You are holding a siren, and you hear a frequency of 1200 Hz from it when you are standing still. You now move directly toward a cliff wall at a speed of 1/5 the speed of sound. What frequency do you hear as an echo from the cliff wall?

Figure 9 on page 362 shows various motions of balls. the curved path followed by the yellow ball in b in picture b is result of a) inertia b) centripetal motion c) gravity and horizontal velocity d) linear motion

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg