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Questions Asked on July 2, 2013

Calculate the change in enthalpy when 52.0 g of solid chromium at 25°C and 1 atm pressure is oxidized. (H°f for Cr2O3(s) is
1. 1 answer
2. asked by Jessica
3. 2,817 views
an ungraduated mercury thermometer attached to a millimeter scale reads 22.8mm in ice and 242mm in steam at standard pressure.
1. 5 answers
2. asked by kate
3. 2,415 views
Siegel found that elderly people who owned dogs were less likely to pay visits to their doctors after upsetting events than were
1. 1 answer
2. asked by Ethel
3. 2,055 views
Two small stereo speakers A and B that are 1.40m apart are sending out sound of wavelength 33.5cm in all directions and all in
1. 1 answer
2. asked by Avantika
3. 1,975 views
Two dice are tossed. What is the probability that the sum of both dice is a prime number?This is what I have so far Presuming
1. 1 answer
2. asked by Meg
3. 1,966 views
The phrase “the heat absorbed or released by a system undergoing a physical or chemical change at constant pressure” isa.
1. 3 answers
2. asked by Jessica
3. 1,754 views
When 1.0 grams of gasoline burns, 11500 calories of heat energy are given off. If the density of gasoline is 0.66 g/ml , how
1. 2 answers
2. asked by Anonymous
3. 1,734 views
I roll a pair of fair dice and compute the number of spots on the two sides facing up. Denote this total by X. The probability
1. 1 answer
2. asked by MT
3. 1,648 views
Use the formula to solve the problems.B × In The amount that results when $6,000 is compounded at 7% annually over eight
1. 2 answers
2. asked by Desiree
3. 1,645 views
Which of the following statements is incorrect concerning the thermochemical equation below?2SO3(g)  2SO2(g) + O2(g); H°
1. 1 answer
2. asked by Jessica
3. 1,549 views
An executive flew in the corporate jet to a meeting in a city 1700 kilometers away. After traveling the same amount of time on
1. 1 answer
2. asked by Jack
3. 1,510 views
A "rocket car" is launched along a long straight track at t=0s. It moves with constant acceleration a1=3.0m/s^2. At t=2.5s, a
1. 1 answer
2. asked by Anonymous
3. 1,322 views
What percent of $9.00 is $0.64?To the nearest tenth = %
1. 2 answers
2. asked by Bria S.
3. 1,251 views
Which of the following global religions arose in India?A. Buddhism B. Jainism C. Hinduism D. Sikhism
1. 2 answers
2. asked by Anonymous
3. 1,219 views
Using the Compound Interest Table, calculate the compound amount after 5 years for an investment of $7,700 at 6% interest
1. 2 answers
2. asked by Tim
3. 1,157 views
If 25.0 mLs of 0.150M nitric acid was used, how many grams of barium carbonate would be required for complete reaction?
1. 1 answer
2. asked by Jessica
3. 1,151 views
Cobb-Douglas Production functionY=60K^1/3 L^2/3 If K=64 L=8 calculate MPL What is the equilibrium real wage in the economy
1. 0 answers
2. asked by Julie
3. 1,142 views
What is welfare payments or consumers subsidies?
1. 2 answers
2. asked by Thuli
3. 1,126 views
A test is made of H0: mean = 27 versus H1: mean < 27. The true value of the mean is 27, and H0 is rejected. Is this a Type I
1. 1 answer
2. asked by Anonymous
3. 1,123 views
If 0.5000grams of barium carbonate was reacted with 25.0mLs of 0.15M nitric acid and the gas then collected in 100mL flask at
1. 1 answer
2. asked by Jessica
3. 1,109 views
A metal crystallizes in a face-centered lattice. The radius of the atom is 198pm and the density of the element is 6.57g/cm^3.
