Aperson of mass 81.63 kg (weighs 800 n) wants to climb a ladder to perform a stunt on the icy surface of lake champlain. there is no friction between the feet of the ladder and the surface of the ice. assume that the mass of the ladder is small enough that it can be ignored. each half of the ladder has a length of 2.5 m, and the two halves are joined together by a 70 cm tie rod connecting the midway points of each side. if the person stands 3/5 of the way up the ladder, what is the tension in the tie rod? be sure to enter units in your answer.

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 bal will not change its velocity.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.