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A Goodyear blimp typically contains 5980 m3 ofhelium (He) at an absolute pressure of 1.10 x 105 Pa.The temperature of the helium is 282 K. What is the mass (in kg) of the helium in the blimp?
Two trains are traveling toward each other at 30.5 m/srelative to the ground. One train is blowing a whistle at 500Hz. What frequency is heard on the other train in still air
question how many moles of gas are there in a gas-filled balloon which has a volume of 67.0 l at a pressure of 742 mmhg
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. how much work is the roping doing on the sledge
an unevenly weighted baton cylindrical in shape consists of two sections a denser lower section and a less dense upper
What is the total negative charge, in coulombs, of all the electrons in a small 1.05{\rm g} sphere of carbon? One mole of C is 12.0{\rm g} , and each atom contains 6 protons and 6 electrons.
explain why the ability to distinguish the two headlights of an oncoming car at a given distance is easier for the
Estimate the total pathlength traveled by a deuteron in the syslotron of sample problem 28-5 during the entire acceleration process. assume that the accelerating potential between the dees is 80kV
An L-C circuit containing an 80.0-mH inductor and a 1.55-nF capacitor oscillates with a maximum current of 0.750A. Calculate the oscillation frequency of the circuit
Calculate the frequency of an organ pipe with an effective length equal to 12.0 m that is closed on one side and open on the other
A solid block is suspended from a spring scale. When the block is in air, the scale reads 37.1 N, when immersed in water the scale reads 32.2N, What is the density of the oil
Two antennas radiating 6.0 MHz radio waves in phase with each other. They are located at points S1 ( at the origin x=0) and S2 ( at x=175 m). What are the first three points on the y axis
A worker pulls horizontally on a crate on a rough horizontal floor, causing it to move forward with constant velocity. In the figure, force is the pull of the worker and force is the force of friction due to the floor.
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