"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.
It depends on the objects, how far apart they are and whether or not one can be seen from the other. If they are moderately far apart, echo location (sonar or radar) located at one of the objects can be used. A beam of radio or sound waves is aimed at the object and the time taken to receive an echo is measured. Since the speed of radio waves or sound waves in the relevant medium is known, the distance travelled by these waves can be calculated. The distance to the object is then half the calculated distance (the waves have to go there and come back).
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
Send him brain waves
Humorous answer: A seismograph never answers; it just 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.