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Questions Asked on March 20, 2012

A 32.2 g iron rod, initially at 22.3 C, is submerged into an unknown mass of water at 63.9 C, in an insulated container. The
1. 7 answers
2. asked by HELP
3. 8,678 views
The home states of a certain group of people are distributed as follows: 53 percent are from MISSOURI, 21 percent are from
1. 4 answers
2. asked by Lucy King
3. 6,260 views
Consider the reaction.PbCO3(s)<--> PbO(s) + CO2(g). calculate the equilibrium pressure of CO2 in the system at the following
1. 6 answers
2. asked by DAN
3. 5,931 views
Convert the Cartesian equation x^2 - y^2 = 16 to a polar equation.r² = 16/cos2è r = -4 r² = 8 help please im stuck between 2
1. 2 answers
2. asked by Adrianna
3. 3,833 views
1. What is his personality like?2. What is his personality? 3. He is generous. (Which question is correct?)
1. 2 answers
2. asked by rfvv
3. 3,772 views
Consider the following thermochemical equation for the combustion of acetone (C3H6O), the main ingredient in nail polish
1. 3 answers
2. asked by Ashley
3. 3,003 views
Write the equation for the circle with center at (- 8, - 6) and radius of 10.(x+8)² + (y + 6)² = 10 (x+8)² + (y + 6)² = 100
1. 3 answers
2. asked by Adrianna
3. 2,956 views
11-1 Lines that Intersect Circles8. The International Space Station orbits Earth at an altitude of 240 miles. What is the
1. 3 answers
2. asked by Ariel
3. 2,897 views
What's the next number 360, 180, 60, 15...?
1. 2 answers
2. asked by julie
3. 2,887 views
The fastest helicopter, the Westland Lynx, has a mass of 3.343 x 103 kg and a maximum momentum of 3.723 x 105 kg.m/s. What is
1. 4 answers
2. asked by Anonymous
3. 2,862 views
Write a program that determines the day number (1 to 366) in a year for a date that is provided as input data. As an example,
1. 2 answers
2. asked by hafsa
3. 2,777 views
for the story the street of the Canon..-how does pepe gonzalez behave when he first arrives in the village the night of the
1. 3 answers
2. asked by Taylor
3. 2,186 views
A vitamin C tablet containing 250 mg of ascorbic acid (C6H7O6; Ka = 8.0 x 10-5 is dissolved in a 250 mL glass of water. What is
1. 1 answer
2. asked by Finding the pH of a weak acid?
3. 1,961 views
If theta= pi/3 , then to convert to a Cartesian equation, let x =A.(1/2)r B.(square root of2/2)r C.(square root of 3/2)r
1. 3 answers
2. asked by Adrianna
3. 1,934 views
The perimeter of a rectangular pool is 84 feet. The width of the pool is half the length. What are the measurements of the
1. 1 answer
2. asked by ali
3. 1,907 views
Two locations, one in northern canada and one in the southwestern United states, recive the same amount of precipitation each
1. 3 answers
2. asked by Unknown
3. 1,886 views
Write the general solution to y = arcsin (0.6428).40°±360°k 140°±360°k 220°±360°k 320°±360°k
1. 1 answer
2. asked by Pebbles
3. 1,851 views
Problem 7. Design an algorithm that will produce a savings account balance report from a customer savings account file. Each
1. 1 answer
2. asked by Anonymous
3. 1,762 views
What is the equilibrium equations that result when solid NH4F is dissolved in sufficient water to produce 5.0 mL of 0.5M NH4F
1. 1 answer
2. asked by Megan
3. 1,700 views
The following reaction was studied at −10°C.2 NO(g) + Cl2(g) → 2 NOCl(g) The following results were obtained where the rate
1. 1 answer
2. asked by Kaleen
3. 1,623 views
Mg(OH)2 + 2HCl = MgCl2 + 2H2O if 33.5g of Mg(OH)2 react, what mass of H2O could be produced
1. 1 answer
2. asked by kae
3. 1,523 views
A soccer ball is kicked upward from the ground with an initial vertical velocity of 3.6 meters per second. After how many
1. 3 answers
2. asked by Michael Alvarez
3. 1,513 views
In order for an employee to deduct home office expenses, which of the following must occur?a. There must be no other fixed
1. 2 answers
2. asked by Andy
3. 1,501 views
11-1 Lines that Intersect Circles15. Olympus Mons's peak rises 25 kilometers above the surface of the planet Mars. The diameter
1. 3 answers
2. asked by Ariel
3. 1,498 views
Dinitrogen tetroxide decomposes according to N2O4 (g) = 2NO2 (g)In a certain experiment, N2O4(g) at an initial pressure of 0.554
1. 1 answer
2. asked by Angel
3. 1,472 views
Dear Editor,1 In your recent article "Just a Play Day," you argue that playing video games is a waste of time. You also descrive
1. 7 answers
2. asked by running.from.myself
3. 1,404 views
The five year survival rate for Caucasians for all forms of cancer increased from 39% in the 1960's to 57% now. Express the
1. 2 answers
2. asked by Anonymous
3. 1,395 views
I really need help pleaseYour primary job’s gross income is $3,500.00/month, and your second job’s realized income is
1. 1 answer
2. asked by Cindy
3. 1,392 views
How much heat is required to warm 1.50 kg of sand from 20.0 C to 100.0 C?
