Will tsunami waves travel forever if there was no land?Why do tsunami waves begin with the water flowing away...
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Will tsunami waves travel forever if there was no land?
Why do tsunami waves begin with the water flowing away from shore?Physics of tsunami: the relationship between wavelength, sea depth and the height of the waterWave with mass transport?Tsunami : power of destructionWhy do longitudinal waves travel faster than transverse waves?Fluid dynamics tsunamiHow do traffic waves travel downstream?Besides vortex rings, are there other types of traveling waves that can carry matter as well as energy?Will a longitudinal wave propagate “forever” in a tube?Question about the difference between a tsunami caused by a meteorite and one caused by an under water earthquake
$begingroup$
If there was no land for tsunami waves to collide with, can the waves travel around the globe for forever?
waves water solitons tsunami
edited 17 hours ago
Qmechanic♦
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
$endgroup$
add a comment |
$begingroup$
If there was no land for tsunami waves to collide with, can the waves travel around the globe for forever?
waves water solitons tsunami
edited 17 hours ago
Qmechanic♦
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
$endgroup$
2
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago
add a comment |
$begingroup$
If there was no land for tsunami waves to collide with, can the waves travel around the globe for forever?
waves water solitons tsunami
edited 17 hours ago
Qmechanic♦
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
$endgroup$
If there was no land for tsunami waves to collide with, can the waves travel around the globe for forever?
waves water solitons tsunami
waves water solitons tsunami
edited 17 hours ago
Qmechanic♦
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
edited 17 hours ago
Qmechanic♦
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
edited 17 hours ago
Qmechanic♦
108k122021255
edited 17 hours ago
Qmechanic♦
108k122021255
edited 17 hours ago
Qmechanic♦
108k122021255
108k122021255
asked 17 hours ago
BodvarionBodvarion
492
asked 17 hours ago
BodvarionBodvarion
492
asked 17 hours ago
BodvarionBodvarion
492
492
2
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago
add a comment |
2
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago
2
2
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
To answer this, I would appeal to the general principle which we call the 2nd law of thermodynamics. One way of expressing it is that the entropy of an isolated system cannot decrease. This means that in order to keep going for ever, a wave motion would have to involve no entropy increase. But almost all processes involve some increase of entropy, and in the case of water waves this is certainly going to happen, because of viscosity and turbulence in the water. Therefore the wave will gradually dissipate its energy and eventually die down.
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
$endgroup$
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
|
show 1 more comment
$begingroup$
The waves will not travel forever.
Water particles moving against and around each other will have friction, and the friction will cause motion energy to be converted to heat (which will dissipate throughout the water and air). The wave will eventually cease to exist unless energy is added.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Of course, no. Tsunamis are a series of waves, with much higher wavelengths, speed, and period than the normal ones. Normal ocean waves only involve motion of the uppermost layer of the water, but Tsunami waves involve the movement of the entire water column from surface to seafloor.
However, they are still akin to normal waves when it comes to dissipative forces such as friction between layers (or viscosity), just that it takes longer due to the sheer amount of energy density they carry. The mass of water getting displaced is particularly high, and due to high inertia, they tend to keep moving until resistance offered by the shape of the shoreline and other dissipative forces take over. Conservation of energy ensures the dissipation through heat, sound (which ultimately decays to thermal energy of the medium).
Tsunami waves have much longer periods ranging from 10 minutes to 2 hours, wavelengths of 100-500 km, and travel at speeds of 800-1000 km per hour[1]. Near the shore, the killer waves slow to between 10 to 20 mph (16 to 32 km/h) and gain height. In reality, Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline [2].
answered 13 hours ago
exp ikxexp ikx
824221
$endgroup$
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
To answer this, I would appeal to the general principle which we call the 2nd law of thermodynamics. One way of expressing it is that the entropy of an isolated system cannot decrease. This means that in order to keep going for ever, a wave motion would have to involve no entropy increase. But almost all processes involve some increase of entropy, and in the case of water waves this is certainly going to happen, because of viscosity and turbulence in the water. Therefore the wave will gradually dissipate its energy and eventually die down.
