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Questions Asked on March 8, 2010

You want to swim straight across a river that is 76m wide. You find that you can do this if you swim 28 degrees upstream at a
1. 2 answers
2. asked by Amber
3. 7,357 views
Pulling up on a rope, you lift a 4.35-kg bucket of water from a well with an acceleration of 1.78m/s^2. What is the tension in
1. 2 answers
2. asked by Steve
3. 6,730 views
Pulling the string on a bow back with a force of 28.7lbs, an archer prepares to shoot an arrow. If the archer pulls in the
1. 3 answers
2. asked by Jim
3. 4,699 views
Hello,I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing. Blood
1. 3 answers
2. asked by Phillip
3. 4,290 views
A boy throws a rock with an initial velocity of 2.47 m/s at 30.0 degrees above the horizontal. How long does it take for the
1. 2 answers
2. asked by Sasha
3. 4,288 views
The mean height of 20 boys and 14 girls is 161 cm. If the mean height of the 14 girls is 151 cm, calculate the mean height of
1. 4 answers
2. asked by MJ
3. 3,628 views
A 50.0-kg person takes a nap in a backyard hammock. Both ropes supporting the hammock are at an angle of 15.0degrees above the
1. 4 answers
2. asked by Jim
3. 3,412 views
A small factory employs 7 experienced and 5 inexperienced workers. The mean monthly wage of these 12 workers is $700. Given that
1. 3 answers
2. asked by MJ
3. 3,368 views
A 63 kg canoeist stands in the middle of her 19 kg canoe. The canoe is 3.0 m long, and the end that is closest to land is 2.5 m
1. 2 answers
2. asked by Tory
3. 3,324 views
Sucrose, C12H22O11, is burned to produce carbon dioxide and water.What is the balanced formula and reaction type?
1. 2 answers
2. asked by Jacob
3. 3,175 views
Suppose a solution containing 3.50g of Na3PO4 is mixed with an excess of Ba(NO3)2. how many grams of Ba2(PO4)2 can be formed.2-N
1. 7 answers
2. asked by Kerry
3. 3,134 views
if the diameter of a circle is onefoot, then the radius of the circle is how many inches?
1. 7 answers
2. asked by jojo
3. 3,036 views
in a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. a)If the helicopter lifts the
1. 3 answers
2. asked by Jim
3. 3,015 views
The magnification of a convex mirror is +0.65X for objects 2.8 m from the mirror. What is the focal length of this mirror?
1. 2 answers
2. asked by Anonymous
3. 2,970 views
Why does changing the volume of the reaction vessel have no effect on this equilibrium?CO(g) + Fe3O4(s) <===> CO2(g) + 3FeO(s)
1. 2 answers
2. asked by Sammy
3. 2,924 views
What is the probability that the random variable has a value between 0.1 and 0.5?The random variable is .125.
1. 2 answers
2. asked by Lyndse
3. 2,534 views
Assume you are performing the calibration step of Experiment 8 and you begin with 70 g of water at 20 oC and 70 g of water at 80
1. 4 answers
2. asked by dee
3. 2,525 views
If an air bubble passes unnoticed through the tip of a buret during a titration (where a weak nonvolatile acid HA is the
1. 2 answers
2. asked by Kiki
3. 2,300 views
The Fibonacci sequence of numbers begins 1,1,2,3,5,8,13,21,34,55,…and continues by the rule: every number is the sum of the
1. 1 answer
2. asked by bill
3. 2,215 views
What is the balaced net ionic for this equation:PbNO3+CuSO4-->PbSO4+CuNO3
1. 1 answer
2. asked by Nichole
3. 2,145 views
1. Write the balanced chemical equation for the reactionNaOH + HCI --> NaCI + H20 2. Extract the relevant information from the
1. 5 answers
2. asked by Maria
3. 2,120 views
Two 2.5-cm-diameter electrodes with a 0.10-mm-thick sheet of Teflon between them are attached to a 9.0V battery. Without
1. 1 answer
2. asked by JOTHEY
3. 1,849 views
A math teacher gives two different tests to measure students' aptitude for math. Scores on the first test are normally
1. 2 answers
2. asked by Lyndse
3. 1,830 views
