values in (A), you would get:

= (9 *  ) (1.61 *   * 1.61 * ) / (2*2)  

=  N

2.

According to Newton's law of gravitation:

-- (B)

Where G = Gravitational constant = 6.674 *  

m1 = m2 = Mass of the electron =  kg

r = 2.0 m

Plug-in the above values in (B), you would get:

= (6.674 * ) (   *  }[/tex]) / (2*2)  

=  N

=  

Now do Fe over Fg, you would get:

Ans: So the blanks are:

1) 5.82

2) 1.38

3) 4.23

-i

Explanation:

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.