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2012
April

Questions Asked on April 23, 2012

Roger made a mixture of salt and sand.Which of the following procedures explains the easiest way to separate the mixture?A.Pour
1. 3 answers
2. asked by Rezu
3. 838 views
Find the total differential forf(x,y,z)= cos(4x+3y+2z+1)
1. 1 answer
2. asked by Todd
3. 417 views
3CaCl2+2Na3PO4 -----------> 1Ca3(PO4)2+6NaClDid I correctly balance this equation?
1. 2 answers
2. asked by Wurola
3. 1,057 views
I choose xenophobia and discuss 5 ways in wich the human or enviromental problem impacts on the community
1. 1 answer
2. asked by Lerato
3. 1,226 views
1) For a reaction delta Go is more negative than delta Ho. What does this mean?a. delta So is zero. b. delta So is negative c.
1. 3 answers
2. asked by Hannah
3. 1,264 views
I don't get this problem! Please show work. Thanks!!The de Broglie wavelength of a proton in a particle accelerator is 3.60 x
1. 1 answer
2. asked by Jessie
3. 533 views
If the cosmic microwave background radiation (CMBR) is at a temperature of 2.7K, what is its peak wavelength?
1. 0 answers
2. asked by Leila
3. 486 views
If the Milky Way and the Andromeda galaxies are approximately 2 million light years apart and are moving toward each other at
1. 0 answers
2. asked by Jobeth
3. 410 views
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in
1. 0 answers
2. asked by Leila
3. 893 views
An aluminum wire has a diameter of d in. Determine the minimum diameter D of the coil in which the wire can be wound without
1. 0 answers
2. asked by Mary
3. 473 views
A solid, round simply supported steel shaft has a diameter of 25mm and span length of 500mm. The shaft supports a concentrated
1. 1 answer
2. asked by Mary
3. 637 views
Discuss 5 ways in wich the human or enviromental problem of xenophia
1. 1 answer
2. asked by Lerato
3. 388 views
A 12 mL sample of 0.4 M silver nitrate solution is mixed with 8 mL of 0.8 M sodium chloride solution. Determine the identity of
1. 1 answer
2. asked by Jo
3. 2,261 views
A 15mL sodium hydroxide solution of unknown concentration is titrated with 34.5 mL of 1.2M HCl solution. What was the
1. 2 answers
2. asked by Jo
3. 1,197 views
A cylindrical brass container with a base of 80.0 cm^2 and height of 20.0 cm is filled to the brim with water when the system is
1. 1 answer
2. asked by Romy
3. 650 views
A scuba diver has an air tank with a volume of 0.010 m^3. The air in the tank is initially at a pressure of 1.0x10^7 Pa. Assume
1. 0 answers
2. asked by Romy
3. 633 views
You have a 4.0 L steel tank containing hydrogen gas. You are able to heat or cool the tank, and measure the pressure of the gas.
1. 1 answer
2. asked by Wurola
3. 504 views
You have a 4.0 L steel tank containing hydrogen gas. You are able to heat or cool the tank, and measure the pressure of the gas.
