Check my answer(there’s one above) i really just chose my best guess on this. for the ones below, can you provide a simple explanation and the answer?what is the length of a stopped pipe that has a fundamental frequency of 153 hz when the speed of sound is 340 m/s? 28 cm 43 cm 56 cm 2.1 cm 17 cm for an open pipe of length l, what are the possible wavelengths of a standing wave? (let n = a time positive integer) 2l/3n ln l/n 2l/n a standing wave of the third harmonic is induced in a stopped pipe. the speed of sound through the air of the pipe is 340 m/s, and the frequency of the wave is 235 hz. what is the length of the pipe? 133 cm 189 cm 109 cm 124 cm warning if you answer just for free points, i will report you and they will be taken away.

In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ă—106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .

How do we measure or think of speed in the united states?

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?