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Anna71 [15]
2 years ago
15

Which of the following statements about main idea is true?.

SAT
1 answer:
Rina8888 [55]2 years ago
3 0

Answer:

The main idea is a complete sentence; it includes the topic and what the author wants to say about it. If the author states the main idea in his paragraph it is called a “topic sentence.”

Explanation:

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A 100-n weight is hung at the middle of a 4-m long horizontal clothesline. If the middle of the clothesline sags by 1 m, what is
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The tension on each segment of the clothesline is :  110 N

<u>Given data : </u>

mass of object = 100 n  = 10 kg

Horizontal distance of clothesline = 4 m

middle of clothesline sag s by : 1m

<h3 /><h3>Determine the tension on each segment of clothesline</h3>

<u>First step</u> : calculate the horizontal angle made by the sagging

β = arctan ( 1 m / 2m )  ----- ( 1 )

  = arctan ( 0.5 )

  ≈ 26.57°

Note : Tension in th y axis ( Ty ) = Tsinβ

Therefore :

Tension on each segment can be calculated using the formula below

2Tsinβ - mg = 0

solve for T

T = mg / 2sinβ

  = ( 10 * 9.8 ) / 2 * sin 26.57°

  = 98 / 0.89

  = 110 N

Hence we can conclude that the tension on each segment of the clothesline is : 110 N

Learn more about Tension calculations : brainly.com/question/24994188

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2 years ago
Squealer explains to the other animals that napoleon was never opposed to the windmill. How does this conflict propel the plot f
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Answer : the other animals realizes that squealer and napoleon

Explanation:

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2 years ago
A study conducted at a certain college shows that 55% of the schools graduates find a job in their chosen field within a year af
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Answer:

porbability of 75

Explanation:

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4 0
3 years ago
baker, schultz, and halstead argue that the united states could exploit significant strategic and economic gains if it invests i
ikadub [295]

The given statement is False. Baker, Schultz, and Halstead argue that the United States can reap significant strategic and economic benefits by investing in cleaner energy technologies and supporting international efforts to reduce carbon emissions.

Carbon emissions are the primary cause of global climate change. It is widely acknowledged that in order to avoid the worst effects of climate change, the world must urgently reduce emissions. However, how this responsibility is distributed among regions, countries, and individuals has long been a source of contention in international discussions.

This debate stems from the various ways emissions are compared, including annual emissions by country, emissions per person, historical contributions, and whether or not they account for traded goods and services. These metrics can tell a variety of stories.

To know more about carbon emissions here-  

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1 year ago
A football has a mass of .43 kg and it accelerates
Jet001 [13]

Answer:

10 m/s²

Explanation:

Near Earth's surface, gravitational acceleration is approximately 9.81 m/s2, which means that, ignoring the effects of air resistance, the speed of an object falling freely will increase by about 9.81 metres per second every second.

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