Physics, 24.10.2019 04:00 taylorbean315
Aloudspeaker of mass 20.0 kg is suspended a distance of h = 2.20 m below the ceiling by two cables that make equal angles with the ceiling. each cable has a length of l = 2.90 m . what is the tension t in each of the cables?
use 9.80 m/s2 for the magnitude of the acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 19:40
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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Physics, 23.06.2019 11:10
If an object is thrown in an upward direction from the top of a building 1.6 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground?
Answers: 2
Aloudspeaker of mass 20.0 kg is suspended a distance of h = 2.20 m below the ceiling by two cables t...
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