YO PL HELP an object with mass 1000kg accelerates at 3m. s^2 in the northern direction. calculate the net force that causes this acceleration​

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

In science and physics what is the standard unit of measure for speed?

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.