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Questions Asked on September 27, 2010

A rectangular package to be sent by a delivery service can have a maximum combined length and girth (perimeter of a cross
1. 4 answers
2. asked by Hannah
3. 7,223 views
"A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the
1. 4 answers
2. asked by sahan
3. 6,660 views
Calculate the freezing point of a solution of 20.0 g methyl salicylate, C7H6O2, dissolved in 800 g of benzene, C6H6. Kf for
1. 2 answers
2. asked by Amy
3. 6,400 views
Predict how many electrons will most likely be gained or lost by each of the following elements.(a) Se Will it gain or lose
1. 2 answers
2. asked by NEED HELP
3. 5,082 views
How many total moles of ions are released when the following sample dissolves completely in water:5.15x10^-3 g Ca(NO3)2
1. 2 answers
2. asked by KELLY
3. 4,428 views
A 4.3 kg particle starts from rest and moves adistance of 3.6 m in 2.5 s under the action of a single, constant force. Find the
1. 1 answer
2. asked by Wendia
3. 3,161 views
which of the following properties hold for subtraction of whole numbers?A. Closure property B. Associative property C.
1. 1 answer
2. asked by Devan
3. 2,634 views
How many molecules are in 2.6 grams of H2O?
1. 2 answers
2. asked by Bob
3. 2,475 views
gk bisects <fghif m<fgk=7w+3 and m<fgh=104, find w
1. 2 answers
2. asked by Si
3. 2,315 views
"What effect does doubling (S2O8)^2- have on the rate?" I don't understand that question. Could you please explain it?
1. 1 answer
2. asked by Kimberky
3. 2,285 views
Silver has two naturally occurring isotopes (Ag-107 and Ag-109).(a) Use the periodic table to find the atomic mass of silver.
1. 1 answer
2. asked by NEED HELP
3. 2,251 views
Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic
1. 3 answers
2. asked by NEED HELP
3. 2,177 views
A horse is pulling a canal boat at 12 degrees to the rope. Tension of the rope it 1150 newtons. The canal is moving at a steady
1. 5 answers
2. asked by Char
3. 2,117 views
A reaction of the form aA-----products is second-order with a rate constant of 0.225 L/(mol/s). If the initial concentration of
1. 2 answers
2. asked by Yesenia
3. 2,076 views
Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass
1. 3 answers
2. asked by NEED HELP
3. 1,966 views
A diver running 2.4 m/s dives out horizontally from the edge of a vertical cliff and 2.6 s later reaches the water below. How
1. 2 answers
2. asked by Katie
3. 1,911 views
what does the statment mean. The properties of salts are different from the properties of the elements that go into making them
1. 20 answers
2. asked by madyson
3. 1,798 views
How much energy must be absorbed by 20.0g of water to increase its temp. from 283.0 C to 303.0 C?please i really need the answer
1. 3 answers
2. asked by kacey
3. 1,719 views
how were the first civilizations similar and different?
1. 6 answers
2. asked by Christina
3. 1,715 views
How many grams of lead(II) iodate, Pb(IO3)2 (formula weight = 557.0 g/mol), are precipitated when 3.20 × 102 mL of 0.285 M
1. 5 answers
2. asked by Diggs
3. 1,704 views
what is the riddle answer???missed lesson don't get it!!! please help in diar need!!!! question is... why do girls like guys who
1. 35 answers
2. asked by poop
3. 1,682 views
In the following sentence, identify the part of speech of the italicized word.Large fish swim swiftly in the sea. A. Pronoun B.
