How would the gravitational potential energy of planets A and B in the previous problem change if the star they were orbiting suddenly collapsed to half its size without its mass changing? (A) The gravitational potential would be four times larger (B) The gravitational potential would be two times larger (C) The gravitational potential would not change (D) The gravitational potential would be half as large (E) The gravitational potential would be one fourth as large

Q: Show that critical vel orbiting in a circular orbit very close to the surface of a planet of radius…

A: To show that- VC=2RπρG3Critical velocity of a body orbiting in a circular orbit close to planet is…

Q: In a spaceship accelerating at g, far from Earth’s gravity, how does the motion of a dropped ball…

A: Given:  A spaceship accelerating at g.

Q: What is the force of gravity on an 80kg astronaut in an orbit around the earth 500 miles above the…

A: Given data The mass of the astronaut is given as m2 = 80 kg. the elevation of astronaut=500 miles…

Q: For this kind of word problem, when do I know there is final and initial kinetic and gravitational…

A: To know the values like initial kinetic energy or the gravitational potential energy.Analyse the…

Q: Can we make an object gravity free on earth?

A: solution: GIven that Can we make an object gravity free on earth

Q: How is the gravitational force between two point masses affected when they are dipped in water…

A: The expression for the gravitational force acting between two point masses m1 and m2 is given by,

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A:

Q: What are the dangerous of gravitational waves

A: The dangerous of gravitational waves are mention below 1-When a gravitational wave gets emitted, the…

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A:

Q: according to the universal gravitational Newton's law, the gravity exists between any two massed…

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Q: If the speed of a satellite of mass “m" in orbit around Earth is “v" at a distance “T" from Earth's…

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Q: Why is the force of gravity between two light objects like yourself and your friend not too…

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Q: Why will the gravitational field intensity increase on the surface of a shrinking star?

A: Given:  Gravitational field intensity

Q: The escape velocity of a projectile from the earth is approximately ___________ a) 7km/sec b)…

A: B

Q: Using planetary motion, prove that the planet always being bound to the attracting solar center and…

A: For a planet revolving in its orbit, centripetal force required for revolving is provided by the net…

Q: Given the resonance of the planets around the star Kepler 223 of 8:6:4:3 how much faster does the…

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Q: What would happen to the distance between Jupiter and the Sun if the Sun shed mass onto Jupiter?

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Q: Discuss briefly some problems of weightlessness.

A: Weightlessness is the complete or absence of the sensation of weight. In response to an extended…

Q: Describe what you notice about the values for the total energy for planets in orbit, and obtain why…

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Q: Is this equation = to newtons law of universal gravity? and we ignore mass because it does not…

A:

Q: what are Geostationaty Satellites? Callculate the distance of a Satellite, which in rediding diredsy…

A: Satellite: It's an object or scientific instrument that is orbiting around sun, earth & other…

Q: needed to leave a

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Q: If an astronaut who is orbiting the planet at a radius of 3R wants to move their orbit to a radius…

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Q: Can the reduced mass of two-bodies be greater than each of the individual masses? Why or why not?

A:

Q: A star 10 light-years away explodes and produces gravitational waves. How long will it take these…

A: Given:  Distance, d = 10 light years  velocity , c = 3 x 108 m/s

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Q: (U2 marks) (ii) Energy required to launch a satellite of mass m from earth's surface in a circular 5…

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Q: The gravitational force between masses M1 and M2 separated by a distance R is F. What will be the…

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Q: A 8,987 kg point mass and a 3,812 kg point mass are separated by 1 cm. Calculate the size of the…

A: The gravitational force is given by  F =G m m'r2

Q: Why are gravitational waves so difficult to detect?

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Q: Hi, the question is attached   thankyou!!!???

A: the acceleration due to gravity is

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.