Physics, 31.07.2019 17:40, amulets2274

The pictures below show a bottle made of plastic and a block made of concrete.

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Physics, 21.06.2019 15:10, emilyphillips1681

Consider the following problem: a box with an open top is to be constructed from a square piece of cardboard, 3 ft wide, by cutting out a square from each of the four corners and bending up the sides. find the largest volume that such a box can have.

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Physics, 22.06.2019 19:00, emj617

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?

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Physics, 23.06.2019 04:00, kingyogii

Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.

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Physics, 23.06.2019 09:30, TheRunningPotatoe245

What would occur if the index of refraction of a material was less than n=1? the speed of light would increase to a speed larger than the maximum speed of light in a vacuum. the light wave would not bend at all though the material. the light wave would not be able to refract and would instead reflect off of the material. the speed of light would reduce to values close to 0 m/s.

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The pictures below show a bottle made of plastic and a block made of concrete.
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