A gas that occupies a volume of 6.75L at 89.0atm will occupy what volume at 68.55mm Hg if the temperature remains constant?(89.0
1. 1 answer
2. asked by Shannon
3. 1,802 views
When butane undergoes complete combustion , the products are CO2 and H2OC4H10(g) + O2(g)-> CO2(g) + H2O(g) What is the value of
1. 3 answers
2. asked by jeanette
3. 1,772 views
Suppose you are studying bacteria in biology class the table shows the number of bacteria after n doubling periodsn(periods)[0 1
1. 3 answers
2. asked by Anonymous
3. 1,754 views
Most natural gas consists of about 90% methane, CH4. Assume that the solubility of natural gas at 20 C and 1 atm gas pressure is
1. 1 answer
2. asked by david
3. 1,734 views
13. A tree casts a shadow of 17 ft. The angle of elevation from the tip of the shadow to the top of the tree is 68°. To the
1. 3 answers
2. asked by Karla
3. 1,715 views
A person whose eyes are H = 1.62 m above the floor stands L =2.24m in front of a vertical plane mirror whose bottom edge is 43
1. 1 answer
2. asked by DJ
3. 1,712 views
Type the prepositional phrases in the boxes.In 1647 the first tax-supported schools were established by law in the United
1. 9 answers
2. asked by nicky
3. 1,704 views
In some solid calcium carbonate samples, calcium bicarbonate, Ca(HCO3)2, is also present. Write a balanced euation for its
1. 2 answers
2. asked by jEFFREY
3. 1,686 views
Assume a $4000 investment and the following cash flows for two alternatives. Under the payback method, which of the following
1. 2 answers
2. asked by Anonymous
3. 1,679 views
A ski trail makes a vertical descent of 78.0 m (as shown in the figure below ). A novice skier, unable to control his speed,
1. 2 answers
2. asked by Sarah
3. 1,672 views
Determine the boiling point elevation of H2O in the following solutiona 2.5 m solution of C6H12O6 in H2O All i need is the
1. 4 answers
2. asked by Veronica
3. 1,649 views
A solution of HNO2 is at equilibrium:HNO2(aq) + H2O(l) ⇔ H3O+(aq) + NO2-(aq) Water is added. After the water is added, is
1. 3 answers
2. asked by Tommy
3. 1,609 views
If 15.0 kJ are released when 1.40 g of F2 reacts with an excess of SiH4, complete the thermochemical equation below.SiH4(g) + 2
1. 2 answers
2. asked by Rach
3. 1,592 views
A gas that occupies a volume of 6.75L at 89.0atm will occupy what volume at 68.55mm Hg if the temperature remains constant?
1. 2 answers
2. asked by Shannon
3. 1,582 views
State a conclusion that seems reasonable.Donald is older than Jeanette; Donald is older than Ethel. Donald is older than Allen.
1. 5 answers
2. asked by amy s
3. 1,546 views
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this
1. 3 answers
2. asked by Anonymous
3. 1,545 views
Friendly's Clothing Store bought handkerchiefs, six for $10, and sold them 4 for $10. They made $60 profit. How many
1. 1 answer
2. asked by Joe
3. 1,515 views
The Place you get your haircut has two nearly parallel mirrors 5.0m apart. As you sit in the chair, yoru head is 2.0 m from the
1. 1 answer
2. asked by EM
3. 1,484 views
A solution is prepared by mixing 0.0400 mol CH2Cl2 and 0.0800 mol CH2Br2 at 25 degrees C. Assume solution is ideal, calculate
1. 3 answers
2. asked by Sara
3. 1,478 views
Find the time for two people working together to complete a task if it takes them 4.5 hrs and 6 hrs working individually.
1. 1 answer
2. asked by bernette
3. 1,456 views
Type the prepositional phrase in the box.The Grand Canyon is in Arizona. i put (in) an i got it wroung and then i put (the) and
1. 7 answers
2. asked by nicky
3. 1,433 views
Andy, a high school sophomore, lacks self-discipline, fails to plan ahead, and is excessively anxious. He is quickly frustrated
1. 2 answers
2. asked by Amy
3. 1,384 views
A ^H corresponds to an processis it negative, endothermic
1. 1 answer
2. asked by jeanette
3. 1,354 views
When solving a rational equation, why is it necessary to perform a check?
