How many grains are there in 1 cup of rice

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Reference no: EM132038939

A certain type of rice has an average grain length and diameter of 6 mm and 2 mm, respectively (assume that a grain has a form of a cylinder). One cup of this rice, after being cooked, contains about 795 food calories. Assume the cup volume is 280 cm3.

Part A

How many grains are there in 1 cup of rice? Assume perfect packing of the grains of rice (no unoccupied volume in the cup).

Express your answer using one significant figure.

N = 

Part B

How many calories are there in one grain?

Express your answer using one significant figure.

E = 

Cal/grain

Part C

How many cups of uncooked rice are needed to provide 2000 food calories to each of four adults?

Express your answer using three significant figures.

n=

cups

Reference no: EM132038939

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