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Questions Asked on January 21, 2015

What are 5 key accomplishments of Marie and/ or Pierre Curie?
1. 13 answers
2. asked by jeje
3. 11,823 views
Every year in Delaware there is a contest where people create cannons and catapults designed to launch pumpkins as far in the
1. 27 answers
2. asked by Veronica
3. 10,342 views
In invierno tardio by antonio colinas what is he comparing his spirit to?No es increíble cuanto ven mis ojos: nieva sobre el
1. 12 answers
2. asked by Lenny
3. 10,187 views
A string is cut into two parts.The ratio of lengths of the string and the smaller part is six times the ratio of lengths of the
1. 1 answer
2. asked by nisha
3. 9,438 views
Bromine is a reddish-brown liquid. Calculate its density (g/mL) if 586g of the substance occupies 188 mL.
1. 3 answers
2. asked by Barbara
3. 8,216 views
if the following amounts of lumber need to be delivered to 2 different staging areas at 4 different job sites, how many total
1. 8 answers
2. asked by Tom Jones
3. 6,667 views
The following data are for a liquid chromatographic column:Length of packing (L) 24.7 cm Flow rate 0.313 mL/min VM 1.37 mL VS
1. 3 answers
2. asked by Kurt
3. 5,556 views
the width of a poster board is 30 inches. using scissors you reduce the width of the poster board to 10 inches what is the scale
1. 5 answers
2. asked by Please Help
3. 5,489 views
What is a concrete poem?A. A poem that provides concrete images as opposed to abstract ideas. B. A poem that uses a strict
1. 30 answers
2. asked by Helper
3. 5,170 views
The sum of multiples of 6 between 6 & 999?I got 83166, but my answer key says 82665.. Is my answer wrong? I used the term
1. 3 answers
2. asked by Wendy
3. 5,040 views
Which of the following is always true about a haiku?A. It has one three-line stanza. B. It has a specific rhyme scheme of abab.
1. 16 answers
2. asked by Callie
3. 4,836 views
Emily spent 1/2 of her money at the grocery store. Then, she spent 1/2 of what was left at the baker. Next she spent 1/2 of what
1. 10 answers
2. asked by Tammy
3. 4,566 views
A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculatea) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml
1. 1 answer
2. asked by Sam
3. 4,529 views
A piece of wire 100 cm long is cut into two pieces. One piece is bent to form a square and the other to form a circle. Let x
1. 1 answer
2. asked by Nadia
3. 3,778 views
A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water
1. 2 answers
2. asked by bill
3. 3,394 views
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram
1. 1 answer
2. asked by mathew
3. 3,216 views
9.FM signals travel as changes in (1 point) A.the speed of the wave. B.the amplitude of the wave. C.the frequency of the
1. 8 answers
2. asked by jeje
3. 3,074 views
6. Which best describes rhythm in poetry?A. a beat created by stressed and unstressed syllables B. a repetition of vowel and and
1. 2 answers
2. asked by Helper
3. 3,074 views
how many times heavier is a 16 1/2 pound rock than a 10 1/2 pound rock?
1. 7 answers
2. asked by Anonymous
3. 3,054 views
Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M TI3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find
1. 1 answer
2. asked by Daniel
3. 2,977 views
The number of roses Mr. Adams ordered for his store was three times as many as the number of daisies ordered he awarded a total
1. 7 answers
2. asked by jaiya
3. 2,947 views
There are 6 muffins in a package.How many packages will be needed to feed 48 people if each person has 2 muffins?A.4 B.8 C.16
1. 18 answers
2. asked by samuel
3. 2,932 views
7.Which of the following correctly describes a gamma ray? (1 point) A.long wavelength and low frequency B.long wavelength and
1. 3 answers
2. asked by jeje
3. 2,925 views
A solution of HClO4 was standardized by dissolving 0.3745 g of primary standard grade HgO in a solution of KBr.The liberated OH-
1. 2 answers
2. asked by Smile
3. 2,862 views
How does radioactivity make it possible to understand how Earth can be so old and still have a hot interior? (1 point)A.Radioact
1. 3 answers
2. asked by jeje
3. 2,842 views
Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with
1. 4 answers
2. asked by stephanie
3. 2,767 views
Camp Oaks gets 32 boxes of orange juice and 56 boxes o apple juice.Each shelf in the cupboard can hold 8 boxes of juice. What is
1. 14 answers
2. asked by samuel
3. 2,736 views
5.The pitch of the siren of a moving fire truck changes from high to low as the fire truck passes by. What property of a sound
1. 4 answers
2. asked by jeje
3. 2,718 views
Marie and Pierre Curie noticed burns on their fingers after handling test tubes containing radioactive substances. This
1. 4 answers
2. asked by jeje
3. 2,705 views
Describe the vertical asymptote(s) and hole(s) for the graph of .y=(x-3)(x-1)/(x-1)(x-5)A. asymptote: x = 5 and hole: x = 1 B.
