The frictional force is a conservative force
Indicate whether the statement is true or false
FALSE
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Two moles of an ideal gas are placed in a container of adjustable volume. When measurements are made
A. the pressure is inversely proportional to the volume at constant temperature. B. the temperature is directly proportional to the volume at constant pressure. C. the temperature is directly proportional to the pressure at constant volume. D. all the statements above are found to be correct. E. only statements (a) and (b) are found to be correct.
Carbon dioxide is stored in four containers at different temperatures. Container 1 contains the gas at 200 degrees Celsius, Container 2 contains the gas at 300 degrees Celsius, Container 3 contains the gas at 400 degrees Celsius, and Container 4 contains the gas at 500 degrees Celsius. Which of the following containers contains the gas with the lowest opacity?
A) Container 1 B) Container 2 C) Container 3 D) Container 4
Why do the constellations that are visible in the sky at night change with the seasons?
A. because the celestial sphere revolves around Earth B. because Earth revolves around the Sun C. because Earth rotates about an axis D. because Earth is a sphere
For a quantity of ideal gas, which of the following is constant?
a. PTV b. P/TV c. PT/V d. PV/T