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Author Archives: Anonymous

What is the probability that a randomly selected customer wi…

What is the probability that a randomly selected customer will wait between 80 and 95 minutes for his or her tires to be installed?

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You stir together 15 mL of vegetable oil and 15 mL of vinega…

You stir together 15 mL of vegetable oil and 15 mL of vinegar (aqueous acetic acid solution) in a beaker and then allow the mixture to sit for thirty minutes. The density of vinegar is 1.0492 g/mL and density of vegetable oil is 0.8508 g/mL. Which 50 mL beaker’s diagram and label shows what you observe at the end of thirty minutes?  

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When vinegar is mixed with baking soda, the solution gets cl…

When vinegar is mixed with baking soda, the solution gets cloudy and fizzes.What indicates that a chemical reaction happened?

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A balloon of helium whose volume is 2.20 L at 25°C (298K) is…

A balloon of helium whose volume is 2.20 L at 25°C (298K) is cooled by pouring liquid N2 over it. The final temperature of the balloon is -196°C (77K). What is the final volume in L?

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How might the experiment be improved?

How might the experiment be improved?

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Using the data above and a natural gas price of $ 3.26 per m…

Using the data above and a natural gas price of $ 3.26 per million Btu, estimate the electricity generation cost (in cents/kWh) to be incurred by the AI company. Assume that the levelized annual fixed charge rate is 8.65%.

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How does the procedure described help to answer the question…

How does the procedure described help to answer the question of whether the deposits were calcium?

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Repeating the experiment allows the researcher to:

Repeating the experiment allows the researcher to:

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The local population is strongly against the AI company inst…

The local population is strongly against the AI company installing CO2 emitting gas turbines in their community. They want wind turbines with battery storage utilized instead. Consequently, your boss has asked you to determine the power output (in kW) from a twin-blade wind turbine having the following specifications: blade length of 15.6 m and overall turbine efficiency of [eff]%, and experiencing an average wind speed of 12.5 km/h and air density of 1.112 kg/m3.

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Ocean wave energy is comprised of ______% potential energy.

Ocean wave energy is comprised of ______% potential energy.

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