S waves cause more damage,. A P wave, or compressional wave, is a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving. An earthquake’s P-wave arrived at a seismograph station at 02 hours 40 minutes 00 seconds. In sinus rhythm when the SA node is the pacemaker, the mean direction of atrial depolarization (the P wave axis) points downward and to the left, in the general direction of lead II within a coordinate between 15 o and 75 o and away from lead aVR. S waves only travel through solids and do not travel through the liquid outer core of the Earth. If you were to trace your finger across the wave in the diagram above, you would notice that your finger repeats its path. Scientists studying the waves produced by earthquakes learned that Earth's core has separate liquid and solid layers. The PR interval is the distance between the onset of the P-wave to the onset of the QRS complex. They are longitudinal waves which means that the direction of motion and propagation are the same. Rock breaking along a fault line release the energy stored in the rocks when the rocks break due to pressure inside the Earth creating primary waves that are also known as compression waves. The wave animations illustrate wave characteristics and particle motion as listed in Table 1. The P wave is the first positive deflection on the ECG and represents atrial depolarisation. Difference between p waves and s waves. To see a animations of spherical longitudinal waves check out: Sound Radiation from Simple Sources; Radiation from Cylindrical Sources. 2 See answers Answer 1.0 /5 0. jjdiddy470 +2 tramwayniceix and 2 others learned from this answer The answer is b and c because both of them are 90 degrees apart and the make a … Seismic Waves on Seismograms and Particle Motion Diagrams: The wave motion for actual earthquake motions, as recorded on 3-component seismograms, can be compared with the theoretical wave motion for the various wave types that are illustrated in the seismic wave … They travel as regions of expansion and compression through solid rock and liquid rock (or magma) ; they are faster than S - Waves (Discovery Education). P-waves can be transmitted through, liquids, gases or solids. P waves travel faster in a push-pull pattern while the slower S waves travel in an up-down pattern. The P-wave reflects atrial depolarization (activation). S waves cause more damage,. The P wave will be the first wiggle that is bigger than the rest of the little ones (the microseisms). ECG interpretation traditionally starts with an assessment of the P-wave.

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