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Questions Asked on September 22, 2010

what is the density of an 84.7g sample of an unknown substance if the sample occupies 49.6cm3? what volume would be occupied by
1. 4 answers
2. asked by heather
3. 6,663 views
A mixture of CuSO4 and CuSO4·5 H2O has a mass of 1.235 g. After heating to drive off all the water, the mass is only 0.830 g.
1. 2 answers
2. asked by Noelle
3. 5,307 views
an automobile with an initial speed of 4.30 m/s accelerates uniformly at the rate of 3.00m/s^2. fine the final speed and the
1. 2 answers
2. asked by yy
3. 4,574 views
what is the answer to this riddle?"what is the title of this picture?
1. 10 answers
2. asked by Yuumei
3. 4,266 views
Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun
1. 2 answers
2. asked by Anonymous
3. 3,839 views
The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of
1. 3 answers
2. asked by Anonymous
3. 3,109 views
a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the
1. 7 answers
2. asked by Ray
3. 2,855 views
In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about
1. 14 answers
2. asked by Katherine
3. 2,562 views
A ball is thrown horizontally with an initial velocity of 20.0 m/s from the edge of a building of a certain height. The ball
1. 2 answers
2. asked by sara
3. 2,271 views
If someone could please point me in the right direction on these questions? Please. And thanks in advance!1.One of the reasons a
1. 3 answers
2. asked by Jessie
3. 1,851 views
How do you find a perimeter
1. 4 answers
2. asked by Karina
3. 1,848 views
Fox sees a piece of carrion being thrown from nest and rushes to it. Nest is 14.0 m high and carrion is thrown with a horizontal
1. 1 answer
2. asked by Joelle
3. 1,827 views
Between 20 and 28 students signed up for the chess club.The students could not be divided exactly into groups of 2,3,4, or 5.
1. 7 answers
2. asked by Anonymous
3. 1,777 views
a cookie a certain mass. explain why the mass would not change if you break the cookie in half.
1. 6 answers
2. asked by bethany
3. 1,753 views
A 78-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of
1. 1 answer
2. asked by justin
3. 1,746 views
To stretch a spring 7.00 cm from its unstretched length, 16.0 J of work must be done.What is the force constant of this spring?
1. 1 answer
2. asked by jon
3. 1,695 views
A shotputter throws the shot with an initial speed of 15.5 m/s at a 32.0 degree angle to the horizontal. Calculate the
1. 4 answers
2. asked by brenda
3. 1,694 views
What is the molar mass of glucose, C6H12O6?
1. 1 answer
2. asked by jane doe
3. 1,661 views
If light travels 10,000 km in 3.3 x 10-2 sec, how long will it take light to travel one meter.
1. 3 answers
2. asked by Samantha
3. 1,567 views
as the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s to the 2nd power as it
1. 1 answer
2. asked by Danica
3. 1,546 views
Hello !I need you help my homework By a narrow margin, Dr. Moreau was recently elected chair of the largest academic department
1. 3 answers
2. asked by Washington
3. 1,519 views
Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use
1. 2 answers
2. asked by james
3. 1,508 views
What is a pattern rule 74, 148, 222, ..., 370
1. 2 answers
2. asked by Anonymous
3. 1,459 views
The amount of money M in a piggy bank containing only nickles and dimes d, when there are five more nickels than dimes.
1. 1 answer
2. asked by Matt
3. 1,410 views
The death by bubonic plague of about 1/3 of Europe's population during the fourteenth century is a good example of:A. Abiotic
1. 1 answer
2. asked by Sarah
3. 1,330 views
I previously asked a mythical man question, and I still don't quite understand it.If if takes one person 3 months to make a
1. 1 answer
2. asked by Fayetta
3. 1,324 views
How many different ways can you make change using 25-cents coin using dimes, nickels and pennies?
1. 0 answers
2. asked by Matt
3. 1,318 views
If the ratio of girls to boys on the swim team is 2:3, which of these shows the possible number of girls to boys:A. 20 girls, 35
1. 7 answers
2. asked by Nickie
3. 1,308 views
What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?my teacher said .0015kg times
1. 1 answer
2. asked by Sara
3. 1,288 views
What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?
1. 2 answers
2. asked by Evy
3. 1,285 views
Determine which factors may explain that most of the higher per-pupil expenditures are found in the Northeastern and
1. 3 answers
2. asked by Jasmine
3. 1,258 views
The entire surface of a solid cube with a length of 6 inches is painted. The cube is then cut into cubes each with edge of
1. 1 answer
2. asked by Jackie
3. 1,250 views
A certain car is capable of accelerating at a rate of +0.60 m/s2. How long does it take for this car to go from a speed of 20
1. 1 answer
2. asked by Bill
3. 1,230 views
ammonia gas reacts with copper (ii) oxide at high temperatures to produce elemental nitrogen, copper metal, and water vapor.
1. 2 answers
2. asked by Jack
3. 1,227 views
In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is
1. 1 answer
2. asked by Greg
3. 1,226 views
Kay is making beaded belts for her friends from 6.5 meters of cord. One belt uses 0.625 meter of cord. How many belts can she
1. 4 answers
2. asked by sajkjdmememanns .
