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2011
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Questions Asked on March 4, 2011

A recipe that makes 18 cookies calls for 3/4 cup of sugar. How much sugar is needed to make 24 cookies using this recipe?
1. 4 answers
2. asked by Sarah
3. 8,080 views
Two charges that are 2 meters apart repel each other with a force of 2 x 10-5 newton. If the distance between the charges isdecr
1. 9 answers
2. asked by john
3. 4,254 views
A ladder leans leans against a building that has a wall slanting away from the ladder at an angle of 96 degrees with the ground.
1. 3 answers
2. asked by K.C
3. 4,066 views
Which of the following shows linear sequence of atoms joined by covalent bonds in peptide backbone.a) -N-C-C-N-C-C-N b)
1. 2 answers
2. asked by Lena
3. 3,929 views
Compute f '(a) algebraically for the given value of a. HINT [See Example 1.]f(x) = −6x − x2; a = 4
1. 1 answer
2. asked by la
3. 3,543 views
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.70 104 m/s, and the radius of the
1. 2 answers
2. asked by Justin
3. 3,227 views
If i titrated 25.0mL of 0.500M HCl with 0.500M NaOH and then 25.0mL of 0.500M of an unknown weak acid HA with 0.500M NaOH. How
1. 2 answers
2. asked by Jake
3. 2,712 views
A trapeze artist swings in simple harmonic motion with a period of 3.2 s. The acceleration of gravity is 9.81 m/s2 . Calculate
1. 2 answers
2. asked by Ellen
3. 2,694 views
A mechanic jacks up the front of a car to an angle of 6.2° with the horizontal in order to change the front tires. The car is
1. 1 answer
2. asked by Mike
3. 2,683 views
Hitomi has a total of 30 red and blue bowling balls at her bowling alley. Each red ball weighs 8 lb. Each blue ball weighs 9 lb.
1. 6 answers
2. asked by Katherine
3. 2,560 views
Two identical gliders slide toward each other on an air track. One moves at 1m/s and the other at 2m/s. they collide and stick.
1. 3 answers
2. asked by Stanley
3. 2,171 views
A parallel-plate capacitor is made from two plates 12.0cm on each side and 4.50mm apart. Half of the space between these plates
1. 2 answers
2. asked by Rachel
3. 2,161 views
To determine the location of his center of mass, a physics student lies on a lightweight plank supported by two scales L = 2.40
1. 3 answers
2. asked by Megan
3. 1,940 views
A school yard teeter totter with a total length of 5.46 m and a mass of 35.9 kg is pivoted at its center. A 17.7 kg child sits
1. 2 answers
2. asked by Megan
3. 1,841 views
Consider a pendulum of length 4.557 m. The acceleration of gravity is 9.832 m/s2 .a) What is its period at the North Pole?
1. 2 answers
2. asked by Ellen
3. 1,803 views
Two positive charges of 5.43 µC each are508 cm apart. Find the electric ﬁeld midway between them. What is the magnitude of
1. 2 answers
2. asked by Anonymous
3. 1,773 views
Lisa will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $53.98 and costs an
1. 3 answers
2. asked by Tanya
3. 1,696 views
In a polypeptide at physiologic pH, hydrogen bonding may form between which of the following?a) side chains of leucine residue
1. 5 answers
2. asked by Lena
3. 1,668 views
A mass of 0.38 kg is attached to a spring and is set into vibration with a period of 0.22 s. What is the spring constant of the
1. 1 answer
2. asked by Ellen
3. 1,542 views
CaCO3(s) <--> CaO(s) + CO2 (g)A 5.9-gram sample of CaCO3 (molar mass = 100.) is placed in an evacuated 2.00L container and
1. 1 answer
2. asked by Patrick
3. 1,495 views
Participants in a psychology experiment were able to memorize an average of M words in t minutes, where M = −0.001t3 + 0.1t2
1. 1 answer
2. asked by Jackster
3. 1,488 views
An unknown gas Q requires 2.17 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the
1. 1 answer
2. asked by ria
3. 1,464 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating
1. 1 answer
2. asked by Nathan
3. 1,456 views
A child swinging on a swing set hears the sound of a whistle that is being blown directly in frontof her. At the bottom of her
1. 2 answers
2. asked by Trace
3. 1,429 views
Which of the following is a characteristic of mediation?a. the court controls b. the parties remain in control c.a decision is
1. 1 answer
2. asked by Avaa
3. 1,409 views
your friend says that the heavyweight champion of the world cannot exert a force of 50N on a piece of tissue paper with his best
1. 1 answer
2. asked by Stanley
3. 1,363 views
LiOH + CO2 ----> Li2CO3 + H2O1. how I can balance the equation?
