both these are extensive because they change with different sizes and shapes of mass.
Density is a intensive property because the change had/had already been made so it is intensive. Density would be an intensive property.
answered: Guest
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
answered: Guest
space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )