Question

Find the number of steel ball bearings, each of
diameter 0.7 cm, which can be made from 1 kg of
steel, given that 1 cm' of steel has a mass of 7.85 g.​

Answer 1

If diameter is 0.7 cm, then radius, r = 0.35 cm. V= 4/3 x 3.4 x(0.35)^3 = 0.18 cm^3. The weight then will be 0.18 x 7.85 g = 1.413 g/one bearing. Total amount of bearings: 1kg = 1000 g/1.413 = 707.7, or 707 bearings.

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Answer 2

Answer:

707 ball bearings

Step-by-step explanation:

the answer is given above