n 1999, scientists discovered a new class of black holes with masses 100 to 10000 times the mass of our sun, but occupying 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 7.0x10^5km and it has an average density of 1.4x10^3kg/m^3. The diameter of the moon is 2.16x10^3 miles. Note: the volume of a sphere is V=4/3 pie r^3

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: A 200.0 kg rocket is launched directly upward from Earth at 9.00 km/s (rE = 6.38 x 10^6m, mE =…

A: Answer the following question is

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: A laser rangefinder is locked on a comet approaching Earth. The distance g(x), in kilometers, of the…

A: Given: funtion g(x)= 350000*cosec((π/30) *x) range x=[0,35] 1. value of function for x= 0+ , g( 0+)…

Q: If the mass and radius of Mars are 6.39 × 1023 kg and 3.4 × 106 m, respectively, what is the escape…

A:

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…

A:

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

A:

Q: A star with the mass (m=2.0×10^30kg) and size (R=3.5×10^8m) of our sun rotates once every 35.0 days.…

A:

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

A:

Q: A star with mass m = 2.624 x 1030 kg revolves around the center of mass of the Milky Way galaxy in…

A: Given, Radius of orbit is 3.7*1020 meter and velocity is 400,000 m/s

Q: The acceleration due to gravity of planet X is 7.80m/s2, and its radius is 5,900 km. The…

A: ANSWER               E) 4.07×10^24kg

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

A:

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…

Q: A number of gas giant planets orbiting other stars at distances less than 1 A.U. have been…

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

Q: What is the final angle θf that the ball's velocity vector makes with the negative y axis?

A: Given, A ball of mass m moving with velocity v→i strikes a vertical wall. The angle between the…

Q: Black holes have three layers: the outer and inner event horizon, and the singularity. The event…

A: Black holes are fascinating and mysterious objects in space. They have three main parts: the outer…

Q: The following quotation is taken from the article "Quantum Black Holes", by Bernard J. Carr and…

A: Given that: The total time for a black hole to evaporate away proportional to the cube of itsinitial…

Q: A 4.6 kg rocket is launched directly upward from Earth at 9.00 km/s (rE = 6.38 x 10^ 6m, mE = 5.98 x…

A:

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.