Friday

April 18, 2014

April 18, 2014

Number of results: 3,236

**Geometric & Wave Optics**

see other.
*Wednesday, July 22, 2009 at 3:03pm by bobpursley*

**Geometric & Wave Optics**

Use Snells Law. We will be happy to critique your work.
*Tuesday, July 21, 2009 at 3:40pm by bobpursley*

**Geometric & Wave Optics Correction**

No. 1/10+1/6=1/f .1+.16666= .26666=1/f f=1/.26666=?
*Wednesday, July 22, 2009 at 3:04pm by bobpursley*

**Geometric & Wave Optics**

1. An object,30mm high ,is 90mm from a convex lens. The focal length is 60mm det the positive height an nature of the image. Draw an accurate diagram for the formation of the image. 2.calculate its magnification?
*Friday, July 24, 2009 at 12:06pm by Anonymous*

**Geometric & Wave Optics**

An astronomical telescope consists an objective of focal lenght 100cm and an eyepiece of focal lenght 8cm. calculate the angular magnification of the telescope and also determine the distance between the two lenses.
*Friday, July 24, 2009 at 12:06pm by Matrix School 1*

**Geometric & Wave Optics**

A beam of light wavelenght 560 to availing in air is incident on a surface of a transparent material. The incident beam makes an angle of 65degree with the normal and the refracted beam makes an angle of 45degree with the normal. calculate the refractive index of the material.
*Tuesday, July 21, 2009 at 3:40pm by Matrix School 2*

**Physics**

What do u mean by phase in wave optics??
*Friday, June 15, 2012 at 1:50pm by Abhi*

**Science**

1. Compare the two light waves above. Which wave would produce the brightest light and which wave would have the least energy? (1 point) a. wave A; wave A b. wave A; wave B c. wave B; wave A d. wave B; wave B Is it C?
*Wednesday, March 5, 2014 at 1:39pm by Ashley*

**optics**

I want to substitude the ray optics analysis with what are the resultant waves that happen. I say "resultant" because many waves that would exist if they were alone, as they are not alone, after their superposition with the other waves become some resultant waves which are not...
*Friday, May 13, 2011 at 2:54pm by Theodore*

**optics**

I think you are missing the point. First of all, consider Huygens' principle: Here it is as differential equations: http://www.mathpages.com/home/kmath242/kmath242.htm The entire principle says that each point of any wave is a wave front for a new wave. Ray diagrams just draw ...
*Friday, May 13, 2011 at 2:54pm by bobpursley*

**Physics**

Are sure you don't mean the "wave packet" theory of matter? A particle can be represented as a Gaussian "wave packet" that spreads with time, increasing the position uncertainty at future times. Narrowing the packet width (for position accuracy) increases the spread rate, in ...
*Friday, May 29, 2009 at 3:42am by drwls*

**Geometric & Wave Optics**

when an object is placed 10cm away from a lens; it is found that the formed is 6cm behind the object on the same side of the lens. Determine the focal lenght of the lens. solution 1/v + 1/u = 1/f u=10cm, v=6cm, f=? 6+10/60 = 1/f 70/60 = 1/f by cross multiply we have 70 x f = ...
*Wednesday, July 22, 2009 at 3:03pm by Matrix School 2*

**Geometric & Wave Optics Correction**

when an object is placed 10cm away from a lens; it is found that the formed is 6cm behind the object on the same side of the lens. Determine the focal lenght of the lens. solution 1/v + 1/u = 1/f u=10cm, v=6cm, f=? 6+10/60 = 1/f 70/60 = 1/f by cross multiply we have 70 x f = ...
*Wednesday, July 22, 2009 at 3:04pm by Matrix School 2*

**Science**

Which type of seismic wave causes rock particles to move in the same direction as the wave movement? a. P-wave b. S-wave c. tension wave d. shear wave
*Tuesday, March 10, 2009 at 8:11pm by Angie*

**laser optics**

The laws of laser optics are the same as they are for "regular" optics, but there is a special emphasis on advanced topics that only become important with lasers, such as: (1) coherent optical phenomena, such as "speckle" (2) nonlinear optics (frequency doubling and shifting, ...
*Saturday, May 31, 2008 at 8:15am by drwls*

