Three different square blocks materials of equal volume, namely aluminum, iron and lead with densities 2700 kg/m3, 7800 kg/m3, and 11300 kg/m3 , respectively are completely submerged into water. Which of the following is the correct statement about the buoyant force on each square block?

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.

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

The least penetrating form of radiation is