If the efficiency of a machine is equal to 85% and the work input is 10.0 , what is the work output?

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

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.