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A modern penny weighs 2.5

A modern penny weighs 2.5 g but contains only .063 g of copper. How many copper atoms are present in a modern penny? Thanks in
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2. asked by Danya
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a u.s. penny weighs 0.1 oz. the smallest hummingbird on record was 2.24 inches long and weighed 0.056 oz. how much less than a
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Lana is calibrating a scale. The scale calibrates at 50g. When she puts a nickel on the scale, it weighs 4.94g. A nickel weighs
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A penny weighs 5.8x10^-3 lb. How many pennies are in a pile of pennies that weighs 3.596x10^4 lb? Write the answer in scientific
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Scientific Notation Online PracticeComplete this assessment to review what you've learned. It will not count toward your grade.
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Before 1982 the US Mint cast penny coins from a copper and zinc mixture. If a 1980 penny weighs 3.051g and contains 0.153g zinc,
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2. asked by Twynna
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Before 1982 the US Mint cast penny coins from a copper and zinc mixture. If a 1980 penny weighs 3.051g and contains 0.153g zinc,
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2. asked by Twynna
3. 526 views
Penny weighs 5.8 times 10^-3 lbs how many Pennie’s are in a pile that weighs 3.596 times 10^4
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A penny weighs 5.8×10−3%0D%0A5.8%0D%0A×%0D%0A10%0D%0A−%0D%0A3%0D%0A lb. How many pennies are in a pile of pennies that
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2. 17 views
A penny weighs 5.8×10^-3 pounds. How many pennies are in a pile of pennies that weighs 3.596×10^4 pounds. Write the answer in
1. 1 answer
2. 17 views