1. 1 answer
2. asked by Wurola
3. 963 views
You dissolve 6.55 g of potassium nitrate in enough water to make a 250. mL solution.What is the molarity of this solution
1. 1 answer
2. asked by Wurola
3. 442 views
What is true about a system in chemical equilibrium?No reactants remain in the system. There are no products in the system. The
1. 1 answer
2. asked by Viola
3. 1,488 views
I need you help to revise a few sentences on history. Thank you, Writeacher.1) The Eighteenth Amendment to the Constitution,
1. 1 answer
2. asked by Mike1
3. 485 views
Having just spent $1500 for a new engine for his old car, Raimndo now learns his transmission needs to be replaced. Raimundo
1. 1 answer
2. asked by Carol
3. 610 views
A hot iron horseshoe (mass = 0.43 kg), just forged (Fig. 14-16), is dropped into 1.60 L of water in a 0.26 kg iron pot initially
1. 1 answer
2. asked by Julie
3. 5,120 views
A warehouse having a volume of 10,000 ft3 and a floor area of 1000 ft2 is to be built. The costof constructing the floor is
1. 1 answer
2. asked by Emmanuel
3. 517 views
I will never forget a time I lost something important when I was in high school.1. It was seven years ago when I was in ninth
1. 2 answers
2. asked by hardik
3. 646 views
12. A Treasury note with a maturity of four years carries a nominalrate of interest of 10 percent. In contrast, an eight-year
1. 0 answers
2. asked by Johniece
3. 870 views
Institutions/community organizations that are involved in supporting teenage pregnancy
1. 1 answer
2. asked by Mashapa Tebogo
3. 387 views
If f (x) = x² + 3 and g (x) = 3x - 1 then find the following:1a. (f+g)(x) 1b. (f+g)(3) 1c. (f-g)(x) 1d. (fg)(x) 1e. (fg)(-1)
1. 1 answer
2. asked by elizabeth
3. 828 views
Jane Hilman went to her bank. She had a balance of $1,009.88 in her savings account. She withdrew $130.00 and the teller
1. 2 answers
2. asked by kay
3. 1,889 views
What does follicular activity mean?
1. 2 answers
2. asked by Sarah
3. 457 views
In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community.Provide relavant
1. 6 answers
2. asked by nqobile
3. 766 views
A card game uses a pack of 24 cards, consisting of ace, king, queen, jack, 10, and 9 in each of the four suits spade, hearts,
1. 1 answer
2. asked by Peggy
3. 676 views
Can someone please show steps as I am having a hard time understanding. The position (in meters) of a particle is modeled by
1. 5 answers
2. asked by Drew
3. 508 views
If f (x) = x² + 3 and g (x) = 3x - 1 then find the following:1. (f/g)(x) 2. (f o g)(x) 3. (f o g)(1) 4. (g o f)(x)
1. 0 answers
2. asked by elizabeth
3. 272 views
A bike costs $117. This is $12 more than 3 times the amount Tom saved last month. How much money did Tom save last month? Write
1. 1 answer
2. asked by gina
3. 467 views
Hello. I will really appreciate some help.Do you think it's possible to say: "She regrets not buying the house" or is it "she
1. 1 answer
2. asked by Ilma
3. 906 views
what are the rules used to determine the solubility of salt?
1. 5 answers
2. asked by Kelly
3. 1,066 views
Just made it a new post didn't what it to get overcrowning.I hope this will help us figure out nowFor questions #1 through #10,
1. 1 answer
2. asked by cateye
3. 1,102 views
How do you do 3 digit multiplication?Example 145x312
1. 4 answers
2. asked by Neon
3. 813 views
Hey friends i need some help on this . . . . . 1) put there following sentences in a correct coherence ordera) He is not a
1. 2 answers
2. asked by elias
3. 440 views
If $300 = 7% of X then X = ?
1. 1 answer
2. asked by Yvonne
3. 518 views
A uniform rectangular sign of width 47.6 cm, height 25.0 cm, and negligible thickness hangs vertically from supporting hinges
1. 0 answers
2. asked by Alex
3. 529 views
What are some special interest groups that would agree or disagree with the message in the cartoon, "Have a Care, Sir" by
1. 1 answer
2. asked by Rose
3. 1,068 views
what is the slpe fo the two points (1,1) and (6,3)?is it -1/6
1. 1 answer
2. asked by Taylor
3. 304 views
what is the slope between the two points (-4,6) and (-4,2)?is it 5
1. 1 answer
2. asked by Taylor
3. 308 views
what is the slope between the two points (3,-7) and (-1,-7)i don't know it
1. 1 answer
2. asked by Taylor
3. 319 views
A bakery packages cookies in two sizes of boxes, one with 18 cookies and the other with 24 cookies. A small number of cookies
1. 3 answers
2. asked by Nicole
3. 1,797 views
You are to use an array of doubles to compute the average of a sequence of numbers and the standard deviation of the numbers.
