Upon examining layer m, you find that it contains a small proportion of the radioactive isotope - potassium-40, which decays into argon-40 with a half-life of 1.3 billion years. assuming no contamination, what would be the age of a this layer if it contained 25% of potassium-40 and 75% argon-40?
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Physics, 21.06.2019 17:00
Heat from the sun reaches earth to a. radiation b. convection c. conduction
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Physics, 22.06.2019 08:00
Choose each of the settings that follow and list them below do it ill mark brainliest first object= position= speed= acceleration= second object= position= speed= acceleration=
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Physics, 22.06.2019 14:00
Often called simply "velocity," this is the velocity of an object at a particular moment in time.
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Physics, 22.06.2019 14:10
Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you canβt balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.
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Upon examining layer m, you find that it contains a small proportion of the radioactive isotope - po...
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