In the previous part, you discovered that the trajectory of an object does not depend on the object's size or mass. but if you have ever seen a parachutist or a feather falling, you know this isn't really true. that is because we have been neglecting air resistance, and we will now study its effects here. select air resistance for the simulation. fire a baseball with an initial speed of roughly 20 m/s and an angle of 45∘. compare the trajectory to the case without air resistance. how do the trajectories differ?

answer; (arch); good luck

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.

where is the circuit diagram ?

double the distance = divide strength by 4