Two conducting spheres with diameters of 0.400 m and 1.00 m are separated by a distance that is large compared with the diameters. the spheres are connected by a thin wire and are charged to 7.00 % c. (a) how is this total charge shared between the spheres? (ignore any charge on the wire.) (b) what is the potential of the system of spheres when the reference potential is taken to be v = 0 at r = 0

Part a)

Part b)

Explanation:

As we know that conducting sphere is treated like spherical capacitor

so we can say

also we know that

so charge on two spheres will be in the ratio of their capacitance

Part a)

Part b)

Now potential difference between two sphere can be given as

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank