Questions Asked on April 1, 2010

A gas absorbs 45 kJ of heat and does 29 kJ of work. Calculate the change in energy.The answer is 16 kJ, but I don't understand
1. 4 answers
2. asked by Jake
3. 7,987 views
An airplane's velocity with respect to the air is 580 miles per hour, and it is heading N 60 degrees W. The wind, at the
1. 4 answers
2. asked by Hannah
3. 6,631 views
Three forces with magnitudes of 70 pounds, 40 pounds, and 60 pounds act on an object at angles of -30 degrees, 45 degrees, and
1. 3 answers
2. asked by Hannah
3. 5,477 views
The perimeter of the small square is one-third the perimeter of the large square. What are the side lengths of the squares?small
1. 8 answers
2. asked by rebecca
3. 4,911 views
CH4 + 2 Cl2--> CH2Cl2 + 2HClCl-Cl bond energy: 242 kj/mole 1. Calculate the amount of energy (Joules) needed to break a single
1. 4 answers
2. asked by Anonymous
3. 3,245 views
The mole fraction of CO2 in a certain solution with H2O as the solvent is 3.6 × 10−4. Themolality of CO2 in this solution is
1. 2 answers
2. asked by nnn
3. 2,123 views
(1) Which of the following clusters of orbitals would form the shape trigonal bipyramidal and would also be possible within the
1. 1 answer
2. asked by Kirsten
3. 2,072 views
Which of the following electron configurations represent an excited state?1s22s22p1 1s22s22p63s2 1s1 1s22s12p63s1 1s12s22p63p3
1. 1 answer
2. asked by Megan
3. 1,929 views
In a house the temperature at the surface of a window is 25 ¡ãC. The temperature outside at the window surface is 5.0 ¡ãC.
1. 2 answers
2. asked by firous
3. 1,801 views
The value of pKb for the base ethylamine (CH3CH2NH2) is 3.19 at 25°C, while the pKa for formic acid(HCO2H) is 3.74, also at
1. 2 answers
2. asked by mandy
3. 1,758 views
"Margaret has found that by a proper choice of gears she can steadily increase her speed on her bike. One day she sets out and,
1. 4 answers
2. asked by Stuck
3. 1,735 views
Complete the square for the binomial. Then factor the resulting perfect square trinomial.x^2 -2/11X
1. 1 answer
2. asked by Anonymous
3. 1,678 views
Find the cross product of the unit vectors.j X k My answer was -i. Am I correct?
1. 1 answer
2. asked by Abbey
3. 1,474 views
how can you fill a flask with pure oxygen without mixing it with air
1. 1 answer
2. asked by Maria
3. 1,460 views
When 442 mg of NO2 is confined to a 150. mL reaction vessel and heated to 300°C, it decomposes by a second-order process. In
1. 1 answer
2. asked by Val
3. 1,452 views
This table shows the number of labor hours required to produce a digital camera and a bushel of wheat in China and South Korea.D
1. 1 answer
2. asked by Merna
3. 1,444 views
A statistics practitioner formulated the following hypothesis: H0 : ¦Ì = 200 against H1 : ¦Ì < 200 andlearned that x = 190 n
1. 1 answer
2. asked by Yumna
3. 1,278 views
The triangular numbers are the numbers 1, 3, 6, 10, 15, . . .; the square numbers are the numbers1, 4, 9, 16, 25, . . . The
1. 0 answers
2. asked by jeep
3. 1,271 views
Paula Patient doesn't want her violent boyfriend to know she's getting an aboution, so she asks Dr. bob to send all
1. 1 answer
2. asked by Daliz
3. 1,258 views
I was wondering if these are correct.1. The patient had a cystectomy. What does the root of this word mean? A. Kidney B. Bladder
1. 1 answer
2. asked by B B
3. 1,245 views
How many moles of SO2 are required to make 125 mol CS2How many moles of carbon monoxide form at the same time that 0.255 mol CS2
1. 3 answers
2. asked by julia
3. 1,234 views
If sales grew 20% from 10,000,000 to 12,000,000 and the discresinary financing needs is 500,000. What percent of sales grown
1. 0 answers
2. asked by Amie
3. 1,216 views
A baseball is thrown at 88 mi/h and with a spin rate of 1500 rev/min. If the distance between the pitcher’s point of release
1. 1 answer
2. asked by Sandhya
3. 1,215 views
solve the problem 2xcubed-17xsquared+31x+20 given that 5 is a zero of f(x)= 2xcubed-17xsquared+31x+20you can use lobng division
1. 1 answer
2. asked by Arielt -Help now fast due tommorow
3. 1,211 views
In the 1968 Olympic Games, University of Oregon jumper Fosburyintroduced a new technique of high jumping called the "Fosbury
1. 1 answer
2. asked by phys
3. 1,210 views
Which Latin base means to see?a.CLUD b.PLEN c.VOC- d.VIS-
1. 1 answer
2. asked by larry
3. 1,166 views
If 50.0mL of 1.60M HCl was added to 50.0mL of 1.80M NaOH, calculate the molarity of the resulting NaCl solution. (Hint:
1. 6 answers
2. asked by Jen
3. 1,152 views
Which financial ratios would you consider most useful? Would these ratios be different than the ones you would consider useful