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
$endgroup$
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
|
show 1 more comment
$begingroup$
To answer this, I would appeal to the general principle which we call the 2nd law of thermodynamics. One way of expressing it is that the entropy of an isolated system cannot decrease. This means that in order to keep going for ever, a wave motion would have to involve no entropy increase. But almost all processes involve some increase of entropy, and in the case of water waves this is certainly going to happen, because of viscosity and turbulence in the water. Therefore the wave will gradually dissipate its energy and eventually die down.
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
$endgroup$
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
|
show 1 more comment
$begingroup$
To answer this, I would appeal to the general principle which we call the 2nd law of thermodynamics. One way of expressing it is that the entropy of an isolated system cannot decrease. This means that in order to keep going for ever, a wave motion would have to involve no entropy increase. But almost all processes involve some increase of entropy, and in the case of water waves this is certainly going to happen, because of viscosity and turbulence in the water. Therefore the wave will gradually dissipate its energy and eventually die down.
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
$endgroup$
To answer this, I would appeal to the general principle which we call the 2nd law of thermodynamics. One way of expressing it is that the entropy of an isolated system cannot decrease. This means that in order to keep going for ever, a wave motion would have to involve no entropy increase. But almost all processes involve some increase of entropy, and in the case of water waves this is certainly going to happen, because of viscosity and turbulence in the water. Therefore the wave will gradually dissipate its energy and eventually die down.
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
answered 16 hours ago
Andrew SteaneAndrew Steane
5,8941737
5,8941737
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
|
show 1 more comment
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
4
4
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
$begingroup$
Maybe I didn't drink enough coffee in order to follow your logic but I feel some information is missing. What is the system you're talking about? Is it really isolated? Why couldn't a wave keep going forever after some entropy increase?
$endgroup$
– Eric Duminil
14 hours ago
1
1
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
$begingroup$
The isolated system here is planet Earth including its atmosphere and ocean. The wave could be maintained for a while if the rest of the Earth were feeding energy into it, but there is no natural process doing that. Entropy increase (at finite temperature) means energy moving from a regular to an irregular form; hence loss of energy in the wave motion itself.
$endgroup$
– Andrew Steane
13 hours ago
1
1
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
$begingroup$
If your {Earth + Atmosphere + Ocean} system really were isolated, there would be no wave to begin with, would it?
$endgroup$
– Eric Duminil
13 hours ago
4
4
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
$begingroup$
@EricDuminil The waves going on "forever" (my comment under the OP notwithstanding) because earth is not an isolated system are called tides ;-).
$endgroup$
– Peter A. Schneider
13 hours ago
3
3
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
$begingroup$
I will say the one reason I could think this might not be true would be if the thermal energy from the sun were somehow keeping this going. I don't know if it would be possible, but the tsunami might have some way of reaching a sort of resonance with the heating and cooling cycles to keep it's energy. That seems unlikely enough that it's probably more confusing to add it to the answer (perhaps even physically impossible still, but that would take some simulations).
$endgroup$
– JMac
12 hours ago
|
show 1 more comment
$begingroup$
The waves will not travel forever.
Water particles moving against and around each other will have friction, and the friction will cause motion energy to be converted to heat (which will dissipate throughout the water and air). The wave will eventually cease to exist unless energy is added.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
The waves will not travel forever.
Water particles moving against and around each other will have friction, and the friction will cause motion energy to be converted to heat (which will dissipate throughout the water and air). The wave will eventually cease to exist unless energy is added.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
The waves will not travel forever.
Water particles moving against and around each other will have friction, and the friction will cause motion energy to be converted to heat (which will dissipate throughout the water and air). The wave will eventually cease to exist unless energy is added.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
The waves will not travel forever.
Water particles moving against and around each other will have friction, and the friction will cause motion energy to be converted to heat (which will dissipate throughout the water and air). The wave will eventually cease to exist unless energy is added.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 14 hours ago
Michael TeterMichael Teter
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 14 hours ago
Michael TeterMichael Teter
1112
answered 14 hours ago
Michael TeterMichael Teter
1112
1112
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Michael Teter is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
$begingroup$
Of course, no. Tsunamis are a series of waves, with much higher wavelengths, speed, and period than the normal ones. Normal ocean waves only involve motion of the uppermost layer of the water, but Tsunami waves involve the movement of the entire water column from surface to seafloor.
