What is the vertical component of the velocity just before it hits? (Choose upward as the
positive vertical direction)
Answer in units of m/s.

An observer that stands still as the electron moves by him, will observe

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.