1. 2 answers
2. asked by Derek
3. 1,347 views
The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red), whereas its index of refraction is 1.530 at a
1. 1 answer
2. asked by Help
3. 1,314 views
The Surface Area of a Square Pyramid is 112 sq. ft. If the Length of Each Edge of the Base is 8 ft, what is the Height of each
1. 1 answer
2. asked by Deshana
3. 1,308 views
The vertices of a triangle are P(–4, 1), Q(–2, –8), and R(8, –1). Name the vertices of the image reflected across the
1. 4 answers
2. asked by Katie
3. 1,305 views
Why is it important to line up the fraction strips on the left?
1. 4 answers
2. asked by Nelson
3. 1,297 views
Determine a relationship between the x- and y- values in the equation {(0,1), (1,0), (2, -1), (3, -2)}. Write an
1. 2 answers
2. asked by Mona
3. 1,296 views
An object place 5cm in front of a converging lens of focal lenght 10cm produces a magnified image 8cm.find the size and the
1. 1 answer
2. asked by Abdulrazaq
3. 1,267 views
Bob can swim at a rate of 5km/h. He is in a river that is flowing at a rate of 9 km/h.a) if bob swims upstream, what is his
1. 1 answer
2. asked by Jake
3. 1,204 views
Calculate DeltaHrxn for the following reaction:C + H2O --> CO + H2 Use the following: C + O2 --> CO2 DeltaH = -393.5 kJ 2CO + O2
1. 1 answer
2. asked by Chemistry
3. 1,202 views
Uranium-238 has half life of 4.51 * 10^9 yearsUranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 *
1. 1 answer
2. asked by Harry
3. 1,178 views
Find the dimensions of a rectangle with perimeter 40 with the largest area. (hint: Find an equation for area and one for
1. 2 answers
2. asked by Jordan
3. 1,176 views
What amount of heat is required to increase the temperature of 75.0 grams of gold from 150°C to 250°C? The specific heat of
1. 1 answer
2. asked by Anonymous
3. 1,142 views
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 45.0°. The index
1. 0 answers
2. asked by HELP!!!!
3. 1,126 views
The molar heat capacity of silver is 25.35j/mol C . How much energy would it take to raise the temperature of 9.30 grams of
1. 3 answers
2. asked by help
3. 1,110 views
Suppose that, for students who are enrolled in college algebra, 78 percent are freshmen, 40 percent are female, and 28 percent
1. 1 answer
2. asked by Anonymous
3. 1,106 views
i need to write the word that describes the lines or line segments for the following:1> the strings on guitar : parrallel 2. the
1. 1 answer
2. asked by marko
3. 1,086 views
Charcoal is primarily carbon.Determine the mass of CO_2 produced by burning enough carbon (in the form of charcoal) to produce
1. 1 answer
2. asked by Lynn
3. 1,052 views
alexander jogs 4 miles every 30 minutes if he jogs at this rate how long will it take him to jog a total distance of 24 miles?
1. 3 answers
2. asked by Anonymous
3. 1,050 views
Which of the following 1-gram blobs of water has the least surface area? A) All have about the same surface area.B) A spherical
1. 1 answer
2. asked by Kristie
3. 1,038 views
I left out these other two sentences. Thank you very much.I need to fix sentence 2 using linkers. 1) From the ship Robinson
1. 1 answer
2. asked by Matthew
3. 1,016 views
How could you use the product of 1/5x 40 to find the product of 4/5 x 40?
