Questions Asked on
August 8, 2012

physics
Two identical loudspeakers that are 5.00 m apart and face toward each other are driven in phase by the same oscillator at a frequency of 875 Hz. The speed of sound in the room is 344 m/s. If you start out standing midway between the speakers, find the
asked by collen 
6th grade math
Cameron is making bead necklaces. Hehas 90 green beads Nd 108 blue beads. what is the greatest number of identical necklace es he can make if he wants to use all the beads
asked by tina 
math
In a room of 20.000 ft^3 of air, 600 ft^3 of fresh air flows in per minute, and the mixture (made practically inform by circulating fans) is exhausted at a rate of 600 cubic feet per minute (cfm). What is the amount of fresh air inside the room y(t) at any
asked by deel 
math
3. If q = 2, evaluate (34 + 18q) — (5 + q). 60 63 68 77 i think it is b is that right?
asked by yoda 
Physics
In the school cafeteria, a troublemaking child blows a 12.0 g spitball through a 25.0 cm straw. The force of her breath as a function of the distance along the length of the straw can be modeled as 1050x^270x^3 where force is in newtons and x is in
asked by Chad 
health
Stress is a normal part of life. A. The above statement is false B. The above statement is never true C. The above statement is true D. None of the above D? because for sure its not B ...
asked by Aya 
Math
If all of the following triangles have the same perimeter, which has the greater area? a) a right triangle with legs of equal lengths b) an equilateral triangle, c) An obtuse triangle d) a triangle whose sides are all different lengths e)an isosceles
asked by Anonymous 
math
What does round off 3,258 to the nearest ten,hundred ,and thousand mean.
asked by Math Geek 
statistics
Automobile racing, highperformance driving schools, and driver education programs run by automobile clubs continue to grow in popularity. All these activities require the participant to wear a helmet that is certified by the Snell Memorial Foundation, a
asked by Anonymous 
statistics
The number of column inches of classified advertisements appearing on Mondays in a certain daily newspaper has mean 320 inches and standard deviation 30 inches. Suppose that the results for 100 consecutive Mondays can be regarded as a random sample and let
asked by lauren 
math
A tennis court is 24m long and 11m wide, what is the area of the tennis?
asked by rara 
math30
Sequences 1)A sequence has a first term of 24 and every other term is one half of the previous term. a)Write the first four terms of the sequence. b)Find a recursive formula that defines this sequence. c)Find an explicit formula that defines this sequence.
asked by alejandro 
Probability and Stats
A graduate class consists of six students. What is the probability that exactly three of them are born either March, June or November?
asked by Lori 
solid machanics
a material has a youngs modulus of 1.25*105N/mm2 and a poissons ratio of 0.25.calculate the modulus of rigidity and the bulks modulus.
asked by sanjeev 
physic
The figure shows a block P on top of another block Q. The two blocks are connected by a string which passes over a fixed smooth pulley. The mass of P is 0.20 kg and the mass of Q is 0.50 kg. The coefficient of static friction between blocks P and Q is 0.5
asked by Anonymous 
reading
When is the best time to read review the discussion questions? A. Immediately after you have finished all of the reading. B. After you write your notes. C. Before you begin any detailed reading. D. At least 1 hour after your detailed reading.
asked by chris 
Solid Mechanics
Determine the ratio of strenghts of a solid steel column to that a hollow column of the same material and having the same cross sectional area. The internal diameter of the hollow column is 1/2 of its external diameter. Both the columns are same length and
asked by rakesh 
MATH
If there were 58 students in the class, how many students had brown eyes?
asked by mook 
Chemistry
Can you provide me with some, at least two, examples each of the Limitations of the following chemical bondings; ionic bonding theory, coordinate bonding theory, covalent bonding theory and metallic bonding theory.
asked by Elie 
Science
Which of the following is a vector quantity? speed weight distance traveled mechanical energy Which of the following is a scalar quantity? work velocity acceleration displacement
asked by Amber 
6th Grade Math: Proportions
14/38=X/29. I'm still confused about figuring out what x is and getting X on its own. Please Help!!!
asked by Hollywood 
geometry
A rectangular field is 64 m X 25 m. Shawn wants to fence a square field that has the same area as the rectangular field. How long are the sides of the square field? Please explain the thinking behind your solution strategy.