1. 0 answers
2. asked by samuel
3. 1,143 views
Show that there are no positive integers n for which n4 + 2n3 + 2n2 + 2n + 1 is a perfectsquare. Are there any positive integers
1. 1 answer
2. asked by help
3. 1,114 views
A ship carries exactly 10 different signal flags. If eachpossible combination and ordering of 4 of these flags connotes a
1. 3 answers
2. asked by Ty
3. 1,102 views
Michelle is enjoying a picnic across the valley from a cliff. She is playing music on her radio (assume it to be an isotropic
1. 1 answer
2. asked by anna
3. 1,093 views
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation
1. 1 answer
2. asked by ujkk
3. 1,083 views
An airplane's velocity with respect to the air is 580 miles per hour, and it is heading N 60 degrees W. The wind, at the
1. 2 answers
2. asked by Hannah
3. 1,079 views
Suppose that an object attached to a coiled spring is pulled down a distance of 5 inches from its rest position and then
1. 0 answers
2. asked by hey
3. 1,054 views
The mean systolic blood pressure of adult males is normallydistributed with a mean of 138 (millimeters of mercury) and a
1. 1 answer
2. asked by P-Dub
3. 1,029 views
The game of dots is played by rolling a fair die andreceiving $1 for each dot showing on the top face of the die. What cost
1. 1 answer
2. asked by Moonpie_17
3. 1,027 views
1-show that 1-x/2 is the tangent line approximation to 1/ sqrt of 1+x near x=02-what is the local linearization of e^x^2 near
1. 1 answer
2. asked by MILEY
3. 1,010 views
Why is it important to use liquids with relatively lower boiling points when using the Dumas method?
1. 1 answer
2. asked by Help
3. 1,004 views
2}select the best definition for the word senile.a.pre-eminent b.priority c.old age d.clear
1. 4 answers
2. asked by catherine
3. 998 views
can someone help me with a website to creat a timeline tracking the following major theme/paragism shifts in American history
1. 3 answers
2. asked by Dellaine
3. 996 views
for medical records how important should corrections be date and time stamped?
1. 1 answer
2. asked by Chira
3. 986 views
If 50.0mL of 1.60M HCl was added to 50.0mL of 1.80M NaOH, calculate the molarity of the resulting NaCl solution. (Hint:
1. 2 answers
2. asked by Michelle
3. 984 views
To what extent was the Progressive era (1870 - 1920) a unified movement of reform and change in American society? How
1. 2 answers
2. asked by Anonymous
3. 951 views
how many moles of product are formed in the reaction?2Al(s),3Cl2(g)--->2AlCl3(s) please help me!! thank you so much
1. 0 answers
2. asked by caroline
3. 948 views
Let’s agree to say that a positive integer is prime-like if it is not divisible by 2, 3, or 5. Howmany prime-like positive
1. 0 answers
2. asked by chicken
3. 936 views
1}The Romen numeral M represents:a.50 b.100 c.500 d.1000 2}The Roman numeral XLIX is written in Arabic numerals as: a.54 b.69
1. 4 answers
2. asked by catherine
3. 920 views
Calculate the work done when 70.0 g of tin are dissolved in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior.Sn(s) +
1. 0 answers
2. asked by amy
3. 920 views
***EXTRA CREDIT*** Figure 8-33 shows a 1.50 kg block at rest on a ramp of height h. When the block is released, it slides
1. 1 answer
2. asked by Kelly
3. 916 views
The term assimilation refers to when :A.*** a word is borrowed into English through different venues B. A latin adj. becomes an
1. 1 answer
2. asked by henry
3. 914 views
Find a positive integer m such that1 2m is a perfect square and 1 3m is a perfect cube. Can you find a positive integer n for
1. 1 answer
2. asked by groove
3. 902 views
An 85.0-N backpack is hung from the middle of an aluminum wire, The degree of hung of the wire is 3 degree. The temperature of
1. 0 answers
2. asked by firous
3. 884 views
According to the Journal of Irreproducible Results, any obtuse angle is a right angle! Here istheir argument. Given the obtuse
1. 4 answers
2. asked by help
3. 876 views
1-Suppose that the fuel comsumption of cars for the same model is normally distributed. A random sampleof ten new cars of the
1. 0 answers
2. asked by Judy and group
3. 871 views
A harpsichord string of length 1.60 m and linear mass density 25.0 mg/m vibrates at a (fundamental) frequency of 450.0 Hz.(a)
1. 0 answers
2. asked by anna
3. 860 views
6. The squares of an infinite chessboard are numbered as follows: in the first row and first columnwe put 0, and then in every
1. 0 answers
2. asked by trying
3. 849 views
What are the odds in favor of drawing a spade and a heart without replacement from an ordinary deck of 52 playing cards?
