Based on the data table above, which factor(s) - temperature, frequency, amplitude, or wave speed - affect the speed of sound and how?
Only the temperature affects the speed of sound, and the two are directly
proportional
Only the amplitude affects the speed of sound, and the two are directly
proportional
Both the temperature and the frequency affect the speed of sound, and all
three are directly proportional to each other
Only the frequency affects the speed of sound, and the two are directly
proportional.
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i would think it's food chain

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.

answer: 31, 5556. 952 seconds