asked by corina ruybal 
math
A right circular conical tank, point down, with top radius of R and height H is fully filled with a liquid whose weightdensity, d, depends on its depth from its surface as d(z) = az + b, where a and b are constant. What is the weight of the liquid in the
asked by ibranian 
Child Development
Written observation of children as their behaviors occur in their context are termed:
asked by Sandra 
Geometry
measure of angle 3=6x, measure of angle KAT=90x measure of angle 1=7x+3, measure of angle 2=6x+7 measure of angle 1=7x+3, measure of angle 2=6x+7 measure of angle 1=x, maesure of angle 3=4x measure of angle 1=2x8, measure of angle 3=116
asked by Danielle 
physics
a spring of force constant 'k' is cut into 2 parts whose lengths are in the ratio 1:2.The 2 parts are now connected in parallel and a block of mass 'm' is suspended at the end of the combined spring.find the period of oscillation performed by the block
asked by akshara 
science(Ms.Sue)
what does a maple tree do for a community A)it creates energy C)it looks nice B)it creates food D)it stores water my answer is B) am i right, if not tell me why please.
asked by lidia 
Physics
Jenn Suhr recently won the gold medal in this summer’s Olympic games in pole vault. Her record is 16 ft, 2 in. (She did less than that to win gold this summer.) If all of her gravitational potential energy came only from her kinetic energy, calculate (in
asked by Chad 
GDP
I was trying to calculate the GDP using the income method, but I don't know what to do with the inputs purchased etc. Here are the data: Agriculture: Total sales  $50 Capital goods Purchased  $40 Manufacturing inputs  $30 Wages  $20 Operating
asked by Talisha 
math
The interior of a typical mesung cup is a right circular cylinder of radius 6 cm. The volume of water we put in the cup is therefore a function of the level h to which the cup is filled. How closely do we have to measure h to measure out one liter of water
asked by ibranian 
Math Conversion
The cost is $4.95 per sq yd Size is 33 1/3 yd Width is 24" How much does it cost for 33 1/3 sq yards?
asked by Steve 
His 103 World Civilization I
Charlemagne did several things to make his Carolingian Empire larger and better administered with support from both vassals and the Church. Yet, not that many years after his death, much of that had been lost. Summarize what Charlemagne did to make his
asked by Quanta 
Math
Getting stumped on this word problem. It is in the section of GCF. It says, "there are 14 baseball teams in the American League and 16 teams in the National League. There are 30 National Hocky League teams. If equal groups of teams are formed, how many
asked by Brandi 
english
5. Which of the following sentences from I Know Why the Caged Bird Sings contains context clues that help you understand the meaning of the word in italics? Shame made me want to hide my face. She didn’t encourage familiarity. That dress looks
asked by yoda 
Physics
A missile launcher, mass M, at rest on a horizontal track fires a missile, mass m, horizontally. a) If the launch speed of the missile is v o , what (effective) coefficient of (kinetic) friction is required in order to stop the launcher within x meters?
asked by Chad 
Math
I want to make sure I'm doing the GCF correctly with 3 numbers. The problem is: Ari is making patriotic pins. He has 105 red ribbons, 147 white ribbons, and 189 blue ribbons. What is the greatest number of identical pins he can make if he uses all his
asked by Brandi 
Math
the cube has a volume of 8.If point x,the midpoint of AV is joined to point y, the midpoint of edge CD what is the length of the shortest distance from x to y?
asked by Grace 
Calculus
This is a question from my textbook that does't have a solution and quite frankly I have no idea what to do. Any tips would be greatly appreciated. Given the function f defined by f(x) = 9  x^2. Find the surface area bounded by the curve y = f(x), the x
asked by Paul 
health
It is recommended that a person ________ to manage and reduce stress.
asked by king 
CRITICAL THINKING
What do you think it means to use ethics or moral reasoning in your thinking
asked by TIA 
Solid Mechanics
A casts iron block of 5cm2 cross section carries load of 50KN. Calculate the magnitude or normal and shear stresses on a plane whose normal is inclined at 30o to the axis of the block. Also determine the maximum shear stress in the block.
asked by rakesh 
math
Draw a kite that has a triangle with sides 1, 1, 2x next to a triangle with sides 2x, 2, 2. Find the area A and the x that maximizes it.
asked by rolan 
testing
Testing
asked by Writeacher 
algebra
I am a multiple of 2 but not 3. I am the largest two digit number that fits the first clue.what am i?
asked by Gabe 
Grammar and Composition  Please help!
Can someone please check my essay? Deserted Island Essay The format for this essay should be based on the FiveParagraph Essay format. Use the following suggestions to create an island, details, and tone for your essay. As you read through the suggestions,
asked by CB 
Child Development
Arandomly selected sample of a population for study is one in which:
asked by Sandra 
Music
are the five notes on a guitar e a d b e
asked by BIG Brain 
HEALTH
What are some benefits to asking for help? A. You may discover that others have had similar problems B. Asking for help is never beneficial C. People can get into your personal matters D. All of the above
asked by Aya 
Algebra II
simplify by factoring ã90 is this correct? ^3ã10
asked by Liz 
Math
Point E is on side AB of rectangle ABCD. If the area of ABCD is 48, what is the area of triangle CDE?
