Four students measure the mass of an object, each using a different scale. They record their results as follows: A: 49.06g, B: 49g, C: 50g, D: 49.2g. Which student used the least and most precise scale?

Asystematic approach to problem solving is called a (an)

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.

If y gets smaller as x gets bigger and y have an relationship?