Jawaban fisika halaman 221 kelas 9 semester 1

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.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)