A stationary observer hears an ambulance approaching her with a frequency of 310 Hz. After the ambulance passes her and is moving away she now hears a frequency of 292 Hz. The speed of sound is 343 m/s. Assuming the ambulance travels at a constant speed, what is that speed

Choose the correct general statement concerning the total potential and kinetic energy at any point along the arc of swing. the total energy at any point along the arc of swing of the pendulum is always less than 12 joules. the total energy at any point along the arc of swing of the pendulum is always more than 12 joules. the total energy at any point along the arc of swing of the pendulum is always equal to 12 joules. not enough information to determine