However, they are still akin to normal waves when it comes to dissipative forces such as friction between layers (or viscosity), just that it takes longer due to the sheer amount of energy density they carry. The mass of water getting displaced is particularly high, and due to high inertia, they tend to keep moving until resistance offered by the shape of the shoreline and other dissipative forces take over. Conservation of energy ensures the dissipation through heat, sound (which ultimately decays to thermal energy of the medium).
Tsunami waves have much longer periods ranging from 10 minutes to 2 hours, wavelengths of 100-500 km, and travel at speeds of 800-1000 km per hour[1]. Near the shore, the killer waves slow to between 10 to 20 mph (16 to 32 km/h) and gain height. In reality, Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline [2].
answered 13 hours ago
exp ikxexp ikx
824221
$endgroup$
add a comment |
$begingroup$
Of course, no. Tsunamis are a series of waves, with much higher wavelengths, speed, and period than the normal ones. Normal ocean waves only involve motion of the uppermost layer of the water, but Tsunami waves involve the movement of the entire water column from surface to seafloor.
However, they are still akin to normal waves when it comes to dissipative forces such as friction between layers (or viscosity), just that it takes longer due to the sheer amount of energy density they carry. The mass of water getting displaced is particularly high, and due to high inertia, they tend to keep moving until resistance offered by the shape of the shoreline and other dissipative forces take over. Conservation of energy ensures the dissipation through heat, sound (which ultimately decays to thermal energy of the medium).
Tsunami waves have much longer periods ranging from 10 minutes to 2 hours, wavelengths of 100-500 km, and travel at speeds of 800-1000 km per hour[1]. Near the shore, the killer waves slow to between 10 to 20 mph (16 to 32 km/h) and gain height. In reality, Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline [2].
answered 13 hours ago
exp ikxexp ikx
824221
$endgroup$
add a comment |
$begingroup$
Of course, no. Tsunamis are a series of waves, with much higher wavelengths, speed, and period than the normal ones. Normal ocean waves only involve motion of the uppermost layer of the water, but Tsunami waves involve the movement of the entire water column from surface to seafloor.
However, they are still akin to normal waves when it comes to dissipative forces such as friction between layers (or viscosity), just that it takes longer due to the sheer amount of energy density they carry. The mass of water getting displaced is particularly high, and due to high inertia, they tend to keep moving until resistance offered by the shape of the shoreline and other dissipative forces take over. Conservation of energy ensures the dissipation through heat, sound (which ultimately decays to thermal energy of the medium).
Tsunami waves have much longer periods ranging from 10 minutes to 2 hours, wavelengths of 100-500 km, and travel at speeds of 800-1000 km per hour[1]. Near the shore, the killer waves slow to between 10 to 20 mph (16 to 32 km/h) and gain height. In reality, Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline [2].
answered 13 hours ago
exp ikxexp ikx
824221
$endgroup$
Of course, no. Tsunamis are a series of waves, with much higher wavelengths, speed, and period than the normal ones. Normal ocean waves only involve motion of the uppermost layer of the water, but Tsunami waves involve the movement of the entire water column from surface to seafloor.
However, they are still akin to normal waves when it comes to dissipative forces such as friction between layers (or viscosity), just that it takes longer due to the sheer amount of energy density they carry. The mass of water getting displaced is particularly high, and due to high inertia, they tend to keep moving until resistance offered by the shape of the shoreline and other dissipative forces take over. Conservation of energy ensures the dissipation through heat, sound (which ultimately decays to thermal energy of the medium).
Tsunami waves have much longer periods ranging from 10 minutes to 2 hours, wavelengths of 100-500 km, and travel at speeds of 800-1000 km per hour[1]. Near the shore, the killer waves slow to between 10 to 20 mph (16 to 32 km/h) and gain height. In reality, Tsunamis can travel as far as 10 miles (16 km) inland, depending on the shape and slope of the shoreline [2].
answered 13 hours ago
exp ikxexp ikx
824221
answered 13 hours ago
exp ikxexp ikx
824221
answered 13 hours ago
exp ikxexp ikx
824221
answered 13 hours ago
exp ikxexp ikx
824221
824221
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2
$begingroup$
You seem to be asking whether there's such a thing as a perpetual motion machine.
$endgroup$
– Dawood ibn Kareem
3 hours ago