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If the average kinetic energy per molecule of a monatomic gas is 7.0x10^-21 Joule, determine the Celsius temperature of the gas?
two moles of an ideal gas at 400 K expand quasi-statically and isothermally from an initial volume of 31.0 L to a final volume of 86.0 L. What is the entropy change of the universe for this process
At rest, a car's horn sounds at a frequency of 480 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 470 Hz. What is the speed of the car?
What is the speed of the block of clay right after the collision. What impulse does the clay exert on the block.
An ancient manuscript reveals that a owner of a vineyard in Rome held 2 selions of plowed land plus a livestock area of 20 perches by 5 perches
if the surface temperature of the skin is taken to be how much thermal power does the body described in the
The bugle and the Bach - Trumpet have no keys and thus play only the natural scale (open pipes). If the lowest note you can play on a bugle is D2 (73.42 Hz), what other notes can you play
An object initially at rest breaks into two pieces as the result of an explosion. One piece has twice the kinetic energy of the other piece .What is the ratio of the masses of the two pieces? Which piece has the larger mass?
question a tungsten filament used in a flashlight bulb operates at 0.20 a and 3.2 v. if its resistance at 20oc is 1.5?
An athlete at the gym holds a 2.5 kg steel ball in his hand. His arm is 70 cm long and has a mass of 4-kg. What is the magnitude of the torque about his muster if he holds his arm straight out to his side, parallel to the floor.
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.56 diopters, How far is the blackboard from her eyes
a heat engine operating between 40 C and 380 C has an efficiency 60% of that of a Carnot engine operating between the same temperatures. at what rate does it exhaust heat
q1. a street lamp weight 164n. it is supported equally by two wires that form an angle of 129 degrees with each other.
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