A satellite is in orbit around the Earth and travels with a velocity of 4000 m/s. Which of the following will have a smaller orbital velocity? (1 Point)

A satellite with the same mass orbiting with a smaller radius.

A satellite with less mass orbiting at the same radius.

A satellite with the same mass orbiting Saturn (which has a greater mass) at the same radius.

A satellite with less mass orbiting at a greater radius.

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.

uranium fissions/breaks up giving out energy and neutrons

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

the assestment will probley apele with cause and effect