In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun that occupy less space than our moon. Suppose that one of these black holes has a mass of 1x10^3 suns and a radius equal to one-half the radius of our moon. What is the density of the black hole in g/cm^3? The radius of our sun is 7.0x10^5 km, and it has an average density of 1.4x10^3 kg/m^3. The diameter of the moon is 2.16x10^3 miles.

Q: Imagine a very massive black hole with a small planet in orbit about it. The planet, has an orbital…

A: Time period (T) = 9.7 days = 9.7×24×60×60 seconds = 838080 seconds Orbital radius (R) = 5.97×108 m…

Q: As a person approaches the Schwarzschild radius of a black hole, outside observers see all the…

A:

Q: In the context of relativity, what is an "event"?  Give a specific example of an event and provide…

A: In the terms of relativity, event is the instantaneous physical situation or occurrence associated…

Q: Part A A star with the mass (M = 2.0 × 1030 kg) and size (R = 3.5 x 10³ m) of our sun rotates once…

A: Angular momentum is a vector quantity that means it has both magnitudes as well as direction to it.…

Q: What is the Schwarzschild radius of a black hole that has a mass eight times that of our Sun? Note…

A: Given:  Mass of our Sun , Ms = 1.989 × 1030 kg             Mass of black hole will be M  = 8Ms…

Q: A supernova explosion of a 2.49 x 10³1 kg star produces 1.04 × 1044 J of energy. a) How many…

A: Using mass energy relation,

Q: The Andromeda Galaxy has a mass of around 4 x 10* 42 kg and is 2.4 x 10*22 m away. What is your…

A: Given data: Mass of galaxy (M) = 4×1042 kg Distance from centre of mass (r) = 2.4×1022 m

Q: What size would you have to squeeze Jupiter down to in order to turn it into a black hole? Use a…

A: The mass of the Jupiter is M=1.898×1027 kg. Assume the speed of the light as c=3×108 m/s. Assume the…

Q: Centauri A and Centauri B are binary stars with a separation of 3.45 x 10¹2 m and an orbital period…

A: The distance of separation is d= 3.45 x 1012mThe orbital perion is T = 2.52 x 109s

Q: Suppose that the Earth were collapsed to the size of a small ball bearing, becoming a black hole.…

A: Mass of earth M = 6 × 1024 Kg  Gravitation constant G = 6.67 × 10-11 Nm2 /kg

Q: The star Sirus A has a mass of 2.06 MO and a radius of 1.71 RO, where M0 is the mass of the Sun…

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Q: Two black holes collide and merge into one. Which of the following statements is true? The total…

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Q: The star Sirius A is 8.66 light-years from Earth. Imagine a spaceship that travels from Earth to…

A: Time dilation or contraction of time is the concept from the relativity. When observed from the…

Q: Convert 9.021 x 1048 kg to Jupiter Masses (MJ). The mass of Jupiter is known as MJ = 1.898×1027 kg.…

A: Given mass M = 9.021 x 1048 kg also 1 MJ = 1.898×1027 kg.

Q: Convert 1.39 x 10^9 kilograms to Jupiter Masses, MJ. The mass of Jupiter is known as MJ = 1.898×1027…

A:

Q: In 1999 scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of…

A: The mass of black hole,

Q: During most of its lifetime, a star maintains an equilibrium size in which the inward force of…

A: Angular momentum is a vector quantity that means it has both magnitudes as well as direction to it.…

Q: Two students of opposite sex with masses 70.0kg and 52.0kg respectively are sitting 1.50m apart…

A:

Q: The Schwarzschild radius is the distance from an object at which the escape velocity is equal to the…

A:

Q: The evil team of Ms. Moonstruck and Mr. Luny intend to deflect the Moon from its orbit around Earth…

A: Given Force = 2330 NDistance = 7.7×106 mMass of the moon =  7.36×1022 kg

Q: (a) Determine the total force on the spacecraft. N (b) What is the difference in the gravitational…

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Q: The evil team of Ms. Moonstruck and Mr. Luny intend to deflect the Moon from its orbit around Earth…

A: Given data, Force needed, F = 6570 N mass of the moon, m = 7.36×1022 kg Let the mass of the black…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.