A friend of yours is loudly singing a single note at 420 Hz while racing toward you at 25.0 m/s on a day when the speed of sound is 341 m/s . Part A What frequency do you hear

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?