1. 4 answers
2. asked by JAYZ
3. 1,662 views
what kind of landform covers the central part of North America
1. 10 answers
2. asked by dee
3. 1,633 views
What problems did medieval towns face? How did medieval europeans attempt to deal with those problems? How did an independant
1. 5 answers
2. asked by Hi
3. 1,610 views
A tennis player aims to serve the ball horizontally when their racquet is 2.5 m above the ground. The distance from the player
1. 3 answers
2. asked by sue
3. 1,601 views
solve for x:2x+3y=8
1. 3 answers
2. asked by s
3. 1,585 views
if the area of a rectangle is 30 square centimeters and the length is 6 centimeters,use the equation 30=6w to find the width w
1. 2 answers
2. asked by philena
3. 1,567 views
14. As a teacher aide in a multicultural classroom, you should realize thatA. your teacher is the best resource for information
1. 8 answers
2. asked by AspiringTeacherandMotherofFour
3. 1,562 views
The concentration of lead ions (Pb^2+) in a sample of polluted water that also contains nitrate ions (NO3) is determined by
1. 2 answers
2. asked by KELLY
3. 1,530 views
Hey,Can someone take a look at my french below, and let me know what corrections / changes I need to make please? French -
1. 2 answers
2. asked by Adrien
3. 1,518 views
I have a question-I need to compare Spanish nouns in the singular versus plural to English. I know to make it plural in Spanish-
1. 4 answers
2. asked by BethAnne
3. 1,468 views
An uknown substance from planet x has a density of 10g/ml.it occupies a volume of 80ml. what is the mass of this unknown
1. 2 answers
2. asked by gasharee
3. 1,452 views
three circles are externally tangent to each other. The radius of each circle is 6 inches. Find the following:a)the length of
1. 1 answer
2. asked by donna
3. 1,415 views
The education department of state is interested in funding an education assistance program for 12 year-old children whose
1. 1 answer
2. asked by lolli
3. 1,405 views
At time t = 0, a hockey puck is sent sliding in the +x direction over a frozen lake, directly into a strong wind. Figure 2-13
1. 1 answer
2. asked by Lily
3. 1,349 views
A diver running 2.4 m/s dives out horizontally from the edge of a vertical cliff and 2.6 s later reaches the water below. The
1. 1 answer
2. asked by Katie
3. 1,342 views
If a set of displacement vectors laid head to tail forms a closed polygon, the resultant is zero. Is this statement true?
1. 1 answer
2. asked by Anonymous
3. 1,325 views
what is 15.999 rounded to the nearest tenth
1. 1 answer
2. asked by macho
3. 1,313 views
The type of cartilage associated with bone function and development is what?I know that the elastic cartilage contains elastin
1. 1 answer
2. asked by Lena
3. 1,302 views
Emily challenges her husband, David, to catch a $1 bill as follows. She holds the bill vertically, with the center of the bill
1. 1 answer
2. asked by stacy
3. 1,300 views
The first-order reaction, SO2Cl2 �¨ SO2 + Cl2, has a rate constant equal to 2.20 �~ 10-5 s-1 at 593 K. What percentage of the
1. 1 answer
2. asked by JOSEPH
3. 1,279 views
look at the following sentences: 2x7 and 7x3 Are these #s all factors of the same product? Explain your answer.
1. 0 answers
2. asked by Jr.
3. 1,276 views
Need help with this--'Think about how you might update Antigone in a modern setting, either in the US, or in some other part of
1. 1 answer
2. asked by mysterychicken
3. 1,235 views
S.O.S!!! In terms of saving energy, bicycling and walking are far more efficient means of transportation than is travel by
1. 0 answers
2. asked by Frankie
3. 1,228 views
a pyramid has a square base that measures 3 feet on each side. the height of the pyramid is 19 inches. what is the volume?
1. 1 answer
2. asked by margo
3. 1,225 views
solve for g1:F = kg1g2/r2
1. 2 answers
2. asked by p
3. 1,212 views
Hi, Im doing my maths coursework andI need to type in a formula and press enter and then I need "FILL DOWN (CTRL D)". How do I
1. 2 answers
2. asked by Brogan
3. 1,182 views
you have 23- grams sample of ethanol with a density of 0.7893g/ml what volume of ethanol do you have?
1. 2 answers
2. asked by trice
3. 1,168 views
Hi , I am having a hard time understanding the following:Discursive Psychology\Social Representation and Attitude theory.Please
1. 0 answers
2. asked by Cathy
3. 1,164 views
Describe the role of guilds in the trade and production of goods. How did trade and commerce grow during the middle ages?
