Comments: wave YouTube video.
adm-in wrote:
Video Plugin - Search Turtilla Videos right from your browser. Install now!
Please could you help me with these wave problems??? I would really appreciate it. Have a terrific day and thanks in advance.
10.) A certain ocean wave has a frequency of 0.05 hertz and a wavelength of 10 meters. What is the wave?s speed?
a. 200 m/s
b. 10 m/s
c. 0.5 m/s
d. 0.05 m/s
11.) A wave created by shaking a rope up and down is called a
a. longitudinal wave
b. transverse wave
c. standing wave
d. constructive wave
14.) Waves in a lake are 5.00 m in length and pass an anchored boat 1.25 s apart. What is the speed of the waves?
15.) A radio station broadcasts at a frequency of 660 kHz. Knowing that radio waves have a speed of 3.0 * 10 ^ 8 m/s, calculate the wavelength of these waves.
...
I owe a 94 Yj and i was driving down the road today when i was approaching a stoplight. on the otherside of the intersection was one of those new jeep commaders or w/e. the ones that look like hummers. Anyways, he waved to me, and seeing as how he has like 5 points or none, idk for sure with all the new models, I wasnt sure wether to wave back, seeing as how they never ever wave, or to regect the wave. I sat there for a moment and thought about what to do. When he waved again, waiting for me to wave back. I have read the jeep wave rules before but i was baffled. I adventually waved back but i wasnt sure what to do. I was a little confused about y he waved at me first and did not wait for me to wave to him. I guess he had some balls driving that plastic piece of shit passed me, but im still uncertain wether or not to wave to the new suv jeeps. Any thoughts would be appriciated.
...
1) A company is exploring the Earth's crust for minerals. They decide to use seismic waves to help locate the densest deposit possible. It's a deposit of 1.2 km below the surface and they receive a reflected wave back in 0.64 seconds after the wave is made. What type of seismic wave are they measuring?
[so i did V=d/t --> 1.2/0.64=1.875. and the velocity of a p-wave is 7km/s while the velocity of a s-wave is 4km/s. is this right so far?]
2) An oil company is exploring the Earth's crust for natural gas. They decide to use seismic waves to help locate the deposit. They discover a deposit of 6.5 km below the surface and receive a reflected wave back 1.86 seconds after the wave is made. What type of wave are they measuring?
[i did the same thing for #1 and got 3.49...]
please help!!!!
...
i have data on significant wave height and mean wave period. i need to find out wave length (? lambda). i know that wave length equals wave speed (c) times wave period. i also know that wave speed equals the square root of ((gravity*wave length)/2*pi) or c=sqrt((9.8*?)/(2*pi())).
can somebody help me solve this for wave length (?) please?
...
Please could you help me with these wave problems??? I would really appreciate it. Have a terrific day and thanks in advance.
10.) A certain ocean wave has a frequency of 0.05 hertz and a wavelength of 10 meters. What is the wave?s speed?
a. 200 m/s
b. 10 m/s
c. 0.5 m/s
d. 0.05 m/s
11.) A wave created by shaking a rope up and down is called a
a. longitudinal wave
b. transverse wave
c. standing wave
d. constructive wave
14.) Waves in a lake are 5.00 m in length and pass an anchored boat 1.25 s apart. What is the speed of the waves?
15.) A radio station broadcasts at a frequency of 660 kHz. Knowing that radio waves have a speed of 3.0 * 10 ^ 8 m/s, calculate the wavelength of these waves.
...
1. the refelcted wave has about the same amplitude as the incident wave and is inverted.
2. the reflected wave has a lesser amplitude than the incident wave and is inverted.
3. the reflected wave has a greater amplitude than the incident wave and is upright.
4. the reflected wave has about the same amplitude as the incident wave and is upright
...
My hair is thick and wavy and i can not find anything that makes my hair have good waves. Usually i go to sleep with my wet/damp hair in a loose bun and then the next morning i just add some wave or curl stuff to it and straighten my bangs. But during the day my hair loses the wave and gets kind of frizzy. I mean i have tried hairspray, wave boost stuff, and nothing seems to work. I do play with my hair during the day trying to keep it in place, but my waves aren't waves. PLEASE HELP ME!!!! I really need something that will give my hair pretty waves and stay in place during the day!!!! by the way i dont have time to use a wave or curling iron in the morning!!!!
...
Hi! I've got a few questions here, and I tried to answer them... can someone /please/ check them?
There are two types of body waves that travel out from the epicenter of an earthquake. They have unique characteristics. Choose each of the characteristics that describes a P-wave.
a| causes circular record lines on the seismograph
b| fastest of the two waves
c| compresses rock as the waves travel through it
d| can travel through both solids and liquids
{I put b, c, d}
There are two types of body waves that travel out from the epicenter of an earthquake. They have unique characteristics. Choose each of the characteristics that describes an S-wave.
a| can travel only through solids
b| slower of the two waves
c| cause horizontal records on a seismogram
d| distorts or shears rock as it travels though it
{I put a, b, d}
...
What I feel is wave nature of light can also account for photoelectric effect if we reconsider nature of light. light is considered both as particle and as wave but there is no mean of visualising both nature of light.What I believe is, light is a particle(charged) moving in a manner that its path forms a wave we already know that when a charged particle is stationery it only has electric field but when it is moving it has both electric and magnetic field while we know light has both electric as well as magnetic field therefore can't we consider light as chrged particles moving in wave form one question may arise that if light considered as particle(charged) moving in wave form than what is the restoring force maintain such wave,then it is the electric and magnetic forces acting on moving charged paricles which make particle of ligh vibrate as wave. If this proposed nature of light is accepted than it would account for optical as well as photoelectric phenomenon. please contact me.