1. 2 answers
2. asked by stephanie
3. 2,663 views
Melba rode her bike 7 / 8 mile in 1/ 4 hour what is the unit rate in miles per hour
1. 5 answers
2. asked by Gracie
3. 2,653 views
A 12.42 gram sample of a mixture of NaCl and CaCl2 is dissolved in water and all the chloride is precipitated as AgCl. If the
1. 1 answer
2. asked by Anonymous
3. 2,627 views
1.A weatherman reports, “The storm waves are about 2 meters high and about 35 meters apart.” What properties of waves is the
1. 0 answers
2. asked by jeje
3. 2,585 views
I am a 2-digit even number. I am less than. 60. Add my digits to get 12. Subtract one of my digits from the other to get 4. What
1. 3 answers
2. asked by aryan
3. 2,551 views
What is the principle role of a tower within a cellular system? (1 point)A.to track data usage*** B.to transmit signals C.to
1. 5 answers
2. asked by jeje
3. 2,536 views
6.Sonar is used to inspect pipelines and bridge foundations. In this scenario, sonar takes advantage of the fact that (1 point)
1. 4 answers
2. asked by jeje
3. 2,463 views
which equation represents the line that passes the point (1,5) and has a slope of negative 2?a) y=2x+7 b) y=-2+11 c) y=2x-9 d)
1. 5 answers
2. asked by Santiago
3. 2,426 views
A solution of ammonia and water contains 3.80×1025 water molecules and 5.80×1024 ammonia molecules. How many total hydrogen
1. 1 answer
2. asked by todd
3. 2,395 views
Suppose a coin is dropped from the top of the Empire State Building in New York, which is 1454 feet tall. The position function
1. 1 answer
2. asked by Pax
3. 2,291 views
Henri Becquerel expected to see only weak images on the photographic plate containing the uranium salt because he thought (1
1. 5 answers
2. asked by jeje
3. 2,246 views
2.Soundproof rooms take advantage of which property of waves? (1 point) A.absorption*** B.regular reflection C.Refraction
1. 3 answers
2. asked by jeje
3. 2,113 views
In a physics lab, students are asked to predict how the acceleration of the block sliding up a ramp compares to the acceleration
1. 5 answers
2. asked by Anonymous
3. 2,072 views
1. Using the same shape of furniture is an example of which of the following?modern ----- my answer sleek uniform colonial 2.
1. 4 answers
2. asked by Sara
3. 2,053 views
When Hurricane Andrew struck Florida in 1992, many people were responsible for the safety of its citizens. Which was a primary
1. 7 answers
2. asked by Ruby :)
3. 2,029 views
Jim bought 3 1/2 pounds of apples, 2 3/4 pounds of oranges, 1 1/4 pounds of grapes, and 2 5/8 pounds of bananas. If Jim gives
1. 2 answers
2. asked by Anonymous
3. 1,964 views
Piece of paper is 0.0075 inch thick. How many sheets of paper will be in a stack that is 2.25 inches high?
1. 3 answers
2. asked by Steve
3. 1,954 views
A) Identify the question, population, and sample.b) Discuss any potential bias or lurking variables that may affect the
1. 3 answers
2. asked by Kathryn
3. 1,912 views
A 0.8743 g sample of KHP was titrated 42.45-mL of NaOH solution until the phenolphthalein endpoint. What is the molarity of the
1. 2 answers
2. asked by Anonymous
3. 1,892 views
14.The speed of sound depends on (1 point) A.the loudness of the sound. B.the pitch of the sound. C.the source of the sound.***
1. 5 answers
2. asked by jeje
3. 1,872 views
A 5.00 g mixture of methane (CH4) and ethane (C2H6) is combusted in oxygen gas to produce carbon dioxide and water. If 14.09 g
1. 2 answers
2. asked by Ana
3. 1,840 views
What role did the waterways of Europe play in the development of it's economy?
