2007-01-27 12:22:57 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Please help me Im desperate
2007-01-27 12:34:13 · update #1
The charge is negative right? That means I have to put a negative sign in front.
2007-01-27 13:01:37 · update #2
110 kg of electrons x 1 electron/9.11x10^-31kg = the number of electrons in 110 kg of electrons. Then multiply this number times the charge on one electron (1.6x10^-19 C)
2007-01-27 12:58:36 · answer #1 · answered by Dennis H 4 · 0⤊ 0⤋
Each electron has mass = 9.1x10^-31 Kg. 110 kg electrons would have 110/9.1 = 12 electrons. Each has 1.6x10^-19 coulomb amount
of negative charge. So total charge would be = 12 x 1.6 x 10^-19 = 19.2 x 10^-19 = 1.92 micropicocoulomb!
2007-01-27 20:43:02 · answer #2 · answered by Let'slearntothink 7 · 0⤊ 0⤋
The electron charge-mass ratio is 1.759 *10^11 C /kg.
For 110 kg the charge is 110 x 1.759 *10^11
= 1.935*10^13 C.
2007-01-27 20:50:54 · answer #3 · answered by Pearlsawme 7 · 0⤊ 0⤋
***Edited***
We need to find out how many electrons we are dealing with.
The mass of an electron is 9.109 Ã 10-31 kilograms
Number of electrons = 110kg of electrons * 1/(9.10938188 Ã 10-31 kilograms/electron)
= 1.21 * 10^32 electrons
Each electron has a charge of -1.602Ã10â19 Coloumbs.
So the charge of x electrons is:
= -1.602Ã10â19 C * 1.21 * 10^32 electrons
= -1.93 * 10 ^13 C
Yes, you are correct. The charge is negative as electrons are negative.
2007-01-27 20:52:08 · answer #4 · answered by Le Scientist 2 · 0⤊ 0⤋
the total charge would be = 12 x 1.6 x 10^-19 = 19.2 x 10^-19 = 1.92 micropicocoulomb!
2007-01-27 21:03:34 · answer #5 · answered by Anonymous · 0⤊ 0⤋