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Examine the equation. 23490thā23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
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Physics, 22.06.2019 23:30
The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength
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Physics, 23.06.2019 22:20
Which of the following is best determined by applying the principles of relativity and uncertainty rather than newtonian physics? a.the velocity of a satellite b.the speed of an object moving at close to the speed of light c.the length of an accelerating race car d.the momentum of a plane
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