(show your work) 14. We would like to compare the angular momentum of Mars about
ID: 2303467 • Letter: #
Question
(show your work)
14. We would like to compare the angular momentum of Mars aboutits axis of rotation with that of Earth's. The mass of Mars is 11% that of Earth, with a radius 53% that of Earth. and a rotational period 103% that of Earth. Assuming both planets to be uniform spheres calculate the ratio of the angular momentum of Mars to that of Earth A) 6.0 x 10 B) 5.7 x 10 C) 3.2 x 10 D) 3.0 x 10 2 E) 3.1 x 10 15. Large meteors can impact the earth with speeds kmh. If such a meteor were to impact at a point on the plane of Earth's equator, resulting in a change of Earth's of 80,000 insignificant change, angular momentum by so x 1012 kg m2/s (an thankfully), calculate the mass of the meteor. Ohe radius of Earth 6.38 x 10 m. A) 3.4 B) 5.6 x 102 kg C) 3.6 x 103 kg D) 4.5 x 104 kg E) 56 kg 16. A man stands on the center of a platform that is rotating on frictionless bearings at a speed of 1.00 radvs. originally his arms are outstretched and he holds a 4.54-kg mass in each hand. He then pulls the weights in toward his body. Assume the moment of inertia of the man, including his arms, to remain constant at 5.42 kg m If the original distance of the weights from the axis is 0.914 m and their final distance is 0.305 m, the final angular velocity is A) 1.14 rad/s B) 1.27 rad/s C) 1.58 rad/s D) 2.08 radus E) 7.70 rad/sExplanation / Answer
14. option B
15. option C
16. option C
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.