1. 3 answers
2. asked by Jackie
3. 998 views
A gas is compressed from an initial volume of 5.60 L to a final volume of 1.22 L by an external pressure of 1.00 atm. During the
1. 0 answers
2. asked by jesse
3. 995 views
THE VOLUME OF A RECTANGULAR PRISM IS 140 CUBIC FT. THE LENGTH OF THE BASE IS 7FT AND THE WIDTH OF THE BASE IS 4FT. WHAT IS THE
1. 1 answer
2. asked by ely
3. 990 views
Can you please check these other sentences? Thank you very much.1) Robinson makes Friday a slave. He calls him Friday because of
1. 1 answer
2. asked by Matthew
3. 980 views
given; how many grams of fe2o3 can be converted to fe3o4 by 14 grams of co?
1. 1 answer
2. asked by Anonymous
3. 965 views
Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on
1. 1 answer
2. asked by Cindy
3. 961 views
there are 6 brownies on a plate. Four people share them equally. How many brownies does each person get? show your solution
1. 3 answers
2. asked by veil
3. 953 views
find the median 44,68,48,61,59,48,63,49
1. 2 answers
2. asked by tdog
3. 945 views
fact and opiniona fact tells something that can be proved true or false. an opinion tells someones ideas or feelings.words that
1. 3 answers
2. asked by dw
3. 937 views
3logX - log6 + log2.4 = 9
1. 0 answers
2. asked by Anonymous
3. 931 views
i added info in the last question in AP CHEMISTRY
1. 0 answers
2. asked by DAN
3. 919 views
For an experiment I had to add 1 drop of 1.0M HCl into a test tube that had 2.5mL of 0.10M Na2CrO4 and record the color.The
1. 7 answers
2. asked by Hannah
3. 916 views
Dear Editor,1 In your recent article "Just a Play Day," you argue that playing video games is a waste of time. You also descrive
1. 10 answers
2. asked by running.from.myself
3. 916 views
If DE = 4x+5 and GJ = 3x+25 what is DE? DE is the midpoint of the triangle.
1. 2 answers
2. asked by Lexi
3. 908 views
Is community treatment for schizophrenia effective? Think about what constitutes “community” and is it the same everywhere?
1. 0 answers
2. asked by jessica
3. 900 views
on monday, ivy crawled one inch more than tuesday. on tuesday, ivy crawled twice as much as on wednesday. on wednesday, ivy
1. 0 answers
2. asked by jayden
3. 892 views
A 6.5 g bullet leaves the muzzle of a rifle witha speed of 347 m/s. What total constant force is exerted on the bullet while it
1. 1 answer
2. asked by annie
3. 889 views
I really need this please!!!!!!! :write the equilibrium-constant expression and calculate the value of the equilibrium constant
1. 0 answers
2. asked by DAN
3. 880 views
In the word ecologists, is eco the root morpheme or ology? Are the morphemes eco, log, y, ist, s orec, ology, ist, s ? This is
1. 4 answers
2. asked by Li
3. 866 views
Which of the following gases occupy the smallest volume at STP?a) 1.000 mol carbon dioxide b) 4.032 g H2 c) 35.45 g Cl2 d) 6.022
1. 1 answer
2. asked by Renee
3. 846 views
If you happen to be trapped inside a burning building and need to jump out of the window, should you propel yourself upwards
1. 0 answers
2. asked by Anthony
3. 837 views
You have a parallel plate capacitor (with air between its plates) which is attached to a voltage source until the capacitor is
1. 0 answers
2. asked by Rebecca
3. 836 views
which of the following would translate a segment 5 units tothe left and 8 units up? a)-5 -5 and 8 8, b) -2 -4, c) -5 8 and d) -5
1. 3 answers
2. asked by ☻i♥zee☻
3. 830 views
At the end of January, Mineral Labs had inventory of 725 units, which cost $10 per unit to produce. During February the company
1. 0 answers
2. asked by Andrea
3. 827 views
Evaluate the expression belowlog 243 9
1. 1 answer
2. asked by Beth
3. 802 views
Consider the reaction of magnesium metal with hydochloric acid to produce magnesium chloride and hydrogen gas. If 3.85 mol Mg
1. 1 answer
2. asked by Jessica
3. 797 views
The fastest helicopter, the Westland Lynx, has a mass of 3.343 x 103 kg and a maximum momentum of 3.723 x 105 kg.m/s. What is
1. 1 answer
2. asked by Anonymous
3. 786 views
On December 31 of last year, Wolfson Corporation had in inventory 400 units of its products, which cost $21 per unit to produce.
