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Naddika [18.5K]
3 years ago
9

9. Which of the following statements is true about scientific theories?

Physics
2 answers:
AleksAgata [21]3 years ago
6 0
I think the correct answer from the choices listed above is option D. Scientific theories summarize patterns found in nature. Although, the statement scientific theories are never proven is somewhat true. They are either disproved or they are never disproved. Hope this answers the question.
pochemuha3 years ago
3 0

Correct answer choice is :


B) Scientific theories are never proven.


Explanation:


A scientific theory is a well-substantiated description of some features of the natural world, based on a body of evidence that has been frequently authenticated through investigation and experimentation. Such fact-supported hypotheses are not conclusions but authentic statements of the actual world. A scientific theory may be changed and eventually discarded if it cannot be done to fit the new conclusions in such conditions, a more precise theory is then needed.

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<h3>Fossil succession of rocks</h3>

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3 0
2 years ago
Which is not an example of a scalar?<br><br> a. 2t/s<br> b. 3kg<br> c. 6.2m north<br> d. -100c
xxMikexx [17]
C because I’m a teacher
4 0
3 years ago
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nikdorinn [45]
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3 0
3 years ago
Read 2 more answers
A small metal object is tied to the end of a string and whirled round a circular path of radius 30cm. The object makes 20 oscill
LUCKY_DIMON [66]

Answer:

(i) The angular speed of the small metal object is 25.133 rad/s

(ii) The linear speed of the small metal object is 7.54 m/s.

Explanation:

Given;

radius of the circular path, r = 30 cm = 0.3 m

number of revolutions, n = 20

time of motion, t = 5 s

(i) The angular speed of the small metal object is calculated as;

\omega = \frac{20 \ rev}{5 \ s} \times \frac{2 \pi \ rad}{1 \ rev} = \frac{40\pi \ rad}{5 \ s} = 8\pi \ rad/s = 25.133 \ rad/s

(ii) The linear speed of the small metal object is calculated as;

v = \omega r\\\\v = 25.133 \ rad/s \ \times \ 0.3 \ m\\\\v = 7.54 \ m/s

6 0
3 years ago
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