Physics 15200- HW5

# Physics 15200- HW5 - The pilot oF an aircraFt wishes to ³y...

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lai (yl8859) – HW05 – Ross – (15200) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 (part 1 oF 2) 10.0 points The orbit oF a Moon about its planet is ap- proximately circular, with a mean radius oF 6 . 08 × 10 8 m. It takes 18 days For the Moon to complete one revolution about the planet. ±ind the mean orbital speed oF the Moon. Answer in units oF m / s. 002 (part 2 oF 2) 10.0 points ±ind the Moon’s centripetal acceleration. Answer in units oF m / s 2 . 003 10.0 points A space station in the Form oF a large wheel, 283 m in diameter, rotates to provide an artificial gravity ” oF 9 . 5 m / s 2 For people located at the outer rim. What is the Frequency oF the rotational mo- tion For the wheel to produce this e²ect? Answer in units oF rev / min. 004 (part 1 oF 2) 10.0 points
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Unformatted text preview: The pilot oF an aircraFt wishes to ³y due west in a 24 km / h wind blowing toward the south. The speed oF the aircraFt relative to the air is 35 km / h. In what direction should the aircraFt head? Answer in degrees From due East, with counterclockwise positive, within the limits oF-180 ◦ to 180 ◦ . Answer in units oF ◦ . 005 (part 2 oF 2) 10.0 points What will be its speed relative to the ground? Answer in units oF km / h. 006 10.0 points A hunter wishes to cross a river that is 1 . 7 km wide and that ³ows with a speed oF 4 . 1 km / h. The hunter uses a small powerboat that moves at a maximum speed oF 11 km / h with respect to the water. What is the time necessary For crossing iF the boat goes directly across the river? Answer in units oF min....
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