why is it reasonable to suspect that travel between stars is nearly impossible?
Q: Some thing that is 50 km away has an angular size of five arc seconds how tall is the object write…
A: Angular size, θ = 5 second of arc Distance, r = 50 km = 50×103 m Consider height is h. First…
Q: Given the following equation for orbital velocity, pe sin 0f + (1 + e cos 0) Ô demonstrate…
A: Given that:v→=μehsinθr^+μh(1+ecosθ)θ^
Q: Calculate the number of miles in a light-year, using 1.86 105 mi/s as the speed of light. (Hint:…
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Q: The expanding bubble of hot gas shown in the figure, which has been inflated by the light from a…
A:
Q: The New Horizons probe is currently traveling at 14.1 km/s. How long would it take to reach Proxima…
A: speed of probe (v) = 14.1 kms= 14100 msdistance (d) = 4 light years
Q: Suppose we find an Earth-like planet around one of our nearest stellar neighbors, Alpha Centauri…
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Q: The Sloan Digital Sky Survey O searches to see whether extra-terrestrial civilizations are sending…
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Q: How fast do gravity waves move? 3,000 km/s 30,000 km/s 30,000,000 m/s at…
A: Gravitational waves are first detected by LIGO (Laser Interferometer Gravitational-Wave Observatory)…
Q: What was Heliocentrism? Why did it matter?
A: Galileo discovered evidence to support Copernicus' heliocentric theory when he observed four moons…
Q: The number of stars in the Milky Way Galaxy is approximately
A: Number of stars in Milky way galaxy
Q: Why is being able to determine a distance form just an angular measurement important? Also why is…
A: As we know, The angular measurements are the divided circle by the scale of a vernier protractor. It…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: How the universe expands?
A: The expansion of the universe is just the increase in distance between any two selected…
Q: suppose there are three stars in space, each moving at 100 km/s. Star A is moving across9…
A: In this case, all the stars are moving away from the Earth. Therefore, we will observe the redshift.…
Q: an absolute magnitude of -3 is more luminous than an absolute magnitude of-8.
A: Given, Absolute magnitude of objects
Q: Tell me what is dark matter?
A: It is required to discuss about the dark matter.
Q: Water flows at a rate of 2.4 ft3/s in an old, rusty 7.8-in.-diameter pipe that has a relative…
A: GivenWater flows at a rate of 2.4 ft³/s in an old, rusty 7.8-in.-diameter pipe that has a relative…
Q: What do you think of the statement: The universe has no center and no edge (or boundary)?
A: The description of the universe that it has no centre and no edge actually tells a lot about the…
Q: could this be rewritten by any chance? It just comes up as a bunch of letters and integral symbols.…
A: Determine, The mass of the object and the center of the mass.
Q: Why do bigger stars burn out quicker(have a shorter lifespan
A:
Q: What do you mean by synchrotron?
A: A synchrotron is a large machine. It is used in electric fields to accelerates the electrons at…
Q: Is the universe open or closed?
A: the universe as "closed," "open," or "flat," meant that the density of the universe was either so…
Q: Which celestial object contains more mass? O Star O Galaxy O Nebula O Comet
A: Now, using the Kepler's planetary laws, we can write: Mass of star = Around 0.08-150 solar masses…
Q: Is Hubble's law applicable in another planet or galaxy?
A: In this question we have to answer whether the Hubble's Law is applicable in another planet or…
Q: From Earth, the Sun appears brighter than any other star because the Sun is the
A: From Earth , the Sun appears brighter than any other star because the Sun is the ______
Q: Which of these astronomical objects is the largest? O a star O a spiral galaxy O a planet O a solar…
A: The size of an astronomical object is as below in increasing order. Planet< Star< Solar…
Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…
A: Here we arrange these things on the bases of their size in increasing order.
Q: Your astronaut twin brother is exploring a planet of a star far out in space. Ignoring the time…
A: Brother's age 2 years for 1 year of my age⇒ t∘=t , t'=2t
Q: Why do theorists feel the universe is flat?
A: Why do theorists feel the universe is flat
Q: 5. (ROTATIONAL ENERGY) In class we saw that the linear acceleration of two wheels rolling down a…
A: We are given 2 wheels rolling up the incline. They both have same initial linear velocity. We have…
Q: Why the gravitational force is so important on the cosmic scale?
A:
Q: Why was the idea that the universe is eternal and unchanging abandoned?
A: The universe is eternal and unchanging abandoned because the universe was found to be expanding in…
Q: Why do we think that nothing, other than light, can travel faster than the speed of light?
A: According to the Einstein’s theory of relativity nothing can travel faster than light.
Q: Define synchrotron radiation?
A: Synchrotron radiation
Q: Why Is It Not Easy To Quantize Gravity?
A: It is not easy to quantize gravity because constants involved in gravitational interaction such as…
Q: Compare the values of the number of grains of sand in all earth’s beaches with the number of stars…
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Q: Calculate the length of one light-year (ca), in metres.
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why is it reasonable to suspect that travel between stars is nearly impossible?
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