Physics, 14.01.2020 03:31 aaliyahettorre
When you drop a pebble from height h, it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with twice speed?
Answers: 1
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Two red blood cells each have a mass of 9.0 multiply.gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries â2.50 pc of charge and the other â3.10 pc, and each cell can be modeled as a sphere 7.5 Ξm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer
Answers: 2
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Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement
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Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity
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Physics, 22.06.2019 13:00
What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud
Answers: 3
When you drop a pebble from height h, it reaches the ground with speed v if there is no air resistan...
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