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4vir4ik [10]
3 years ago
11

The theory of plate tectonics describes how the Earth’s lithosphere is broken into plates and these plates move over the molten

magma below. Why is this considered a theory and not a law?
A. a theory is can not be proven and is based on opinion, a law is based on facts

B.A theory is developed by a single person or small group a law is developed by a large group of scientists

C. A theory can be modified as new evidence is uncovered, a law describes a relationship under certain conditions

D. A theory is developed by observing something under certain conditions and a law can be modified as new evidence is uncovered
Physics
1 answer:
Mumz [18]3 years ago
5 0

Answer:

C

Explanation:

A theory can be changed when new evidence is found. A law doesn't change because it is universally a fact. It doesn't need new evidence to support it.

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When a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm.
Readme [11.4K]
F=K*X,
F=M*a 

M*a=K*X

2.5*9.81=K*0.0276

24.525=K*0.0276

24.525/0.0276=K

K= 888.6 N/m ---- force constant 

assuming 2.5 refers to the new extension, just divide F/ 0.025
to get

981N/m 


8 0
3 years ago
Explain how waves, energy, and matter are related
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Answer:

Mechanical waves need matter to transfer energy while electromagnetic waves do not. ... Waves change direction when they move from one material into another (matter) through the process of refraction. The wave will change direction when the speed of the wave changes.

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3 years ago
If a client's knees hurt after a one-week walking regimen, which one of the following suggestions is most appropriate?
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A, it's better to take a break to let your body rejuvenate.
5 0
3 years ago
A car initially traveling 7 m/s speeds up uniformly at a rate of 3 m/s2 until it reaches a velocity of 22 m/s. How much time did
dezoksy [38]

Answer:

t = 5 s

Explanation:

Data:

  • Initial Velocity (Vo) = 7 m/s
  • Acceleration (a) = 3 m/s²
  • Final Velocity (Vf) = 22 m/s
  • Time (t) = ?

Use formula:

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Replace:

  • \boxed{t=\frac{22\frac{m}{s} -7\frac{m}{s}}{3\frac{m}{s^{2}}}}

Solve the subtraction of the numerator:

  • \boxed{t=\frac{15\frac{m}{s}}{3\frac{m}{s^{2}}}}

It divides:

  • \boxed{t=5\ s}

How much time did it take the car to reach this final velocity?

It took a time of <u>5 seconds.</u>

8 0
3 years ago
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Personality test is aimed at being able to decipher the nature of human personality. The opposite of judging in a personality test is prospecting.

<h3>What is a personality test?</h3>

The term personality test is aimed at being able to decipher the nature of human personality through a  Personalities Test.

In this personality test different personality types have their respective opposites. The opposite of judging in a personality test is prospecting.

Learn more about personality test: brainly.com/question/8789865

6 0
2 years ago
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