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:
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:
where:
m = 2000 kg is the mass of the car
is the coefficient of friction
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:
B. Colloids
C. Electrolytes
D. Ions
i belive the correct answer is D