In light of your answer to part a, what would you expect to see if a circular piece of white paper with radius 5cm were placed 30cm from the lens with its center on the axis of the lens?

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

If y gets smaller as x gets bigger and y have an relationship?

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)