Please carefully take your time to do these PCS211 questions about Newton's Laws!

1. [l3 Points] DETAILS SERPSE1D 5.4.P.003. MY NOTES ASK YOUR TEACHER | I PRACTICE ANOTHER A 9.00-kg object undergoes an acceleration given by 3 : (4.00 i + 900 j) m/SZ. (5:) Find the resultant force acting on the object. 2? : (E i + E i) N (b) Find the magnitude of the resultant force n e E N Need Help? 2. [l1 Points] SERPSE1D 5.1.P.001. MY NOTES ASKYOUR TEACHER PRACTICE ANOTHER A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the gure below. The tension in the wire is adjusted to have a magnitude of 14 6 N Find the magnitude of the net force exerted by the wire on the crooked tooth. :N FII 14 -]L 3. [-12 Points] SERPSE1D 5.4.P.004. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The average speed of a nitrogen molecule in air is about 6 70 X 102 m/s, and its mass is about 4.68 x 10'26 kg. (a) If it takes 4.20 >