3. A 0.200 kg air-track glider moving at 1.20 m/s bumps into a 0.600 kg glider at rest.
(a) Find the total kinetic energy after collision if the collision is elastic.
(b) Find the total kinetic energy after collision if the collision is completely inelastic.

Write the pair of fractions as a pair of fractions with a common denominator

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?