47. Two identical planets are orbiting the sun. The mean radius of the orbit of the second planet is 4times the mean radius of the orbit of the first planet. Compared to the orbital period of the first planet,the period of the second planet will bea. one-fourth as greatb. one-half as greatc. 8 times greaterd. 4 times greater48. For planets orbiting the sun, the ratio of the mean radius of the orbit cubed to the orbital period ofmotion squared isa. greatest for the most massive planetb. greatest for the least massive planetc. Constantly changing as a planet rotatesd. the same for all planets

47. The mean radius of the the orbit of the second planet is 4 times the mean radius of the orbit of…

Answered: 47. Two identical planets are orbiting…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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BACKGROUND An ingenious solution to the Earth's circumference occured in 230 BC. Eratosthenes, a Greek geographer, mathematician, music theorist, poet, astronomer, and philosopher, was reading in the Library of Alexandria when he noticed an account for a deep well near Syene (now Aswan), some distance to the south (800 km) in which at high noon on the longest day of the year the bottom of the well was fully illuminated by the Sun. Eratosthenes exclaimed "Ah-ah!" (or something like that), "I can solve for the circumference of the Earth!". In his mind's eye, Eratosthenes could see that at Syene, at the moment when the bottom of the well was fully lit, the Sun must have been at the Zenith (directly overhead). Yet he knew that at the same moment in Alexandria vertical objects (like a tower, pole) cast shadows. Here is the experiment perfomed by Eratosthenes (see the picture below). • He erected a vertical pole at Alexandria (A) and measured the angle of its shadow at the moment when the…
2. A comet is traveling in outer space with a velocity of 2000 m/s. How long will it take to travel 300,000 meters? 2000 s 0.0006 s 6,000,000 s 150 s
6. A synchronous orbit is an orbit about a planet's equator that always remains above the same spot of the planet because the synchronous orbit matches the planet's rotational period. The pilot of the Mars spacecraft (which was named Cheetah 1 and had a 9556 kg mass) asked Tarzan to calculate the altitude of a synchronous orbit so they could remain over a particular geological feature on the Martian equator. Calculate the altitude above the Martian equator using the data above and Johannes Kepler's genius.
Only 17,18,19 please
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Describe your approach to the calculation of the period of a satellite moving in the gravitational field of a planet with mass M. a. Use Newton's 3rd law. b. Use Newton's law of universal gravitation. C. Use Kepler's 3rd law. d. Use Newton's 2nd law. e. Use Newton's 1st law.
A 0.060-kg tennis ball, moving with a speed of 4.1 m/s, has a head-on collision with a 0.10-kg ball initially moving in the same direction at a speed of 3.5 m/s. Part A Assuming a perfectly elastic collision, determine the speed of each ball after the collision. Enter your answers numerically separated by a comma. Express your answers using two significant figures. VG| ΑΣΦ Vtonnis ball Submit Vball = Request Answer www ? m/s
According to Lunar Laser Ranging experiments the average distance LM from the Earth to the Moon is approximately 3.85 × 10° km. The Moon orbits the Earth and completes one revolution in approximately 27.5 days (a sidereal month). How can the mass of the Earth be calculated using the information above? Select the correct statements. Select one or more: O a. Use Newton's third law. O b. Use Newton's first law. c. Use Coulombs law. O d. Use Newton's second law.
1. Moon is at the distance 384400 km from Earth and orbits the Earth every ~28 days. If the radius of the Moon is 1737 km (consider it to be spherical), what is the area of the moon as measured by the observer on Earth? (Hint: Length contraction)
Leave the moon's amplitude (semi-major axis) constant. How does the changing of the moon's orbital period change the calculated value of the planet's mass? a. Increasing the orbital period results in a higher calculated value for the mass of the planet. Decreasing the orbital period results in a lower calculated value for the mass of the planet. b. Increasing the orbital period results in a lower calculated value for the mass of the planet. Decreasing the orbital period results in a higher calculated value for the mass of the planet. c. Increasing the orbital period results in a higher calculates value for the mass of the planet. Decreasing the orbital period results in a higher calculated value for the mass of the planet.
3. What is the gravitational field strength at the surface of Venus?
4

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