An aluminum tube of 3-in. outside diameter is to carry a load p of 10 kips having an eccentricity e = 0.6 in. knowing that the stock of tubes available for use are made of aluminum alloy 2014-t6 and have wall thicknesses in increments of 116 in. up to 12 in., determine the lightest tube that can be used. use the interaction method of design with an allowable stress in bending of 25 ksi. (input the final answer as a fraction.)

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.

radiation warms things up temp rises convection currents air circ windy weather

an energy transformation flow diagram is shown

where is it ?