1. 1 answer
2. asked by leslie
3. 1,360 views
A 3.2 liter sample of gas is at 40.0oC and 1.0 atmosphere of pressure. If the temperature decreases to 20oC and the pressure
1. 2 answers
2. asked by sheshe
3. 1,264 views
A sample of gas collected at 21.0 oC and a pressure of 660.0 torr has a volume of 1.83 liters. What volume in liters will the
1. 2 answers
2. asked by sheshe
3. 1,262 views
Two charged spheres are 8.00 apart. They are moved, and the force on each of them is found to have been tripled
1. 1 answer
2. asked by martha
3. 1,252 views
When 15.3g of NaNO3 was dissolved in water inside a constant pressurecalorimeter, the temperature fell from 25.00 °C to 21.56
1. 1 answer
2. asked by Stephen
3. 1,215 views
The perimeter of triangle PQR is 78, PQ=18, triangle PQR ~ triangle STU, AND ST=6. What is the perimeter of triangle STU?
1. 2 answers
2. asked by Anonymous
3. 1,209 views
How many satellites does Brazil have?
1. 0 answers
2. asked by kelly
3. 1,207 views
two equally charged spheres, X and Y, repel each other with a force of 8.0 x 10^-6 N when placed a certain distance apart.
1. 1 answer
2. asked by rachel
3. 1,194 views
For each of the following, indicate the accounting concept or constraint that has been violated, if any:1) The company currently
1. 0 answers
2. asked by Thara
3. 1,171 views
Planets A and B orbit the same star. Planet B is four times further from the star than planet A and has twice the mass of planet
1. 1 answer
2. asked by love
3. 1,146 views
How many distinct permutations of the letters of the word OTTAWA being and end with the letter T?I did 6!/2! :S but i get 360. I
1. 1 answer
2. asked by Jacob
3. 1,129 views
A four-year TIPS bond promises a real annual coupon return of 4 percent andits face value is $1,000. While the annual inflation
1. 0 answers
2. asked by sherry
3. 1,114 views
The medians of a right triangle which are drawn from the vertices of the acute angle are 5 and root 40. What is the length of
1. 1 answer
2. asked by Something
3. 1,110 views
two states that are located in the northeast tip of the Southeast region of the united state.
1. 1 answer
2. asked by mekhi
3. 1,090 views
These three questions I am having difficulty in solving. Can you help me here.Question 1 - a) Whenever children in the United
1. 3 answers
2. asked by David
3. 1,073 views
A rectangular painting has an area of 720 square inches. It is to be reduced by 1/6 scale factor. What is area of the miniature
1. 2 answers
2. asked by Bill
3. 1,062 views
Is "brittle" an onomatopoeia?
1. 3 answers
2. asked by Anna
3. 1,057 views
a sample of oil has a mass of 65g and a volume of 80.0ML. What is the specific gravity of the oil?
1. 1 answer
2. asked by Magalie
3. 1,056 views
The letter which best completes the sequence below is:A D E H I ? Answer: J. K. L. M. N.
1. 6 answers
2. asked by Yvette
3. 1,054 views
The function gives the cost to manufacture x items.C(x) = 20,000 + 5x − x2 20,000 ; x = 20,000 Find the average cost per unit
1. 0 answers
2. asked by Beth
3. 1,053 views
f(x)= -(-2)^3+11(-2)^2-8(-2)+7 find f(-2)f(-2)=8+44+16+7=75
1. 1 answer
2. asked by RAM
3. 1,042 views
A karate chop delivers a blow of 300N to a board that breaks. The force that acts on the hand during this event is?
