How did UC Berkeley seismologists get a 10-second warning before the damaging seismic waves hit? Given what you know about seismic waves, what do you think the warning system detected and what did it alert scientists to?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx