.A satellite, msat 340 kg, is placed in a circular orbit to observe the surface
ID: 1776301 • Letter: #
Question
.A satellite, msat 340 kg, is placed in a circular orbit to observe the surface of Mars, Mylars = 6.42 x 101 kg, RMan = 3,396 km, from an altitude of, h = 104 km. What orbital speed is required of this satellite? (a) 3,403 km/s (b) 110.68km/s2 (c) 1,190 knw (d) 3.5km/s, (e) 6.42 km/s 12. A space station is designed in the shape of a large, hollow cylinder that is uniformly rotating. The outer radius of the station is, R = 75 m. With what period must the station rotate so that a person sitting on the outer wall es an "artificial gravity," i.e. an acceleration, of, ae 3.711 m/s (a) 20.21 see (b) 4.50 see (e) 28.25 see (d) 51.57 see (e) 12698 see 13. Adam, Becky, Carol, Danny, & Elmer are trying to balance on a plank (ignore plank mass) on a fulcrum. They are located at 0.5 m, 1.5 m, 2.5 m, 3.5 m, & 4.5 m. They mass 25 kg, 20 kg, 22 kg, 28 kg, & 21 kg. 100 kg (a) 1.5 m b 2.5 m (c) 3.0 m (d) 1/3 m (e) 1.0 mExplanation / Answer
11. r = 3396 + 104 = 3500 km = 3.5 x 10^6 m
for circular path,
G M m / r^2 = m v^2 / r
G M / r = v^2
v = sqrt[ (6.67 x 10^11)(6.42 x 10^23)/(3.5 x 10^6)]
v = 3497 m/s = 3.5 km/s
Answer should be (d) but it got units wrong.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.