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2012
April

Questions Asked on April 23, 2012

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. 6,838 views
A person walks 1 mile every day for exercise leaving her front porch at 9:00 am and returning to her porch at 9:25 am what's the
1. 8 answers
2. asked by Julia
3. 5,142 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. 5,137 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. 4,459 views
an oil layer floats on 87 cm of water in a tank. the pressure at the bottom of the tank is 120.0 kPa. How thick is the oil?
1. 1 answer
2. asked by Deanna
3. 4,049 views
A certain dog whistle operates at 23.5 kHz, while another (brand X) operates at an unknown frequency. If neither whistle can be
1. 2 answers
2. asked by Drew
3. 3,508 views
Viscous blood is flowing through an artery partially clogged by cholesterol. A surgeon wants to remove enough of the cholesterol
1. 1 answer
2. asked by Melissa
3. 2,845 views
A ladder leaning against a building makes a 40 degree angle with the ground. The top of the ladder reaches 10 feet above the
1. 1 answer
2. asked by Jessica
3. 2,802 views
a pole leans away from the sun at an angle of 7 degrees to the vertical. when the elivation of the sun is 48 degrees the pole
1. 2 answers
2. asked by Anonymous
3. 2,662 views
7. Explain - Why is it important to evaluate the work plan? What might happen if team members fail to evaluate it?Answer - The
1. 5 answers
2. asked by Laruen
3. 2,361 views
If the chemist mistakenly makes 275 mL ofsolution instead of the 200 mL, what molar concentration of sodium nitrate will the
1. 2 answers
2. asked by please help
3. 2,338 views
What volume of solvent should be added to36.8 g of CH3OH to produce a 0.500 M solution of CH3OH?
1. 1 answer
2. asked by please help
3. 2,309 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. 2,281 views
Do free electrons appear anywhere in the balanced equation for a redox reaction?a) Yes, free electrons appear in the right part
1. 3 answers
2. asked by Abby
3. 2,254 views
1 _____is defined as one-half of the distance between the nuclei of two adjacent metal atoms in the close packed crystal lattice
1. 20 answers
2. asked by mike
3. 2,224 views
Let R be the region bounded by the x-axis and the graph of y=6x-x^2 Find the volume of the solid generated when R is revolved
1. 2 answers
2. asked by Kelsey
3. 2,202 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. 2,187 views
Which of the following four processes are accompanied by an increase in entropy?1. I2 (s) -> I2 (g) 2. 2 I (g) -> I2 (g) 3. 2
1. 3 answers
2. asked by Hannah
3. 2,095 views
Moving a magnet inside a coil of wire will induce a voltage in the coil. How can the voltage in coil be increased?move the
1. 1 answer
2. asked by lilman
3. 1,976 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. 1,909 views
The uranium used for nuclear fuel exists in nature in several minerals. Calculate how many moles of uranium are in 6.0 moles of
1. 1 answer
2. asked by Tiffany
3. 1,894 views
find the rectangular eqaution of the curve whose parametric equations are x=5cos2T and y=-sin2T, where 0 is less than/equal to T
1. 1 answer
2. asked by Tabby
3. 1,848 views
A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123°C if the
1. 2 answers
2. asked by devin
3. 1,829 views
Enough of a monoprotic acid is dissolved in water to produce a 0.0165 M solution. The pH of the resulting solution is 2.38.
1. 2 answers
2. asked by RZeal
3. 1,822 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. 1,813 views
When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?ClO3- +
1. 1 answer
2. asked by mercy
3. 1,773 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. 1,762 views
CaCl2(aq)+Na3PO4(aq) -----------> Ca3(PO4)2(s) +NaCl(aq)4) If the “H” for this reaction is -45.5 kJ/mol, is the reaction
1. 1 answer
2. asked by Wurola
3. 1,678 views
A 2.8 kg rectangular air mattress is 2 meters long,.5 meters wide, and .1 meter thick what mass can't support 50% submerged.
