Yes.
No
No, it is not possible to swim through a tsunami due to the powerful and destructive force of the waves.
Electromagnetic waves, such as light and radio waves, can travel through a vacuum because they do not require a medium to propagate. This is possible due to the nature of electromagnetic radiation as oscillating electric and magnetic fields that can exist independently of a medium.
My answer is actually a question. Before satelites, when television was only possible through air waves, was it possible to block reception to a particular home? An example would be a totalitarin government blocking reception to viewers.
S waves (secondary waves) cannot pass through Earth's inner core because it is liquid. S waves travel by shearing the rock, which is not possible in a liquid medium. Only P waves (primary waves) can pass through the inner core because they can travel through both solid and liquid material.
Matter! Watching a wave travel through water is mechanical waves. Putting your ear to train tracks, and hearing the train, and feeling the vibration is a mechanical wave. Same with hearing someone talk!
S waves (secondary waves) cannot pass through liquids because they rely on shear stress to propagate, which is not possible in fluid environments. This property of S waves is used to help determine the liquid content of the Earth's interior.
yes, they can travel.
Mainly the fact that such waves can travel through empty space.
Sound waves are basically pressure waves. Molecules bounce into each other in turn to create a (longitudinal) wave. As such, sound waves can travel in virtually any medium except vacuum (which arguably isn't a medium). We are most familiar with sound waves in air. But it is possible to hear sounds under water where the sound waves are transmitted across water. In cowboy movies one sometimes sees people applying their ear to the railroad track in order to hear if a train is coming. In that case the sound waves travel through the metal in the tracks. Generally the more dense a material is, the faster the speed of sound in it is. Thus sound travels much faster in metal than air or water.
Yes, vibrations and waves can spread out through space by transferring energy from one point to another without requiring any physical medium to travel through, like sound waves in a vacuum or light waves in outer space. This is possible due to the wave nature of energy.
polarization is not possible for longitudinal waves in electromagnetic waves electric and magnetic fields are perpendicular to each other and these two are perpendicular to direction of propagation so by using vertical or horizantal slits it is possible to polarize the electromagnetic waves where as in longitudinal waves the particles vibration is parllel to the direction of propagation so it is not possible to polarize the longitudinal waves