On a nice summer day when the temperature is 23 C, you purse your lips and whistle across the top of an empty pop bottle that is 29 cm tall and has NO BOTTOM. What must be the frequency of your whistle to make the air in the bottle vibrate in the fourth resonant length?vibrational cycles in 20 seconds. Determine the frequency, period, wavelength and speed for this wave.​

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?