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An ideal gas is enclosed in the container with dimensions 5m x 3m x 2m. The pressure in the gas is 2 atm(1 atm= 101.3 kPa) and the temperature is 20 degree celsius.
a. find the total number of molecules in the container.
b. find the number of moles of the gas in the container.
c. find the average kinetic energy of a molecule.
d. find the thermal(or internal) energy of the gas.
A 2.3cm high object is located 30cm from a diverging lens, whose focal length is 14cm. What is the height of the image produced by the lens
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Two sources have sound levels of 104dB and 62.3 dB. what is their combined intensity
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The speed of a certain electron is 350 km/sec. If the uncertainty in its momentum is 0.010%, what uncertainty in its location must be tolerated
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As a 13,800 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. what was the plane's landing speed
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