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aev [14]
3 years ago
15

Careful measurements reveal that a star maintains a steady apparent brightness at most times, except that at precise intervals o

f 73 hours the star becomes dimmer for about 2 hours. The most likely explanation is that:________.1. The star is cepheid variable.2. The star is a member of binary eclipsing star system.3. The star is peridically ejecting gas into space every 73 hours.4. The star is a white dwarf.
Social Studies
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

2. The star is a member of binary eclipsing star system.

Explanation:

The question above shows an example of an eclipsing binary star. This type of star is very variable because the intensity of its brightness varies in the deccore of a few hours. This is because these stars are so close to an observer's field of view on the Earth's surface that they are easily eclipsed, and it is exactly these eclipses that cause the brightness of these stars to vary, which undergo a constant period of approximately 73 hours. intense shine, followed by constant drops in the intensity of that shine (lasts about 2 hours).

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Which of the following is the first step in the process of management by objectives? a. Reviewing progress regularly b. Collecti
MAVERICK [17]

Answer:

The correct answer is D: Discuss possible goals

Explanation:

In 1954, Peter Drucker introduced the concept of management by objectives. His aim was to use goals to improve performance of people instead of controlling them. However, middle managers often use MBO for the development and execution of tactical plans. The first step in this process is to discuss possible goals. This is followed by collectively selecting goals consistent with the overall goals of the organization. This is followed by developing tactical plans and lastly reviewing progress.

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3 years ago
Some systems, for various reasons, allow only one side or the other to transmit at one time. This type of connection is an examp
xz_007 [3.2K]

Answer:

Half duplex

Explanation:

The half duplex is a device which allows the communication from only one side and the other person can only hear at a time. The example is radio. The person speaks from the one side can only speak and on the other the person can only hear. In a full duplex both parties convey their messages to each other. The example includes cellphones, telephones, wireless phones, etc.

6 0
3 years ago
Example of the neolithic human use of the familiar materialsin a new way is
Dovator [93]

<u>Using stone to build tools.</u>

Stone was a familiar material that was used in numerous ways.

5 0
3 years ago
What’s the southernmost province of the country that occupies approximately one sixth of the Iberian Peninsula?
HACTEHA [7]
There are only two countries on the Iberian Peninsula: Spain, that occupies the bigger part of it, and Portugal, with a smaller part (and a tiny part belongs to the UK, Gibraltar).

Therefore we know that the country in question is Portugal. Portugal's southernmost province is Algarve - and its capital is Faro
8 0
2 years ago
Read 2 more answers
Zoe, a young girl, lives in an apartment with her boyfriend, Luke. She does not like jazz music. However, Luke loves jazz and pl
Veseljchak [2.6K]

Answer:

the mere-exposure effect                  

Explanation:

Mere exposure effect: In psychology, the term "mere exposure effect" was first proposed by a social psychologist named Robert Zajonc during 1968 and is also referred to as the "familiarity principle". The mere exposure effect is determined as a phenomenon in which if an individual gets exposed towards a specific thing, then he or she is more likely to develop a preference for that particular thing over time.

In the question above, the given statement signifies that Zoe liking jazz is most likely due to the mere-exposure effect.

4 0
3 years ago
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