**physics**

A wave on a string has a wave function given by y(x, t) = (0.0210 m)sin[(6.91 m^−1)x + (2.38 s^−1)t . (a) What is the amplitude of the wave? (b) What is the period of the wave? (c) What is the wavelength of the wave? (d) What is the speed of the wave?
*Thursday, July 19, 2012 at 9:30pm by lanre*

**physics**

show that 1/sqrt(Msubscript 0 Esubscript 0)=C...I dont understand how to show this or what this question is asking..its for wave optics
*Tuesday, April 29, 2008 at 10:47pm by Jessica*

**Geometric & Wave Optics**

For astronomical telescopes, the objects are at infinity, so parallel rays reach the objective. The eye-piece is therefore placed at a distance from the objective equal to the focal length. At this location, the magnification is equal to the quotient of the focal lengths. ...
*Friday, July 24, 2009 at 12:06pm by MathMate*

**Physics**

Subject: Light and Geometric Optics Question: Where must a light source be placed in front of a concave mirror for a) light energy to be concentrated to a single point b)the light to be reflected in a parallel beam?
*Saturday, May 22, 2010 at 4:29pm by Emily*

**chemistry**

Is this an electromagnetic wave, a water wave, or some other kind of wave? I assume you mean it is an EM wave. E = hc/wavelength
*Monday, November 22, 2010 at 6:04pm by DrBob222*

**Physical science**

A wave travels along a string at a speed of 1,5m 1s.if the frequency of the source of the wave is 7,5hz,calculate:(a)the wavelength of the wave..(b)the period of the wave
*Wednesday, April 18, 2012 at 2:52pm by Brydley*

**Physics**

Two waves are combined to form this standing wave equation of y(x,t) = (3 mm)sin[x/(2 m]cos[(100 rad/s)t] a. What's the amplitude of the right moving wave and left moving wave? b. What's the wavelength of the right moving wave and left moving wave? c. What's the velocity of ...
*Friday, February 11, 2011 at 12:27am by Dan*

**Physics**

Two waves are combined to form this standing wave equation of y(x,t) = (3 mm)sin[x/(2 m]cos[(100 rad/s)t] a. What's the amplitude of the right moving wave and left moving wave? b. What's the wavelength of the right moving wave and left moving wave? c. What's the velocity of ...
*Friday, February 11, 2011 at 6:00pm by Alan*

**Physics**

The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m. 2) What is the wavelength of the wave? 3)What is the frequency of the wave?
*Tuesday, November 23, 2010 at 12:46am by Patrick*

**Physics**

The following wave function represents a travelling wave: y = 5.35 / [4.95 + (6.55x+2.15 t )2] where y and x are in cm, and t is in seconds.a) What is the maximum displacement of the wave at t = 4.30 s ? b)What is the wave velocity?
*Tuesday, January 11, 2011 at 11:58am by Rody*

**laser optics**

what is laser optics, how laser optics work?
*Saturday, May 31, 2008 at 8:15am by serdar*

**Science**

When a sound wave passes from air into a solid object, which of the following wave properties change? -frequency -wave speed -amplitude -wave length Can be more than one
*Thursday, November 10, 2011 at 7:17pm by Logan*

**Science**

P: If wave a has an amplitude of 3 meters then inteferes wiht wave b that has an amplitude of 2 meters. the sum of te waves produce wave c with 5 meters Q:what is the wave interaction explain? P<S: I really want to know what are the 4 basic types of wave interections. Thank...
*Sunday, October 3, 2010 at 1:30pm by Jacytiopa*

**physics**

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds. a). What is the maximum displacement of the wave at t = 7.50 s ? b). what is the wave velocity? please explain more
*Monday, January 10, 2011 at 12:34am by mike *

**physics**

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds. a). What is the maximum displacement of the wave at t = 7.50 s ? b). what is the wave velocity? please explain more
*Monday, January 10, 2011 at 12:34am by mike *

**optics ray tracing**

Drawing straight lines that only change direction at mirror and lens surfaces makes solving optics with ray-tracing a lot easier.
*Sunday, March 21, 2010 at 1:26am by drwls*

**Geology**

I am totally confused, need to come up with the Arrival Time of P Wave, S Wave Love Wave and Rayleigh Wave and distance from epicenter for LA and Austin when I am only supplied with the following info for Urbana: 3400 miles from Epicenter P Wave arrive 05:44:00 S wave arrive ...
*Monday, June 27, 2011 at 10:59am by Carlene*