asked by Anonymous 
math
The figure above consists of two equilateral triangles, one of which is inside the other. If the unshaded region within the larger triangle makes up 8/9 of that triangle's area, what is the ratio of the perimeter of the larger triangle to the perimeter of
asked by Sara 
Math
John will have to make 180 monthly mortgage payments and the first payment was made on January 15,1989.If he makes one payment each month,in what year will John make his last payment?
asked by Grace 
Math
John will have to make 180 monthly mortgage payments and the first payment was made on January 15,1989.If he makes one payment each month,in what year will John make his last payment?
asked by Grace 
Calculus
Write the statements for the basis, the induction hypothesis, and the induction step for the questions below. 1. 1 + 2 +…+n = n(n+1)/2 2. 1/1*2 + 1/2*3+…+1/n*(n+1) = n/n+1
asked by Brock 
algebra
Annual profit in thousands of dollars is given by the function, P(x) = 100*sqrt(x – 5) + 3000, where x is the number of items sold, x ≥ 5. 3. Find the profit for 6 different values of x (show your work). PLEASE use x = 5, 69, 105, 230, 366, and 489 and
asked by twin 
math
What is the answer to 14m= cm
asked by Einstein 
environmental science
Describe three common challenges with managing nonrenewable energy resources?
asked by TIA 
Solid Mechanics
pls help me to resolve this question A casts iron block of 5cm2 cross section carries an axial load of 50KN. Calculate the magnitude or normal and shear stresses on a plane whose normal is inclined at 30o to the axis of the block. Also determine the
asked by rakesh 
Conversion Double Check
Scary thing is I am an adult... If the cost is $4.95 sq yd and the roll is 33 1/3 yards how much does it cost for the roll if it is 24" wide 36" wide etc? What is the conversion formula?
asked by Steve 
Algebra II
Please help! I am stuck on this one. Need to simplify the expression. Assuming all variables are real numbers. ∛(27(x+2)^3) my answer =3x+6 not sure is this is correct.
asked by Liz 
math
If a triangle has a side with length 6 and another side with length 7, which of the following could NOT be the area of the triangle? a) 1 b) 6 c) 15 d) 21 e) 25
asked by Anonymous 
math
A street light (light source) is 15 m above the ground. A ball is freely released from a location of 9 m from the light with the same elevation as the light’s. While the ball is falling, it casts a shadow on the ground. Assuming the gravity is 10 m/s2,
asked by rolan 
Elementary Algebra
Can you help me solve this problem by elimination? 4x2y=16 5x+7y=1
asked by Wanda 
math
how do you multiply a fraction by a fraction
asked by BIG Brain 
What does this mean
What does this mean? it says write what his contributions was to the art world, and if and why opinions regarding this artist's contribution to the art world have changed over time.
asked by Bella 
finite math
SYGYZY BEEKEEPER RAZZMATAZZ LILOYPILLY QUINQUENNIUN WHIPPERSNAPPER NONANNOUNCEMENT STRAWBERRYRASPBERRY How many ways indistinhuishable arrangements can be made of the above letters?
asked by jon 
algebra
m
asked by mike 
math
If the ratio of the area of equilateral triangle A to the area of equilateral triangle B is 100 to 25, then what is the ratio of their altitudes?
asked by Sarah 
COM/215
REVISE Studying is hard work many students find they study better when they take regular breaks.
asked by Sonia 
math
A plate in the first quadrant, bounded by the curves y=e^x, y=1, and x=4, is submerged vertically in water its upper corner on the surface. The surface of the water is given by the line y=e^4. Find the total force on one side of the plate if the weight of
asked by ibranian 
7th grade math
solve for k 4k8k+7=53 Please explain how you found your answer!! Please help!!
asked by Alyssa 
art
how do you make a neat curve
asked by BIG Brain 
Math
Sally has seven blue socks and three white socks in a drawer. She picks out two socks without looking. What is the probability that both socks will be blue?
asked by Luu Luu 
math
Dear Ms.Sue is the answer 3,000.
asked by Math Geek 
math
how to turn 7 6/17 + 5/7 number in simplest form fractions?
asked by Abrahah 
math
Ms. Sue is it 3,300.
asked by Math Geek 
Science
how does a computer work
asked by Einstine 
chemistry
how many g of agno3 would you need to make a 575ml solution of 0.25 m agno3
asked by sherry 
english
could i find the word ill health in english language ? or illness/ sickness
asked by R S Telagathoty 
Art
how do you start painting a picture
asked by Einstine 
world history
what led to the islamic revival
asked by Anonymous 
Science
Determine the pH of a .10M solution of KA, the potassium salt of HA. For HA, Ka=1.0x10^5
asked by Stephanie 
Math
If n!/2=(n2)! then n=?
asked by Bob