The water level in a vertical glass tube 1.00 m long can be adjusted to any position in the tube. a tuning fork vibrating at 653 hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the tube. (that air-filled top portion acts as a tube with one end closed and the other end open.) take the speed of sound to be 343 m/s. (a) for how many different positions of the water level will sound from the fork set up resonance in the tube’s air-filled portion

[05.02] what is the best explanation of the kinetic molecular theory as it relates to the energy of the molecules in the states of matter? (1 point) the molecules in a gas have greater kinetic energy than those in a liquid, which in turn have greater kinetic energy than the molecules in a solid. kinetic energy cannot be created nor destroyed, and, as a result, all states of matter have the same kinetic energy. the molecules in a gas have greater kinetic energy; therefore, they are more tightly packed than the molecules in either a liquid or a solid. the molecules in gases and liquids, in constant motion, have greater kinetic energy than those in a solid, which do not move or vibrate because their position is fixed.

Why does a smaller car get better gas mileage than a bigger one?

The index of refraction of the oil is 1.20. what is the minimum thickness t of the oil slick at that spot?