Which of the following groups of elements is ranked from least reactive to most reactive?
A. Sr, Ca, Mg, Be
B. K, Na, Li, H
C. Li, Na, K, Rb
D. K, Ca, Sc, Ti

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

Which of the following is an example of units for speed

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.