**physics**

The figure below represents a periodic wave. Each increment on the equilibrium line is 760 cm. What is the wavelength for this wave (in m)?If the wave in the figure above has a frequency of 60 Hz, what is the wave's speed?
*Monday, May 2, 2011 at 8:38pm by Joan*

**Physics HELP!!**

The wave is travelling to the right at 18.2m/s. What is the amplitude if the maximum displacement is 19.9cm and the total distance travelled by the wave is 41.2m? b) What is the wavelength of the wave? c).What is the frequency of the wave?
*Saturday, November 24, 2012 at 1:55pm by joane *

**algebra**

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 4, 8, 16, 32, . . . A.arithmetic, 64, 128, 256 B.geometric, 64, 128, 256 C.geometric, 48, 64, 80 .DThe sequence is neither geometric nor arithmetic. I think it's B...? 81, 27, 9, 3...
*Tuesday, March 19, 2013 at 10:41am by Cassie*

**OPTICS**

A real object is placed 25cm in front of a thin meniscus lens with a Power of +8.25 and index of refraction of 1.50. What is the radius of curvature of the back surface of the lens to which an image is formed 50cm away? I HAVE NO IDEA WHERE TO EVEN BEGIN?
*Friday, January 17, 2014 at 1:33pm by optics*

**Geo. & Wave Optics**

An astronomical telescope consists an objective of focal lenght 100cm and an eyepiece of focal lenght 8cm. calculate the angular magnification of the telescope and also determine the distance between the two lenses.
*Thursday, July 23, 2009 at 2:37pm by Matrix School 2*

**science**

A bird sits on a pole and watches waves. The wave crests are 1.0 meter apart. If one wave crest passes the pole each second, what is the speed of the wave? . What is the period of the wave? . What is the frequency of the wave? . If the waves change so that the distance between...
*Sunday, February 6, 2011 at 5:15pm by mary*

**Science**

P: If wave a has an amplitude of 3 meters then inteferes wiht wave b that has an amplitude of 2 meters. the sum of te waves produce wave c with 5 meters Q:what is the wave interaction explain? Also m,ay you explain what destructive inteference is and constructive interference...
*Sunday, October 3, 2010 at 1:54pm by Jacytiopa*

**physical science**

A disturbance sends ripples across water in a tub. These ripples are an example of a? rarefaction longitude wave compression surface wave (my choice) Sound is an example of what kind of wave? transverse wave longitude wave surface wave wavelength (my choice) Waves carry -- ...
*Thursday, April 12, 2012 at 8:22pm by kevin*

**Physics**

A surfer is catching a wave. Suppose she starts at the top of the wave with a speed of 1.3 m/s and moves down the wave until her speed increases to 8.0 m/s. The drop in her vertical height is 2.8 m. If her mass is 59 kg, how much work is done by the (nonconservative) force of ...
*Monday, October 15, 2012 at 3:26pm by Sam*

**science**

two waves are traveling through the a container ofnitrogen . the amplitude of the first wave is .3 cm and the amplitude of the second wave is .9 cm. what is true about the two waves? a. the energy of the first wave is less than the second wave. b. the energy of the first wave ...
*Saturday, March 16, 2013 at 11:47pm by mary*

**Precalc/Trig**

wave is modeled by the function ... h(t) = 3cos(p/10)*t What is the period of the wave (T) *frequency (F) is defined as the number of cycles of the motion per second. What is the relationship between F and T? Find the wave height (H) which is the vertical distance between the ...
*Wednesday, September 26, 2012 at 9:17am by George*

**science**

kinetic energy of a wave is 1/2mw^2 a^2 where a is amplitude of wave the wave having more k.e is stonger one!!! in our case, wave wid amplitude 9cm is stronger one.
*Saturday, July 24, 2010 at 10:51pm by manoj*

**science**

kinetic energy of a wave is 1/2mw^2 a^2 where ais amplitude of wave the wave having more k.e is stonger one!!! in our case, wave wid amplitude 9cm is stronger one.
*Saturday, July 24, 2010 at 10:51pm by manoj*

