Chapt. 14Gravity127014 qmult 00686 1 3 3 easy math: fiducial-value orbital speed 2 (fo2)Extra keywords:A test follow-up to fo1 !!! It can only be given as a follow-up!!!29. Pluto’s mean radius of orbit around the Sun is 39.48168677 AU (Wikipedia: 2007sep25), where1 AU is the mean radius of the Earth’s orbit around the Sun. What approximately is Pluto’sorbital speed?a) 1200 km/s.b) 30 km/s.c) 4.7 km/s.d) 0.75 km/s.e) 200 km/s.014 qmult 00720 1 1 3 easy memory: gravitational PE of a point mass30. The inter-object gravitational potential energy of two spherically symmetric masses of massMandmwith center-to-center distancer(withPEforr=∞being zero as is conventional) isgiven by:014 qmult 00730 1 1 1 easy memory: grav PE localizable distribution
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