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vladimir2022 [97]
3 years ago
5

Can three or more vectors be added together so tjat their sum is zero? If yes, show by means of tail-to-heal arrangement of the

vectors how this could occur.​
Social Studies
1 answer:
Ymorist [56]3 years ago
8 0

Answer:

yes it is possible

Explanation:

if all the vectors form a closed polygon such that head of each vector touches the tail of next one then their vector sum is zero.

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How did the discovery of gold in Georgia change the relationship between the Cherokee Nation and the white settlers?
Marat540 [252]

Answer:

read explanation

Explanation:

When gold was discovered on Cherokee land in Georgia, whites poured onto Cherokee lands by the thousands, ignoring treaties, burning villages, and flaunting the U.S. Constitution and the Non-Intercourse laws passed by Congress

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For an experiment, Sarah must write a description of herself every hour. After the first hour, Sarah is at school and she writes
tekilochka [14]

Answer:

self-concept; working self-concepts

Explanation:

Self-concept can be described or explained as an individual perception of one self or behavior. This can be explained further as the mental picture that one has about himself/herself.

Some examples of self-concept are , when an individual sees himself/herself as an intelligent person, and when a man/woman sees himself/herself as a good spouse.

In this case, Sarah is showing an act which is termed as self-concept because she was showing the mental picture of herself, but in a working manner.

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3 years ago
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Can people ever be separated but equal?
yawa3891 [41]
No, there can be no equality if there is separation. Take for example segregation, where African Americans were separated from whites in public facilities like schools and restaurants. The two groups of people did not receive equal treatment, and therefore there was no true equality.
7 0
3 years ago
In order to obtain subjects for a study, I ask for volunteers at a senior citizens center. Which threat to validity is most like
antoniya [11.8K]

The threat to validity that is likely to occur in the scenario above is Selection Bias.

<h3>What is Selection Bias?</h3>

This occurs when a researcher has control and intentionally chooses those who are going to be researched, observed, or studied. To eliminate this bias, the scientist must ensure that the sample population is selected very randomly.

Other threats to validity are:

  • History
  • Maturation
  • Attrition
  • Social Interaction
  • Instrumentation
  • Testing
  • Regression to the mean, etc.

Please see the link below for more about Threat to Validity:

brainly.com/question/4168290

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Americans watched their televisions in amazement and heard Neil Armstrong’s words as he took his historic "giant leap for mankin
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Answer:

D. Americans

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The antecedent is a noun that replaces the subject, the thing doing the action.

In the sentence instead of saying americans again it says their.

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