A 28.8 kg brick is pushed across the floor with a force of 528 N. There is sliding friction. The acceleration of the brick is 7.84 m/s/s. Calculate the sliding friction force.

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.

Which two particles are found in the center of an atom

The energy produced as a result of this flow of electrons from atom to atom is called