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Alenkinab [10]
3 years ago
5

When conducting scientific research, any information that is found must be analyzed to determine its validity. John believes tha

t UFOs and extraterrestrial life exist. The excerpts below are an eyewitness account of UFO activity in South Carolina. Which of these observations is valid?
a. "I can tell from a firsthand experience that yes, UFOs do exist."
b. "One thing for sure is that they were UFOs and they had to be piloted by some type of intelligent life."
c. Both of these observations are valid.
d. Neither of these observations is valid.
Physics
2 answers:
SashulF [63]3 years ago
5 0

Answer:

b. "One thing for sure is that they were UFOs and they had to be piloted by some type of intelligent life."

Explanation:

Well...generally the above observation may seem wrong but it isn't. That's because according to scientific point of view, if he saw a real UFO flying out in the air then it is logically possible that some being of an advance civilization must be piloting that craft. If the observation is correct then it can't just be a coincidence at all.

diamong [38]3 years ago
4 0

Answer:

the answer is D

Explanation:

NEITHER OF THESE OBSERVATIONS IS VAILD

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constant = 2 and 4

variable = y

Explanation:

A constant is usually a symbol with a known value. In the expression, the constants are 2 and 4.

Their values are accurately known.

A variable is place holder and the value is not known. Variables are not static. They can take different numerical values as defined by an equation:

                 2cm +4y​

  the cm is the a unit

      2 and 4 are constants

          y is a variable that can assume any value

Learn more:

Experiment brainly.com/question/1621519

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Tim's car breaks down just down the street from his house. he and his friends decide to try to push it to his house. using newto
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The question is on the picture.
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If an element's atomic mass and atomic number are known, what else can be determined? Give an example to demonstrate your unders
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Answer:

Explanation:

If an elements atomic mass and number are known you can also determine the number of protons and neutrons it has. You can also determine where it is on the periodic table. For example, if a element had a atomic mass of 10 then it would be higher up on the table then one with a mass of 20. Btw I do apex too.

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A record turntable rotates through 5.0 rad in 2.8 s as it is accelerated uniformly from rest. What is the angular velocity at th
Usimov [2.4K]

Answer:

\omega_f = 3.584\ rad/s

Explanation:

given,

turntable rotate to, θ = 5 rad

time, t = 2.8 s

initial angular speed  = 0 rad/s

final angular speed = ?

now, using equation of rotational motion

\theta = \omega_i t + \dfrac{1}{2}\alpha t^2

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\omega_f = 3.584\ rad/s

hence, the angular velocity at the end is equal to 3.584 rad/s

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