1. 1 answer
2. asked by Andrea
3. 775 views
A sample of unknown gas weighs 2.96 g and occupies 750. mL at 760. mmHg and 100.°C. What is the molar mass of the unknown gas?
1. 1 answer
2. asked by bobby
3. 771 views
The radius of curvature of the path for a passenger car is 9.2m. The mass of the vehicle is 1,483kg. The coefficient of friction
1. 0 answers
2. asked by hing
3. 763 views
the textbook stresses that your writing___that is, you must have "a goal of demonstrating the truth of your conclusions and
1. 2 answers
2. asked by Anonymous
3. 760 views
In the word ecologists, is eco the root morpheme or ology? Are the morphemes eco, log, y, ist, s orec, ology, ist, s ? This is
1. 0 answers
2. asked by Nicki
3. 744 views
explain how you could use grid paper to draw a rectangle with a perimeter of 18 units
1. 2 answers
2. asked by maya
3. 714 views
Consider ∫R∫syDA, where R is the square R=[0,1]x[0,1]. Let us compute some Riemann sums. For any positive integer n we
1. 1 answer
2. asked by Bryant
3. 712 views
All of the following statements about Jaoan in the last year of the war are true except:A. Japanese retreated from
1. 2 answers
2. asked by Mary
3. 712 views
write a quadratic function and an exponential function with a base of 2 whose values at x=5 are between 50 and 64
1. 1 answer
2. asked by Anonymous
3. 700 views
The table shows the number of lemons needed to make different numbers of pitchers of lemonade24lemons 3pitchers 32lemons
1. 3 answers
2. asked by Derrick
3. 694 views
Which of the following is responsible for absolute sea-level changes?A. formation and melting of ice sheets B. erosion of land
1. 2 answers
2. asked by Astrid
3. 689 views
The period of a pendulum is the time it takes to swing from left to right and back again.The period T seconds, of a pendulum is
1. 1 answer
2. asked by beth
3. 686 views
Simplify using the exponent law. Express your answer using positive exponents only.[4x^1/3]^1/2 [9x]^-3/2 / [27x]^-1/3
1. 1 answer
2. asked by Hanu
3. 680 views
what is the solubility in mol/L of insoluble Ca3(PO4)2 (Ksp=1.00x10^-26)in a solution containing .00100 M Na3PO4?a. 2.15x10^-7
1. 3 answers
2. asked by alex
3. 679 views
If there were only cats and dogs at the pound and the ratio of cats to dogs was 3:4 if there were 105 cats, how many animals
1. 1 answer
2. asked by Cooper
3. 678 views
I really need this please!!!!!!! :write the equilibrium-constant expression and calculate the value of the equilibrium constant
1. 1 answer
2. asked by DAN
3. 676 views
Lansing Auto Pats, Inc., has projected sales of $25,000 in October , $35,000 in November, and $30,000 in December of the
1. 0 answers
2. asked by Andre
3. 675 views
Allison's 11th birthday is just around the corner. Her parents are remodeling her bedroom for her birthday. They will replace
1. 6 answers
2. asked by Derrick
3. 671 views
A bench seat is attached to a wall by hinges and supported from above by two ropes, as shown in the figure below. The seat
1. 0 answers
2. asked by Anonymous
3. 670 views
Tema Oil Refinery ( TOR ) is the only company mandated to refine crude oil in Ghana. The company has estimated that the fixed
1. 0 answers
2. asked by Ayensu
3. 669 views
Find the amount of themal energy needed to raise the temperature of 5 g of a substance from 20 c to 30 c if the specific heat of
1. 2 answers
2. asked by Jesus
3. 654 views
FIND THE RECTANGULAR PRISM.BASE AREA 56 IN 2 [SQUARED], HEIGHT 6IN. HELP!
1. 4 answers
2. asked by TONYA
3. 642 views
amount of heat generated by the combustion of 245 g of CH3OH in 2CH3OH(l)+3O2(g)=2CO2+4H2O(l)
1. 1 answer
2. asked by Jade
3. 631 views
Thank you very much. A few other things on sentences I need to check. They are really awkward to check.1) Which of the following
1. 1 answer
2. asked by Matthew
3. 630 views
Sir George Grenville, King George's Chancellor of the Exchequer, enacted the Revenue Act of 1764 to raise revenue for
1. 4 answers
2. asked by arnold
3. 629 views

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