Two skaters stand on ice. one weights 250 N, and the other weights 500 N. They push against each other and move in opposite directions. Describe the momentum of each skater after they push away from each other.

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space