A box with a mass of 25 kg and a box with a mass of 10 kg are lifted and set on the same shelf. Which of the following describes their energy?

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

1 is the answer to this problem

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;