The Moon (mass = 7.35 x 1022 kg) is 3.84 x 108 m from the Earth
(mass = 5.98 x 1024 kg). How much
gravitational force do they exert on
each other?

Asher cycles 12 miles in 16 hours. what is his speed?

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)