Physics, 07.10.2019 09:00 dragongacha777
44) a long spring is attached to a wall. a student generates a pulse 20cm high. when the pulse hits the wall it bounces back upside-down. if a student creates another 20cm pulse, what will be the effect when the two pulse meet?
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Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.
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You are doing a science experiment with a fahrenheit thermometer. your data must be in degrees celsius. if you measure a temperature of 125°f, what is this temperature in degrees celsius
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What is the volume of 2400kg of gasoline (petrol) if the density of petrol is 0.7g/km3
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44) a long spring is attached to a wall. a student generates a pulse 20cm high. when the pulse hits...
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