To understand the terms in the Doppler shift formula. The Doppler shift formula gives the frequency fL at which a listener L hears the sound emitted by a source S at frequency fS: fL=fSv+vLv+vS, where v is the speed of sound in the medium, vL is the velocity of the listener, and vS is the velocity of source. Part A The velocity of the source is positive if the source is . Note that this equation may not use the sign convention you are accustomed to. Think about the physical situation before answering. View Available Hint(s)

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?