1. 1 answer
2. asked by Hi
3. 1,144 views
use the prime factorization of each pair of numbers to identify three common factors and three common multiples.a) 14 and 84
1. 2 answers
2. asked by raluca
3. 1,138 views
Highway safety engineers build soft barriers so that cars hitting them will slow down at a safe rate. A person wearing a seat
1. 1 answer
2. asked by Monica
3. 1,134 views
explain the beliefs of Hinduism and its evolution from the aryans to the Guptas.WHO ARE THE ARYANS AND THE GUPTAS? please help
1. 4 answers
2. asked by Christina
3. 1,125 views
Antartica comprises about 10.5% of the total land area on earth. antartica has a surface area of about 5,400,000 square miles.
1. 3 answers
2. asked by miranda
3. 1,113 views
Which of the following sentence contain a fragment?A)To prepare for the 10K race B)Eric eliminated greasy foods from his diet
1. 1 answer
2. asked by Anonymous
3. 1,104 views
A helicopter is lifting off from the ground and is moving vertically upward. The graph shows its vertical velocity vy versus
1. 1 answer
2. asked by Lily
3. 1,104 views
If a 0.5 -mL air bubble is persent in the tip of a buret, what error in 10-mL,20 ml and 40-mL samples will result if the air
1. 3 answers
2. asked by Anonymous
3. 1,092 views
Compute the empty cells. Consider PTN conditions (For SO2, NO, NO2, and C5H8 express the mass concentration in Kg S m-3, Kg N
1. 0 answers
2. asked by lanre
3. 1,083 views
Given a circle with chord AB and diameter CD, prove that triangle ABD is isosceles if AB is perpendicular to CD.
1. 1 answer
2. asked by Peter
3. 1,076 views
The French and Indian war has also been called the "Great War for Empire". Explain why this may be an appropriate name for this
1. 4 answers
2. asked by Maribel
3. 1,071 views
A light green powder is heated in a test tube. A gas is given off, while the solid becomes black. In which classification of
1. 2 answers
2. asked by Kara
3. 1,066 views
A ball is dropped from the same height, but 20feet away from the side of the building. The height y of the ball at time t is
1. 1 answer
2. asked by Anonymous
3. 1,057 views
Which term(s) describe(s) this system?4x + y = 8 3x – 2y = –5 dependent consistent and dependent consistent and independent
1. 1 answer
2. asked by NICK
3. 1,056 views
how were the first civilizations similar and different?They all had a social hierarchy, and some sort of government. The main
1. 3 answers
2. asked by Christina
3. 1,055 views
12.22 A regression was performed using data on 16 randomly selected charities in 2003. The variables were Y = expenses (millions
1. 1 answer
2. asked by Kim
3. 1,054 views
An artillery shell is fired with an initial velocity of 300 m/s at 65.0° abovethe horizontal. To clear an avalanche, it
1. 0 answers
2. asked by Casey
3. 1,046 views
what fraction of the total mass of an 56 Fe atom is due to the electrons? The mass of a proton is 1.673 x10-24 g, of a neurton
1. 1 answer
2. asked by ducky
3. 1,042 views
(b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109?% (c) If the mass of Ag-107 is
1. 3 answers
2. asked by Rebekah
3. 1,041 views
Aluminum sulfate reacts with barium chloride to yield barium sulfate and aluminum chloride. What mass of barium sulfate is
1. 1 answer
2. asked by Tara
3. 1,036 views
Determine whether each of the following numbers is prime or composite(a)219 (b)791 (c) 1001
1. 1 answer
2. asked by Anonymous
3. 1,034 views
A shotputter throws the shot with an initial speed of 15.6 m/s at a 38.0 angle to the horizontal.Calculate the horizontal
1. 0 answers
2. asked by Katie
3. 1,022 views
Take the numbers 4 and 7.If we square them we get 16 and 49, which added together becomes 65. If we add 4 and 7 together first
1. 6 answers
2. asked by daz
3. 1,015 views
What is the chemical equation for white flour?Thanks!
