Questions Asked on
March 22, 2008

Physics
Why is Young's experiment more effective with slits than with the pinholes he first used?
asked by Emily 
physics!
A stretched rubber band has a length of 0.10m and a fundamental frequency of 440Hz. What is the speed at which waves travel on the rubber band? I need some ideas to do this problem. Thanks!
asked by Jacquelin 
geometry
How do you find the surface area of rectangular prisms and cylinders??????
asked by Austin 
physics!!!
A small spherical insulator of mass 8.00*10^2kg and charge +6.00*10^7C is hung by a thin wire of negligible mass. A charge of 9.00*10^7C is held 0.450m away from the sphere and directly to the right of it, so the wire makes an angle with the vertical.
asked by Donna 
chemistry
1)calculate the pressure, expressed in pascals, that the brick exerting a force of 18N, and dimensions od 9.3cm x 5.5 cm. I know that Pressure = force divided by the area. the answer I got was 0.4Pa. Is this correct? 2) why is an ax more useful to use (in
asked by Jonathan T 
english: please hel.
This is the article: Controlling Irrational Fears After 9/11* We present this selection as an example of a fairly wellreasoned argumentative essay. There is more here than arguments—there’s some window dressing and you’ll probably find some slanters
asked by rose 
ap physics
I need some help with the following problems. I got no idea how to do it...PLEASE HELP!!!!THANKS A LOT!! A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He
asked by Zoe 
Chemistry
an air bubble trapped in bread dough at room temperature (291k) has a volume of 1.0mL. The bread bake sin the oven at 623k(350C) calculate the new volume of the air bubblr, using charles law( Volume divided by Temperature= K) my answer is: 1.0/350C =
asked by Jonathan T 
physics
The A string on a string bass is turned to vibrate at a fundamental frequency of 55.0Hz. If the tension in the string were increased by a factor of four, what would be the new fundamental frequency? I need some guides to do it. Thx.
asked by Mirenda 
English Expressions
1. She has a ponytail. 2. She has pigtails. 3. She has braids. 4. She has long curved hair. 5. She has short wavy hair. 6. He has medioumlength straight hair. 7. He has averagelength curved blond hair.  Are the expressions above
asked by John 
chemistry
In planning to administer a gaseous anesthetic to a patient, A) why mus the anthesiologist take into account the fact that during surgery the gaseous anesthetic is used both at room temperature (18C) and at the patients body temperature (37C)? B) What
asked by Jonathan T 
English Expressions
Let's play the bingo game. Look at the big bingo board. There are expressions in each box on the bingo board. There are nine sentences in theboxes. You should write the sentences again with contractions in the boxes on the smaller bingo board randomly.
asked by John 
PHYSICS!!!HELP！！
An aircraft carrier has a speed of 13.0m/s relative to the water. A jet is catapulted from the deck and has a speed of 67.0m/s relative to the water. The engines produce a 1550Hz whine, and the speed of sound is 343m/s. What is the frequency of the sound
asked by Stephy 
English Expressions
Will you check the following English sentences? 1. Paying attention to the intonation mark, listen carefully. (Do I have to use 'mark'?) 2. Put your tongue between your upper teeth and lower teeth, and say th by letting the air over your tongue abruptly.
asked by John 
chemistry
a 3.0L helium balloon is placed in a car sitting in hot sunlight. The temperature in the mall, when the balloon was bought, was 22C. The temperature in the car is 45C. what will be the new volume of the of the balloon. Will it be: 6.14L? I would think this
asked by Jonathan T 
Govt. accounting
The following information relates to Dell City, whose first fiscal year ended December 31, 2006. Assume Dell has only the longterm debt specified in the information and only the funds necessitated by the information. 1. General fund: • The following
asked by sonia 
science
What are some freshwater invertebrates?
