Physics, 16.10.2021 01:00, guzmanbrandon3259
A penny is dropped into a well and it falls for 5 seconds before hitting the water. Show work!
(a) What is the penny's speed when it hits the water?
(b) What is the distance the penny fell?
Answers: 3
Physics, 22.06.2019 08:00, plshelpme53
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 2
Physics, 22.06.2019 19:40, rileybaby34
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.
Answers: 3
A penny is dropped into a well and it falls for 5 seconds before hitting the water. Show work!
(a)...
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History, 19.05.2020 10:58
History, 19.05.2020 10:58