Answer:
It increases confidence because the more times you conduct the same experiment over and over should either prove your hypothesis right and wrong and eliminate any random occurrences that might affect your results.
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Explanation:
I think the correct answer would be the first option. Scientific models are used to allow scientists to extrapolate or interpolate data. Or in other words, allow them to predict values without performing more experiments. However, they are obtained by experiments first.
A :-) 1.) speed is a scalar quantity.
2.) Velocity is a vector quantity.
3.) Distance is a scalar quantity.
4.) Force is a vector quantity.
5.) Kinetic is a scalar quantity.
