If someone is whispering, but you cant hear them, how do you fix that problem?

a tell them to decrease the amplitude of their sound waves.
b tell them to increase the wavelength of their sound waves.
c tell them to increase the amplitude of their sound waves.

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.