Why does the nucleus of an atom have a positive charge?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

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.

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?