Question Number 201135 by 281981 last updated on 30/Nov/23 Answered by MM42 last updated on 30/Nov/23 $${SX}+{SM}=\left({m}+{n}\right)\left(\mathrm{4}{a}−{b}\right) \\ $$$$\frac{\mathrm{9}}{\mathrm{5}}{SM}=\left({m}+{n}\right)\left(\mathrm{4}{a}−{b}\right) \\ $$$$\frac{\mathrm{9}}{\mathrm{5}}\left({SP}+{PQ}+{QM}\right)=\left({m}+{n}\right)\left(\mathrm{4}{a}−{b}\right) \\ $$$$\frac{\mathrm{9}}{\mathrm{5}}\left(\frac{\mathrm{4}{a}−{b}}{\mathrm{2}}\right)=\left({m}+{n}\right)\left(\mathrm{4}{a}−{b}\right) \\ $$$$\Rightarrow{m}+{n}=\frac{\mathrm{9}}{\mathrm{10}}\:\:\checkmark\:\:\left(\mathrm{1}\right)…
Question Number 201107 by behi834171 last updated on 29/Nov/23 $${two}\:{weels},\:{those}\:{have}\:{the}\:{same}\:{materials}, \\ $$$${with}\:{radii}:\boldsymbol{{r}}_{\mathrm{1}} =\mathrm{4}\:{and}\:\boldsymbol{{r}}_{\mathrm{2}} =\mathrm{14} \\ $$$${are}\:{starting}\:{to}\:{move}\:{on}\:{a}\:{surface},{with} \\ $$$${the}\:{same}\:{velocity},{from}:\boldsymbol{{x}}=\mathrm{0}\:{to}\:\boldsymbol{{x}}=\mathrm{20}. \\ $$$${the}\:{surface}\:{has}\:{no}\:{friction}. \\ $$$${wich}\:{one}\:{arrives}\:{faster}? \\ $$$${any}\:{informations}\:{needed}? \\…
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Question Number 199218 by Ppmaurya last updated on 29/Oct/23 $$\mathrm{in}\:\mathrm{a}\:\mathrm{triangle}\: \\ $$$$\mathrm{nmmm5gfkl} \\ $$$$\: \\ $$$$ \\ $$$$ \\ $$ Terms of Service Privacy Policy…
Question Number 199082 by samiksha last updated on 27/Oct/23 Answered by MathedUp last updated on 27/Oct/23 $$????\mathrm{I}\:\mathrm{can}'\mathrm{t}\:\mathrm{undertand}\:\mathrm{why}\:\mathrm{you}\:\mathrm{are}\:\mathrm{promoting}\: \\ $$$$\mathrm{the}\:\mathrm{School}\:\mathrm{here} \\ $$ Terms of Service Privacy…
Question Number 197550 by Erico last updated on 21/Sep/23 $$\mathrm{Calcul}\:\:\:\mathrm{I}=\underset{\:\mathrm{0}} {\int}^{\:\frac{\pi}{\mathrm{2}}} \frac{\mathrm{ln}\left(\mathrm{cost}\right)}{\mathrm{1}+\mathrm{sin}^{\mathrm{2}} \mathrm{t}}\mathrm{dt} \\ $$ Answered by qaz last updated on 22/Sep/23 $${I}=\int_{\mathrm{0}} ^{\pi/\mathrm{2}} \frac{{ln}\mathrm{cos}\:{t}}{\mathrm{2}−\mathrm{cos}\:^{\mathrm{2}}…
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Question Number 196145 by Erico last updated on 18/Aug/23 $$\mathrm{Calculer}\:\underset{\:\frac{\mathrm{1}}{\alpha}} {\int}^{\:+\infty} {e}^{−\alpha{t}^{\mathrm{2}} +\mathrm{2}{t}} {dt} \\ $$ Answered by Mathspace last updated on 20/Aug/23 $${t}=\frac{\mathrm{1}}{\alpha}+{x}\:\Rightarrow \\…
Question Number 195722 by Ari last updated on 08/Aug/23 Commented by Ari last updated on 08/Aug/23 Two metal blocks are placed on top of each other as in the figure. They are released in a vacuum, falling together freely under the action of the earth's gravitational field. What is the force acting on the 3 kg metal block during the fall Commented by mr W last updated on 08/Aug/23…