asked by Mel 
Math(Easy Survey Please Help)
I need 75 of these surveys filled out to do a regression analysis for Economics. Just answer the 10 easy questions for me please. 1. Do you exercise or work out on a regular basis? 2. Are you male or female? 3. Do you smoke? 4. How many carbonated soft
asked by Jake 
engglish revised
In the first argument, the writer is trying to establish a plausible argument on catastrophic events, such as the 911 attacks on the World Trade Center, and how we as Americans are more susceptible to react with rage, when an event of this magnitude hits
asked by rose 
COM 215
The trip schecduled for Mexico during spring break has been cancelled due to the bankruptcy of the bus company. You must tell 25 of your classmates that the trip has been cancelled and that they have lost their $100 deposit. How will you convey the
asked by Jailyn 
GeogAdiabatic rates
Given a lapse rate of 3 degrees C/1000 meters and a temp of 20 degrees C at 0 meters: A.What is the air sitting at 3,000 meters elevation?___degrees C B.If a sample of air were lifted from 0 meters to 3,000 meters elevation, what would its new temp
asked by Sarah 
Algebra
Solve the equation identify as an identity, an inconsistent equation or a conditional. My equation is 13/2x+7/4 I know the answer is Conditional {2}, but I cannot figure out how to get it or even where to start.
asked by Tim 
Health
If a six year old boy is noticeable taller than his classmates(He is 5 feet, 7 inches tall) what gland problem may he have? I think it's Dysfuntion of the throid gland Thanks for your help
asked by KaleighAnne 
7th grade health
PLease see if I am right When you do a push up from the floor what kind of movement describes the motion of your elbow flexion
asked by Kathy 
algebra
If y=7.2 when x=10, what is the value of x when y=20?
asked by michael 
Logarithms
Hi, Can anyone tell me if the following are correct please: If x = 10y (where x > 0), then log10 x = y if a and b are positive numbers, then, 2 log 10 a / b = 2log 10 a  2 log 10 b and lastly if a and b are positive numbers, then, log 10 ( a+b ) = 10 log
asked by leo 
englishfinal revision
Thanks a lot Ms. Sue. Have a great easter. Rose
asked by rose 
Algebra
I am confused about how to graph two numbers on the same line. I need to graph: x/+ 4 both on the same line I have: 6 5 [4 3 2] 1 0 1 2 solid line I am not sure if I have the right [ or if I need a ( and if I need a solid line.
asked by Suzy 
Biology
I need help on classifying different species into Kingdom, Phylum, Class, Order, Family, Genus, and Species. We need to do around 42. Thanks.
asked by Emily 
French
One more question please. It sais: "nous avons besoin DES nombres pour le commerce" and then a bit later on: "nous avons besoin DE nombres pour désigner les dates...." Why once DES and the DE ?? Is it because "le commerce" is a noun and "désigner" a
asked by no name 
Maths
solve for r r^641 = 2.5x10^7 (r1) any ideas?
asked by Mikal 
computers
digital logic design ( i have a lot questios so please help me) Proof that: A¡¦.B + B¡¦.C¡¦ + A.B + B¡¦.C = 1 Q3 [2 points], According to DeMorgan theorem, the complement of W . X + Y . Z is W¡¦ + X¡¦ . Y¡¦ + Z¡¦ Yet both functions are 1
asked by snfor 
Religion
What is some History Of the Presbyterian Church
asked by Attivia 
Frenchhow to make accents
What are the keyboard shortcuts for typing French accents? thanks
asked by Anonymous 
English
What is author style?
asked by Anonymous 
Algebra
find the slope of the line a lineperpendicular to 4x+4y=2 answer is the slope of the line is 1.
asked by Jen 
Physics
Which will give widerspaced fringes in a doubleslit experiment, red light or violet light?
asked by Emily 
Physics
If the pathlength difference between two identical and coherent beams is two wavelengths when they arrive on a screen, will they produce a dark or a bright spot?
asked by Emily 
algebra
If x is inversely proportional to y, and x=60 when y=0.5, find x when y =12
asked by michael 
12 Biology! URGENT!
Is this right: Place numbers beside the statement below to indicate the order of events occurring in the light reactions: 3 low energy electrons at PSI are reenergized by a photon of light 5 electrons energized at PSII jump to a higher lever, as they fall
asked by Photosynthesis 
Physical Science
A friend tell you that a refrigerator door beneath it's layer of white painted plastic, is made of aluminum. How could you check to see if this is true withoutscraping away the plastic?
