4. A toy car travels 60 m during 5.7 s at a constant speed. What is the speed of the toy car? 15.556
13.526
6.116
10.526
None of these is correct.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

How does an observation about an object differ from an inference about that object