1. 1 answer
2. asked by Mark
3. 1,094 views
a students weighs 1o quaters and finds that their total mass is 56.63 grams . what should she report as the average mass of a
1. 2 answers
2. asked by oscar
3. 1,013 views
a cube of metal has a mass of 1.45 kg. when the metal is placed into a graduated cylinder containing 356mL of water, the volume
1. 1 answer
2. asked by Colby
3. 1,008 views
A steel bar has a rectangular cross section measuring 1.000cm by 2.900cm and is 8.700m in length. A load of 189000.00N causes
1. 0 answers
2. asked by Danny
3. 1,002 views
If a man is 8 feet tall. How many meters is he?
1. 2 answers
2. asked by Linda
3. 1,001 views
In a recent year, Delaware had the highest per capita annual income with $51,803. If o=$4850, find the mean X that falls at the
1. 1 answer
2. asked by Amy
3. 1,001 views
f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?
1. 2 answers
2. asked by maths
3. 997 views
A street lamp weighs 158 N. It is supportedequally by two wires that form an angle of 107˚ with each other. What is the tension
1. 1 answer
2. asked by Lynn
3. 982 views
. Which of the following will result in a chemical change?A. Melting ice to obtain water B. Evaporating alcohol into vapor C.
1. 2 answers
2. asked by smith
3. 956 views
which one of the following schools is specifically intended for gifted and college-prep students ?
1. 1 answer
2. asked by Anonymous
3. 914 views
determine the range of each relation for the domain {-3,-2,-1,0,1,2,3}a) y=-3x+4 b)y=2x^2+5 c)y=1/x-4 d) y=-5(x+1)^2-4
1. 1 answer
2. asked by Vieanna
3. 904 views
A solid sphere rolls without slipping from rest down a plane at 4.00m long inclined at an angle of 42 degrees with respect to
1. 1 answer
2. asked by jake
3. 871 views
Find all solutions of the equation. Leave answers in trigonometric form.x^5-1024=0 I got 4(cos tehta + i sin tehta), tehta = 0,
1. 1 answer
2. asked by haley
3. 860 views
A swimming pool is 0.6m deep, 1.8m, 2m long.A. What is the volume of the pool in cubic meters? B. How many liters of water can
1. 2 answers
2. asked by Ayden
3. 829 views
the temperature at 12 noon was 10 degree Celsius above 0.decrease at the rate of 2 degree Celsius per hour until midnight at
1. 1 answer
2. asked by dev
3. 803 views
Explain whether the following statement is true or false: “The ordered pair (1,5) is the same as the order pair (5,1).”
1. 1 answer
2. asked by william
3. 795 views
Using the cumulative and/or associative laws to write two equivalent expressions of x(3y)
1. 1 answer
2. asked by Vanessa
3. 792 views
Compare the similarities and differences of the principles of communication with the major components of health communication.
1. 5 answers
2. asked by Purple
3. 747 views
A model airplane whose mass is 875 grams flies in a horizontal circle of radius 3.46 m at the end of a string which is at an
1. 1 answer
2. asked by TCC
3. 745 views
Philosophers use the general term "argument" to mean (Points
1. 1 answer
2. asked by Ashford University
3. 727 views
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final
1. 1 answer
2. asked by Anonymous
3. 725 views
What is the current status of campaignfinance reform?
1. 0 answers
2. asked by angela
3. 702 views
A 13,900 kg truck is moving at 23.5 m/s on a mountain road when the brakes are applied. The brakes FAIL!! Fortunately, the
1. 0 answers
2. asked by justin
3. 665 views
A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m. When the ride is turning at a constant rate, the child’s speed
1. 1 answer
2. asked by ODU
3. 653 views
15divided by 1 and 2 3rds
1. 1 answer
2. asked by rajean
3. 646 views
A family took a trip. They spent $90.71 for gasoline, $153.00 on meals, $197.00 on amusements, and $73.38 on miscellaneous
1. 1 answer
2. asked by Bria S.
