What two factors will most likely change the speed of a mechanical wave?
amplitude and wavelength
x frequency and amplitude
period and wavelength
period and amplitude
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C

Period and wavelength

Explanation:

Mechanical wave requires a medium for it propagation transfering energy through a medium. The waves can move over long distances but limited due to the movement of the medium of the material causing the oscillating material not move far. This depends on the period and the wavelength of the wave.

b

step-by-step explanation: a third of 24 is 8, 8 times 3 is 24 so 8 - 2 would be 6

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.