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Questions Asked on November 21, 2010

What is the only positive ion found in H2SO4(aq)?a. ammonium ion b. hydronium ion c. hydroxide ion d. sulfate ion The answer's
1. 2 answers
2. asked by danny123
3. 9,134 views
if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the mass?i really need like, step by step help
1. 2 answers
2. asked by michelle quendarsv
3. 6,755 views
an antifreeze solution is made by mixing ethylene glycol (density= 1116 kg/m^3) with water. suppose that the specific gravity of
1. 2 answers
2. asked by kai
3. 6,133 views
Water is discharged from a pipeline at a velocity v(in ft/sec) given by v=1240p^(1/2), where p is the pressure (in psi). I f the
1. 2 answers
2. asked by jahil
3. 5,088 views
The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $17 and 35 per share.What is the
1. 1 answer
2. asked by Barbara
3. 4,494 views
what is the pH of a solution prepared by adding 0.50 mol KOH to 1.0 L of 0.30 M HNO3?
1. 3 answers
2. asked by jj re
3. 3,039 views
In ΔXYZ, ∠X=47° and ∠Y=29°. ∠XWZ=90° and XY=3.9. Find the length of WY to the nearest 100th.
1. 1 answer
2. asked by calous
3. 2,726 views
Sandra has 8 coins that equal 87 cents what coins does she have
1. 3 answers
2. asked by McKenzie
3. 2,636 views
At STP, a 7.49-gram sample of an element has a volume of 1.65 cubic centimeters. The sample is most likely (1) Ta (3) Te (2) Tc
1. 4 answers
2. asked by danny123
3. 2,589 views
what impulse is needed to stop a 45 g mass traveling at 42 m/s?
1. 2 answers
2. asked by Jenn
3. 2,459 views
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour
1. 4 answers
2. asked by Barbara
3. 2,432 views
Sodium oxide, reacts with water to give NaOH. A) Write a balance equation? B)What is the pH of the solution prepared by allowing
1. 2 answers
2. asked by Ann
3. 2,420 views
Lake Point Tower in Chicago is the tallest apartment building in the United States (although not the tallest building in which
1. 2 answers
2. asked by Sonny
3. 2,420 views
A pitched ball with a mass of 1 kg reaches a catcher's glove traveling at a velocity of 28 m/s. How much momentum does the ball
1. 1 answer
2. asked by Walter
3. 2,418 views
determine the total amount of energy required to heat 25g of ice at -18 C to steam at 125 C
1. 1 answer
2. asked by laura
3. 2,316 views
Are the following isotonic, hypotonic or hypertonic.1) H2O 2 0.9% NaCl (isotonic) 3) 10% glucose 4) 3% NaCl 5) 0.2% NaCl
1. 1 answer
2. asked by Terry
3. 2,056 views
if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the mass?i really need like, step by step help
1. 3 answers
2. asked by michelle quendarsv
3. 1,899 views
The motion of a particle connected to a spring is described by x=10cos(πt). At what time (in s) is the potential energy equal
1. 2 answers
2. asked by Jesse
3. 1,888 views
What is the most precise name for each space figure that has the given properties.1. four lateral faces that are triangles? 2.
1. 1 answer
2. asked by Edith
3. 1,882 views
Which of the following solutions should be used when titrating a 25.00mL sample of CH3COOH that is approximately 0.1 M?a.) 0.150
1. 1 answer
2. asked by jj re
3. 1,837 views
A father's age is 3 times his son's age. Sum of their ages is 44 years. Find their ages.
1. 2 answers
2. asked by Ruquaya
3. 1,800 views
A crate of mass 20 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the
1. 3 answers
2. asked by Warren
3. 1,790 views
Which solution contains more acid, 50ml of a 0.20 N HCL solution or 50 ml of a 0.20 N acetic acid solution? Which has a higher
1. 1 answer
2. asked by Terry
3. 1,735 views
The reaction,C2H5Br --> C2H4 + HBr, has a rate constant k = 0.0000100 s-1 at 363 °C and k = 0.000479 s-1 at 427 °C. What is
1. 4 answers
2. asked by Confused
3. 1,694 views
Three gases (8.00 of methane, 18.0 of ethane, and an unknown amount of propane, were added to the same 10.0-L container. At 23.0
1. 5 answers
2. asked by Jamie
3. 1,588 views
A .25 kg skeet is fired at an angle of 30 degrees to the horizon with a speed of 30 m/s, When it reaches the maximum height, a
1. 1 answer
2. asked by caroline
3. 1,530 views
What is the most precise name for each space figure that has the given properties.1. four lateral faces that are triangles? 2.