**physics**

A plane progressive wave is represented by the wave equation: y=0.1sin(200 št-20šx/17) Where y is in millimetres, t is in seconds, and x is the distance from a fixed origin, O, in metres. Find: The frequency of the wave The wavelength of the wave The speed of the wave ...
*Saturday, May 11, 2013 at 10:06pm by rare*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Monday, October 24, 2011 at 6:13pm by maria*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Monday, October 24, 2011 at 4:44pm by maria*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Monday, October 24, 2011 at 6:09pm by maria*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Monday, October 24, 2011 at 8:02pm by maria*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Tuesday, October 25, 2011 at 5:25am by maria*

**Physics HELP!!**

A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 18.2m/s. What is the amplitude if the maximum displacement is 19.9cm and the total distance travelled by the wave is 41.2m? b). What is the wavelength of the wave?
*Saturday, November 24, 2012 at 2:44pm by joane *

**science**

why is the arrival time for the p-wave always earlier than the arrival of the s-wave the same seismograph station? is it because the p wave always reaches before the s- wave.
*Monday, January 19, 2009 at 2:03pm by Anonymous*

**university**

A surfer is catching a wave. Suppose she starts at the top of a wave with a speed of 1.37 m/s and moves down the wave until her speed increases to 9.90 m/s. The drop in her vertical height is 2.64 m. If her mass is 63.3 kg, how much work is done by the (nonconservative) force ...
*Tuesday, November 22, 2011 at 10:46pm by nelson*

**Math**

Which represents the type of sequence: 12, 22, 30, 36, 41,
? neither arithmetic nor geometric both arithmetic and geometric arithmetic geometric
*Saturday, March 10, 2012 at 1:11am by Brett *

**physics**

An ocean wave has a length of 12.0 m. A wave passes a fixed location every 2.0 s. What is the speed of the wave?
*Friday, February 1, 2013 at 3:29pm by noah*

**physics please helpp **

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t = 0.175 s. ? b)... the ...
*Monday, October 24, 2011 at 7:07pm by maria*

**Physics**

Two nearby nodes of a standing wave are separated by 4.5 m. If the frequency of the wave is 184 Hz, what is the speed of the wave?
*Monday, November 14, 2011 at 12:04am by Anon*

**Physics !>:(**

A wave has angular frequency 46.2rad/s and wavelength 3.57m. What is its wave number? b).What is its wave speed?
*Saturday, November 24, 2012 at 1:18pm by joane *

**College Physics**

A radio station with a power of 20 kW sends out an omnidirectional wave at 1.25 MHz. a. If the electromagnetic wave has an electric field of 0.22 V/m, what is the magnetic field amplitude? b. What is the intensity of the wave at 5 km? c. What is the wavelength of the ...
*Wednesday, April 4, 2012 at 9:25pm by charlie*

**physics**

That is according to the wave theory. The question is why.... Refraction happens when a wave enters a new medium with a different wave density.
*Wednesday, April 23, 2008 at 3:39pm by bobpursley*

**PHYSICS **

A wave on a string is described by the relation y = A sin(30t - 0.041x), where t is measured in seconds and x in meters, with A = 0.16 m. (a)Find the frequency of the wave. ____Hz (b)Find the wavelength of the wave. ___m (c)Find the speed of the wave. ___m/s
*Wednesday, December 5, 2012 at 8:43pm by Aaron*

**Physics**

A traveling wave has displacement D(x,t)=(3.00cm)sin(5.36x-6.71t), where x is in meters and t is in seconds. What is the wave speed of this wave? **snapshot graph at t=1/4 s
*Wednesday, November 21, 2012 at 11:44am by rory*

**physics**

An ocean wave travels 17.1 m in 6.7 s. The distance between the two nearest wave crests is 5.1 m. What is the frequency of the wave? Answer in units of H
*Monday, March 4, 2013 at 6:33pm by hannah *

**science- physics**

when a wave strikes a boundary that is less dense than the original wave medium, the wave comes back a) upright b)inverted thank you!
*Tuesday, February 11, 2014 at 9:25pm by lauren*

**physics**

A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 32.0 m/s. a) What is the amplitude if the maximum displacement is 28.0 cm and the total distance travelled by the wave is 26.0 m? b)What is the wavelength of the wave? c)What is the ...
*Friday, November 21, 2008 at 9:23pm by Anonymous*

**Please help check physical science!**

Please help check my answers I really want to make a 100%! 1. A mechanical wave moves through a medium, which can be (1 point) A. a liquid. B. a solid. C. a gas. D. all of the above <-- This one 2. Which type of kind of wave causes the medium to vibrate only in a direction ...
*Wednesday, March 6, 2013 at 10:26pm by Matthew*

