Aparked car's horn (belonging to a musician) emits a concert a of frequency 440 on a day when the speed of sound is 342 m/s. you are in a car speeding along toward the parked car at a speed that makes the pitch appear to be a# (466hz). at what speed in meters per second are you traveling?

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

How is zig zagging a form of acceleration?

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)