1. 2 answers
2. asked by Edith
3. 1,445 views
1. LCM of 15x^7 and 45x^72. Marla can shovel the driveway in 60min and Bill can do it in 45min how long would it take them to do
1. 3 answers
2. asked by Anonymous
3. 1,410 views
A normal population has a mean of 21 and a standard deviation of 5.Compute the z value associated with 24 What proportion of the
1. 1 answer
2. asked by Barbara
3. 1,399 views
The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on
1. 3 answers
2. asked by hy
3. 1,386 views
Thank you very much for your corrections. Here are some more sentences for you to check.1)The narrator is the voice who tells
1. 1 answer
2. asked by Franco
3. 1,358 views
Cobalt-60 is a radioactive isotope used to treat cancers. A gamma ray emitted by this isotope has an energy of 1.33 MeV (million
1. 1 answer
2. asked by Rachel
3. 1,292 views
a steel rod when measured with a zinc scale both being at 25 degree Celsius appear to be one meter long.if the zinc scale is
1. 2 answers
2. asked by sanjeet
3. 1,290 views
The area of a circular swimming pool is 225pi square meters. What is the circumference of the swimming pool? Leave your answer
1. 1 answer
2. asked by Miley
3. 1,257 views
Please let me know how you would approach the gas law problem. Here goes:If the pressure exerted on the gas in a weather ballon
1. 1 answer
2. asked by Cliff
3. 1,250 views
Find the scalar product of the vectors in Figure P7.8, where è = 117° and F = 31.0 N.y | | ___| Unk Angle----> / |
1. 2 answers
2. asked by Sierra
3. 1,238 views
The volume V(t) of air (in cubic inches) in an adult's lungs t seconds after exhaling is approximately. (Do not use mixed
1. 1 answer
2. asked by Max
3. 1,232 views
you have 95 coins that total $10.75. the coins consist of only quarters and nickels. how many of each coin do you have?
1. 2 answers
2. asked by mike
3. 1,219 views
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas.
1. 4 answers
2. asked by hannah
3. 1,216 views
write a balanced equation for:Gaseous carbon dioxide and liquid water react to produce aqueous glucose (C6H12O6) and oxygen gas.
1. 4 answers
2. asked by hannah
3. 1,193 views
a 18.0kg sled being pulled across horizontal surface at constant velocity. pulling force has magnitude of 82.0N and is directed
1. 1 answer
2. asked by hy
3. 1,176 views
A 70 kg man jumps 1.00m down onto a concrete walkway. His downward motion stops in .02 seconds. If he forgets to bend his knees,
1. 1 answer
2. asked by nina
3. 1,170 views
Have the electrons been added to this diagram from lowest to highest energy states? Yes or No? Why?This is an orbital diagram: I
1. 3 answers
2. asked by Sarah
3. 1,119 views
i need help to unscramble these spanish words!!! srate,qeroiu,vosa,risvait,rpracmo
1. 5 answers
2. asked by Rudi
3. 1,108 views
A bank officer wants to determine the amount of the average total monthly deposits per customer at the bank. He believes an
1. 0 answers
2. asked by Jing Sun Q.