1. 1 answer
2. asked by katie
3. 1,633 views
What is the perimeter of a computer graphic with sides measuring:2 times the square root of 50, 3 times the square of 72, 6
1. 1 answer
2. asked by Taurus
3. 1,621 views
Given the unbalanced equation:(NH4)2 CO3-> NH3 + CO2 + H2O Calculate the mass of ammonia gas that is produced if 1.25g of
1. 1 answer
2. asked by Lindsey
3. 1,582 views
the student store sells schools supplies,hats,and t-shirts with NAMS printed on them.The person who counted the hats and
1. 1 answer
2. asked by Matt
3. 1,579 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. 1,556 views
How many grams of NH3 can be producedfrom the reaction of 17.8 moles of H2 and a sufficient supply of N2? N2 + 3H2 ---> 2NH3
1. 3 answers
2. asked by please help
3. 1,552 views
rectangular cake pans X and Y are similar. The ratio of the width of pan X to the width of pan Y is 3:4. the length of pan X is
1. 2 answers
2. asked by Eurie
3. 1,528 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. 1,499 views
Building windows: Window World, Inc., is responsible for designing new windows for the expansion of the campus chapel. The
1. 1 answer
2. asked by Yadira
3. 1,384 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. 1,280 views
Which choice below has the highest standard molar entropy?SiCl4(s), CCl4(g), CCl4(l), Si(Cl4(l) I know that the gas state has
1. 4 answers
2. asked by Hannah
3. 1,252 views
How many grams of NH3 can be producedfrom the reaction of 17.8 moles of H2 and a sufficient supply of N2? N2 + 3H2 ! 2NH3
1. 1 answer
2. asked by please help
3. 1,248 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. 1,246 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. 1,220 views
A tire with an inner volume of 0.0250 m3 is filled with air at a gauge pressure of 30.3 psi. If the tire valve is opened to the
1. 5 answers
2. asked by Akbar
3. 1,211 views
A scuba diver is at the surface of the water and preparing to swim to a shipwreck. The shipwreck is 20 meters underwater and the
1. 1 answer
2. asked by Anonymous
3. 1,194 views
Is there a difference among the following sentences, Writeacher? Thank you.I included a few other sentences. He made breakfast
1. 1 answer
2. asked by Mike1
3. 1,140 views
I was wondering if you can help me with these two questions. Thank youQuestion # 1 A horse is pulling a heavy cart up a hill.
1. 10 answers
2. asked by Teal
3. 1,138 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. 1,137 views
The area of a trapezoid is 80 square units. If its height is 8 units, find the length of its median.
1. 1 answer
2. asked by Meredith
3. 1,124 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. 1,121 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. 1,121 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. 1,099 views
A man 1.7m tall observe a bird on top of a tree at angle of elevation of 40degree. If the bird distance between the man's head
1. 1 answer
2. asked by Kaylie
3. 1,078 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. 1,078 views
what are the rules used to determine the solubility of salt?
1. 5 answers
2. asked by Kelly
3. 1,077 views
On the axis below, draw the titration curve for the titration of CH3COOH (a weak acid) with NaOH (a strong base). In the
1. 0 answers
2. asked by Anonymous
3. 1,069 views
3CaCl2+2Na3PO4 -----------> 1Ca3(PO4)2+6NaClDid I correctly balance this equation?
1. 2 answers
2. asked by Wurola
3. 1,069 views
To Ms. Sue - Laruen, Sunday, April 22, 2012 at 6:05pmThe radial artery is found close to the inside part of your wrist near your
1. 8 answers
2. asked by Laruen
3. 1,062 views
The driver of a 1,450kg car, whose iron brake calipers mass is 3kg endures a brain malfuction at the top of a 20 degree parking
1. 0 answers
2. asked by katie
3. 1,058 views
Can you work this problem6yd 2ft +7yd 1ft
1. 4 answers
2. asked by Mom
3. 1,056 views
Given the balanced equation N2(g)+3H2(g)==>2NH3Calculate: a)the volume H2 that reacts with 12L of N2 b)the volume of NH3
1. 5 answers
2. asked by faisal
3. 1,046 views
A child plays on a bungee cord and oscillates with a certain frequency f. An adult with a mass that is 17.8 times greater than
1. 0 answers
2. asked by Anonymous
3. 1,035 views
Which of these is a run-on sentence?A. I thought about what he'd said soon I realized he was right. B. Before lunch, I played
1. 1 answer
2. asked by Anonymous
3. 1,024 views
Comprehension5. (a) What was the purpose of the Embargo Act? (b) Why did it fail? Answer (a) - The purpose of the Embargo Act is
1. 4 answers
2. asked by Laruen
3. 1,016 views
The de Broglie wavelength of a proton in a particle accelerator is 3.60 x 10^-14 m. Determine the kinetic energy (in joules) of
1. 3 answers
2. asked by Jessie
3. 1,003 views
Find the equation of the tangent line to the curve y=e^2x + 4x at the point (0,1)
1. 1 answer
2. asked by John
3. 982 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. 974 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. 972 views
A small 0.499 kg object moves on a frictionless horizontal table in a circular path of radius 0.96 m. The angular speed is 6.37
1. 0 answers
2. asked by Daniel
3. 971 views
A person walks 1 mile every day for exercise leaving her front porch at 9:00 am and returning to her porch at 9:25 am what's the
1. 3 answers
2. asked by Julia
3. 954 views
A right triangle has a base measuring 5 centimeters & a height of 12 centimeters. By what amount will the area of this triangle
1. 1 answer
2. asked by Taylor Leigh
3. 949 views
determine the acceleration of a 25 kg crate being dragged across a floor by a 150 N force at a 42 degree angle above the floor
1. 1 answer
2. asked by Syd
3. 943 views
How many molecules are in 1.60 g of SO2?Answer in units of molec
1. 1 answer
2. asked by luke
3. 928 views
Find the length of a simple pendulum that completes 17.0 oscillations in 35.0 s.