1. 2 answers
2. asked by bob
3. 1,009 views
Describe the daily lives of medieval, europeans, including their homes, occupations, education, and leisure activities
1. 2 answers
2. asked by Hi
3. 1,009 views
A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the
1. 2 answers
2. asked by flame
3. 1,006 views
where is the web page to translate spanish to english
1. 4 answers
2. asked by katherine
3. 999 views
a wheel having diameter 2m starts from rest and accelerates uniformly to an angular velocity of 75 revoulutions per minute in
1. 2 answers
2. asked by vishal
3. 996 views
12) The regression equation Credits = 15.4 - .07 Work was fitted from a sample of 21 statistics students. Credits is the number
1. 1 answer
2. asked by kim
3. 995 views
what is home economics?home economics is and education for better living,and its stufy deals with all aspects of family life.
1. 4 answers
2. asked by sade
3. 989 views
We determine the structure of the Earth's core using:a)deep mine shafts b)satellite imaging c)radar and sonar d)seismic wave
1. 1 answer
2. asked by Layla
3. 989 views
Convert each of the following fractions to decimals that either terminate or repeat(a)3/40 (b)2/13
1. 2 answers
2. asked by Anonymous
3. 987 views
In Figure P4.30, m1 = 10.0 kg and m2 = 4.5 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60
1. 1 answer
2. asked by thomas
3. 980 views
A novice golfer on the green takes three strokes to sink the ball. Thesuccessive displacements are 3.80 m to the north, 1.80 m
1. 1 answer
2. asked by Lexi
3. 979 views
The experiment of Clausen, Keck and Hiesey discussed in lecture and illustrated in Fig. 4.4 of the textbook would be an example
1. 4 answers
2. asked by Tommy
3. 974 views
Which objects in the solar system have been least modified since the formation of the solar system?a)asteroids b)Kuiper Belt
1. 1 answer
2. asked by Alice
3. 972 views
You plan to throw stones by using a sling of length 1.8 m which you whirl over your head. Suppose you wish to throw a stone a
1. 2 answers
2. asked by help
3. 972 views
How would you find the limit of (secx-1)/(x^2) as x goes to 0 algebraically?
1. 2 answers
2. asked by John
3. 955 views
The type of cartilage associated with bone function and development is what?I know that the elastic cartilage contains elastin
1. 0 answers
2. asked by Lena
3. 952 views
A bat flying in a cave emits a sound andreceives its echo 0.4 s later. How far away is the cave wall? Assume the speed of sound
1. 1 answer
2. asked by amber
3. 949 views
A frictionless plane is 10.0 m long and inclined at 33.0°. A sled starts at the bottom with an initial speed of 4.30 m/s up the
1. 1 answer
2. asked by thomas
3. 943 views
Describe Purity Balls and explain their function within their own religious community. Also, discuss how this ritual fulfills
1. 2 answers
2. asked by Boby
3. 932 views
The first-order reaction, SO2Cl2 �¨ SO2 + Cl2, has a rate constant equal to 2.20 �~ 10-5 s-1 at 593 K. What percentage of the
1. 1 answer
2. asked by JOSEPH
3. 930 views
A student accurately uses the method for combining vectors. The two vectors she combines have magnitudes of 55 and 25 units. The
1. 2 answers
2. asked by Anonymous
3. 929 views
If 100.0 J are added to 20.0 grams of water at 30.0 degrees Celsius. What will be the final temperature?
1. 1 answer
2. asked by Kris
3. 925 views
using only words and no numbers how would i explain the steps necesarry to show how many kilograms are in a milligram? thanks :D
1. 2 answers
2. asked by ammmyyy
3. 924 views
1. Why were the colonists unhappy with the fact that their judges' salaries were paid by the king?2. The Declaration was divided
1. 3 answers
2. asked by mysterychicken
3. 911 views
what fraction of the total mass of an 56 Fe atom is due to the electrons? The mass of a proton is 1.673 x 10-24 g, of a neutron
1. 2 answers
2. asked by ducky
3. 905 views
1. For the following exercise, complete the following:a. Find the mean, median, and range for each of the two data sets. b. Find
1. 1 answer
2. asked by trg
3. 900 views
The leg and cast in the figure below weigh 260 N, with the center of mass as indicated by the blue arrow in the diagram. The
1. 0 answers
2. asked by K
3. 890 views
How would you prepare a 250 mL solution of . 45 M from a stock solution of 5.5 M?
1. 4 answers
2. asked by Jrich
3. 883 views

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