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Is 18(O) an element or iron? How can i factorise y^1/2 - x^1/2? 1.4 eV electron has a 10-4 probability of tunneling through a 2.5 eV barrier.What is the prob a 1.4 eV proton going through the same barrier? Find a formula for the nth term of the arithmetic sequence. First Term 1
Common Difference 4? What's planet has the thickest atmosphere?