consider a pipe of length l that is open at both ends. what are the wavelengths of the three lowest-pitch tones produced by this pipe?

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

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

What can you increase the strength of an electromagnet by