If the mass of a proton is
and the mass of an electron is
Calculate the force of gravitation between:
(a) a proton and an electron.
(b) two electrons.
(c) two proton.
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Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?