Question

Три шара из иридия, платины и золота имеют одинаковые размеры. Какой из них самый тяжелый? Самый легкий?(Плотности: иридия - 22400 кг/м3, платины - 21500 кг/м3, золота 19300 кг/м3.СРОЧНО!!!

Answer 1

Т.к. у них одинаковые размеры , значит больше тот, у кого больше плотность. 
Ответ: шар из иридия 
изи же 

Answer 2

The Density of the Three Spheres

To determine which of the three spheres made of iridium, platinum, and gold is the heaviest and which is the lightest, we need to compare their densities. The density of a material is defined as its mass per unit volume.

According to the given information, the densities of iridium, platinum, and gold are as follows:

- Iridium: 22,400 kg/m³ - Platinum: 21,500 kg/m³ - Gold: 19,300 kg/m³

Determining the Heaviest and Lightest Sphere

To determine which sphere is the heaviest, we need to compare the densities of the materials. The material with the highest density will have the most mass for a given volume.

Comparing the densities, we can see that iridium has the highest density at 22,400 kg/m³, followed by platinum at 21,500 kg/m³, and gold at 19,300 kg/m³.

Therefore, the iridium sphere is the heaviest among the three spheres.

Conversely, the gold sphere is the lightest among the three spheres.

Conclusion

In summary, the iridium sphere is the heaviest, while the gold sphere is the lightest among the three spheres made of iridium, platinum, and gold.

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