Carole is surprised when she makes an emergency stop and the tissue box that had been in the back window of her car hits the back of her seat. how would newton explain what happened? a. the force of stopping caused it to accelerate. b. an object in motion tends to stay in motion. c. every action has an equal and opposite reaction. d. box mass and inertia accelerate with the force.

The answer is A

I just had this question.

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.

trig 15.3 cos