Greutatea unui cub cu latura de 11 cm este de 27 N. Calculaţi masa cubului (g=10N/kg). Cubul are o cavitate în interior. Ce vlum are cavitatea, dacă materialul din care este
confecţionat cubul are densitatea de 2,7 kg/cm'?
Care ar fi greutatea cubului, dacă s-ar umple cavitatea cu apă (p=1g/cm)?​

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.