3. 618 views
Using the equipment below, explain how to prepare a 0.00052M HCl solution from a reagent bottle containing 0.13M HCl using only
1. 1 answer
2. asked by Jill
3. 605 views
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final
1. 1 answer
2. asked by Anonymous
3. 596 views
A 13,900 kg truck is moving at 23.5 m/s on a mountain road when the brakes are applied. The brakes FAIL!! Fortunately, the
1. 1 answer
2. asked by ODU
3. 589 views
An airplane traveled a distance d in t hours, where r>1, and arrived one hour late. The airplane would have arrived on time if
1. 1 answer
2. asked by Grace
3. 587 views
here is what I need to do; however my problem is I can not find where I can download the financial information on any
1. 1 answer
2. asked by Patiance
3. 580 views
A 28 foot ladder just reaches the top of a building and forms an angle at 44. 4 degrees with the wall of the building. How many
1. 1 answer
2. asked by Jeanette
3. 578 views
Solve the equation. Express your answer in trigonometric form.x^5-11=0 I know the answer is: 11^1/5(cos α + i sin α) for α =
1. 2 answers
2. asked by hello
3. 573 views
in the call of the wild what valiant, tragic figure among the dog must finally be put down for the good of the lives of the team
1. 1 answer
2. asked by Anonymous
3. 561 views
n 1980 (before the era of in-vitro fertilization), there were 3,612,258 births in the United States (according to the U.S.
1. 1 answer
2. asked by Karthik
3. 550 views
Determine the number of triangles with the given parts.b=24 c=29 B=40deg I got 1
1. 1 answer
2. asked by Helay
3. 545 views
Compare the similarities and differences of the principles of communication you learned in Week One with the major components of
1. 1 answer
2. asked by Purple
3. 544 views
Write the complex number in the form a=bi√(3)(cos π/3 + isin π/3)
1. 1 answer
2. asked by yes
3. 543 views
The incomes in a certain lg. population of college teachers have a normal distribution with a mean of $35,000 and st. dev. of
1. 3 answers
2. asked by MT
3. 517 views
Find the smallest n such that for any prime p, at least 20 numbers 1,2, ..., n are quadratic residues not modulo p.k is
1. 0 answers
2. asked by maths
3. 510 views
Bulb A is 100mL and contains Helium at 1atm.Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a
1. 3 answers
2. asked by Kayla
3. 501 views
Most common early childhood program in the united states
1. 1 answer
2. asked by Ann
3. 492 views
An airplane climbs at a rate of 66.8 ft per min. It descends at twice the rate it climbs. Assuming it descends at a constant
1. 1 answer
2. asked by Brandi
3. 489 views
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final
1. 1 answer
2. asked by Anonymous
3. 486 views
i am a 4 digit decimal. the sum of my digits is divisible by 4. the square of my tenths equals my hundredths place. my
1. 1 answer
2. asked by kich
3. 482 views
Nearly ________ movement in the body is the result of muscle contraction.A. All B. 50% of all C. 10% of all D. None of the above
1. 1 answer
2. asked by annias
3. 475 views
A car tavels a distance of 100 m with a constant acceleration and average velocity of 20 m per second .The final velocity
1. 1 answer
2. asked by spoorthi.p
3. 471 views
After seeing how she interacts with the little Maltese dog next door, Ellie’s parents decide to get her a dog too. Ellie’s
1. 1 answer
2. asked by Anonymous
3. 466 views
The amygdala has only a few seconds to determine if an event is dangerous or not and make an initial decision for approach or
1. 2 answers
2. asked by Anonymous
3. 461 views
A uniform bar 1.000 meters in length and having a cross sectional area of 10.000cm^2 is subjected to a loading of 5750.000
1. 0 answers
2. asked by Danny
3. 455 views
if a force of 80N extends a spring of natural length 8m by 0.4m what will be the length of the spring when the applied force
1. 1 answer
2. asked by ikye
3. 453 views
Using the integers 2,3,4,5,How many 3-digit odd numbers less than 300 can be formed if no repetition of digits is allowed?
