Physics, 06.11.2020 01:00 b2cutie456
the isotope radium-226 decays into radon-222, with a half-life of around 1,600 years. if a rock contained 6 grams of radium-226 when it reached its closure temperature but only 0.375 grams when it was discovered , which two statements about the rock are true.
Answers: 2
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We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
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An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
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Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
the isotope radium-226 decays into radon-222, with a half-life of around 1,600 years. if a rock cont...
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