Question Number 226714 by mr W last updated on 11/Dec/25 Commented by mr W last updated on 11/Dec/25 $${a}\:{dry}\:{rope}\:{with}\:{mass}\:{m}\:{and}\:{length}\:{l}\: \\ $$$${hangs}\:{free}\:{from}\:{two}\:{points}\:{with} \\ $$$${distance}\:{b}\:{to}\:{each}\:{other}.\:{for}\:{some} \\ $$$${reason}\:{the}\:{right}\:{half}\:{of}\:{the}\:{rope}\:…
Question Number 226601 by mr W last updated on 07/Dec/25 Answered by mr W last updated on 07/Dec/25 $${mass}\:{of}\:{particle}={m} \\ $$$${total}\:{mass}\:{of}\:{earth}={M}_{{E}} \\ $$$${radius}\:{of}\:{earth}={R} \\ $$$${F}=\frac{{GmM}}{{x}^{\mathrm{2}}…
Question Number 226572 by mr W last updated on 05/Dec/25 Answered by mr W last updated on 07/Dec/25 Commented by mr W last updated on…
Question Number 226538 by mr W last updated on 02/Dec/25 Answered by mr W last updated on 07/Dec/25 $${length}\:{of}\:{cylinder}\:={L} \\ $$$${cross}−{section}\:=\mathrm{2}{RL} \\ $$$${at}\:{speed}\:{v} \\ $$$${Mv}=\left({M}+\mathrm{2}{RLnmvdt}\right)\left({v}+{dv}\right)…
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Question Number 226442 by mr W last updated on 28/Nov/25 Commented by mahdipoor last updated on 29/Nov/25 $$\mathrm{for}\:\mathrm{mass}\:\mathrm{M} \\ $$$$\Sigma\mathrm{F}=\mathrm{ma}\:\:\left(\mathrm{for}\:\mathrm{CM}\right) \\ $$$$\begin{cases}{\mathrm{A}=\left(\overset{..} {\mathrm{x}}−\alpha.\mathrm{l}.\mathrm{cos}\theta−\omega^{\mathrm{2}} .\mathrm{l}.\mathrm{sin}\theta\right)\mathrm{M}}\\{\mathrm{B}=\left(−\alpha.\mathrm{l}.\mathrm{sin}\theta+\omega^{\mathrm{2}} .\mathrm{l}.\mathrm{cos}\theta\right)\mathrm{M}}\end{cases}…
Question Number 226293 by ajfour last updated on 25/Nov/25 $${A}\:{hemispherical}\:{bowl}\:{of}\:{radius}\:{R} \\ $$$$\:{with}\:{maimum}\:{water}\:{in}\:{it}\:{without} \\ $$$${needing}\:{to}\:{spill}\:{is}\:{spinning}\:{with}\:{the} \\ $$$${content}\:{at}\:{constant}\:\omega.\:{Find}\:{volume} \\ $$$${of}\:{water}\:{in}\:{bowl}. \\ $$$$ \\ $$ Commented by fantastic2…
Question Number 226278 by mr W last updated on 24/Nov/25 Answered by mr W last updated on 24/Nov/25 Commented by mr W last updated on…
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Question Number 226217 by mr W last updated on 22/Nov/25 Commented by mr W last updated on 22/Nov/25 Commented by fantastic2 last updated on 22/Nov/25…