Is it a compound, element, or mixture?
1. each sample has the sample properties as every other
2.a physical combination of two or more
3.kinds of matter are present in any
4.each sample does not necessarily have the same properties as every other

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Elements on the periodic table are ordered according to their

Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?