1. 1 answer
2. asked by MAX
3. 538 views
Complete the exericse with basic words.Add ion to each verb to make a basic wordprotect answer: protection confess answer:
1. 4 answers
2. asked by Neon
3. 480 views
Write a word that fits each definitionchoices:
1. 1 answer
2. asked by Neon
3. 446 views
If the cosmic microwave background radiation (CMBR) is at a temperature of 2.7K, what is its peak wavelength?
1. 3 answers
2. asked by Leila
3. 696 views
If the Milky Way and the Andromeda galaxies are approximately 2 million light years apart and are moving toward each other at
1. 1 answer
2. asked by Jobeth
3. 459 views
write a word that fits each meaningCHOICES: irritate,irritation,contaminate,contamination 15.an impurity:contaminate 16.to
1. 3 answers
2. asked by Neon
3. 442 views
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in
1. 0 answers
2. asked by Leila
3. 567 views
By what factor should each edge of a cube be increased in order to increase its volume by a factor of 27?a.) 27 b.) 9 c.) 3 d.)
1. 1 answer
2. asked by Taylor
3. 530 views
1.513g of monoprotic acid (HX) is dissolved in water, and the volume is 250.0 ml after the dissolving. The solution was then
1. 1 answer
2. asked by Anna
3. 494 views
A proton moves in a constant electric field Efrom point A to point B. The magnitude of the electric field is 4.2 x10^4 N/C; and
1. 1 answer
2. asked by Anonymous
3. 6,817 views
write a basic or review word to complete each book title.1.Dont dirty or ___ our water by crystal kleer:pollute 2.how to __ a
1. 4 answers
2. asked by Neon
3. 435 views
Light that passes through a pair of eyeglasses is-a.transmitted b.absorbed c.reflected d.refracted D?
1. 1 answer
2. asked by Rezu
3. 1,749 views
Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey cards. Which number sentence can be used to find how many
1. 1 answer
2. asked by Amy
3. 397 views
The roots of the Iranian hostage crisis resided in: 1. Jimmy Carter’s emphasis on human rights. 2.the Shah of Iran’s
1. 2 answers
2. asked by Mary
3. 1,542 views
Water pollution is harming an ecosystem.Many of the organisms that once lived in the ecosystem moved to a new area.The organisms
1. 2 answers
2. asked by Rezu
3. 456 views
Plato rejected democracy because of the execution of Socrates. Why did Plato's student, Aristotle,rejected democracy?A. He felt
1. 3 answers
2. asked by ciara
3. 585 views
1) The standard molar entropy value of N2 (g) is 191.5 J/K-mol,of O2 (g) is 205.0 J/K-mol and of NO2 (g) is 240.0 J/K-mol. From
1. 1 answer
2. asked by Hannah
3. 2,167 views
Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey cards. Which number sentence can be used to find how many
1. 1 answer
2. asked by Amy
3. 351 views
what is the slope of (7,2) and (-1,3)is it -8
1. 1 answer
2. asked by Taylor
3. 277 views
The market interest rate for Christian Charities is 8% on January 1, 2008. On that day, Christian Charities issued the following
1. 0 answers
2. asked by kayla
3. 609 views
what is the slope of (3,-7) and (-1,-7)is it 4
1. 1 answer
2. asked by Taylor
3. 277 views
what is the slope of (2,-1) and (3,2)is it -3
1. 2 answers
2. asked by Taylor
3. 262 views
How can a permanent magnet be demagnetized?cut the magnet in half heat the magnet up (my choice) strike the magnet with a heavy
1. 0 answers
2. asked by lilman
3. 571 views
Is there a website that tell all things that are invented like a thread-spinning mill, metal plow, a telegraph, etc.That also
1. 5 answers
2. asked by Laruen
3. 845 views
A ramp that is 4 ft., 3 ft.at one end. I want a 30% slope to the ground; how long should the ramp be?
