1.1.2 Quiz: What is Science? Question 6 of 10 Which situation is most likely to lead to improving a scientific theory? O A. Performing experiments that have never been done before O B. Gathering scientists for a brainstorming session C. Analyzing the history of how a theory was developed OD. Increasing public awareness of the need for scientific research

Explanation:

Science can be defined as the systematic pursuit of knowledge that seeks to understand all substances (physical and behavioral) in nature through experiments to either agree or disprove hypothesis that surrounds this substances. Please note that this hypothesis can be made by the experimenter or any other person that might not be involved in the actual experimental procedures.

Question 6

To improve a scientific theory, performing novel experiments on this theory will provide more clarity on this theory. It could reveal the limitations of this theory or could also reveal aspect(s) of the theory that can be better enhanced. For instance, several novel experiments by different scientists have helped improve the Dalton's atomic theory over time leading to the modification of the theory. Thus, the correct option here is A

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.