1. 1 answer
2. asked by Tyga
3. 842 views
The tail of a giant kangaroo is attached by a giant rubber band to a stake in the ground. Aflea is sitting on top of the stake
1. 2 answers
2. asked by tango
3. 827 views
The hydrolysis of sucrose (C12H22O11) produces fructose and glucose (each C6H12O6). Two mechanisms are proposed:I) Step 1:
1. 0 answers
2. asked by Val
3. 823 views
2 = 8 (s + 7)2 = 8s + 56 56 - 2 = 8s 54 = 8s /8 /8 6.75 = s did i do this question right?
1. 4 answers
2. asked by rebecca
3. 815 views
A uniform 2.00-m-long stick is raised at an angle of 30° to the horizontal above a sheet of ice. The bottom end of the stick
1. 1 answer
2. asked by Sandhya
3. 805 views
8-A bakery stated that the average number of breads sold daily is 3000. An employee thinks that the actualvalue might differ
1. 1 answer
2. asked by Judy and group
3. 795 views
At 300.K and 1.00 atm, assume that 25 mL of NO gas reacts with 22 mL ofoxygen gas and excess water to produce nitric acid
1. 3 answers
2. asked by Claire
3. 795 views
C(X)= 2.7X +4.7 SQRT OF [400^2 + (780-X)^2]
1. 0 answers
2. asked by MILEY
3. 794 views
16-To test the hypothesis H0 : ì = 100 against H1 : ì > 100, a statistics practioner randomly sampled Tobservations and found
1. 1 answer
2. asked by Judy and group
3. 789 views
Two strings, each 19.5 m long, are stretched side by side. One string has a mass of 78.0 g and a tension of 180.0 N. The second
1. 0 answers
2. asked by lisa
3. 787 views
1-show that 1-x/2 is the tangent line approximation to 1/ sqrt of 1+x near x=02-what is the local linearization of e^x^2 near
1. 0 answers
2. asked by piper
3. 781 views
A weight attached to a spring is pulled 4 inches below the equilibrium position. Assuming that the frenquency of the system is
1. 0 answers
2. asked by america
3. 779 views
Who is Ms. Kim?1. She was Bora's teacher last year. 2. She is Bora's old teacher from last year. 3. She is Bora's teacher in
1. 3 answers
2. asked by rfvv
3. 776 views
According to the Journal of Irreproducible Results, any obtuse angle is a right angle! Here istheir argument.
1. 1 answer
2. asked by help
3. 772 views
12- The number of cars sold annually by used car salespeople is normally distributed with a standard deviationof 19.22. A random
1. 0 answers
2. asked by Judy and group
3. 769 views
*The Nernst Equation and pH*Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (low
1. 1 answer
2. asked by Sarah
3. 761 views
HOW MANY GRAMS OF ICE AT -5.2 DEGREES CELSIUS CAN BE COMPLETELY CONVERTED TO LIQUID AT 6.4 CELSIUS DEGREES IF THE AVAILABLE HEAT
1. 1 answer
2. asked by LEBOHANG
3. 760 views
A. lower than the freezing point of the solvent alone because higher temperature is required to accelerate solvent molecular
1. 1 answer
2. asked by phys
3. 754 views
Task:Read the following two scenarios and explain for each scenario, all the torts that have been committed, any arguments that
1. 0 answers
2. asked by Karen
3. 749 views
A Picture is Worth a Thousand Words: Create a collage that depicts a scene or scenes from the play, HAMLET. Use pictures and
1. 1 answer
2. asked by Ryan
3. 735 views
C(X)= 2.7X +4.7 SQRT OF [400^2 + (780-X)^2]
1. 3 answers
2. asked by MILEY
3. 729 views
1. I am in the video media club.We learn how to make videos and upload them on the Internet. 2. I am in the print media yp club.
