7. a 1.50 x 103 kg car accelerates uniformly from rest to 10.0 m/s in 3.00 s.
a. what is the work done on the car in this time interval?
b. what is the power delivered by the engine in this time interval?

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Ireally don’t know bruh

I’m really not sure what’s the answer. sorry