"A mailbox" fits. I don't know if it's what the person who invented the riddle had in mind or not.
It depends (IS) the frequency of the waves.
Vertical and horizontal surface waves are both types of seismic waves that travel along the Earth's surface. They are both considered to be surface waves, which means they do not penetrate deep into the Earth like body waves. These waves are typically the most destructive during an earthquake due to their ability to cause significant ground shaking and damage.
Ripple.
Count the number of waves passing a point in one second. That is frequency. Or count waves for 10 seconds and divide by 10.
Comparison of waves going through the solid inner core and those just skimming it can show the rotation of the inner core.
Tell me answer
Tell me answer
As long as the earth keeps turning and the moon revolves around the earth
This riddle refers to "yeast" as the answer. Yeast rises when used in baking in the morning, similar to dough, but it is a common ingredient in beer brewing, where it creates carbonation, like waves.
As long as the earth keeps turning and the moon revolves around the earth
Humorous answer: A seismograph never answers; it just waves.
Send him brain waves
Actually, radio waves do go out into space. However, depending on frequency, they do tend to bounce off of the ionosphere, which is why lower frequency waves such as AM and longwave have greater (on Earth) range than higher frequency waves, such as FM or microwave.
Partical motion is the answer
B. Never associated with charged particles. Matter waves, as described by quantum mechanics, are associated with particles, whether they are charged or uncharged.
As waves slow down and approach shore, their wavelength decreases while their amplitude increases. This causes the waves to become steeper and eventually break as they approach shallow water. The energy of the waves is dissipated as they break, resulting in the crashing of waves on the shore.
The moon gives us waves not provided by tsunamis and it also keeps our gravitational pull limited.