THE ANSWER SHOWN IN RED IS WRONG Halliday, Fundamentals of Physics, 10e Calculus
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THE ANSWER SHOWN IN RED IS WRONG
Halliday, Fundamentals of Physics, 10e Calculus-based Physics for Scientists & Engineers (PHYS 2 ice Assignment Gradebook ORION nent MESSAGE MY INSTRUCTOR FULL SCREEN PRINTER VERSION BACK Chapter 13, Problem 017 Your answer is partially correct. Try again. (a) What will an object weigh on the Moon's surface if it weighs 200 N on Earth's surface? (b) How many Earth radii must this same object be from the center of Earth if it is to weigh the same as it does on the Moon? Take into account the Table below, if necessary. Radius Body Ceres Earth's moon Earth Jupiter Sun Sirius Bb Neutron star (kg) 1.17× 1021 7.36 × 1022 5.98× 1024 1.90× 1027 1.99× 1030 2 x 100 2× 1030 3.8 x 105 1.74 × 106 6.37 x 100 715 × 107 696 × 108 1 × 107 1 × 104 (a) N 33.33 (b) N 4S Units Earth radii Click i f you would like to Show Work for this question: lic 2000-2017 lahn Wiley &Sons; Inc. All Rights Reserved. A Division of lahn Wilpy &Sons; Inc VersExplanation / Answer
(A) Weight = G M m / R^2
G Mearth m / Re^2 = 200
and G Mmoon m / Rm^2 = W
W / 200 = (7.36 x 10^22) (6.37 x 10^6)^2 / (5.98 x 10^24)(1.74 x 10^6)^2
W / 200 = 0.165
W = 33 N
(B) (7.36 x 10^22) (r)^2 / (5.98 x 10^24)(1.74 x 10^6)^2 = 1
r = 1.568 x 10^7 m
r/ R = 2.46 ...Ans
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