Isis is playing around with two magnetic toy vehicles. She has two identical magnetic vehicles (purple and
green) on different sides of a center magnet that
cannot move. Aniyah challenges her to move one
vehicle one space to the left or the right in order to get
the largest increase in potential energy. That means Isis
can move the purple car to point A or point B, or she
can move the green car to point C or point D.
Explain which movement Isis should make (which car
and which point), and why that movement will result in
the largest increase in potential energy. Describe the
magnetic force that will act on the vehicle he moves.

multiple

28. evolution

29. environment, survive, offspring  

explanation:

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 temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.