A10 kg rock is suspended 320 m above the ground.
calculate the potential energy of the rock before it is released.
p. e. =
1.6 x 104 j
3.1 x 104 j
3.1 x 107 j
1.0 x 107 j

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f