1. 2 answers
2. asked by Stanley
3. 1,022 views
Can someone please check this sentence. I want to make sure I DON'T need a comma in the sentence. THANKS!I have found her to be
1. 1 answer
2. asked by april
3. 1,020 views
The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to about 4.1 103 Calories. If an
1. 1 answer
2. asked by blah
3. 1,017 views
Which of the following statements about the U.S. annexation of Hawaii is true?A. It was universally popular in the United
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 1,015 views
A mass on a spring bobs up and down over a distance of 30cm from the top to the bottom of its path twice each second. What are
1. 1 answer
2. asked by Cher
3. 1,012 views
Br2 + Cl2 ----> 2BrClall estequiometicas con respecto a Cl2? cuantos moles de Cl2 se necesitan para formar 55g de BrCl? cuantos
1. 0 answers
2. asked by leslie
3. 983 views
Compute the indicated derivative.R(t) = −0.8t2; R'(7)
1. 2 answers
2. asked by la
3. 977 views
A 0.50 kg ball that is tied to the end of a 1.2 m light cord is revolved in a horizontal plane with the cord making a 30°
1. 1 answer
2. asked by Anonymous
3. 973 views
What is the perimeter of the isosceles triangle shown below? If necessary, round to the nearest hundredth.
1. 3 answers
2. asked by ej
3. 969 views
6. A charged particle remains stationary in an upwardly directed E field between two parallel charged plates separated by 2 cm.
1. 1 answer
2. asked by ike
3. 967 views
Rolling 6 dice, what is the probability of rolling six of a kind?
1. 1 answer
2. asked by Sid
3. 967 views
im so confused! please help!3. A car manufacturer is interested in conducting a study to estimate the mean stopping distance for
1. 0 answers
2. asked by george
3. 957 views
An airplane is flying horizontally with a speed of 1000 km/hr (278 m/s) when it drops a payload. The payload hits the ground 37
1. 3 answers
2. asked by kelly
3. 949 views
You have found the following stock quote for RJW Enterprises, Inc., in the financial pages of today's newspaper. The closing
1. 1 answer
2. asked by Bradley
3. 929 views
A 1.50mol sample of helium at a certain temperature and pressure has a volume of 31.4L. A second sample of helium at the same
1. 1 answer
2. asked by naseeb
3. 920 views
A 0.50 kg ball that is tied to the end of a 1.2 m light cord is revolved in a horizontal plane with the cord making a 30°
1. 2 answers
2. asked by Anonymous
3. 916 views
a 3.00mole sample of fluorine reacts with sodium bromide to produce how many grams of sodium fluoride?
1. 1 answer
2. asked by sharday
3. 915 views
010 (part 1 of 5) 10.0 pointsA string of 26 identical Christmas tree lights are connected in series to a 120 V source. The
1. 1 answer
2. asked by Anonymous
3. 911 views
Can you check the essay below for any mistakes that can be fixed:“He who does not have the courage to speak up for his rights
1. 1 answer
2. asked by Sumaiya
3. 911 views
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit
1. 2 answers
2. asked by Abigail
3. 861 views
A string of 26 identical Christmas tree lightsare connected in series to a 120 V source. The string dissipates 63 W. What is the
1. 0 answers
2. asked by Anonymous
3. 855 views
use the appropriate trig identity (sum and difference, half angle, double angle) to find the exact value. 1)cos 255 degrees2)
1. 1 answer
2. asked by Jennifer
3. 843 views
what is the foci of the graph x^2/36-y^2/16=1
1. 1 answer
2. asked by Anonymous
3. 833 views
particles of mass 3m and 5 m hang one at each end of a light inextensible string which passes over a pulley.The system is
1. 1 answer
2. asked by rob
3. 832 views
Compare/contrast real Julius Caesar to play by William Shakespeare
1. 3 answers
2. asked by Justin
3. 825 views
A vehicle that weighs 400N on the surface of the earth is traveling in outer space at a speed of 400m/s. it can be stopped by
1. 0 answers
2. asked by Stanley
3. 824 views
Can someone help me out with project for Data Management. I need some topics that I could use for my thesis/hypothesis (with a
1. 1 answer
2. asked by Joey
3. 817 views
How do I find the geometric mean between 12 and 2.4?
