3) A bird flies north with a force of 11N, the air resistance is 2N. What is the resultant force?

When using the scientist method, which step comes last?

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?

How do cracks affect the rate of weathering?