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Initially, the translational rms speed of a molecule of an ideal gas is 464 m/s. The pressure and volume of this gas are kept constant, while the number of molecules is tripled. What is the final translational rms speed of the molecules?
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Question: A point charge q1 = +2.40 μC is held stationary at the origin. A second point charge q2 = -4.30 μC moves from point a (x = 0.150 m, y =0) to point b (x = 0.250 m, y = 0.250 m). What is the electric potential ...
Question: A speed skater moving across frictionless ice at 9.2 m/s hits a 5.0 m wide patch of rough ice. She slows steadily, then continues on at 5.8 m/s. What is her acceleration on the rough ice? The response must be t ...
Atoms bond to atoms through their electrons the following analogy will be used to help us understand how this occurs. Imagine that the atoms of different elements are like kids coming to school. Each kid comes to school ...
Question: An object of mass m is dropped from height h above a planet of mass M and radius R. Find an expression for the object's speed as it hits the ground. Express your answer in terms of the variables m,M,h,R and app ...
Question: It is proposed that future space stations create an artificial gravity by rotating. Suppose a space station is constructed as a 1000-m-diameter cylinder that rotates about its axis. The inside surface is the de ...
Question: Some plants disperse their seeds when the fruit splits and contracts, propelling the seeds through the air. The trajectory of these seeds can be determined with a high-speed camera. In an experiment on one type ...
A cogeneration power plant uses waste wood from the forest industry to generate heat and electricity for a nearby industrial park. It has a capacity to burn 80 MW of wood as thermal power. If the thermal power production ...
The equation for motion for the ideal spring-mass system as derived in class is, ma+kx=0, where, m=mass, a=acceleration, k=spring stiffness, and x=displacement. 1) Describe briefly how the equation for motion arises from ...
Question: You are standing on a skateboard, initially at rest. A friend throws a very heavy ball towards you. You can either catch the object or deflect the object back towards your friend (such that it moves away from y ...
John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty's speeds?
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