...
2) how does a change in speed cause a wave to change direction
3)what are two types of interference
4)what determines the amplitude of a wave produced by interference
5)wave A has the same amplitude as wave B what will happen when a crest of wave A meets a trough a wave B
6)what is a standing wave
7)how does nodes and antinodes form in a standing wave
...
A wave that vibrates along a single pane is a....
A. Visible wave
B. Invisible wave
C. Polarized wave
D. Longitudinal wave
Thanks in advance for any answers. If you know the answer, please help me out here.
...
A water wave traveling in a straight line on a lake is described by the equation:
y(x,t) = (3.75)cos(x/0.450cm + t/5.40s)
where y is the displacement perpendicular to the undisturbed surface of the lake. That is all the information given.
1) How much time does it take for one complete wave pattern to go past a fisherman in a boat at anchor?
2) What horizontal distance does the wave crest travel in that time?
3) What is the wave number?
4) What is the number of waves per second that pass the fisherman?
5) How fast does a wave crest travel past the fisherman?
6) What is the maximum speed of his cork floater as the wave causes it to bob up and down?
...
(a) If the pitch of sound is increased, what are the changes in the frequency?
Frequency will remain the same.
Frequency will decrease.
Frequency will increase.
(b) If the pitch of sound is increased, what are the changes in the wavelength?
Wavelength will remain the same.
Wavelength will decrease.
Wavelength will increase.
(c) If the pitch of sound is increased, what are the changes in the wave velocity?
Wave velocity will increase.
Wave velocity will decrease.
Wave velocity will remain the same.
(d) If the pitch of sound is increased, what are the changes in the amplitude of the wave?
Amplitude will decrease.
Amplitude will remain the same.
Amplitude will increase.
...
If two same sound waves are in phase and , therefore, the two add up to a sound wave with amplitude two times of each single wave, then the intensity can be caulculated from
"Intensity =(pressure amplitude of the single wave X 2)^2/2vp."
Another way to get the intensity for the situation is add up the two single waves' intensities up by using the equation 2 X (pressure amplitude of single wave)^2/2vp. See the result! The former calculation gives 2 times of the value of the result of the later one. What mistake have i made in my understanding of the problem. Which way is right? Best answer will be given to the person who tells me which part i made mistake.
The wave source are generated about at the same position, so they are in phase in both space and time.
...
A water wave traveling in a straight line on a lake is described by the equation:
y(x,t) = (3.75)cos(x/0.450cm + t/5.40s)
where y is the displacement perpendicular to the undisturbed surface of the lake. That is all the information given.
1) How much time does it take for one complete wave pattern to go past a fisherman in a boat at anchor?
2) What horizontal distance does the wave crest travel in that time?
3) What is the wave number?
4) What is the number of waves per second that pass the fisherman?
5) How fast does a wave crest travel past the fisherman?
6) What is the maximum speed of his cork floater as the wave causes it to bob up and down?
...
Okay, so in my science class, we're studying waves.
Ex. Mechanical waves, electromagnetic waves, transverse waves, etc...
My group conducted experiments with a slinky (did I spell that correctly?) and we're suppose to demonstrate amplitude, compression, and constructive interference.
What type of wave is it when the slinky slides up and down along the floor? Sine wave, cosine wave, or does it depend on the way we move it?
I know that cosine waves start off with the crest at the y-axis, but I'm not quite sure of it in the real world.... Can't really explain how I don't understand xD!
And this is just something that came up on my interest, but how do I find the amplitude of the following?
y = sin x + 2sin 2x
y = sin 3x + cos 4x
y = cos 6x + cos x
Do I have to use identities?
Thanks.
...
What are the effects of using an inverter with a modified sine wave output to power devices that were designed to be powered with a pure sine wave?
What kind of devices are adversely affected by modified sine wave power, and what exactly are the effects.
It seems that the modified sine wave power could still properly be Pulse Width Modulated using SCRs, as long as the duty cycle is changed to produce the same effective power.
What effect does the modified sine wave have on single phase AC motors? It makes sense that more heat would be generated in the motor due to third harmonics, but I assume "brushless DC motors" don't use a pure sine wave either.
What about switching power supplies?
Cordless drill battery chargers?
Pure sine wave inverters are more expensive and less efficient than the modified sine wave inverters. Where does a true sine wave really become an advantage.
...
So many good big wave riders but who is the best!? You got the likes of Laird Hamilton, Eddy Aikau, Derek Ho, Occy, Sunny Garcia. Makua Rothman, Bruce Irons, Mark Foo, Pancho Sullivan, Ross Clarke-Jones. I could go on and on. Plus you got Mike Stewart who also rides big waves but of course thats bodyboarding. Kainoa Mcgee also a bodyboarder drop knee a 20 foot wave at Maui Jaws on the island of Maui. Choose a big wave surfer or big wave bodyboarder don't matter just you pick who is the best big wave rider. My personal pick is Bruce Irons. I have never seen anybody surf Waimea better than Bruce. So your pick and why you think this person is the best.
...







