1. 4 answers
2. asked by GGIFT
3. 1,299 views
What are the independent and dependent variables when determining the percentage water in hydrated copper sulfate salts, while
1. 0 answers
2. asked by Veronica
3. 1,265 views
I have to do a project about the human life cylce dose anyone know any good websites or any good information about the seven
1. 0 answers
2. asked by Rachael.gardner
3. 1,254 views
Using the documents, analyze African actions and reactions in response to the European Scramble for Africa. DBQ HELP NEED a
1. 1 answer
2. asked by Monica
3. 1,244 views
Simplify the given equation.17x - 6 + 3x - 5 = x + 11 + 4x A)20x - 11 = 5x + 11 B)20x + 1 = 5x + 11 C)9x = 16x
1. 4 answers
2. asked by nicky
3. 1,243 views
A plane flies directly from city A to B, which are separated by 2300mi. From A to B, the place flies into a 65mi/hr headwind. ON
1. 1 answer
2. asked by Sasha
3. 1,240 views
If 16.9 kJ are released when 1.50 g of O2 reacts with an excess of NO, complete the thermochemical equation below.4 NO(g) + 3
1. 2 answers
2. asked by Tiffany
3. 1,219 views
how do Compare and contrast the roles the prison system, the family, and the social stratification system play in either
1. 3 answers
2. asked by meshelle
3. 1,214 views
A projectile is fired directly upward with a muzzle velocity of 860 feet per second from a height of 7 feet above the ground.a.
1. 1 answer
2. asked by bill
3. 1,193 views
a shaded portion of a rectangle is 2/5 of the total area....How much of the total area is not shaded...A.5/2 B.3/5 c.5/3 d.3/10.
1. 2 answers
2. asked by michelle
3. 1,171 views
How many grams of AgBr are produced from 2.50g of cobalt II bromide?Using this chemical reaction: AgNO3+CoBr->CoNO3
1. 1 answer
2. asked by Anonymous
3. 1,162 views
Why would Judy Brady use the letter I 67 times in her essay," I want a Wife" ?
1. 6 answers
2. asked by Sara
3. 1,153 views
A person swings a 0.33 kg tether ball tied to a 5.4 m rope in an approximately horizontal circle.(a) If the maximum tension the
1. 1 answer
2. asked by John
3. 1,147 views
If it took 5 seconds to lift the crate,using a machine,what was the power rating of the machine.
1. 2 answers
2. asked by Daquindre
3. 1,142 views
Need to develop a thesis statement for an essay on the Israeli/Palestinian conflict. Any ideas possibly involving a 2 state
1. 1 answer
2. asked by CD
3. 1,138 views
I forgot to include the following questions for you to check. Thank you very much.7) The interviewee got together with two
1. 1 answer
2. asked by Franco
3. 1,138 views
an object travels in a straight line at a constant acceleration for 6 seconds.in the first 2 seconds it travels 18 metres and in
1. 3 answers
2. asked by Ankur
3. 1,121 views
ineed help with c++.i am using code blocks and i have a problem with the compiler. when I run this code ¡é # include
1. 3 answers
2. asked by lj
3. 1,117 views
If 20.0 mL of glacial acetic acid (pure HC2H3O2) is diluted to 1.30 L with water, what is the pH of the resulting solution? The
1. 2 answers
2. asked by Katherine
3. 1,116 views
In a daring rescue by helicopter, two men with a combined mass of 172-kg are lifted to safety. (a) If the helicopter lifts the
1. 1 answer
2. asked by Matt
3. 1,090 views
A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The
1. 1 answer
2. asked by Ben
3. 1,090 views
Citizens of Franistan pay numerically the same percent in income tax as they make in Rupees per week. (Example: If one makes 15
1. 1 answer
2. asked by malik
3. 1,075 views
1. He is not our age.2. He is not of our age. (Does #1 come from #2? Is 'of' omitted in Sentence 1?) 3. Who is a math genius? 4.
1. 1 answer
2. asked by rfvv
3. 1,070 views
Please help me with this problem:Find the number c that satisfies the conclusion of the Mean Value Theorem. f(x) = x/(x + 4) [1,
1. 1 answer
2. asked by Sarah
3. 1,034 views
A 5.80 g sample of SiH4 and an excess of oxygen were placed in a reaction container surrounded by 3.40 kg of water. The initial
1. 3 answers
2. asked by Megan
3. 1,017 views
what is the premises and the conclusion of this argument?since it is the very nature of terrorism not only to cause immediatw
1. 1 answer
2. asked by keshia
3. 982 views
how do you increase the yield of triphenylmethanol in a grignard reaction?