3. 1,108 views
Okay, for English 12 im doing a semiar on Yann Martel's book, "Life of Pi"The topic of my essay is "martel depiction of Canada
1. 3 answers
2. asked by Andy
3. 1,106 views
i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i
1. 1 answer
2. asked by ash
3. 1,106 views
When a vehicle is parked in the sunlight on a hot summer day, the temperature inside can approach 55 deg C. one company has
1. 0 answers
2. asked by Rayana
3. 1,090 views
The molar solubility of lead iodide is 1.45*10^-3M at 20 degrees C and 6.5*10^-3M at 80 degrees C .What are the values of delta
1. 0 answers
2. asked by Tal
3. 1,071 views
Suppose the USA and Canada are considering to trade. Assume there are only two goods in the economy: wheat and corn. The table
1. 0 answers
2. asked by roxanne
3. 1,066 views
A car moving at 8 m/s crashes into a barrier and stops in 0.050 s. There is a 19-kg child in the car. Assume that the child's
1. 1 answer
2. asked by Preston
3. 1,054 views
you are a painter, and the price of a gallon of paint increases from $3.00 a gallon to $3.50 a gallon. your usage of paint drops
1. 0 answers
2. asked by pam
3. 1,050 views
What is the rate of the following reaction (M/s) if the rate constant for the reaction is 0.500 L•mol-1•s-1 and the
1. 1 answer
2. asked by Confused
3. 1,038 views
I'd just like to know which would be the most suitable pronoun to be used in the following sentence.1) The choice of this
1. 1 answer
2. asked by Franco
3. 1,009 views
On the graph of the equation 8x – 3y = 24, what is the value of the y-intercept?
1. 1 answer
2. asked by Rayniya
3. 968 views
1. Subtract and simplify18/y-8 - 18/8-y 2. subtract simplify if possible v-5/v - 7v-31/11v 3. Simplify by removing factors of 1
1. 2 answers
2. asked by Anonymous
3. 960 views
What does orgaizational leadership have to do with the WV mining accident?
1. 1 answer
2. asked by bobbi
3. 952 views
To which graph does the point (–1, 3) belong?
1. 2 answers
2. asked by Rayniya
3. 949 views
How much heat is evolved when 5.00g of propane C3H8 burns completely.I got the formula down, now what? C3H8 + 5O2 -> 3CO2 + 4H2O
1. 0 answers
2. asked by Anonymous
3. 939 views
I fyou had only 12g of KOH remaining in a bottle, how many ml of 12.8%(w/v) solution could you prepare? (in mL)How many ml of
1. 2 answers
2. asked by nicole
3. 938 views
what would be the space figure of a shoe box?
1. 1 answer
2. asked by Edith
3. 934 views
habitually listening to loud music through headphones can result in loss of hearing in what part of the ear?
1. 6 answers
2. asked by olive
3. 924 views
I am confused with what they are wanting me to do. It says write a 1500 to 1750 word essay in which you discuss implications of
1. 1 answer
2. asked by kristina
3. 910 views
Evolutionary theories often emphasize that humans have adapted to their physicalenvironment. One such theory hypothesizes that
1. 0 answers
2. asked by student
3. 908 views
The orbital diagram shown here has some mistakes in it. Indicate which of the following rules and principles were not observed
1. 5 answers
2. asked by Sarah
3. 905 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7
1. 2 answers
2. asked by TAW
3. 897 views
If the ball is released from rest at a height of 0.64 m above the bottom of the track on the no-slip side, what is its angular
1. 1 answer
2. asked by Sarah
3. 897 views
I got through the first part easily, got -352.9kJHaving trouble with the second part "The meals-ready-to-eat (MREs) in the
1. 1 answer
2. asked by Anonymous
3. 880 views
We have to find the synonym of the word in bold. I have a few choices but I'm stuck between two..The words in bold are incumbent
1. 4 answers
2. asked by Leanna
3. 876 views
Heya, i am supposed to come up with a thesis for my scarlet letter essay that i am doing for my higher level english class, and
1. 2 answers
2. asked by Anonymous
3. 876 views
The rate of the following reaction:Radioactive decay of 90Sr, is characterized by the rate constant k = 0.024 year-1. What is
1. 1 answer
2. asked by Confused
3. 875 views
As a healthcare manger what two strategies would you consider to help build internal and external relationships that could
1. 2 answers
2. asked by Mary
3. 870 views
An airplane flies due north at 160 km/h with respect to the air. There is a wind blowing at 80 km/h to the east relative to the
1. 1 answer
2. asked by Daniel
3. 869 views
If 270. mL of 0.08089 M aqueous Pb(NO3)2 and 710. mL of 0.05493 M aqueous Na+ are reacted stoichiometrically according to the
1. 1 answer
2. asked by Confused
3. 861 views
A 200 g ball is lifted upward on a string. It goes from rest to a speed of 2.0 m/s in a distance of 1.0 m. What is the tension
1. 2 answers
2. asked by nona
3. 860 views
an experiment consists of 4 tosses of a coin.denoting the outcomes HHTH,THTT,..and assuming that all 16 outcomes are equally
1. 1 answer
2. asked by ali
3. 845 views
Your reviewing reimbursement for a medical surgical craniotomy case. The case falls into DRG 1,which has a relative weight of
1. 0 answers
2. asked by Maryana PLEASE HELP
3. 836 views
cent, cent, scent equals 35128; how do you solve it?
