Question 3 (1 point) What compelling evidence links pulsars to neutron stars? Question 3 options: Pulsars...
Homework Answers
The correct option is c) both neutron stars and pulsars can be found in globular star clusters.
Moreover neutrons stars ultimately becomes pulsars and usually observated in nearby radio or other electromagnetic waves.
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Question 3 (1 point)
What compelling evidence links pulsars to neutron stars?
Question 3 options:
Pulsars...
Question 3 (1 point) What compelling evidence links pulsars to neutron stars? Question 3 options: n/a...
Question 3 (1 point) What compelling evidence links pulsars to neutron stars? Question 3 options: n/a Pulsars are known to evolve into neutron stars. Both neutron stars and pulsars have been observed near the Sun. n/a
1) Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions....
1) Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions. Many rotate very rapidly. Suppose the mass of a certain spherical neutron star is twice the mass of the Sun and its radius is 14.0 km. Determine the greatest possible angular speed the neutron star can have so that the matter at its surface on the equator is just held in orbit by the gravitational force. (The mass of the Sun is 1.99 1030...
choose correct answer. no explanation needed QUESTION 36 What does the apparent magnitude of a star...
choose correct answer. no explanation needed
QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...
Question 2 (1 point) The Weak Interaction is weak because Question 2 options: To interact weakly ...
Question 2 (1 point) The Weak Interaction is weak because Question 2 options: To interact weakly requires the creation of a heavy gauge boson Not many particles participate in it Particles that interact weakly do so at a great distance The weak interaction involves neutrinos which are rare Question 3 (1 point) All other things being equal, which of the following conditions would result in more nuclear reactions taking place each second inside the Sun than is currently the case...
What is the reason for two stars to have the same brightness but one being 100...
What is the reason for two stars to have the same brightness but one being 100 times more luminous than the other? One of them is 100 times more distant One of them is 10 times more distant One of them is 1000 times more distant One of them is 4π times more distant The Brightness scale like the inverse of the square of the distance (1/R2) T F What is parallax? The distance of a star A method to...
Question 8 (1 point) The main sequence turn-off of a cluster of stars is a good...
Question 8 (1 point) The main sequence turn-off of a cluster of stars is a good indicator of which of the following properties of the cluster? Question 8 options: age number of stars in the cluster chemical composition distance Saved Which of the following is key difference between the pressure in a normal gas and in a degenerate gas? Question 9 options: in a degenerate gas, pressure doesn't depend on temperature in a degenerate gas, pressure doesn't depend on density...
3. A simple model of a Neutron star is an ideal gas of neutrons (each with spin 1/2 in units of h...
3. A simple model of a Neutron star is an ideal gas of neutrons (each with spin 1/2 in units of h). Aside from the kinetic energy of the neutrons, one must consider the gravitational energy, which for a homogeneous star of mass M and radius R, is 3GM2 5R where G 6.67 x 10-11m3kg-'s-2 is the universal gravitational constant (i) We suppose in this problem that the Fermi temperature is large enough for T0 What general condition determines the...
The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin...
The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin rate- was fortuitous. A group of astrophysicists from Cambridge University lead by Anthony Hewish was looking for quasars (these are extremely bright, compact and remote objects that emit up to a thousand times as much light as our entire galaxy). For that purpose the research group designed a radio-telescope that was built on the flat fields surrounding Cambridge in central England. This telescope did...
Critical mass Question 1 options: is the minimum mass required to sustain a chain reaction. is...
Critical mass Question 1 options: is the minimum mass required to sustain a chain reaction. is dependent upon both the amount of material and the surface area of the material. can be reduced by surrounding the material with a neutron reflector. all of the above. None of the above. Question 2 (1 point) For a fission reaction to spontaneously take place Question 2 options: the mass of the daughter nuclei must be smaller than the mass of the original nucleus....
Question 1 (1 point) Which of the following was Darwin unaware of: Question 1 options: genetic...
Question 1 (1 point) Which of the following was Darwin unaware of: Question 1 options: genetic material within cells that provides evidence of species relationships branching relationships between groups of organisms biodiversity being explained without relying on supernatural creation change in populations over time in response to the environment Question 2 (1 point) A major advancement in our understanding about life on this planet came from recognizing that: Question 2 options: branching phylogenies are only applicable to prokaryotic life molecular...
choose correct answer. no explanation needed
QUESTION 36 What does the apparent magnitude of a star tell us about that star? its mass how bright it appears from Earth its radius how much energy it is emitting QUESTION 37 What is the reason sunspots appear darker than surrounding regions on the Sun's surface? They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are too cold to emit any visible light. They...
3. A simple model of a Neutron star is an ideal gas of neutrons (each with spin 1/2 in units of h). Aside from the kinetic energy of the neutrons, one must consider the gravitational energy, which for a homogeneous star of mass M and radius R, is 3GM2 5R where G 6.67 x 10-11m3kg-'s-2 is the universal gravitational constant (i) We suppose in this problem that the Fermi temperature is large enough for T0 What general condition determines the...
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