Se ridică un corp cu greutatea de 500Kg, cu un scripete fix, iar apoi cu un scripete mobil. (2p) a. Reprezentaţi cele două situaţii indicînd sensul forţelor. b. Determinaţi forţa activă.

Which type of circuit is becoming more common in residential electrical design and construction? a. hazardous-area circuit b. three-phase circuit c. 480-volt circuit d. communication circuit

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

How does the formation of intrusive and extrusive igneous rocks differ?