Anuclear reactor core must stay at or below 95 °c to remain in good working condition. cool water at a temperature of 10 °c is
used to cool the reactor. if the reactor emits 21946 kj of energy each hour, how many grams of water must circulate each hour in
order to keep the reactor at or below 95 °c?

Nonmetal halogen family atmoic mass 35

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together