A sphere has a net charge of 8.11 nC, and a negatively charged rod has a charge of −6.13 nC. The sphere and the rod undergo a process such that 4.20 ✕ 109 electrons are transferred from the rod to the sphere. What are the charges of the sphere and the rod after this process?

Charge of the sphere =

Charge of the rod =

Explanation:

Parameters given:

Initial charge of sphere = 8.11 nC =

Initial charge of rod = -6.13 nC =

In the process, the rod lost . We have to find the charge of these electrons. Then, we subtract it from the rod's initial charge to get its final charge and add it to the sphere's initial charge to get its final charge.

Charge of electrons = electronic charge * number of electrons

           =

           =

FINAL CHARGE OF ROD

Final charge of rod = - ()

                                =

FINAL CHARGE OF SPHERE

Final charge of sphere = + ()

                                      =

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

the answer would be 32*f