PLEASE HELP!! Which of these units results when a distance of 35 m is multiplied by a force of 27 N, and then divided by a time of 5 s?

A newton (N) is kg·m/s2 in SI base units.

A) kg2·m/s

B) kg·m2/s3

C) kg·m2/s2

D) kg·m/s

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.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.