1. 1 answer
2. asked by Shannon
3. 813 views
3. Definitions sometimes involve both denotative and connotative meanings. For example, the word talk might be defined with this
1. 2 answers
2. asked by rita
3. 798 views
A 1290-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1920-N crate
1. 1 answer
2. asked by TaylorBaum
3. 791 views
what is a good haiku poem about sodium??
1. 1 answer
2. asked by sieshaa
3. 791 views
2. Two equally charged balls, each of mass 0.10 gm, are suspended from the same point by threads 13 cm long. The balls come to
1. 0 answers
2. asked by ike
3. 783 views
Two positive charges of 5.43 µC each are508 cm apart. Find the electric ﬁeld midway between them. What is the magnitude of
1. 1 answer
2. asked by Anonymous
3. 778 views
A capacitor network has two capacitors in series: 150nF and 120nF. The potential difference between point a on the outer side of
1. 1 answer
2. asked by Jon
3. 776 views
When we talk about staying somewhere, we use the preposition "at." (I am staying at the bar).If we talk about going somewhere,
1. 3 answers
2. asked by MattsRiceBowl
3. 770 views
I need a problem:LiOH + CO2 ---> Li2CO3 + H2O 1. to balance the equation? 2. write the reasons estequiometricas with regard to
1. 1 answer
2. asked by leslie
3. 770 views
suppose that "element a" has a valence number of 3 and "element b" has a valence number of 2. if the two elements combine, then
1. 1 answer
2. asked by jake
3. 754 views
Two loudspeakers are 2.42 m apart. A person stands 3.42 m from one speaker and 2.82 m from the other. What is the lowest
1. 0 answers
2. asked by Anonymous
3. 728 views
Question: Five cards are dealt from standard deck of 52 cards, what is the probability of being dealt 3 kings?Here is what I
1. 0 answers
2. asked by marco
3. 726 views
Are there any literary elements in the first part of Nineteen Minutes by Jodi Picoult??
1. 0 answers
2. asked by Emily
3. 724 views
which two state northeast tip us of the south east region
1. 5 answers
2. asked by mekhi
3. 722 views
The magnetic ﬁeld in a loudspeaker is 0.2 T.The wire consists of 308 turns wound on a 4.12 cm diameter cylindrical form. The
1. 0 answers
2. asked by Anonymous
3. 718 views
I have to write a postcard in French.Im in grade 10, so my vocab isn't really up there. I have to include the date, tell where I
1. 3 answers
2. asked by Sidney
3. 717 views
For the balanced equation shown below, if 40.1 grams of C2H3O2Br were reacted with 8.01 grams of O2, how many grams of H2O would
1. 1 answer
2. asked by Lelu
3. 716 views
For the balanced equation shown below, if 40.1 grams of C2H3O2Br were reacted with 8.01 grams of O2, how many grams of H2O would
1. 1 answer
2. asked by Lelu
3. 716 views
I need to write a program to solve for the following: Suppose that the file USPRES.txt contains the names fo the frist 43 United
1. 0 answers
2. asked by Wally
3. 711 views
Two positive charges of 5.43 µC each are508 cm apart. Find the electric ﬁeld midway between them. What is the magnitude of
1. 1 answer
2. asked by Anonymous
3. 699 views
an important effect of the collective importance of wartime agencies wasa.it set a valuable precedent of government activism in
1. 1 answer
2. asked by sharice
3. 696 views
particles of mass 3m and 5 m hang one at each end of a light inextensible string which passes over a pulley.The system is
1. 0 answers
2. asked by rob
3. 692 views
What is the magnitude of the electric ﬁeld if one charge is positive and the other negative, both of magnitude 5.43 µC?
1. 2 answers
2. asked by Anonymous
3. 692 views
1. solve tan36 degrees- tan2degrees/ 1+tan36 degrees tan 2 degrees as a single function.2. Find the exact value of sin (α-β)
1. 2 answers
2. asked by pleasehelp!
3. 690 views
A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political
1. 1 answer
2. asked by Anonymous
3. 688 views
A string of 26 identical Christmas tree lightsare connected in series to a 120 V source. The string dissipates 63 W. What is the
1. 0 answers
2. asked by Anonymous
3. 687 views

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