Created by StemPy LabIn a resonance tube experiment, a tuning fork of frequency is held over the open end of a tube whose water level can be lowered. The first resonance is heard when the air column is long, and the second when it is long. The speed of sound in air and the end correction of the tube are
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← A gas is taken from state A to state B along two different paths, shown in the pressure-volume diagram. Along path ACB it absorbs 80 J of heat and does 30 J of work. Along path ADB it does 10 J of work. Later the gas is brought back from B to A along the curved path, and 20 J of work is done on the gas on the way. Which statement is correct?An electric dipole of dipole moment 2.0 × 10⁻⁸ C m is held in a uniform electric field of 5.0 × 10⁴ N/C, with its dipole moment at 60° to the field. How much work must an outside agent do to turn the dipole slowly until its moment points exactly opposite to the field? →
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