Which of the following is true? a line with a lower cycle time has greater output than one with a higher cycle time. a line with a higher cycle time has greater output than one with a lower cycle time. cycle time is unrelated to output rate. a line must be arranged such that capacity grows with each successive station. cycle time cannot be greater than the task time of the bottleneck.

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.

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

more than, less

less than, more