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Working with linear thermal expansion.

A steel aircraft carrier is 370m long when moving through the icy North Atlantic at a temperature of 2.0 degrees Celsius. By how much does the carrier lengthen when it is traveling in the warm Mediterranean Sea at a temperature of 21 degrees Celsius?

Subject:

Physics

Topic:

Other

Posting ID:

5874

OTA ID:

102846

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Working with mass and heat to calculate a final temperature.

A 10.0 kg block of ice has a temperature of -10.0 degrees Celsius. The pressure is one atmosphere. The block absorbs 4.11 * 10^6 J of heat. What is the final temperature of the liquid water?

Subject:

Physics

Topic:

Other

Posting ID:

5876

OTA ID:

103074

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Calculating various properties, such as molecular mass and moles of a chlorophyll-a molecule.

The chlorophyll-a molecule, C55H72MgN4O5, is important in photosynthesis. (a) Determine its molecular mass (in atomic mass units). (b) What is the mass (in grams) of 3.00 moles of chlorophyll-a molecules?

Subject:

Physics

Topic:

Other

Posting ID:

5877

OTA ID:

102846

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Working with the ideal gas law.

At the start of a trip, a driver adjusts the absolute pressure in her tires to be 2.81 * 10^5 Pa when the outdoor temperature is 284K. At the end of the trip she measures the pressure to be 3.01 * 10^5 Pa. Ignoring the expansion of the tires, find the air temperature inside the tires at the end of the trip.

Subject:

Physics

Topic:

Other

Posting ID:

5878

OTA ID:

103074

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Working with pressure, height, and Kelvins in a gas-filled cylinder.

A frictionless gas-filled cylinder is fitted with a movable piston. The block resting on the top of the piston determines the constant pressure that the gas has. The height h is 0.120 m when the temperature is 273K and increases as the temperature increases. What is the value of h when the temperature reaches 318K?

Subject:

Physics

Topic:

Other

Posting ID:

5880

OTA ID:

102156

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