30 points think about the kind of map that would be best to use to organize and compare mechanical and electromagnetic waves. this is science! i'll mark brainliest

The answer for #3 is c but i don't know why

Two atoms interact with each other as shown by the equation. complete the equation by filling in the missing parts. 1 2 3 4 5 h he li

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.