Question Number 221264 by fantastic last updated on 28/May/25 $${A}\:{wooden}\:{block}\:{and}\:{a}\:{solid}\:{lead}\:{ball}\:{are}\: \\ $$$${placed}\:{in}\:{a}\:{container}\:{fully}\:{filled}\:{with}\:{water} \\ $$$${Now}\:{if}\:{the}\:{lead}\:{ball}\:{is}\:{placed}\:{on}\:{top}\:{of}\:{the} \\ $$$${floating}\:{wooden}\:{block},{what}\:{is}\:{the}\:{change} \\ $$$${in}\:{water}\:{level}\:{in}\:{the}\:{container}?? \\ $$ Commented by mr W last…
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Question Number 62534 by peter frank last updated on 22/Jun/19 Answered by tanmay last updated on 22/Jun/19 $${bi}\:{metal}\:{changed}\:{to}\:{a}\:{shape}\:{concave}.. \\ $$$$\:\:{as}\:\:\:\smallsmile\:{and}\:{touch}\:{upper}\:.\:{point}\:{to}\:{activate} \\ $$$${A}\:…{so}\:{A}\:{is}\:{cooler} \\ $$$${and}\:{B}\:{is}\:{heater}…{i}\:{think}\:{so} \\…
Question Number 59347 by Tinkutara last updated on 08/May/19 Commented by Tinkutara last updated on 08/May/19 B part only Commented by Tinkutara last updated on 09/May/19 Yes I am too sad with mine also. Got 4.5k. Yours? But I don't think it's a mistake by NTA, it's an era of tough competition!…
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Question Number 57114 by Tinkutara last updated on 30/Mar/19 Commented by ajfour last updated on 30/Mar/19 Commented by mr W last updated on 31/Mar/19 $${nice}\:{solution}\:{sir}!…
Question Number 52377 by Necxx last updated on 07/Jan/19 $${An}\:{iceberg}\:{is}\:{floating}\:{in}\:{sea}\:{water}. \\ $$$${The}\:{density}\:{of}\:{ice}\:{is}\:\mathrm{0}.\mathrm{92}{g}/{cm}^{\mathrm{3}} \\ $$$${and}\:{that}\:{of}\:{sea}\:{water}\:{is}\:\mathrm{1}.\mathrm{02}{g}/{cm}^{\mathrm{3}} . \\ $$$${What}\:\%\:{of}\:{ice}\:{will}\:\:{be}\:{below}\:{the} \\ $$$${water}? \\ $$ Commented by mr W…
Question Number 52273 by Necxx last updated on 05/Jan/19 $${A}\:{cuboid}\:{block}\:{is}\:{floating}\:{in}\:{a} \\ $$$${liquid}\:{with}\:{half}\:{of}\:{its}\:{volume} \\ $$$${immersed}\:{in}\:{the}\:{liquid}.{When}\:{the} \\ $$$${whole}\:{system}\:{accelerates}\:{upwards} \\ $$$${with}\:{an}\:{acceleration}\:{of}\:{g}/\mathrm{3}\:.\:{The} \\ $$$${fraction}\:{of}\:{volume}\:{immersed}\:{in} \\ $$$${the}\:{liquid}\:{will}\:{be} \\ $$$$\left.{a}\left.\right)\left.\mathrm{1}\left./\mathrm{2}\:{b}\right)\mathrm{3}/\mathrm{8}\:{c}\right)\mathrm{2}/\mathrm{3}\:{d}\right)\mathrm{3}/\mathrm{4} \\…