The fact that satellites can maintain their motion and their distance above the Earth is fascinating to many. How can it be? What keeps a satellite up?

Q: What does the work–energy theorem say about the speed of a satellite in circular orbit?

A: Introduction: According to the work-energy theorem, the work done is equal to the change in the…

Q: Does a speed of falling object depend on its mass? Does the speed of satellite in orbit depend on…

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Q: Discuss why a satellite can orbit at 5 km above the Moon, but not at 5 km above Earth.

A: The earth's atmosphere is surrounded by air molecules about 600 km above the earth's surface. And at…

Q: Can a satellite coast in a stable orbit in a plane that doesn’t intersect the Earth’s center? Defend…

A: A satellite is able to revolve around a planet when the centripetal force on the planet is balanced…

Q: At what point in its elliptical orbit about the Sun is the acceleration of Earth toward the Sun at a…

A: Answer The radial acceleration is maximum when earth is at perihelion (nearest to sun) The radial…

Q: What is the shape of the orbit when the velocity of the satellite is everywhere perpendicular to the…

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Q: What is the escape speed of a satellite located at the Moon’s orbit about Earth? Assume the Moon is…

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Q: A friend says that, since Earth’s gravity is so much stronger than the Moon’s gravity, rocks on the…

A: The correct statement is that "earth's gravity on earth's surface" is much stronger than "moon's…

Q: You wish to put two satellites into a circular orbit of h above the earth's surface. One satellite's…

A: The circling speed of the satellites around the Earth is given by,

Q: If a satellite circled Earth at a distance equal to the Earth– Moon distance, how long would it take…

A: We are given that,

Q: A satellite of small mass burns during its descent and not during its ascent. Explain.

A: As we know that the air resistance is directly proportional to the velocity. During the descent the…

Q: Another friend says that the Moon’s gravity would prevent rocks dropping from the Moon to Earth, but…

A: Since the distance between the Moon and the Earth is very large, thus, the Earth’s gravitational…

Q: Why satellites are in motion in earth orbit?

A: Launching satellite in to earth orbit is very similar to a projectile motion.In projectile motion if…

Q: Another friend says that the Moon’s gravity would prevent rocks dropping from the Moon to Earth, but…

A: Solution:

Q: Why is the centrifugal force talked about so much if it's not real?

A: Centrifugal force is a fictitious outward force that arises in a rotating frame of reference. It is…

Q: The positions of a satellite in elliptical orbit are indicated. Rank these quantities from greatest…

A: a. Gravitational force: A > B > C > D b. Speed: A > B > C > D c. Momentum: A >…

Q: The motion of satellite is based on which force?

A: Motion of satellite around a planet is governed by the force of gravity.

Q: Is the sum of kinetic and potential energies a constant for satellites in circular orbits, in…

A: Determining if the sum of potential energy and kinetic energy is constant or not in circular orbits:

Q: Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of…

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Q: When going from a smaller circular orbit to a larger one, why do we speed up twice but end up with a…

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Q: Why is work done by the force of gravity on a satellite when it moves from one part of an elliptical…

A: Work done while moving in a circular path will be zero but work done while moving in an elliptical…

Q: Calculate the velocity of escape of an artificial satellite orbiting the earth on a circular orbit…

A: Given data: The distance above Earth's surface is h=150 miles.

Q: why do we launch at a higher altitude to reduce the kinetic energy required to reach orbit?

A: The kinetic energy required to launch an object into space is proportional to the resistance offered…

Q: A spy satellite is placed in an orbit at an altitude of 1/3 r. Calculate the speed of the satellite…

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Q: Low Orbit Satellites (LOS) are typically at altitudes between 160 km and 1000 km high so as to be…

A: Low orbit satellites:

Q: People sometimes ask, “What keeps a satellite up in its orbit around the Earth?” How would you…

A: To give factor that keeps a satellite up in its orbit around the Earth.

Q: What happens to an Earth satellite's period when the satellite is placed into a higher orbit?

A: There are essentially three types of Earth orbits: high orbit, medium orbit, and low Earth orbit.…

Q: At what part of elliptical orbit does an Earth satellite have the greatest speed? The lowest speed?

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Q: One student argues that a satellite in orbit is in free fall because the satellite keeps falling…

A: I am going with first statement, because satellite in an orbit is constantly in free fall. But all…

Q: For orbits of greater altitude, is the period of revolution of satellite longer or shorter?

A: Orbital speed of any satellite can be given using Kepler’s 2nd law of  motion which explain square…

Q: One student argues that a satellite in orbit is in free fall because the satellite keeps falling…

A: Satellites are those bodies that orbit around a planet or a star in a particular orbit with a…

Q: What is the escape speed (in m/s) of a satellite located at the Moon's orbit about Earth? Assume the…

A: Given data- satellite located at the Moon's orbit about earth. Mass of earth ME=5.972×1024 kg…

Q: Comets travel oround the sun in elliptical orbits with targe eccentricity. If a comet has speed 2.2…

A: Given data: Speed of the comet v=2.2×104 m/s. Initial Distance ri =2.5×1011 m. Final distance…

Q: 1.2. Calculate the altitude at which an artificial satellite orbiting in the equa- torial plane can…

A: According to Bartleby guidelines, I can answer the very first question in multiple types. If you…

Q: When a satellite is placed into a higher orbit, what happens to its period?

A: The time period of a satellite,

Q: Draw a free body diagram for a satellite in an elliptical orbit showing why its speed increases as…

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Q: Add a particular point in its orbit a satellite in an elliptical orbit has a gravitational potential…

A: Given : At a particular point,            Gravitational potential energy, U1 = 5000 MJ ( it is…

Q: A satellite is moving in a nearly circular orbit around the earth? Show that the air friction will…

A: Consider a satellite orbiting around the Earth at an altitude. Due to the air friction provided by…

Q: Satellite is now in the solid line orbit. At what point is the satellite moving the fastest. B Earth…

A: Given- A satellite moves in a circular solid line orbit of earth A point - nearest point from the…

Q: Discuss why a satellite can orbit at 5km above the Moon, but not at 5km above Earth.

A: An object which is revolving around an object rather than falling into it is known as a satellite of…

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!