The elevators in the john hancock building in chicago move 522 ft in 44 s. what is their speed? answer in m/s.

The speed is simply the ratio of distance and time. That is:

speed = distance / time

speed = 522 ft / 44 s

speed = 11.86 ft/s

Convert to m/s:

speed = 11.86 ft/s * (1 m/3.28 ft)

speed = 3.62 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.

the amount of current in the coil