If your plot of points is a perfectly flat, horizontal line, what speed is represented by the graph? 0 m/s 5 m/s
10 m/s
unlimited speed

Which wave is the result of amplification and produces a louder sound

What is part of a line has one endpoint and continues in one direction?

The radioactive isotope of lead, pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. if 1 gram of this isotope is present initially, how long will it take for 80% of the lead to decay? (round your answer to two decimal places.)