1. 0 answers
2. asked by James
3. 322 views
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in
1. 0 answers
2. asked by Leila
3. 466 views
What is the volume of2.8 × 106 molecules He? Answer in units of L
1. 2 answers
2. asked by please help
3. 452 views
Can you work this problem6yd 2ft +7yd 1ft
1. 4 answers
2. asked by Mom
3. 1,040 views
The Pumpkin Patch Doll Company has detrmined that the profit the company makes on Pumpkin Patch Dolls if given by the equation
1. 1 answer
2. asked by Carolyn
3. 491 views
A sample of oxygen at 25 degrees C occupies 697 mL.If this sample later occupies 1062 mL at 55 degrees C and 1.3 atm, what was
1. 2 answers
2. asked by please help
3. 586 views
On my ELA exam which was SOOOOOOO EASY it says something about a black smith (a little biography about a blacksmith person)what'
1. 6 answers
2. asked by Laruen
3. 830 views
what is g(f(x))? and f(g(x))?if f(x)=(1)/(sqaure root3x) and g(x)=x^2-5 Thanks!
1. 1 answer
2. asked by Jack
3. 890 views
Describe the life style disease/behaviour and explain 5 factor that contribute to substance abuse
1. 1 answer
2. asked by Simukeliso trevor buthelezi
3. 611 views
Ann wants to plant a rectangular garden next to a straight river. She has 120 feet of fencing and will not fence the side of the
1. 1 answer
2. asked by Carolyn
3. 776 views
find the math product of u and vu= (6,7) v= (-3,9)
1. 1 answer
2. asked by Sam
3. 295 views
Trying to find how many jelly beans that can be in the jar?Exactly half were red and exactly one-third were blue, which of the
1. 3 answers
2. asked by Marc-Anthony Cienfuegos
3. 1,087 views
If a car leaves a skid mark of 500 feet, how fast was the car traveling?Using the formula r=2�ã5L
1. 1 answer
2. asked by Coach
3. 611 views
1) Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is2 NOCl (g) -> 2 NO (g) + Cl2 (g) at 227oC Using delta
1. 2 answers
2. asked by Hannah
3. 951 views
Write S if the sentence is simple .Write C if the sentence compound.1) Paul plays on the basketball team and works part time at
1. 3 answers
2. asked by joseph
3. 624 views
How would you graph g(x) = -f(x-5)?Thanks!
1. 0 answers
2. asked by Wendy
3. 294 views
A merry-go-round with r = 4m and a perfect frictionless bearing is pushed with a force of 24 N by a young girl. She pushes with
1. 2 answers
2. asked by Charlie
3. 812 views
A special pulley has two discs with radii R1 = .8 m and R2 = .35 m. A rope from the R2 disc connects the pulley to a wall and a
1. 0 answers
2. asked by Charlie
3. 615 views
A 3.0 m beam with mass 50.0 kg is attached to a wall with a hinge. A rope is connected to the middle of the beam and the wall
1. 0 answers
2. asked by Charlie
3. 1,119 views
A 10 kg monkey wishes to climb a 7.15-meter high vine. The vine will break if the tension exceeds 110 N. The monkey starts from
1. 0 answers
2. asked by Charlie
3. 591 views
An actor in an action movie is supposed to jump up and catch a ring moving overhead which will carry him to safety. The ring is
1. 0 answers
2. asked by Charlie
3. 457 views
A 50-kg person starts from rest at the top of a large frictionless spherical surface (radius 6 m) and slides into the water
1. 0 answers
2. asked by Charlie
3. 466 views
To calculate power, multiply voltage measured in ---- by ---- measured in amps.
1. 0 answers
2. asked by lilman
3. 708 views
Using a diagram to represent a barometer, The first bubble has 4.0L of Ar @ 1.5 atma stopcock in between. middle bubble 3.0L Xe
1. 1 answer
2. asked by tara
3. 476 views
A cattle rancher wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the
1. 2 answers
2. asked by Marie
3. 4,434 views
Explain how to expand the fraction 4/5 into a fraction with 15 as a denominator.
1. 3 answers
2. asked by Analisa
3. 328 views
I need help with a C++ exercise.I need to write a code to display a table consisting of four rows and 11 columns. The first
1. 0 answers
2. asked by WhoCares
3. 1,106 views
Farmer Jones wants to build a recangular pen with three equalparts. He has 200 feet of fencing. What dimensions willproduce the
1. 1 answer
2. asked by Carolyn
3. 449 views
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in
1. 0 answers
2. asked by Leila
3. 360 views

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