Questions from College Physics

Q: A 75-g ice cube at 0°C is placed

A 75-g ice cube at 0°C is placed in 825 g of water at 25°C. What is the final temperature of the mixture?

Q: A construction worker uses a steel tape to measure the length of

A construction worker uses a steel tape to measure the length of an aluminum support column. If the measured length is 18.700 m when the temperature is 21.2°C, what is the measured length when the tem...

Q: The band in Figure P10.23 is stainless steel (coefficient

The band in Figure P10.23 is stainless steel (coefficient of linear expansion = 17.3 x 10-6 (°C)-1; Young’s modulus = 18 x 1010 N/m2). It is essentially circular with an i...

Q: The Trans-Alaskan pipeline is 1300 km long, reaching from

The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -73°C to +35°C. (a) How much does the steel pipeline expand due...

Q: The average coefficient of volume expansion for carbon tetrachloride is 5.

The average coefficient of volume expansion for carbon tetrachloride is 5.81 x 10-4 (°C)-1. If a 50.0-gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C,...

Q: The density of gasoline is 7.30 x 102 kg/

The density of gasoline is 7.30 x 102 kg/m3 at 0°C. Its average coefficient of volume expansion is 9.60 x 10-4(°C)-1, and note that 1.00 gal = 0.00380 m3. (a) Calculate the mass of 10.0 gal of gas at...

Q: Figure P10.27 shows a circular steel casting with a gap

Figure P10.27 shows a circular steel casting with a gap. If the casting is heated, (a) Does the width of the gap increase or decrease? (b) The gap width is 1.600 cm when the temperature is 30.0Â...

Q: The concrete sections of a certain superhighway are designed to have a

The concrete sections of a certain superhighway are designed to have a length of 25.0 m. The sections are poured and cured at 10.0°C. What minimum spacing should the engineer leave between the section...

Q: A sample of pure copper has a mass of 12.5

A sample of pure copper has a mass of 12.5 g. Calculate the number of (a) Moles in the sample and (b) Copper atoms in the sample.

Q: Formaldehyde has the chemical formula CH2O. Calculate the number of

Formaldehyde has the chemical formula CH2O. Calculate the number of (a) Moles, and (b) CH2O molecules in 275 g of formaldehyde.