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nHMAC%3Def41415d9158412623399163083b2ede#10001 Spr. 2021 8 Gu HI, Leira v Sign Out Item 4 I Review | Constants | Periodic Table Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2250 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. Part A How many nutrition bars should Alexandra pack? Express the number of bars numerically. > View Available Hint(s) ν ΑΣφ bars Submit Previous Answers 0V 12:33

Some athletes have as little as 3.0% body fat. If such a personhas a body mass of 65 kg, how many pounds of body fatdoes that person have?

Can you please answer number 2 and show all of the work

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Scientific models do not describe reality. They are simplifications aid therefore incorrect at some level. So why are models useful?

The Chemistry in Focus segment titled Dr. Ruth—cotton Hero discusses the enormous contribution of Dr. Ruth Rogan Benerito to the survival of the cotton fabric industry in the United States. In the discussion, it was mentioned that Dr. Benerito became a chemist when women were not expected to be interested in, or good at, scientific subjects. Has this attitude changed? Among your own friends, approximately how many of your female friends are studying a science? How many plan to pursue a career in science? Discuss.

9.71 In recent years, the notion of a “smart grid” has emerged. Do a web search and research the smart grid concept. How would the smart grid differ from the traditional grid?

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