Which element listed below can conduct heat and electricity, but not as well as metal? a. copper (Cu)
b. silicon (Si)
c. iron (Fe)
d. neon (Ne)

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

When the mercury level in a barometer decreases that atmospheric pressure has

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.