Powdered sulfur is yellow, and powdered iron is gray. when powdered sulfur and powdered iron are mixed at 20°c, the powdered iron (a) becomes yellow (b) remains ionic (c) becomes a liquid (d) remains magnetic

Drive down any three characteristic of modern periodic table

Light waves can move through , but they travel fastest when they move through a(n) .

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.