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?.
Answers: 1
SAT, 25.06.2019 07:00
Explain how you might determine the rate of weathering on a sample rock
Answers: 1
SAT, 27.06.2019 11:00
Nathan is an ecologist. heβs studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.
Answers: 2
SAT, 28.06.2019 07:00
Classify each action depending on whether it will meet or fail to meet the goals of the organization. a group of students form a healthy earth club at their school. their goal is to limit their schoolβs impact on human-led climate change. they brainstormed a list of actions they can take to meet this goal.
Answers: 3
Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99. 3% and 235u has an...
Mathematics, 12.09.2021 20:10
Health, 12.09.2021 20:10
Physics, 12.09.2021 20:20
Mathematics, 12.09.2021 20:20
Mathematics, 12.09.2021 20:20
Social Studies, 12.09.2021 20:20
English, 12.09.2021 20:20
Mathematics, 12.09.2021 20:20
Computers and Technology, 12.09.2021 20:20