A stone is shown at rest on ground. at. the vector shows, Ask an Expert

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Q. Assuming you have a thermometer and a device to measure the speed of sound in a gas, explain how you can determine the mole fraction of helium in a mixture of helium gas and air.

Q. A stone is shown at rest on the ground. at. The vector shows the weight of the stone. Complete the vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn?

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