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What are two facts about waves?
that they are fast and they rise from the ocean
Is it possible for two identical waves travelling in the soame direction along a string to give rise to a stationary wave?
No, it is not possible. For a stationary wave, two identical waves should travel in opposite direction along a string.
What is the source of energy for waves?
The question asks for the source and may mean the energy source that generates the waves. Alternatively, the question may be asking how waves can be a source of energy. In the first case, energy goes into the wave and in the second case energy comes out of the wave. Briefly, waves are the regular repetition of an action, which may be vertical rise and fall of water as in water waves or compression and rarefaction of air as in sound waves or regular variations in electromagnetic fields as in light or radio waves. In all these cases, waves also move which is another characteristic. (To get technical, there are also standing waves but such waves may be taken to be two counter moving waves.) Physical waves are generated when the medium in which they exist is caused to move by some source of energy. A vibrating drum head makes a sound wave. The wind makes water waves. In the case of electromagnetic waves, the source of the fields, i.e. charges and currents, move in a regular way to generate the waves. The "source" of energy is the the energy that goes into moving the medium, e.g. the wind or mechanical motion of the drum membrane or the causative forces that move charges and currents in electromagnetic waves. In these cases, energy comes from the "source" to create the wave. To have a wave act as an energy "source", or to get energy out of a wave, you have to have the waving or oscillating material exerting a force on something else. Clearly, water waves may exert a buoyant force on a floating object, for instance, and that floating object as it moves up and down may exert a force and thereby do work and so act as an energy source. The same applies to sound, but the pressure waves are typically going to create movement over very small, perhaps micron scales, so mechanical work is less obvious. Perhaps more obvious would be sound causing an object to vibrate and that vibration being converted into heat energy. In the case of electromagnetic waves, the microwave oven actually heats objects by having the electromagnetic waves act on charges in atoms and molecules which then physically move and vibrate and that motion is heat. In summary, there are many kinds of waves and to create a wave there must be an energy source. The waves then contain that energy and the energy can be extracted from the wave thereby diminishing the wave.
Does heated air rise or sink?
rise
Why do sonic booms come two at a time?
When an object passes through the air, it creates a series of pressure waves in front of it and behind it. These waves travel at the speed of sound, and as the speed of the object increases, the waves are forced together, or compressed, because they cannot "get out of the way" of each other, eventually merging into a single shockwave at the speed of sound. This critical speed is known as Mach 1 and is approximately 1,225 kilometers per hour (761 mph) at sea level at room temperature.In smooth flight, the shock wave starts at the nose of the aircraft and ends at the tail. Because directions around the aircraft's direction of travel are equivalent, the shock forms a Mach cone with the aircraft at its tip. So the faster it goes, the finer, (more pointed) the cone.There is a rise in pressure at the nose, decreasing steadily to a negative pressure at the tail, followed by a sudden return to normal pressure after the object passes. This "overpressure profile" is known as an N-wave because of its shape. The "boom" is experienced when there is a sudden change in pressure, so the N-wave causes two booms, one when the initial pressure rise from the nose hits, and another when the tail passes and the pressure suddenly returns to normal. This leads to a distinctive "double boom" from supersonic aircraft.IN SHORTER WORDS:A separate shock wave is created at both the front and back of the airplane.
What is a single rise or depression in a wave?
pulse
A single rise or depression in a wave?
it is a PULSE
Does the atmosphere cause water level to rise up?
It can do. Winds in the atmosphere cause waves. Also the low pressure in the centre of a depression can cause a elevation in sea level called a storm surge.
Which of these did not rise during the Great Depression?
consumerism
Was the severe rise is in unemployment caused by the Great Depression?
the rise of unemployment was because of the great depression because the owners didn't need workers when the stock market crashed.
What is a rise in waves out in the open ocean called?
Swells
What are two facts about waves?
that they are fast and they rise from the ocean
This caused worldwide turmoil and the rise of powerful dictators?
The Great Depression and World War 1 unresolved issues contributed to the rise of the dictators of Mussolini, Hitler, and Franco.
How did the depression and the treaty of Versailles led to the rise of Adolf Hitler?
Yeaa
What is a time when prices rise which decreases purchasing power of money?
Depression
How is the 21st amendment related to the Great Depression?
A production of sales or "bootleg" liquor continued to rise and that's how the Great Depression began.
What is the rise of totalitarianism?
The rise of totalitarianism happens during the Great Depression and before WWII. The governments associated are fascism, communism, the Nazi Party, and socialism. It is the rise of governments with dictators.
