If the skateboarder travels at 2.1 m/s at the top of the hill, what is the average angular speed of the 2.6-cm-radius wheels during the entire trip down the hill

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

Which is the most accurate name for the ionic compound cas?