1. A pipe of length 6.3 m is closed at one end and sustains a standing wave at its second overtone. Determine the distance between a node and an adjacent antinode.

____m

2. (a) A rectangular gasoline tank can hold 44.0 kg of gasoline when full. What is the depth of the tank if it is 0.400 m wide by 0.900 m long? FYI, the table of densities in the textbook refers to gasoline as "petrol". _____ m (b) What is the volume of the tank? (It is suitable for a passenger car.)

_____ gal

3. A steel wire in a piano has a length of0.9000m and a mass of4.70010^-3kg. To what tension must this wire be stretched so that the fundamental vibration corresponds to middle C (f_C= 261.6 Hz on the chromatic musical scale)? _____N

Someone please help with each question