1. 3 answers
2. asked by Alex
3. 925 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. 923 views
Consider the reaction MnO2+4HCL===>MnCl2+Cl2+2H2OHow many grams of MnO2 are required to produce 5.6 of Cl2 at stp?MnO2=87
1. 1 answer
2. asked by faisal
3. 920 views
By titration it is found that 66.1 mL of 0.125 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the
1. 2 answers
2. asked by trae
3. 907 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. 906 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. 898 views
Calculate how many moles of products(s) would be produced if 0.500 mole of the first reactant were to react completely.BaCl2 +
1. 1 answer
2. asked by Lindsey
3. 892 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. 891 views
identify and describe one environmental proble that causes ill health,accidents,crises,and disasters within your community or
1. 2 answers
2. asked by john
3. 890 views
You dissolve 6.55 g of potassium nitrate in enough water to make a 250. ML solution.1.What is the molarity of this
1. 6 answers
2. asked by cateye
3. 863 views
rewrite the expression in terms of the first power of the cosine.sin^8x
1. 1 answer
2. asked by CLF
3. 861 views
A prism has 10 faces.How many faces does a pyramid with the same base have?
1. 1 answer
2. asked by blah
3. 860 views
Please Help Me!!"Crown Molding' is a decorative strip of wood around the walls up by the ceiling of a room. How many linear feet
1. 1 answer
2. asked by Taylor Leigh
3. 859 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. 857 views
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. 856 views
Part ALisa has downloaded 260 songs on her mp3 player,of her260 songs, 117 are pop music. What percent of lisas songs are pop
1. 3 answers
2. asked by Mike
3. 850 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. 843 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. 841 views
What is the solubility of AgCl when it is in a solution of 0.15 M NaCl? (AgCl has Ksp = 1.8 x 10-10.) Make a reaction table.
1. 1 answer
2. asked by Anonymous
3. 831 views
Calculate how many grams of the product(s) would be produced by complete reaction of 0.125 mole of the first reactant.CaCO3 +
1. 1 answer
2. asked by Lindsey
3. 830 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. 828 views
How do you do 3 digit multiplication?Example 145x312
1. 4 answers
2. asked by Neon
3. 822 views
Using the Bohr model, estimate the wavelength ë of the Ká characteristic X-ray for a metal an atom of which contains Z = 50
1. 6 answers
2. asked by jason
3. 818 views
How many grams of sodium-hydroxide will react with 49g of phosphoric acid?H3PO4=98g/mol,NaOH=40/mol.The equation is:3H2O+Na3PO4
1. 1 answer
2. asked by faisal
3. 816 views
Q: AN OBJECT IS MOVING PAST YOU IN A STRAIGHT LINE WITH A CONSTANT SPEED. YOU CAN CONCUDEDA. THAT THERE IS A CONSTANT FORCE IN
1. 1 answer
2. asked by JACOB
3. 801 views
If the acetylene were burned to form water and carbon dioxide, how many kilojoules of energy would be produced from the complete
1. 1 answer
2. asked by Melissa
3. 799 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. 792 views
identify and describe one environmental problem that causes ill health,accidents,crises.
1. 2 answers
2. asked by tryphina
3. 784 views

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