Abilliard ball moving at 5.00 m/s strikes a stationary ball of the same mass. after the collision, the first ball moves at 4.33 m/s at an angle of 30 degrees with respect to the original line of motion. a. find the velocity (magnitude and direction) of the second ball after the collision. b. was the collision inelastic or elastic? (make a claim and support with evidence.)

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

Which of the following are appropriate acceleration units?

Acar travels 40m in 8 seconds find the car speed