3. 1,219 views
In what direction did erectus migrate from Kenya in east Africa to Indonesia
1. 1 answer
2. asked by diamond
3. 1,192 views
What weight of copper(II) oxide, CuO, would theoretically be produced from 1.623 grams of copper? (mol. masses Cu = 63.55; O =
1. 2 answers
2. asked by Marie
3. 1,191 views
The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = -16t2 + 96t,
1. 1 answer
2. asked by erin
3. 1,190 views
HELP! I'm doing a webassign, and am completley lost on these problems. If you could help with any, that would be great.A crate
1. 0 answers
2. asked by Tom
3. 1,185 views
rachelcarson "silent spring"agriculture and the movement that launched the environmental movement.. Question pros&cons of
1. 3 answers
2. asked by Jarrad
3. 1,170 views
number of mole in 850.5g of zinc
1. 1 answer
2. asked by kelveyun
3. 1,166 views
A student bikes to school by traveling first d_N = 1.10 {miles} north, then d_W = 0.500 {miles} west, and finally d_S = 0.200
1. 1 answer
2. asked by Sam
3. 1,156 views
A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is
1. 3 answers
2. asked by Anonymous
3. 1,148 views
This is a limit test for chlorides.1.0g of NaOH sample was dissolved in 5ml of deionized water, acidified with 4ml of dilute
1. 2 answers
2. asked by candy
3. 1,141 views
You have been asked by one of the physicians to research information and recommend a quality control procedure for completing
1. 3 answers
2. asked by tonya
3. 1,136 views
the number of students attending the Fall play was 150 more than the number of adults attending. Student tickets cost $3, and
1. 2 answers
2. asked by rae
3. 1,132 views
What experiment did Matthias Schleiden do?What prior information did he use to help him with his research/discovery? What tools
1. 0 answers
2. asked by Jay
3. 1,125 views
These UV photons can break chemical bonds in your skin to cause sunburn—a form of radiation damage. If the 310 nm radiation
1. 3 answers
2. asked by Bob
3. 1,122 views
3. A 50 unit apartment building has 20 – 1bedroom units; 20 – 2 bedroom units; and 10 - 3 bedroom units. The market price
1. 1 answer
2. asked by Brittany
3. 1,118 views
% of PaupersNative: 51.6 Foreign: 39.3 % of Population Native: 74.5 Foreign: 13.4 How much higher was the proportion of paupers
1. 2 answers
2. asked by Amy~
3. 1,117 views
A trip to the ocean can be a relaxing escape from everyday pressures of life.A sailboat glistening on the horizon provides a
1. 3 answers
2. asked by sib
3. 1,109 views
A projectile is launched from ground level to the top of a cliff which is 195 m away and 155 m high. If the projectile lands on
1. 0 answers
2. asked by Sam
3. 1,109 views
compare and contrast the pros and cons of agriculture
1. 1 answer
2. asked by Jarrad
3. 1,102 views
Did Islam become more less influential in West Africa from the 700s to the 1400s?
1. 1 answer
2. asked by Autumn
3. 1,090 views
find the linear function f(x(=mx+b whose graph has the given slope and y intercept.slope is +19/15 and y-intercept is (0,-4) the
1. 0 answers
2. asked by Anonymous
3. 1,088 views
What opportunities are there for UK firms in China and India?
1. 1 answer
2. asked by Brogan
3. 1,082 views
Hello ! I need help my homeworkUsing a computer to create an ever changing, online yearbook of people with similar interests to
1. 2 answers
2. asked by Washington
3. 1,079 views
An athlete executing a long jumper leaves the ground at a 27.0 degree angle and travels 7.89 m. What was the takeoff speed? If
1. 0 answers
2. asked by cindy
3. 1,077 views
In a local college, 60% of the math majors are women. Fifteen math majors are chosen at random.
1. 1 answer
2. asked by michelle
3. 1,075 views
What are some facts about edgar allen p's story Never bet the Devil your head?
1. 2 answers
2. asked by jamica
3. 1,054 views
calculate the density of 50.0 mg of a gas which occupies a volume of 0.0064 L.
1. 1 answer
2. asked by Charity
3. 1,017 views
Round to the nearest hundred and the nearest tenth. 625
1. 2 answers
2. asked by Kelsey
3. 1,009 views
Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4.5H2O, which can be filtered
1. 1 answer
2. asked by Kaylee
3. 1,004 views
How do you make animated computer graphics, ya know, the ones that move? :S Please answer!!! xDWith love, Pancake
1. 1 answer
2. asked by The Official Pancake Queen
3. 1,001 views
Having problems with proving segment relationships in paragraph proof forms in geometry.
1. 1 answer
2. asked by Colt
3. 994 views
Factor the expression: 4n^3 + 8n^2 - 5n - 10(n+2)(4n^2 - 5)?
