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Water has a density of 1g/mL. There are four rocks that all have the same volume of 10 cubic centimeters. The mass for each of these rocks is given below. Which one of the four rocks will float when placed in water?

A.) 30 grams B.) 20 grams

C.) 12 grams D.) 8 grams

Explain why your answer is correct.

Sagot :

Answer:D

Explanation: Because it has the least amount of density in it. All the others are heavier, meaning they will sink. Just like if you drop a rock water and a feather, the feather will float.

Density def:

Density, mass of a unit volume of a material substance. ... Density offers a convenient means of obtaining the mass of a body from its volume or vice versa; the mass is equal to the volume multiplied by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M/d).

D has the least amount of density.
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