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Maksim231197 [3]
4 years ago
6

A concrete cube of side 0.50

Mathematics
1 answer:
Sati [7]4 years ago
5 0
Density=mass/volume
Your volume is 0.5*0.5*0.5, which is 0.125m^3, andd you have the density (i'm not sure if you typed 2.0*103 or 2.0*10^3).
Anyway, potential energy=mass*gravitational pull*height
So you need to find mass
Rearrange the density formula
Density=mass/volume
Density*volume=mass
Once you find the mass, multiply it by 9.81 (gravitational pull) and 3m (height) to find potential energy
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Q1. The answer is To solve, you must divide both sides by 6

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It will take Harlon at least five years to complete his college degree. The key word is at least. This means that it can include number 5 as well. He may need 5 years, 6 years, 7 years,... Hence, t is greater than or equal to five.


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multiply both sides by 0.03
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Q5. The answer is 2.

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