Two charged objects have a repulsive force of 0.050 N. If the charge of both of the objects is doubled, then what is the new force?

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.

What are two examples of phase changes that skip a phase during transition?