Some city officials recommend using EZVI because the process treats contaminated water. Consider
the advantages and disadvantages of the three solutions provided in the chart labeled "Contamination
Solutions". Make a recommendation to the city officials on which solution to use. Cite evidence to
support your recommendation.

What is the momentum of a 2 kg object moving at 15 meters per second

If a simple machine reduces the strength of a force, what must be increased?

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".