1. 1 answer
2. asked by Rachel
3. 974 views
an adult cheetah weighs about 130 pounds. an adult mountain lion weighs about 170 pounda. a student estimates that a mountain
1. 3 answers
2. asked by jojo
3. 972 views
Acid (Unknown) Solution: HCL Molar Ratio: 1:1 Volume:20 ml Concentration:?Base(Known) Solution: NaOH Molar Ratio 1:1 Volume 26
1. 1 answer
2. asked by Karla
3. 965 views
1)The branches of rivers within a delta are called:(a)tributaries(b)confluences(c)distributaries(d)meanders2)All of the
1. 4 answers
2. asked by Devaughn
3. 963 views
how many ways can an IRS auditor select 5 of 12 tax returns for an audit?
1. 2 answers
2. asked by Anonymous
3. 961 views
State a conclusion that seems reasonable.6 + 0 = 6, 8 + 0 = 8, 9 + 0 = 9, 100 + 0 = 100. Conclusion:
1. 3 answers
2. asked by yelena
3. 958 views
Almost all maps have these four things:A)scale, legend, title, and compass B)rock units, legend, symbols, and scales C)contour
1. 1 answer
2. asked by nicky
3. 952 views
Point P(a,b) is on the curvesquare root of x + square root of y =1. Show that the slope of the tangent at P is : - square root
1. 3 answers
2. asked by Anonymous
3. 950 views
Solve the inequality. Other than , graph the solution set on a number line.12x - 3 > 3(3x - 9)
1. 2 answers
2. asked by DK
3. 948 views
Determine the pH of 0.18M NH4Cl.
1. 1 answer
2. asked by Katelynn
3. 942 views
Pulling the string on a bow back with a force of 28.7 lb, an archer prepares to shoot an arrow. If the archer pulls in the
1. 1 answer
2. asked by Chels
3. 939 views
A cyclist starts from rest and pedals so that the wheels make 7.7 revolutions in the first 5.1 s. What is the angular
1. 1 answer
2. asked by Max
3. 930 views
A)Round -7.86 up to the next integer.B) Round -0.04837 to the nearest hundredth. C)Round -437 down to the preceding ten.
1. 1 answer
2. asked by Anonymous
3. 926 views
Copper has a specific heat of 0.387 J/g·°C. How much energy is required to raise the temperature of 140. g of copper from
1. 1 answer
2. asked by Megan
3. 907 views
What are two different ways that genes are identified in prokaryotic versus eukaryotic genomes.
1. 0 answers
2. asked by Jess
3. 900 views
It is the case that good communicators advance more quickly in the company.Which of the following would be the best revision of
1. 1 answer
2. asked by vedrana
3. 890 views
What is the number directly below 99 when the triangular array below is continued?1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1. 1 answer
2. asked by joanne
3. 888 views
Where could I find good information on school desegregation?
1. 1 answer
2. asked by Shadow
3. 858 views
what is lava q2 what r the three resource of nature
1. 1 answer
2. asked by nayaan
3. 857 views
I was told in class to find a piece of "biased writing" and use the knowledge about critical thinking. how would i know whether
1. 6 answers
2. asked by Kate
3. 836 views
118 g of a metal at 82.0°C are added to 50.0 g of water at 31.1°C. When the system reaches constant temperature, the
1. 1 answer
2. asked by Tiffany
3. 835 views
had some Psychology homework resereching a female Psychiatrist named Viola Brody. but when i reaserch her online through all the
1. 1 answer
2. asked by Joshua
3. 832 views
One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per
1. 1 answer
2. asked by Monica
3. 830 views
factor completelyx^4-16=0
1. 4 answers
2. asked by shawn
3. 824 views
Gasoline and beer are monopolistic competition. But why the prices of gasoline always changes while beer's price is constant?
1. 1 answer
2. asked by uno
3. 824 views
How many coulombs of positive charge are in 3.8 mol of O2 gas?
1. 4 answers
2. asked by deb
3. 816 views
A planet has two satellite moons. Moon X has an orbital period of 2.27 days. Moon Y has an orbital period of about 3.40 days.
1. 1 answer
2. asked by Sar
3. 815 views
1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C = __6,000__ (all supposed to be
1. 4 answers
2. asked by GGIFT
3. 814 views

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