A pair of scientists proposes two different theories to explain the same set of observations. Which of the following best explains the value of these competing theories?Competing theories can be a source of new, testable ideas.
Competing theories are necessary to transform a theory into a law.
Competing theories generate controversy that helps popularize ideas.
Competing theories allow scientists to combine the most interesting aspects of both theories.

Answers

Answer 1

Answer:

Answer:

Competing theories can be a source of new, testable ideas.

Explanation:

Theory is the set of knowledge that seeks to explain, with a high degree of accuracy, all-encompassing phenomena of nature, that is, it is different from the meaning of the word "theory" used in everyday life, when we say that something "is only a theory "in the sense that it is a mere speculation.

Competing theories present a much larger set of knowledge, which gives the universe a source of new and testable ideas

Answer 2

Answer: Competing theories can be a source of new, testable ideas.

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A 2.00 × 103 kg car rounds a circular turn of radius 20.0 m. If the road is flat and the coefficient of static friction between the tires and the road is 0.70, how fast can the car go without skidding?

Answers

Answer:

11.7 m/s

Explanation:

In order for the car to remain in circular motion along the road and not to skid, the frictional force between the tires and the road must be equal to the centripetal force.

Therefore, we can write:

$\mu mg = m(v^2)/(r)$

where:

m = 2000 kg is the mass of the car

$\mu=0.70$ is the coefficient of friction

$g=9.8 m/s^2$ is the acceleration due to gravity

v is the speed of the car

r = 20.0 m is the radius of the turn

Substituting and solving for v, we find the speed of the car:

$v=√(\mu gr)=√((0.70)(9.8)(20.0))=11.7 m/s$

Rate at which electric energy is converteto another form (2 words)

Answers

electric power!!!!!!!

A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 65.0° with the horizontal. From what height above the ground the marble was thrown. How far from the base of the building, did the marble land?

Answers

The answer is 52.79 m.

I used this formula to get the formula for Vy:
v^2=vi^2+2(a)(x)
And got
Vy=square root (19.6 h)

Then I used that and put it in this formula:

tan(65) =Vy/Vx

tan(65) = square root (19.6 h)/15.0

Then I rearranged it to:

h=[(15.0)(tan65)]/19.6

h=52.79 m

The answer for this question is 52.79

_______ are atoms that carry an electric charge. A. Nonelectrolytes
B. Colloids
C. Electrolytes
D. Ions

Answers

ions is the answer i believe

i belive the correct answer is D

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