Using your scatter plot, what spacing seemed to provide the fastest falling speed? explain your rationale. using your scatter plot, what spacing seemed to provide the slowest falling speed? explain your rationale. in this lab, what is the independent and dependent variable? using your scatter plot, how long would you expect it take the dominoes to fall if they were spaced out 3.5 cm apart? explain your rationale. if you were to have used taller dominoes, do you think your results would have changed? explain your rationale. submit your data table, scatter plot and answers to the questions to your instructor for evaluation.

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.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.