Amover hoists a 50 kg box from the ground to a height of 2 m. what was the change in the box's energy

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.

In an experiment, how can i change human errors? be specific.

Explain why you think this diagram shows what happened to the carbon in the biodome.