**Intergarted Science**

I had a couple of questions on the topic of Waves-Sound and Light. 1. What is the source of all waves? *Vibration* 2. In one word, what is it that moves from source to receiver in a wave motion? *Energy* 3. Does the medium in which a wave travels move with the wave? *No* 4. ...
*Thursday, January 7, 2010 at 7:27pm by Jordan*

**physics**

A wave travels at 575 m/sec in a dense media. The wave is observed to The length of the media is 95.8 cm. When the wave is reflected at the end, its phase is reversed (an upward motion becomes a downward motion.) What is the frequency of the resonant wave in this media?
*Wednesday, February 19, 2014 at 7:19pm by Ann*

**Physics**

It is not inteference. It has to do with momentum and wave speed. As the depth gets shallower, the slower wave speed at the bottom (friction) allows the top of the wave to get ahead, and momentum carries it over and it falls ahead of the wave.
*Friday, February 29, 2008 at 1:42pm by bobpursley*

**Waves-Science**

I had a couple of questions on the topic of Waves-Sound and Light. 1. What is the source of all waves? *Vibration* 2. In one word, what is it that moves from source to receiver in a wave motion? *Energy* 3. Does the medium in which a wave travels move with the wave? *No* 4. ...
*Thursday, January 7, 2010 at 8:46pm by Jordan*

**Physics**

1) The amplitude is the maximum displacement 2) I do not understand what is meant by "the total distance traveled by the wave" The wave keeps on traveling and does not stop. They must be referring to the length of one wave, which would be the wavelength. In that case it is 16....
*Tuesday, November 23, 2010 at 12:46am by drwls*

**Physical Science**

1.Nico uses wire to connect a battery, light bulb, and a switch, but the light bulb doesn't light up. What might explain this problem? A.The circuit is closed B.The wires are bent C.The battery has too much power D.The switch is open. B? 2.What type of wave doesn't require a ...
*Friday, May 22, 2009 at 5:18pm by mysterychicken*

**physics**

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds.a) What is the maximum displacement of the wave at t = 7.50 s ? b) what is the velocity.
*Monday, January 10, 2011 at 12:34am by mike *

**physics**

A wave traveling in the + x direction has an amplitude of 0.35 m, a speed of 5.2 m/s, and a frequency of 14 Hz. Determine: 3.1.the wavelength, (2) 3.2.the wave number, (2) 3.3the angular velocity, (2) 3.4. the equation of the wave
*Thursday, February 16, 2012 at 7:42pm by joe*

**Physics**

A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0; the darker line represents the shape of the cord at time t = 0.10 s. (Note that the horizontal and vertical scales are different.) (a) What is the ...
*Tuesday, April 17, 2012 at 5:52pm by Amy*

**Physics-please**

When a sound wave passes from air into a solid object, which of the following wave properties change? -Frequency -Wave Speed -Amplitude -Wavelength all that apply
*Thursday, November 10, 2011 at 7:41pm by Logan*

**Physics**

A rock dropped into a pond produces a wave that takes 14.6 s to reach the opposite shore,21.1 m away. The distance between consecutive crests of the wave is 5.3 m. What is the frequency of the wave?
*Tuesday, December 4, 2012 at 9:28pm by Priscilla*

**High School Science**

Here is a site with a simulator. You can try it yourself. http://interactagram.com/physics/optics/refraction/
*Saturday, March 20, 2010 at 6:52pm by DrBob222*

**physic**

You are given two waves, a transverse wave that moves to the right f1(x) and a transverse wave that moves to the left f2(x), on a string. As the problem begins, the wave f1(x) is moving to the right at v1 = +1 m/s and the wave f2(x) is moving to the left at v2 = -1m/s. what is...
*Tuesday, March 22, 2011 at 8:52am by rama*

**physics**

A wave travels a distance of 20m in 3s. The distance btw successive crests of the wave is 4cm. What is the frequency of the wave?
*Wednesday, January 29, 2014 at 8:21am by bisi*

**Wave**

What feature is NOT defined for a wave pulse? a)period b)wave speed c)the position of a particle at a certain time d)a defined source
*Saturday, February 8, 2014 at 6:19pm by John*

**Math**

The speed of an ocean wave is measured by an oceanographer.the wave travels 30 meters in 10 seconds. How many meters will the wave travel in 2 minutes
*Friday, January 31, 2014 at 6:56am by Anonymous*

