- A metal sphere (r=5cm) weighs 12N. What is its relative density?

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Can acceleration and displacement reach maximal values during SHM simultaneously? Explain why.? Find the intervals on which the function F (x)= x^(2)+|5x+1|+5 is increasing and deceasing? 400000 in word? Let X be a random variable with E(X)=3 and Var(X)=9. Then E(X^2) is? (The answer should be 18 but explain?)? Describe the phases of the action potential along with their mechanisms?