Question

Which one is correct ?




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Answer 1

Answer:

আমরা জানি,

$E = \frac{1}{2} k {x}^{2} \\ \therefore \: E \: \propto \: {x}^{2}$

এখন,

আদি সরণ $x_1$ = x

পরিবর্তিত সরণ $x_2$ = 2x

১ম অবস্থায় কাজ $E_1$

২য় অবস্থায় কাজ $E_2$

$\: \: \: \: \: \: \: \: \sf \frac{E_2}{E_1} = \frac{x_2 ^{2} }{x_1 ^{2} } \\ \sf \implies \: \frac{E_2}{E_1} = \frac{ {(2x)}^{2} }{ {x}^{2} } = \frac{4 {x}^{2} }{ {x}^{2} } = 4 \\ \therefore \: E_2 = 4E_1 \\ \\ \Delta \: E = E_2 - E_1 = 4E_2 - E_1 \\ \: \: \: \: \: \: \: = 3E_1 \\ \: \: \: \: \: \: \: = \frac{3E_1}{E_1} \times 100 \: \% \: \\ \: \: \: \: \: \: \: \: = 300\%$

Walikumus salam

alhamdulillah valo.

ami log data te dekhlam, kintu karo nam pelam na.

Answer 2

Answer:

please see my recent question

no di u can't leave pls

and yeah i will always pray for you