**general science**

2 waves are traveling through a container of nitrogen gas. Amplitude of the first wave is 0.3 cm, and the second 0.9 cm. What is true about the two waves? a. the energy of thee first wave is less than the second b. energy of the first wave is greater c. speed of the first wave...
*Friday, February 26, 2010 at 12:01pm by Mike*

**Physics**

The period of longitudinal sinusoidal wave is 0.16 seconds and its wavelength is 8.0 meters. Calculate the wave's speed, frequency, angular frequency and wave number.
*Friday, January 18, 2013 at 11:19am by Sean*

**physics**

A wave with an amplitude of 1.94 m interferes with a second wave with an amplitude of 0.85 m. What is the largest resulting wave that could occur if these two waves destructively interfere?
*Tuesday, April 9, 2013 at 10:05pm by Anonymous*

**sciene 8 grade**

They are connected by wave speed... This is called the wave equation: frequency*wavelength= wave speed
*Wednesday, January 21, 2009 at 9:46am by bobpursley*

**economics**

Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her hand from the rest position back and forth along the floor 20 times in 4 seconds. Determine the following: Wavelenght of wave sally sue sent ...
*Thursday, April 22, 2010 at 11:32pm by CJ*

**physics**

Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her hand from the rest position back and forth along the floor 20 times in 4 seconds. Determine the following: Wavelenght of wave sally sue sent ...
*Thursday, April 22, 2010 at 11:34pm by CJ*

**physics**

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m .. if needs values of these ( the speed of the wave is 58.77 m/s) (the ...
*Tuesday, October 25, 2011 at 10:57am by maria*

**Physics**

A sinusoidal wave traveling on a string is moving in the positive x-direction. The wave has a wavelength of 8 m, a frequency of 60 Hz, and an amplitude of 9 cm. What is the wave function for this wave? (Use any variable or symbol stated above as necessary.) I think the ...
*Tuesday, July 17, 2012 at 4:13pm by Bruce*

**Physical Science**

An ultrasonic wave in water is a compression wave that travels at 1,400 m/s A) An ultrasonic wave from a ship travels to the bottom of a lake and back in 0.16s. How deep is it at this point? B) If an ultrasonic wave is emitted in the ocean where the ocean's depth is 3.5km, how...
*Sunday, March 2, 2014 at 2:31pm by Charles*

**Design **

Which design style encourages a complete manipulation of floral materials into unnatural geometric shapes and colors? A. Abstract B. New convention C. Ikebana D. New wave im thinking B
*Wednesday, January 16, 2013 at 6:58pm by Jamie *

**chemistry**

A traveling wave is produced on a rope. The wave travels until it hits a wall and it is reflected. If the speed of the wave is 1.8 m/s and it takes 3.3 s to get back to the starting point, how long (m) is the rope.
*Tuesday, July 5, 2011 at 11:59am by tina*

**PHY**

A traveling wave is produced on a rope. The wave travels until it hits a wall and it is reflected. If the speed of the wave is 1.8 m/s and it takes 3.3 s to get back to the starting point, how long (m) is the rope.
*Tuesday, July 5, 2011 at 1:04pm by Tim*

**PHYSICAL SCIECE**

A seismic wave has a velocity of 5000 m/s and a frequency of 4Hz. wht is the wavelength of this wave? if this was a light wave traveling in a vacuum with the same wavelength, what would be its period?
*Thursday, July 14, 2011 at 9:14pm by CARLOS*

**physics**

Identify the area of physics that is most relevant to each of the following situations. Explain your reasoning. a. a high school football game b. food preperation for the prom c. playing in the school band d. lightning in a thunderstorm e. wearing a pair of sunglasses outside ...
*Monday, August 21, 2006 at 11:30pm by Anonymous*

**Fiber Optics**

What is fiber optics?
*Sunday, September 23, 2012 at 1:39pm by Tialia*

**calculus**

It is not clear without sufficient parentheses what the expression really is. I assume it to be: Sum((-1)^n * (3/3^n)) for n=0 -> ∞ This is an alternating geometric series. (9/2) is the correct sum for the geometric series (non-alternating). Write out the first few ...
*Tuesday, September 7, 2010 at 8:10pm by MathMate*

**Physics**

A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?
*Monday, November 22, 2010 at 8:24pm by Bala*

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