Which substance needed a greater increase in kinetic energy in order to change phase? The substance with medium attraction needed more energy transferred in in order to
change phase.

The substance with high attraction needed more energy transferred in in order to
change phase.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

it would be d. henry moseley

hope this !

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