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Physics

General

Easy

Question

$none space of space the space space straight A space steel space ball space is space dropped space on space straight a space hard space surface space from space straight a space height space of space 1 space straight m space and space rebounds space to space straight a space height space of space 64 space cm. space The space maximum space height space attained space by space the space ball space after space space n to the power of t h end exponent text bounce is (in end text open straight m close parentheses$

$(0.64)^{2 n}$
$(0.8)^{2 n}$
$(0.5)^{2 n}$
$(0.8)^{n}$

The correct answer is: $left parenthesis 0.8 right parenthesis to the power of 2 n end exponent$

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