asked by Rachel 
12 Biology! URGENT!
Is this right: Place numbers beside the statement below to indicate the order of events occurring in the light reactions: 3 low energy electrons at PSI are reenergized by a photon of light 5 electrons energized at PSII jump to a higher lever, as they fall
asked by Photosynthesis 
7th grade health
When you swallow a peanut, the peanut first comes in contact with the what ? I am not sure can you please let me know of any web sites that may help thanks
asked by Kathy 
Science 8th grade
Please check my answer thanks Which of the folowing process is achieved through osmosis ? A. A cube of sugar didilving in coffee B. Particles of oxygen filling the lungs C. Water moving across thr cell membranne D. Transport of proteins from the
asked by Alley 
Science 8th grade check answer
The cellular process involves mitosis is fertilization ? True or False I picked True
asked by Alley 
Health
The constituents of DNA are what ? Sugars and lipids am I right ?
asked by Sue 
Algebra
Can someone tell me how to find a perpendicular line 3x+5y=7 My choices are 7/5 3/5 5/3 7/5 I cannot figure this out
asked by Anne 
Algebra
Find the equation of the line in stardard form (5,1) and (5,7) I can get it to 7=8/5(5)+b 7=8+b b=1 but I can not figure it our from here answer 8x5y=30
asked by Sarah 
Science
The question I have is based on air having a density of 0.0013(g/mL). What is the mass of 550mL of air? How do I use the formula Density = mass/volume to solve this problem?
asked by Sierra 
biology
this right: Place numbers beside the statement below to indicate the order of events occurring in the light reactions: 3 low energy electrons at PSI are reenergized by a photon of light 5 electrons energized at PSII jump to a higher lever, as they fall
asked by I NEED Biology help 
Algebra And Trigonometry
After finding the values by using half angle formula, how to determined the quadrant
asked by Nicole 
computers
(Digital logic) using truth table Demonstrate that: X’. Y + Y’. Z + X.Z’ = X.Y’ + Y.Z’ + X’.Z
asked by snfor 
Math
What is 21 S on a D
asked by Thomas 
math
what is 15 R on a S T
asked by Thomas 
Reading
What are some essential questions that you would include in a discussion about a book?
asked by Anonymous 
InDesign
True or False? Text used in InDesign must be created in InDesign.
asked by Anonymous 
English
What are basic literary elements?
asked by Anonymous 
7th grade health
Where could i find the correct order of how sound waves or sent to the brain ? thanks
asked by Kathy 
Physics
In our everyday environment, diffraction is much more evident for sound waves than for light waves. Why is this so?
asked by Emily 
Physics
By how much shoould a pair of light rays from a common source differ in length to produce destructive interference?
asked by Emily 
Algebra
The first two terms of a geometric sequence are a1=1/3 and a2=1/6. What is a8, the eighth term?
asked by michael 
englishrevised
what to you suggest for those words.
asked by rose 
english final revision
In the first argument, the writer is trying to establish a plausible argument on catastrophic events, such as the 911 attacks on the World Trade Center, and how we as Americans are more susceptible to react with rage, when an event of this magnitude hits
asked by rose 
Physics
Is getting shot considered to be an elastic or inelastic collision if blood shoots out everywhere?
asked by Jess 
Religion
Are there church websites where I can download a lot of wmv or avi sermon files with ease? If you know them, would you let me know?
asked by John 
Health Adminstration
As a case manager what moral responsibilities would you have as a health in the field?
asked by Me 
Math
Please help Which of the following numbers are integers 2/3, 35, 0.093, 650, 42.5 Determine the maximum and minimum values of the following set of numbers 3. 36/7, 1, 2/3, 5/4, 5, 26/9
asked by Sonya 
Science 8th grade
A cell digests proteins through a ___________ process? Where I can I get some information on this thanks
asked by Alley 
Health
Normal urine is____________ as indicated bt it's ph value I think it is slightly alkaline please check my answer thanks
asked by Sue 
Algebra
Solve the equation identify as an identity, an inconsistent equation or a conditional I know the answer is Conditional {2}, but I cannot figure out how to get it or even where to start.
asked by Tim 
history
Discuss the transformation from agriculture to industrial of United States from 1865 1940
asked by Anonymous 
Speech
Where can I find newspaper or magazine articles on the pet population problem?
asked by Jules 
literary
the point of our highest interest and greatest emotional involvement in a narrative
asked by kristin 
math
How do I find the k,c,V.S., and P.S. when I have a chart of monthly temps for a year?
asked by Heaven 
Science
Explain the four factors that produce changes in population size. Which factors are affecting the population size? What do you predict will happen to the nutria populatin after all the land is depleted of the nutris'a food resources?
asked by Anonymous 
Math
How do you round these numbers to the nearest tenth 84,96,71
asked by Amal