Homework Help: Physics: true or false

Posted by sophie on Saturday, April 4, 2009 at 6:23pm.

Doubling the amplitude of a wave will double the amount of energy the wave can transfer.
A. True
B. False <---answer (not sure)

The medium determines the speed through which most mechanical waves will travel.
A. True <---answer (not sure)
B. False

Physics: true or false - bobpursley, Saturday, April 4, 2009 at 6:47pm
both are correct. In the first one, energy is proportional to amplitude squared.

On the second, the inertia and the bulk modulus (elasticity or compressibility) are the items that determine speed in mattter. These are physical properties of the medium.
Physics: true or false - sophie, Saturday, April 4, 2009 at 6:53pm
Thanks

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