Which is a binary star?

Answers

Answer 1
Answer:

Answer:

Explanation:

a system of two stars that are gravitationally bound to and in orbit around each other

Answer 2
Answer:

Binary stars are two stars orbiting a common centre of mass. The brighter star is officially classified as the primary star, while the dimmer of the two is the secondary (classified as A and B respectively). In cases where the stars are of equal brightness, the designation given by the discoverer is respected.

Binary pairs can be classified based on their orbit. Wide binaries are stars that have orbits that keep them spread apart from one another. These stars evolve separately, with very little impact from their companions. They may have once contained a third star, which booted the distant companion outward while eventually having been ejected themselves. Close binaries, on the other hand, evolve nearby, able to transfer their mass from one to the other. The primaries of some close binaries consume the material from their companion, sometimes exerting a gravitational force strong enough to pull the smaller star in completely. The pairs can also be classified based on how they are observed, a system that has overlapping categories. Visual binaries are two stars with a wide enough separation that both can be viewed through a telescope or even with a pair of binoculars. Five to 10 percent of visible stars are visual binaries. Spectroscopic binaries appear close even when viewed through a telescope. Scientists must measure the wavelengths of the light the stars emit and determine their binary nature based on features of those measurements.

Eclipsing binaries are two stars whose orbits are at an angle so that, from Earth, one passes in front of the other, causing an eclipse. This feature is based on the line of sight rather than any particular feature of the pair.

Astrometric binaries are stars that seem to dance around an empty space; that is, their companions cannot be identified but only inferred. Such a companion may be too dim to be seen, or could be hidden in the glare from the primary star.

Stars referred to as double stars are two that appear close together in the sky visually, but are not necessarily anywhere near one another in space.


Related Questions

Positive self-talk can be helpful because __________.a. it assists in improving self-esteem b. it causes others to praise you c. it creates new external expectations d. it reduces the amount of criticism you receive
Reagan aimed to reduce government regulations because theya. stifled competition. b. created unsafe working conditions. c. led to lower income taxes. d. led to lower property taxes.
What were Texas and Vermont before they became part of the United States?
Laws that automatically register residents to vote in elections a. have been enacted by only five states. b. have been enacted by exactly half of states. c. have been enacted by all 50 states. d. are explicitly prohibited by the Constitution.
Machines, tools, materials, and processes used to produce goods and services are defined as __________.a. industrializationb. technologyc. innovationsd. revolutions

Minority schoolchildren perform better on verbal intelligence tests when they are told the testhas nothing to do with school compared to when they are told the test is school-related. Which of the following can be concluded?-1. Intelligence tests are not culturally biased2. Ethnic and racial differences in intelligence mark different levels of preparedness3. Intelligence tests are influenced by stereotypes and expectation4. None of the above

Answers

Answer:

3.Intelligence tests are influenced by stereotypes and expectation

Explanation:

Stereotype is false belief about an individual or group based on biased information about that person or group. From the above, children perform better if they're told their tests aren't school related because their expectation or stereotype as it regards school could get in the way and majorly influence how they perceive and therefore treat their task(test).

Which of the four basic market structures gives the business the GREATEST control over price and the LEAST? a. Monopoly b. Oligopoly c. Monopolistic competition d. Perfect competition

Answers

Among the four basic market structures, a monopoly gives the business the GREATEST control over price because it is the sole provider of a product or service in the market. In a monopoly, there are no direct competitors, allowing the company to set prices without the constraint of market competition.

On the other hand, perfect competition gives the business the LEAST control over price. In perfect competition, there are many small firms competing in the market, and they are price takers, meaning they have no control over the price and must accept the market price as given.

So, the correct answers are:

GREATEST control over price: a. Monopoly
LEAST control over price: d. Perfect competition

All consumers have received a tax cut. What happens to the equilibrium price of automobiles?a. increases
c. remains the same
b. decreases
d. none of the above

Answers

The answer would be : a. Increases

If the consumers received a Tax Cut, they will have more Disposable Income that they can used to buy Products.

Automobiles' companies will see this as an opportunity to increase the price of their product to generate more revenue for the company

All consumers have received a tax cut. What happens to the equilibrium price of automobiles?

The equilibrium price of automobiles A.increases. The equilibrium price of automobiles increases because consumers now have more disposable income than they had before receiving the tax cut. A tax cut is a reduction of taxes that are placed on those that live in the society they are over. A tax cut can bring a lot of growth to an economy as those who live within have more money to spend.

Mexico City is an example of how humans alter their environment because it was

Answers

Mexico City was originally located on islands on the lake Texcoco, which was later dried to account for the growth of population. Humans altered the environment because they dried Texcoco - and it's almost non-existent today

Answer:

B.

built on drained and filled lake beds

Explanation: got it correct on my quiz, so here it is.

Dustin just posted an entry in his blog talking about how happy he is with his new GoPro camera. In the blog he also posted videos that he took with the camera. As a customer of the product, which facet of the 4E framework for social media is Dustin most exhibiting?

Answers

Answer:

Educating

Explanation:

The 4 E's for Social Media Building focus on not interrupting the audience to sell something to them, it concentrates on adding value to their day.

Regarding the 4 E's of content on social media: educating, empowering, entertaining and engaging can help you succeed.

Educating - focuses on providing your customers with useful information to help them understand what you're selling, why they need you and what problem you're fixing for them.

Final answer:

In the 4E framework for social media, Dustin's blog post about his new GoPro camera, complete with videos shot with it, aligns primarily with the 'Experience' component. He shares a personal experience with the product, rather than educating about its features, triggering interest towards it, or fostering a community around it.

Explanation:

In the context of the 4E framework for social media, Dustin is primarily demonstrating an Experience. Such experience is shown through his utilization of his GoPro camera, as well as his expression of satisfaction with the product. The 4E framework encompasses four key components of a consumer's interaction with a product or brand via social media: Experience, Educate, Excite, and Engage. Dustin's blog post about his new GoPro, complete with videos shot with it, provides a personal experience with the product to his readers. He is not only talking about the features of the GoPro (which would be Educate) or inciting interest towards it (which would be Excite), but he is also not merely prompting interactiveness or initiating a community around it (which would be engaging). He is largely relating his own experience with the product.

Learn more about 4E framework here:

brainly.com/question/32478660

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You are off duty at a popular local establishment in a relatively prosperous and secure neighborhood, but notice several things that bother you. First, this is the only building on the block with bars on the windows. Second, you notice that female staff are being transported to and from work by managers who appear to be monitoring them closely. Third, these women rarely converse with customers and seem nervous, looking around for their managers whenever interacting with customers. You get the strong impression they are being employed under coercive circumstances. What should you do?

Answers

I think the best thing to do is to report it to the police as suspicious activity. As a citizen you have the obligation to colaborate in the mainteneance of a healthy society in which everyone's rights are respected. It all indicates that these women rights have been denied. Police departments suggest to report any suspicious activity even if you are not sure, they will make an investigation and find out what is really going on. If nothing is out of the law then nothing bad will happen, if something is illegal there will be legal consequences.  

Answer:

Personally I would ask to speak with a manager and see what they would do, if they pointed me in the right direction I would talk with him and see if anything seemed odd. If I still got that feeling I would talk to the police about it and let them do the investigating.