Each time you dumped the pennies, one half-life passed; it has been shown that the half-life for this radioactive isotope is 20 years
in the year 2000, an archaeology team unearths pottery and is using this isotope for radiometric dating to place the age of the pottery
it is shown that 95% of the nuclei have decayed
approximately how long ago was the pottery made?
Answers: 1
Physics, 22.06.2019 01:00
Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?
Answers: 1
Physics, 22.06.2019 11:50
The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].
Answers: 3
Physics, 23.06.2019 01:20
What is the state of matter with a specific volume but no definite shape
Answers: 1
Each time you dumped the pennies, one half-life passed; it has been shown that the half-life for th...
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