QUESTION 8 You attach a 38.7g weight to a vertical spring and let it slowly move down until it is in equilibrium By how much measured in cm the spring is stretched at equilibrium if the spring constant is 27N/m2 g-9 8m s2 and do not include the units in your answer QUESTION 9 Speed of light in a medium is 2 04x108m/s What is the index of refraction for this medium? Use two decimal in your answer QUESTION 10 In transform plate boundaries the two plates move away from eqch other move side-to-side relative to each other stay where they are crash into one another