1. 1 answer
2. asked by Anonymous
3. 451 views
To determine the compound amount of an investment of $10,000 with an interest rate of 6% compounded monthly after 4 years
1. 0 answers
2. asked by Tim
3. 450 views
In the experiment of buret calibration, what is the importance of having total buret correction? And does the density of the
1. 0 answers
2. asked by xavier
3. 446 views
What is the factor of safety of a steel hanger having an ultimate strength of 630.000MPa and supporting a load of 65000.000N.
1. 1 answer
2. asked by Danny
3. 443 views
A 5 liter vessel contains 2g of hydrogen and 28g of nitrogen at 27c. Find the total pressure of the mixture?
1. 1 answer
2. asked by mirza
3. 437 views
i need to write this algabraically and graph: a runner leaves his house and runs for 30 minutes at 8mph, he rests for 5 minutes
1. 2 answers
2. asked by kimberlee
3. 424 views
what are some interdisciplinary aspect of aginghow have the percentage of the American workforce changed and will continue to
1. 1 answer
2. asked by Anonymous
3. 419 views
The Ultimate strength of a round steel rod is 630.000MPa. If a factor of safety of 5.000 is required, what is the maximum
1. 1 answer
2. asked by Danny
3. 406 views
when expanding (x+y)^8, either an x or a y from each of the eight factors is used in the product. That means that x^3y^5 is
1. 1 answer
2. asked by Anonymous
3. 401 views
Showing all work convert 315m to dam
1. 2 answers
2. asked by Kala
3. 399 views
What would be the compound amount after 19 years on an investment of $42,000 with an 11% interest rate compounded annually?
1. 3 answers
2. asked by Tim
3. 394 views
The Ultimate strength of a round steel rod is 630.000MPa. If a factor of safety of 5.000 is required, what is the maximum
1. 1 answer
2. asked by Danny
3. 392 views
Bulb A is 100mL and contains Helium at 1atm.Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a
1. 1 answer
2. asked by Kayla
3. 389 views
population mean of 110 and SD of 6, what is likelihood of having score of 100 0r lower
1. 2 answers
2. asked by carole
3. 384 views
give the GCF of each set of numbers and monomial1. 16,60 2. 52,84
1. 0 answers
2. asked by nagisaram mae
3. 382 views
how to caculate using a ruler to measurethe thickness of a 25 pages in a textbook
1. 0 answers
2. asked by Diana
3. 380 views
can someone please help me with this questionWhy do you think Martin Luther King speech begins with a discussion of American
1. 1 answer
2. asked by akana
3. 377 views
scientific interpretation of two toy cars having bar magnet on the roof .what happen when close to each other from same and
1. 0 answers
2. asked by veronica
3. 376 views
how to caculate using a ruler to measurethe thickness of a 25 pages in a textbook
1. 1 answer
2. asked by Diana
3. 376 views
The Chicago Art Museum's Renaissance display consists of four hallways bordered around a square courtyard. A single guard is
1. 0 answers
2. asked by Nick
3. 371 views
What is the largest integer less than 1000 that can be represented as a^3+b^3+c^3 for some integers a,b,c, such that a+b+c=0.
1. 1 answer
2. asked by anonymous
3. 370 views
solve the triangle.B=77.0deg b=13.95 a=20.6 I got A=38.5deg C=64.5deg c=34.55
1. 1 answer
2. asked by yes
3. 369 views
What is the proof of theorem 2.23, where (b/a)+(d/c)=[(bc)+(ad)]/(ac). Thank you :)
1. 1 answer
2. asked by Rob
3. 356 views
find all solutions of equation in [0, 2pi)2 (sec x)^2 + (tan x)^2 -3 = 0
1. 1 answer
2. asked by Help
3. 337 views
15divided by 1 and 2 3rds
1. 1 answer
2. asked by rajean
3. 293 views
Thank you
1. 1 answer
2. asked by Anonymous
3. 253 views

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