A cube with a side length of 8 cm is placed on the ground of 100 square cm. Its pressure on the ground is 6.125 × 10 to the third power. The density of this solid body is?

First, the cubic power of his pressure is 6.125 × 10 * 8 * 8 square centimeter
=The cubic power of 6.125 × 10 * the negative cubic square meter of 6.4 * 10
=3.92*10N
His weight is 39.2n/10 = 3.92kg
We're looking for a density of 3.92 kg / 8 * 8 * 8 cubic centimeter
=3.92 / 5.12 * 10
=7656.25

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