Question
In: Physics
Ocean waves carry a lot of energy – according to the Bureau of Ocean Energy Management,...
Ocean waves carry a lot of energy – according to the Bureau of Ocean Energy Management, about 2,640 TWh/yr (terawatt-hours per year) off the immediate coast of the US. 1 TWh/yr is enough to power 93,850 average U.S. homes. If some of this energy could be harnessed, it could be a great source of clean, renewable energy. Assume that an ocean wave is described by a sinusoidal transverse wave along the surface of the ocean and that has an amplitude of 2.0 m, a frequency of 0.25 Hz, and a wavelength of 130 m. Make a model (i.e. write down an equation and calculate) for the energy that a wave-energy harnessing buoy shown below will generate from those waves per cycle and in one whole day. How many homes could this amount of energy power per year? Assume that the buoy always floats at the surface and that the generator shown on the right will convert all of the gravitational energy of the buoy into usable electric energy. The combined mass of the buoy and the translator is 50.0 kg. Deeper thinking question (write a sentence or two in response): Where does the wave energy come from? What happens to the wave after it has passed the buoy? Why?Hints: (i) What is the total vertical movement of the buoy in one wave cycle? (ii) How much gravitational potential energy does the buoy gain from the upward movement in each wave cycle?(iii) How many wave cycles pass the buoy in one hour and in one day?
Solutions
genius_generous answered 2 years agoRelated Solutions
Ocean waves carry a lot of energy – according to the Bureau of Ocean Energy Management,...
Ocean waves carry a lot of energy – according to the Bureau of
Ocean Energy Management, about 2,640 TWh/yr (terawatt-hours per
year) off the immediate coast of the US. 1 TWh/yr is enough to
power 93,850 average U.S. homes. If some of this energy could be
harnessed, it could be a great source of clean, renewable energy.
Assume that an ocean wave is described by a sinusoidal transverse
wave along the surface of the ocean and that has an amplitude...
Fluid Mechanics: The speed of shallow water waves in the ocean (e.g., seismic sea waves or...
Fluid Mechanics:
The speed of shallow water waves in the ocean (e.g., seismic sea
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and the acceleration due to gravity. Derive an expression for wave
speed.
An oceanographer believes that the median height of the waves at Ocean City is 2.8 feet....
An oceanographer believes that the median height of the waves at
Ocean City is 2.8 feet. The wave heights are measured for a random
sample of 20 days. The data are as shown here. At , is there enough
evidence to reject the oceanographer’s claim?
3.6
2.1
2.3
2.1
2.7
3.2
3.9
3.4
3.0
2.9
2.0
1.9
3.2
3.5
2.8
1.8
2.3
3.7
3.9
4.2
Test for Normality.
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Basics of photons and waves energy , radiation and frequency.
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A motorboat is speeding at 12.3 m/s through a group of periodic ocean waves. When the...
A motorboat is speeding at 12.3 m/s through a group of periodic
ocean waves. When the motorboat travels in the same direction as
the waves, it smashes into 6.5 waves per minute. When the motorboat
travels in the opposite direction to the waves, it smashes into 34
waves per minute.
(a) Calculate the speed of the ocean waves.
m/s
(b) Calculate the frequency of the ocean waves.
Hz
(c) Calculate the wavelength of the ocean waves.
m
A storm generates large waves in the Pacific Ocean. On November 25, 2008, 6pm, swell with...
A storm generates large waves in the Pacific Ocean. On November
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wave height of 5m reaches an exposed location at the coast of
Southern California. At 6am of the next
day, the wave height is 4m. The water depth within 100 km of the
coast is 1000 m and 3000 m
everywhere else. All waves have a steepness of ak=0.25. [For
formulas please refer to notes from the
lecture slides].
a) How far offshore...
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Ocean Thermal Energy Conversion (OTEC) systems play a major
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Therefore, you are asked to prepare a report on various critical
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A proposed Ocean Thermal Energy Conversion (OTEC) plant draws
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according to the US census bureau, the population of the US seniors65 and older, in the...
according to the US census bureau, the population of the US
seniors65 and older, in the year 2004 was approximately 36,300,000
people. In the year 2010, it was 40,267,984 people. the senior
population was growing at an approximately constant rate during
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(a)use this information to express the US senior population as a
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(b) what is slope of your function? what does this mean in the
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(c) what would this model...
According to the Bureau of Crime Statistics and Research of Australia, as reported on Lawlink, the...
According to the Bureau of Crime Statistics and Research of
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Set up a hypothesis test to decide whether the mean length of
imprisonment for motor- vehicle-theft offenders in Sydney differs
from the national mean in Australia.
Explain what each of the following would mean
Type I error
Type II error
Correct decision
Now suppose that the results of carrying out the hypothesis...
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