Una ambulancia que emite un sonido de 260Hz va a una velocidad de 100m/s. Un motociclista se aleja de la ambulancia con una velocidad de 10m/s. ¿Con qué frecuencia escuchará el sonido de la ambulancia el motociclista?

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?