2. A 14 kg rock starting from rest free falls through a distance of 5. 0 m with no air resistance. Find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earth’s velocity. Earth’s mass is. Show all your work, assuming the rock-earth system is closed.

answer; (organisms); /// is the correct answer;

with such great emphasis put on the act and sat exams—the studying, the review sessions, taking the test, retaking the test, scholarships dependent on scores, etc.—many think the scores are the be all end all of college applications. if you have a high score, you can get into any college you want. if you have a low score, you’re doomed.