Why do plants need to obtain carbon atoms?
A) Plants use carbon to build glucose during photos...
Physics, 18.02.2020 10:31 RayQuan115
Why do plants need to obtain carbon atoms?
A) Plants use carbon to build glucose during photosynthesis.
B) Carbon is their food.
C)They use carbon to breathe.
D)Plants don't need carbon.
Answers: 1
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Which atomic model was proposed as a result of j. j. thomson’s work?
Answers: 1
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In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy
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.
Answers: 3
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