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Simora [160]
3 years ago
6

Which has more mechanical energy, a box on the top shelf of a closet or a box of equal mass on the floor? The box on the floor h

as more mechanical energy because work has been done on it. The box on the shelf has more mechanical energy because it is higher above Earth's surface. They have the same mechanical energy. There is not enough information to know.
Chemistry
2 answers:
denis-greek [22]3 years ago
8 0

the box on the shelf is right:)

Ksju [112]3 years ago
4 0

Answer: B: The box on the shelf has more mechanical energy because it is higher above Earth's surface.

Explanation:

cause its right :)

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Oksi-84 [34.3K]

The pressure of the gas is obtained as 48 atm.

<h3>What is the total pressure?</h3>

Now we know that;

Number of moles of CH4 = 48.0 grams /16 g/mol = 3 moles

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Total number of moles present = 3 moles + 28 moles = 31 moles

Using;

PV =nRT

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Learn more about pressure of a gas:brainly.com/question/18124975

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4 0
1 year ago
What is the molarity of a solution of 17.0 g of nh4br in enough h2o to make 158 ml of solution? answer in units of m?
vivado [14]
Unit of M is also mole/L, where mole is the moles of solute and L is the volume of the solution.  The latter is given: 158 mL or 0.158 L.  So we need to find out the moles of NH4Br.

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So, the molarity of the solution = 0.1736mole/0.158L = 1.10 mole/L = 1.10 M
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It was former President Woodrow Wilson who was nominated by self-announcement and he become the president of the United States of America in the year 1913 up to the year 1921. He was the 28th president of the United States and he runs on the presidential election year 1912 and won the presidential title. He served the country for 9 years. Former President Woodrow Wilson was born is Virginia, US in 1856 and he died on the year 1924 at the age of 67.
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Alex_Xolod [135]

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7 0
3 years ago
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