RÄspuns: d) densitatea celor doua corpuri este egala
ExplicaČie:
primul obiect are masa mā si volumul Vā
densitatea lui este Ļā = mā / Vā
al doilea obiect are densitatea Ļā = mā /Vā
dar mā = 4 mā si Vā = 4 Vā
Ļā = mā /Vā = 4mā / 4Vā = mā / Vā = Ļā