1. 1 answer
2. asked by Emily
3. 829 views
4. Which of the following has a surface covered with coffers?a. Bath b. Apse c. Dome d. Arch I know it's not A, but I'm not sure
1. 6 answers
2. asked by mysterychicken
3. 828 views
You are a technical writer in a large company who is working on a training manual to help new users learn the company's computer
1. 1 answer
2. asked by Anonymous
3. 823 views
You work in a physicians office performing billing. You notice that the guidelines haven't been followed accurately in
1. 0 answers
2. asked by Maryana
3. 818 views
an amusement park ride consists of a rotating circular platform 7.4 m in diameter from which 10 kg seats are suspended at the
1. 1 answer
2. asked by vanessa
3. 814 views
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the
1. 0 answers
2. asked by Craig
3. 806 views
The world record for the mile was 4:10 and 3:49 in 1975. Assuming that the record improves in a linear fashion (which it has so
1. 2 answers
2. asked by Nikki
3. 806 views
Which of the following confirms that gravitational mass and inertial mass are equal?1.Free-fall accleration is the same
1. 1 answer
2. asked by Annie
3. 805 views
write a one paragraph analysis of about 150 words, in which you do the following:oIdentify which of the two selected paragraphs
1. 7 answers
2. asked by Anonymous
3. 800 views
What would be the journal entry to record:Sept 28, 2009 A dividend was declared, which they intend to pay at $0.10 per share by
1. 0 answers
2. asked by Johsua
3. 798 views
what product would you expect to obtain from addition of Cl2 to 1,2-dimethylcyclohexene?
1. 0 answers
2. asked by Jada
3. 783 views
How many grams of ice at -26.5\, ^\circ C can be completely converted to liquid at 15.0\, ^\circ C if the available heat for
1. 1 answer
2. asked by Bella
3. 782 views
i have a question regarding statistics. i just don't know how to do it and would really appreciate if someone could tell how i
1. 1 answer
2. asked by ash
3. 779 views
I forgot to include the following statements. I really hope you can have a look at them, too. Thank you very much in advance.1)T
1. 1 answer
2. asked by Franco
3. 763 views
A basketball player makes a jump shot. The 0.700-kg ball is released at a height of 2.00 m above the floor with a speed of 7.70
1. 2 answers
2. asked by Sierra
3. 755 views
can a color blind female have a son that has normal vision? color blindness is caused by a sex linked recessive allele. N=normal
1. 0 answers
2. asked by jack
3. 747 views
(1 pt) An aricraft carrier has a mass of 8.9 x10^7kg and can cruise at 55 km/h.a) What is the work required to stop it? J b)
1. 6 answers
2. asked by applebottom
3. 745 views
solve the given inequality and graph its solution on the number line2-x/3less than or eqaul to (</) 3-2x/5 lxl less than or
1. 1 answer
2. asked by mimz
3. 745 views
A 384-m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is four-fifths as long as the
1. 2 answers
2. asked by Nina
3. 724 views
The result of reflecting across the line y=-x and then rotating 330 degrees counterclockwise around the origin is an isometry T.
1. 0 answers
2. asked by caroline
3. 717 views
Which of the following confirms that gravitational mass and inertial mass are equal? I posted this about three hours ago and no
1. 3 answers
2. asked by Annie
3. 712 views
Assume that water lilies double in area every 24 hours. In the spring, there is one water lily on a lake. After thirty days, the
1. 2 answers
2. asked by Max
3. 712 views
a 60 kilogram student sitting on a hardwood floor accelerates at 1.3 meters per second squared when pulled by a 240 newton
1. 1 answer
2. asked by bob
3. 706 views

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