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grandymaker [24]
3 years ago
6

Define the term light

Social Studies
2 answers:
ioda3 years ago
3 0
Electromagnetic radiation with certain portion of electromagnetic spectrum
vodomira [7]3 years ago
3 0
The form of energy that makes it possible to see things : the brightness produced by the sun, by fire, a lamp, etc.
: a source of light (such as an electric lamp) something that make vision possible
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Which of the following is true of Hildegard of Bingen?
Stels [109]
She wrote polyphonic melodies her mystical compositionsbeing a composer, nun, and healer Medieval prophet, healer and composer writer, composer, artist, and <span>intellectual.</span>
4 0
3 years ago
Placing a greater value on a research project that included 10,000 participants, as opposed to one investigating the same hypoth
Vika [28.1K]

Answer: sample size

Explanation: sample size simply means the number of observations or items chosen as a representation of a population. Sample size is an important terminology used in statistical analysis as most statistical or experimental research cannot be performed using all the available observations in the entire population either due to cost or total impossibility. The larger the sample size, the better the generalization made about the entire population.

Therefore, a sample size consisting of 10,000 participants or observations will generalize more and hence, attract greater value and interest than the same analysis with a sample size of 24 participants.

4 0
3 years ago
What is the term that refers to an order requiring a person to appear in court
Ugo [173]

The correct answer is a subpoena.

A Subpoena is a court order to appear in Court or in front of a legislative body with an investigative function.

6 0
2 years ago
Bill and Tom were both adopted as infants. Tom's biological father is currently incarcerated for a violent offense. This is not
Olenka [21]

Answer:

1. Tom is more likely to commit crime than Bill

Explanation:

From studies, it has been shown that there is a genetic susceptibility to engage in criminal activities, studies in the field of criminology and psychology suggest that genes play a role in an individuals tendency to commit a crime.  

Based on these scientific findings, since Tom is from a family with history of crime and violent behaviour, there is a higher likelihood that he will engage in crime compared to Jill.

7 0
3 years ago
How fast must an object move before its length appears to be contracted to one-half its proper length?
notsponge [240]

The object must move with the speed of \frac{\sqrt{3} }2} times to approximately seeing that it is contracted to exactly half of its actual length.

<h3>How is this calculated?</h3>

The length contraction experimented by the object as it approaches lightspeed, in meters per second, is described by Lorentz contraction formula:

\frac{L}{L'} = \sqrt{(1) - (\frac{v}{c})^{2}

Here, v is the current speed m/s

c is the speed of light in m/s

L' is the length of the object at rest in m

L is the length of the object at the current speed in m

Now we know that

\frac{L}{L'}= \frac{1}{2} and \frac{v}{c} = r then,

\frac{1}{2} = \sqrt{1 - r^{2} }\\\frac{1}{4} = 1 - r^{2}\\r^{2} = \frac{3}{4}

Hence, r = \frac{\sqrt{3} }{2}

Therefore, the answer is the object must travel at a speed of \frac{\sqrt{3} }{2} times the lightspeed to be contracted to one-half its proper length.

To know more about the Lorentz contraction formula, visit:

brainly.com/question/17407131

#SPJ4

7 0
2 years ago
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