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Question

Over what range of specific weights will a homoge- neous cube float with sides horizontal and vertical? please explain.

Solution

x substance xxxxxx xx xx is xxxx dense, xx xxx xxxx mass xxx unit xxxxxx, xxxx xxxxx components xx a xxxxxxx. xxx xxxxxxx, if yxx toss x xxxxxxx xx rocks xxxx a xxxxxx xx xxxxx, the xxxxx, which xxx xxxxx xxxxxxxx to xxx water, xxxx xxxx. xxx water, xxxxx is xxxx xxxxx xxxx the xxxxx, will xxxxx. xxxxxxxxy, xxx rocks xxxx the xxxxx xxx xx the xxy, or xxxxxxxx xx. xxx an xxxxxx to xx xxxx xx float, xx has xx xxxxxxxx x weight xx fluid xxxxx xx xxx own xxxxxx.

Water xxxxxxx xxx xxxxxxx density xx 4C (xxx). xx xx cools xxxxxxx and xxxxzxx xxxx xxx, it xxxxxxxy becomes xxxx xxxxx. xx the xxxxx hand, xxxx xxxxxxxxxx xxx most xxxxx in xxxxx xxxxx (xxxzxx) state xxxx in xxxxx xxxxxx xxxxx. Water xx different xxxxxxx xx xyxxxxxx bonding.

x water xxxxxxxx xx xxxx from xxx oxygen xxxx xxx xxx hydrogen xxxxx, strongly xxxxxx xx xxxx other xxxx covalent xxxxx. xxxxx xxxxxxxxx are xxxx attracted xx xxxx xxxxx by xxxxxx chemical xxxxx (xyxxxxxx xxxxx) between xxx positively-charged xyxxxxxx xxxxx xxx the xxxxxxxxxy-xxxxxxx oxygen xxxxx xx xxxxxxxxxxx water xxxxxxxxx. As xxxxx xxxxx xxxxx 4C, xxx hydrogen xxxxx xxxxxx xx hold xxx negatively xxxxxxx xxyxxx xxxxx apart. xxxx produces x xxyxxxx xxxxxxx, which xx commonly xxxxx xx 'xxx'.

Ice xxxxxx because xx xx xxxxx 9% xxxx dense xxxx xxxxxx xxxxx. In xxxxx words, xxx xxxxx xx about x% more xxxxx xxxx xxxxx, so x liter xx xxx xxxxxx less xxxx a xxxxx xxxxx. xxx heavier xxxxx displaces xxx xxxxxxx xxx, so xxx floats xx xxx xxx. One xxxxxxxxxxx of xxxx xx xxxx lakes xxx rivers xxxxzx xxxx xxx to xxxxxx, allowing xxxx xx xxxxxxx even xxxx the xxxxxxx xx x lake xxx frozen xxxx. xx xxx sank, xxx water xxxxx xx xxxxxxxxx to xxx top xxx xxxxxxx xx the xxxxxx temperature, xxxxxxx xxxxxx xxx lakes xx fill xxxx xxx xxx freeze xxxxx.

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