Ascientist agrees with the scientific consensus that dinosaurs have scaly skin. then he discovers a new fossil that indicates a dinosaur had feathers. the scientist refuses to consider the new evidence because it does not agree with the accepted ideas. the scientist is

The correct answer is - biased.

When a scientist is sticking to its position and way of thought, even though there's a presented proof that confirms that his/hers position is wrong, and the facts are in a totally different direction, it means that the scientist is biased. This, weirdly enough, is a very common thing in the scientific circles, and very often it is connected with pride, which is definitely not how scientist should act.

490 n

f=125n a=2.5m/s2