1. 1 answer
2. asked by rfvv
3. 728 views
X(g) + 2 Y(g) + 2 Z(g) -->3 M(g) + 2 N(g)I've already found the orders for the following to be: X is 2nd, Y is 1st, Z is 0 and
1. 0 answers
2. asked by Val
3. 727 views
6 over x to the 10th times x to the 17th over 15
1. 1 answer
2. asked by bob
3. 723 views
Give the vertex and axis of symmetry of the quadratic function.f(x) = x^2 - 2x - 8
1. 0 answers
2. asked by Anonymous
3. 723 views
In Figure 8-34, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is
1. 1 answer
2. asked by Kelly
3. 717 views
1. Which club do you go to?I go to a quilt club. 2. Which club do you belong to? I belong to a broadcasting club. 3. Which club
1. 3 answers
2. asked by rfvv
3. 711 views
On a TV game show, the contestant is asked to select adoor and then is rewarded with the prize behind the door selected. If the
1. 3 answers
2. asked by Tyga
3. 707 views
You observe an arti cial satellite orbiting the earth and estimate it is atan altitude h = [03] km above the earth's surface and
1. 1 answer
2. asked by Adrianne
3. 700 views
A stained glass window is composed of 20 triangular sections, each with sides 6, 8, and 7inches. Find the total are of the
1. 0 answers
2. asked by america
3. 700 views
Critique this paragraph:Wife beating affects a woman both physically and emotionally. Having little or no charge of financial
1. 0 answers
2. asked by Tasha
3. 694 views
Have writers block. Need help with Julia Alvarez poem!?I have to write a 1000 word analysis of the Julia Alvarez poem "Ironing
1. 2 answers
2. asked by Josh
3. 689 views
how do you find an area for a pentagonal prism
1. 2 answers
2. asked by person
3. 680 views
For the book into thin airYour reaction to the 5 sections. Describe the section. But don't get too caught up in telling the
1. 3 answers
2. asked by Ryan
3. 679 views
The temperature of 100.0 mL of water was raised from 26.7 degrees C to 62.3 degrees C. How much heat in calories was added to
1. 2 answers
2. asked by Ally
3. 676 views
thanks for your helpSelect the word which has its etymological meaning to settle a payment and has the current meaning to supply
1. 4 answers
2. asked by henry
3. 676 views
phyllis has 5 1/2 pounds of candy to use to make goody bags for a birthday party. if she puts 1/4 of a pound of candy in each
1. 1 answer
2. asked by dominick
3. 673 views
My thesis statement for my synthesis essay to connect The Grapes of Wrath, The Great Gatsby and The Death of a Salesman is "It
1. 0 answers
2. asked by Emily
3. 665 views
The perimeter of the small square is one-third the perimeter of the large square. What are the side lengths of the squares?small
1. 1 answer
2. asked by rebecca
3. 647 views
2A-->B+C given that the initial concentration of A is .022M and that at 69 s, the concentration of B increases to .0095M, what
1. 0 answers
2. asked by Val
3. 647 views
I really need someone to explain this question to me please!Brainstorm ideas for alternative funding for the program you
1. 1 answer
2. asked by So confused
3. 643 views
are these answers right?1. �ã-121 = i�ã11 2. -2�ã-144 = 2i�ã144 = 2i*12=24i 3. �ã-75 = i=�ã75 = i�ã5sq*3 = 5i�ã3
1. 6 answers
2. asked by teri
3. 640 views
At what point during the course of treatment of a new patient should notice of use and disclosure of health information,
1. 2 answers
2. asked by Daliz
3. 640 views
Let U = {xƒ}x is an American}, C = {x/x is a smoker}, D = {xƒ}x has a health problem}, E = {xƒ}x is a male} Describe a person
1. 1 answer
2. asked by Jamie
3. 637 views
The tires of a car have 25in diameter to the nearest tenth, how many revolutions does each tire make in a mile
1. 1 answer
2. asked by iris
3. 637 views

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