1. 2 answers
2. asked by Lily
3. 994 views
For the Richard Cory poem:1) What is the denotation of "crown" in this use? "sole to crown" -- Would it be that they thought him
1. 5 answers
2. asked by Amy~
3. 983 views
find an equation of the line containing the giving pair of points (-2,-1),(-7-8) the equation of the line in slope =intercept
1. 1 answer
2. asked by Anonymous
3. 982 views
12.0 g of carbon reacts with 32.0 g of oxygen to form 44.0 g of Co2. if we react 20.0 g of oxygen with 20.0 g of carbon,how many
1. 1 answer
2. asked by priya
3. 978 views
Write each possessive noun or contraction with an apostrophe.1. Woodrow Wilson was Americas twenty-eighth president. America's
1. 3 answers
2. asked by TiffanyJ
3. 964 views
An elevator without a ceiling is ascending with a constant speed of 9.7 m/s. A boy on the elevator shoots a ball directly
1. 0 answers
2. asked by kay
3. 963 views
I have to write Anecdote and I choose "you can always count on your friend" However my teacher said that Anecdote is not
1. 1 answer
2. asked by Amy
3. 959 views
What does Pig ears stand for?
1. 4 answers
2. asked by Dylan
3. 953 views
choose the most effenctive thesis sentence from the following: a. i leared a valuable lesson. or b. life is full of valuable
1. 1 answer
2. asked by martine
3. 948 views
The position of a particle moving in a straight line during a 2-second trip is given below.s(t) = 2t 2 - 6t + 7 cm (a) What is
1. 2 answers
2. asked by Mike
3. 939 views
A 48 kg skier skis directly down a frictionless slope angled at 5° to the horizontal. Assume the skier moves in the negative
1. 1 answer
2. asked by John
3. 936 views
Two blocks each of mass m = 4.10 kg are fastened to the top of an elevator as in the figure below.(a) If the elevator
1. 2 answers
2. asked by miles
3. 934 views
The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of
1. 1 answer
2. asked by emma
3. 932 views
The US inflation rate had been 3.5 % per year and the Argentinian inflation rate had been 36 % per month.(a) What is the yearly
1. 2 answers
2. asked by anonymous
3. 917 views
What are the barriers to entry to markets for China and India?
1. 3 answers
2. asked by Brogan
3. 915 views
The speed of a pitched baseball is 46.0m/s. You want to know how fast is your school's star baseball pitcher could throw. You
1. 1 answer
2. asked by Shaila
3. 911 views
How is 3x2 different from 3 to the 2nd power ?
1. 2 answers
2. asked by Rose
3. 909 views
A mass, m1 = 5.00 kg, resting on a frictionless horizontal table is connected to a cable that passes over a pulley and then is
1. 0 answers
2. asked by Chubba
3. 904 views
What are the differences between Carl Rogers Humanistic theory and Alfred Adler Individualism. What are the similarites between
1. 1 answer
2. asked by Dee
3. 878 views
Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of
1. 1 answer
2. asked by Anonymous
3. 875 views
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height
1. 2 answers
2. asked by Anonymous
3. 871 views
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a
1. 0 answers
2. asked by Axel
3. 868 views
Homework Help Forum: Algebra-Please help-I'm confusedPosted by Tom on Tuesday, September 21, 2010 at 8:09pm. This deals with
1. 1 answer
2. asked by Tom
3. 862 views
in a experiment to detrmine the acceleration of free fall 'g' a student attached a length of ticker tape to a metal ball. when
1. 0 answers
2. asked by chelsea
3. 860 views
A batch of concrete is made by mixing 1 part cement, 2.5 parts sand, and 3.5 parts gravel. How many pounds of sand and gravel
1. 3 answers
2. asked by Kimmie
3. 840 views
A manufacturer makes two models of an item: model I, which accounts for 80% of unit sales, and model II which accounts for 20%
1. 0 answers
2. asked by Lori
3. 836 views
Tyrell says $750 is about $800.Sara says $750 is about $700.who is correct?explain.
1. 4 answers
2. asked by joel
3. 826 views
A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the
1. 1 answer
2. asked by morgan
3. 822 views
Here's the answer from yesterday:spanish1 homework check - SraJMcGin, Tuesday, September 21, 2010 at 4:58pm 1. son las, etc. To
1. 2 answers
2. asked by SraJMcGin
3. 822 views
This has to do with my last Calculus problem. I need help on it..The part I replied to after you answered the question.
1. 2 answers
2. asked by Leanna
3. 820 views
Mrs. Bradner has 30 tomato plants . She wants to plant the same number of plants in each row of her garden. Explain how she
1. 2 answers
2. asked by Christian
3. 812 views
The determined Wile E. Coyote is out once more to try to capture the elusive roadrunner. The coyote wears a new pair of Acme
1. 0 answers
2. asked by julymoe
3. 800 views
A small steel ball bearing with a mass of 10 g is on a short compressed spring. When aimed vertically and suddenly released, the
1. 0 answers
2. asked by Anonymous
3. 796 views
A block of metal has a width of 3.2 , a length of 17.1 , and height of 4.8 . Its mass is 1.2 . Calculate the density of the
1. 2 answers
2. asked by Anonymous
3. 787 views

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