2. Two alpha particles (m=6.8 x 10'\" kg; q=+2e) are held at rest 15 x 10'5m apart. What will each alpha particle's speed be when they are an innite distance apart? (5 marks) STEP 1 STEP 2 STEP 3 3. Two protons are an innite distance apart and are launched towards each other with a speed of 1.8 x 105 mfs. How close can they get to each other before stopping? (5 marks) STEP 1 STEP 2 STEP 3