A large star of 1018 kg and a small star are 105 meters apart and attract with 6.7 N. What is the mass of the small star (in kg)?

Q: What must be the radius of a star of mass 2 x 10^30 kg so that the escape speed from this star is…

A: Answer:-  Given  Mass of star(M) = 2 × 1030 kg  Escape speed (V) = 2 × 108 m/s  Gravitational…

Q: How much would you age in traveling a distance of 4.50 light years from earth if you were able to…

A:

Q: What is the kinetic energy of a proton moving with a speed of 0.950c. mp = 1.67 x 10-27 Kg Group…

A:

Q: What is the distance in light years from Earth to a star that makes a parallax angle of 2.0 arc…

A: Given  parallex(p)=2 arc second

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 is the conceptual difference between g and G?  Besides their numerical values,

A: g is the acceleration due to gravity which is expressed in m/s2. G is the universal gravitational…

Q: Massive stars ending their lives in supernova explosions produce the nuclei of all the atoms in the…

A: The formula for the relativistic momentum of a particle is:

Q: An astronaut takes a trip to Sirius, which is located a distance of 8 light-years from the Earth.…

A: The formula for the length contraction is:

Q: A supernova explosion of a 2.00 x 1031 kg  star produces 1.00 x 1044 J of energy. What is the ratio…

A: The expression for find change in mass is ∆m=Ec2 Substitute values in the above equation…

Q: As measured by the crew, a spaceship takes 5.6 years to fly from Earth to a distant star. If the…

A:

Q: How much would you age in traveling a distance of 4.84 light years from earth if you were able to…

A: Givend=4.84 light yearv=0.952 c

Q: What would be the total energy of the spaceship (m = 10^4 kg) when %3D moving at v = 0.75c as…

A:

Q: Which of these forces is NOT unified with the others in a Grand Unified Theory?   a. gravitational…

A: Grand unified theory of Forces includes three of four fundamental Forces, which are: Strong Force…

Q: A rocket travels away from the earth at a velocity of 2 x 108 m/s. A missile is fired from the…

A: Given, Velocity of rocket vR = 2 x 108 m/s Velocity of missile vm = 1.5 x 108 m/s   We know the…

Q: 16.) An astronaut travels at 0.85c to a nearby star for 2.5 years. What is the elapsed time as…

A:

Q: When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end…

A: Introduction :- Here it is given that a star is emitting light and this light is being received by…

Q: Since neutron stars consist totally of neutrons, they are extremely massive and have a density that…

A:

Q: Assume that the laws of Newtonian mechanics and Newtonian gravity still hold for a neutron star,…

A: Assume that the laws of Newtonian mechanics and Newtonian gravity still hold for a neutron star,…

Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…

A: Given, Length of cylinder = 100 m Its mass with occupants is 1050 kg  The distance between the nose…

Q: A supernova explosion of a 2.00×1031 kg star produces 1.00×1044 kg of energy. (a) How many kilograms…

A:

Q: The spaceship which is measured to be 50 m long by the captain. When the spaceship past a space dock…

A:

Q: What would be the diameter (of the event horizon) of a black hole with the same mass as Jupiter?

A: Blackhole is a hypothetical concept that contains everything in the universe within a very small…

Q: You are an astronaut traveling at 75% the speed of light. It would require you 25 years as measured…

A:

Q: The length of a moving spaceship is 29.8 m according to an astronaut on the spaceship. If the…

A:

Q: Suppose we represent an ordinary star as a uniform solid rigid sphere. The star’s initial radius is…

A: Given: R1=644000 kmR2=18.3 kmT1=30 daysT2=?

Q: Two identical clocks are made. One is placed on the surface of a massive planet, and the other is…

A: According to gravitational time dilation, gravity is proportional to time. Hence, the closer the…

Q: 51. ao Two stars in a binary system orbit around their center of mass. The centers of the two stars…

A: Given: The distance between the centers of two star is 7.17×1011 m. The mass of the larger star is…

Q: Since neutron stars consist totally of neutrons, they are extremely massive and have a density that…

A: mass of star, m=2.5*1028Kg radius of star, r= 1.9*103Kg

Q: Imagine an astronaut on a trip to Sirius, which lies 8 light - years from Earth. Upon arrival at…

A: Let v be the velocity of the ship.Write the expression to determine the time interval of trip…

Q: Spacecraft 1 passes spacecraft 2 at 0.855c relative to spacecraft 2.  An astronaut on spacecraft 1…

A: Length Contraction is a phenomenon of shortening of measured length of a moving object than its rest…

Q: The escape speed from a black hole would be greater than the speed of light. If the impact time of…

A: to choose : True and false for given statements

Q: ____ occurs when light travels out of a gravitational field, loses energy, and its wavelength grows…

A: A gravitational redshift occurs when light travels out of a gravitational field, loses energy, and…

Q: lve the following problem using Lorentz transformations: Two jets of material are ejected in…

A: Given:-  Two jets of material are ejected in opposite directions from the center of a radio galaxy.…

Q: The wavelength of a particular ultraviolet radiation from hydrogen atoms is 1.216 × 10-7 m.…

A: Given data: Wavelength of a particular ultraviolet radiation, λ0=1.216×10-7m Speed of the galaxy,…

Q: A supernova explosion of a 2.00×1031 kg star produces 1.00×1044 J of energy. (a) How many kilograms…

A: a)

Q: Would would happen to Spacetime at the surface of the Sun if you kept the volume the same but…

A: Answer:- The spacetime curvature would increase with increasing density.

Q: Question 8 The star Betelgeuse is about 520 light-years away, If the speed of light were twice its…

A:

Q: makes a round trip at 0.6c to a star 12 light-years away, while twin B stays on the earth. Each twin…

A: Answer

Q: Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons…

A:

Q: While on board a starship, you intercept signals from four shuttle craft that are moving either…

A:

Q: A 20 year old Physics student volunteers to go on a long flight in a spacecraft that travels close…

A:

Q: A particle maintains a circular orbit around a black hole of mass 10 Solar masses at a distance…

A: Mass of black hole (M) = 10×2×1030 kg = 2×1031 kg distance (R) = 2×Schwarzchild radii = 2×G×Mc2=…