Pressure is force over area. So assuming your cube is at rest and on earth, then the force is mass x gravity and the pressure is mass x gravity / area.
A string quartet is made up of four musicians playing two violins, a viola, and a cello. These are all string instruments played either by plucking the strings or using a bow. The violins are the smallest and typically play the higher notes. The viola and cello are larger instruments and play the lower notes.
The violin is the smallest and highest pitched instrument in the string family. The viola is a little larger and deeper in sound. The cello is much larger than the viola and produces a rich, mellow tone. The Double Bass is the largest member of the string family and has a very deep tone. Woodwind Family. Piccolo, Flute, Oboe, English Horn, Clarinet, Bass Clarinet, Bassoon & Contrabassoon . Most of the woodwind instruments were once of made entirely of wood. They are now made with wood, metals and/or plastic. Woodwind instruments make sounds in different ways. The flute and piccolo, make a sound by blowing air across the mouthpiece. The clarinet and saxophone use a single reed (piece of cane or fiberglass), which vibrates, to produce a sound.