Το καλάθι σου είναι άδειο.
4.2 kJ of work must be done by friction to raise the temperature of 1 kg of water by 1 °C
4.2 kJ of work must be done by friction to raise the temperature of 1 kg of water by 1 °C
Φύση και ζωή
6-η τάξη
43 kB
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