College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Chapter 6, Problem 20CQ
Two friends are having a conversation. Anna says a satellite in orbit is in freefall because the satellite keeps falling toward Earth. Tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/s2. Who do you agree with and why?
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Two friends are having a conversation. Anna says a satellite in orbit is in free fall because the satellite keeps falling toward Earth. Tom says a satellite in orbit is not in free fall because the acceleration due to gravity is not 9.80 m/s2 . Who do you agree with and why?
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Chapter 6 Solutions
College Physics
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- (a) Find the magnitude of the gravitational force between a planet with mass 7.50 1024 kg and its moon, with mass 2.70 1022 kg, if the average distance between their centers is 2.80 108 m. (b) What is the acceleration of the moon towards the planet? (c) What is the acceleration of the planet towards the moon?arrow_forward(a) What is the acceleration due to gravity on the surface of the Moon? (b) On the surface of Mars? The mass of Mars is 6.4181023 kg and its radius is 3.38106 m.arrow_forwardA spy satellite is in circular orbit around Earth. It makes one revolution in 6.90 h. Mass of Earth is 5.974 × 1024 kg, radius of Earth is 6371 km and Gravitational constant G is = 6.674 × 10−11 N·m2/kg2. A) How high above Earth’s surface is the satellite? km B) What is the satellite’s acceleration? m/s2arrow_forward
- Q2, Q3, and Q5arrow_forwardA satellite is traveling around a planet in a circular orbit with radius R. It moves in a constant speed of v = 1.1 × 104 m/s. The mass of the planet is M = 6.04 × 1024 kg. The mass of the satellite is m = 1.2 × 103 kg. a)Enter an expression for the radius R in terms of G, M and v. b)Calculate the value of R in meters. c)Enter an expression for the gravitational potential energy PE in terms of G, M, m, and R.arrow_forwardA scientist is on a 3.07×103 high mountain top with a gravimeter that records the free fall acceleration. What is the difference between the acceleration due to gravity at sea level and the acceleration due to gravity he will record? Take the radius of the earth to be 6370000 m and the mass of the earth to be 5.98×1024 kg. 0.0189 m/s2 3.02×104 m/s2 0.00947 m/s2 9.82 m/s2arrow_forward
- Europa, a satellite of Jupiter, has an orbital diameter of 1.34 x 109 m and a period of 3.55 days. What is the mass of Jupiter? (G=6.67 x 10-11 N . m2/kg2)arrow_forwardThe following questions relate to other Moons in our solar system. a. Europa is a Galilean satellite of Jupiter, where there is most probably a liquid water ocean underneath a thick cover of ice due to internal heating caused by the interaction with Jupiter and the other Galilean moons . The orbital period of Europa is P = 3.551 days; the semimajor axis of its orbit is a = 670 900km. Given this information, find the mass of Jupiter. b. Deimos is the outer moon of Mars. The orbital period of Deimos is P = 1.263 days; the semimajor axis of its orbit is a = 23 463.2km. Find the mass of Mars.arrow_forwardThe value of g at Earth’s surface is about 10 m/s2. What is the value of g at a distance of twice Earth’s radius?arrow_forward
- Can you show me how to solve this?arrow_forwardCommunications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. These are called geosynchronous orbits. The altitude of a geosynchronous orbit is 3.58 x 10^7m. a. What is the period of a satellite in a geosynchronous orbit? b. What is the apparent weight of a 2000 kg satellite in a geosynchronous orbit?arrow_forwardA spy satellite is in circular orbit around Earth. It makes one revolution in 8.90 h. Mass of Earth is 5.974 × 1024 kg, radius of Earth is 6371 km and Gravitational constant G is = 6.674 × 10−11 N·m2/kg2. a. How high above Earth’s surface is the satellite? answer in km b. What is the satellite’s acceleration? answer in m/s^2arrow_forward
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