A piano is mounted on the block that is driven on the frictionless horizontal surface
by the powerful spring attached to a wall. The piano player is striking one note only (600Hz,) Emitted sound has power of 8W.
a)What are the highest and lowest frequencies heard by the audience? ( Mass of the piano=300kg, mass of the block 130kg mass of the pianist 70kg . Spring constant is 106N). Initial stretching of the spring is 0.5m. (10p).

Question

A piano is mounted on the block that is driven on the frictionless horizontal surface
by the powerful spring attached to a wall. The piano player is striking one note only (600Hz,) Emitted sound has power of 8W.
a)What are the highest and lowest frequencies heard by the audience? ( Mass of the piano=300kg, mass of the block 130kg mass of the pianist 70kg . Spring constant is 106N). Initial stretching of the spring is 0.5m. (10p).