An astronaut circling the earth at an altitude of 400 km is horrified to discover that a cloud of space debris is moving in the exact same orbit as his spacecraft, but in the opposite direction. The astronaut detects the debris when it is 41 km away. How much time does he have to fire his rockets and change orbits?   In the solution manual it says to use the gravity formula, but why ? What hints at the fact that we must employ this formula? Thank you :)

Q: The asteroid 243 Ida has a mass of about 4.0×10¹⁶ kg and an average radius of about 16 km (it's not…

A: Mass , m = 4.0 x 1016 kgRadius , R = 16 km = 16 x 103 mTo find = a) launch speed of rock .…

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Q: Assume that a satellite of mass M is orbiting the earth at a distance r from the center of the earth…

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Q: onder Woman and Superman fly to an altitude of 1590 km, carrying between them a chest full of jewels…

A: Given:-           The radius of  the Earth =  6370 km            mass of Earth = 5.98×1024 kg,…

Q: Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy.…

A: Solution:   Given Values, Orbital speed of first planet (v1)=36.8 Km/s =36.8×103 m/sOrbital speed…

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A: Question 2: Finding Position and Velocity Vectors in ECI CoordinatesAnswer:-Given Orbital…

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Q: If the period of rotation of the planet is 20.3 hours, then what is the radius of the synchronous…

A: Have a look

Q: The space shuttle releases a satellite into a circular orbit 680 km above the Earth. How fast must…

A: Total energy of the satellite in the orbit is, T.E = GMm/2r Total energy of the satellite on earth…

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A: Hey there, since you have asked multiple questions we have solved the first three for you. Please…

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A: Given: Earth orbit's radial distance from earth is 7500 km Velocity is 8.784 Km/sec Radius of…

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A: Given data: The distance of the satellite above the earth is, h =535 km The radius of the earth is,…

Q: Three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the…

A: In this question we are given that three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and…

Q: Three uniform spheres of masses m1 = 3.00 kg, m2 = 4.00 kg, and m3 = 6.50 kg are placed at the…

A: This is a concept of resultant force.

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A: This problem can be solved using basic formula related to gravitation

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A: The orbital speed of the first planet, v1=44.6 km/s=44.6×103 m/s The orbital period of the first…

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A: The angular momentum is given by  L = mv r

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Q: 19

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!