1. 1 answer
2. asked by Christina
3. 1,811 views
How would you know if a salt will produce a neutral, acidic or basic solution? I am quite confused. I know you first break them
1. 1 answer
2. asked by Sara
3. 1,758 views
The Ksp of Ni(CN)2 is 3.0 × 10−23. What isthe molar solubility of Ni(CN)2 in a 0.065 M KCN solution? Answer in units of
1. 2 answers
2. asked by Q
3. 1,732 views
Roses cost $5 each and geraniums cost $3 each. Michelle bought 4 more geraniums than roses and spent a total of $52. How many
1. 2 answers
2. asked by dakota
3. 1,719 views
A motorcycle has a mass of 250kg. It goes around a 13.7 m radius turn at 96.5 km/hr. What is the centripetal force?a. 2.95x10^3
1. 1 answer
2. asked by Brooke
3. 1,575 views
pecans priced at $5.85 per pound are mixed with almonds priced at $4.93 per pound to make a 40 pound mixture that will sell for
1. 3 answers
2. asked by Carlos Gomez
3. 1,527 views
Hi, I'm learning about simple harmonic motion of a mass-spring system and I've been working at 2 problems for the past hour. I
1. 1 answer
2. asked by Elizabeth
3. 1,521 views
A saturated solution of CaF2 (of MW 78.0g/mol) contains 0.0167 grams per liter. What is the solubility product constant of CaF2?
1. 1 answer
2. asked by Edwin
3. 1,518 views
Solve this system of linear equations.* Used the substitution method 3x - y = 8 4x - y = -15
1. 4 answers
2. asked by Lucina
3. 1,514 views
If rabbit hop 2m and how much it will travel in 1 km
1. 3 answers
2. asked by urooj
3. 1,504 views
At the library, the quickest way to locate varied, reliable information for your research paper is toA. check the encyclopedias.
1. 3 answers
2. asked by Victor
3. 1,470 views
Light is incident from air onto a flat transparent slab of material, at an angle of 62.2° with the normal. The reflected ray
1. 1 answer
2. asked by Ted
3. 1,459 views
A page that is x inches wide and y inches high contains 30 square inches of print. The margins at the top and bottom are 2
1. 1 answer
2. asked by Anonymous
3. 1,425 views
Calculate the percentage of by mass of nitrogen in ammonium nitrate Nh4 No3
1. 2 answers
2. asked by Victoria
3. 1,369 views
A train whistle is heard at 280Hz as the train approaches town. The train cuts its speed in half as it nears the station, and
1. 0 answers
2. asked by henry
3. 1,358 views
I don't understand how to do these problems:Find two pairs of polar coordinates for each point with the given rectangular
1. 1 answer
2. asked by Heather
3. 1,339 views
(1 pt) At the surface of the ocean, the water pressure is the same as the air pressure above the water, about 15lb/in2, Below
1. 1 answer
2. asked by Anonymous
3. 1,338 views
Pepsin,which speeds up the breakdown of protein,is classified as
1. 1 answer
2. asked by Lydia
3. 1,317 views
Lee wants to cut this piece of canvas into two rectangles that are 3×2 and 3×5. He wants the sum of the areas of the two small
1. 3 answers
2. asked by dee
3. 1,298 views
An ice cream stand has nine different flavors. A group of children come to the stand and each buys a double scoop cone with two
1. 1 answer
2. asked by Poppy
3. 1,295 views
3.When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate heat, the sound
1. 2 answers
2. asked by jeje
3. 1,252 views
You set your stationary bike on a high 80 N friction like resistive force and cycle for 30 min at speed of 8 m/s. Your body is
1. 1 answer
2. asked by bill
3. 1,242 views
Lisa works 7 hours a day, 7 days a week. How many hours does Lisa work in 6 weeks?
1. 7 answers
2. asked by Anonymous
3. 1,205 views
The Tampa Port Authority is one of the largest ports in Florida. It has been given the designation of special purpose district
1. 1 answer
2. asked by Ruby :)
3. 1,190 views
A point on a wheel rotating at 5revs/s is located 0.20m away from the axis. What is the centripetal acceleration?a. 198m/s^2 b.
1. 1 answer
2. asked by Brooke
3. 1,190 views
A) Identify the question, population, and sample.b) Discuss any potential bias or lurking variables that may affect the
1. 1 answer
2. asked by Kathryn
3. 1,188 views
Which of the following is an issue that would need to be determined by Constitutional law?A city wants to review articles about
1. 5 answers
2. asked by jeje
3. 1,173 views
Butanoic acid (Ka = 1.52 x 10-5) has a partition coefficient of 3.0 (favouring benzene) whendistributed between water and
1. 1 answer
2. asked by Daniel
3. 1,153 views
The concentration C of a chemical in the bloodstream t hours after injection into muscle tissue is C=3t^2+t/ t^3+50A. Determine
1. 2 answers
2. asked by Sam
3. 1,150 views
A) Identify the question, population, and sample.b) Discuss any potential bias or lurking variables that may affect the
1. 2 answers
2. asked by Kathryn
3. 1,047 views
A company produces portable cassette players estimates that the profit P (in dollars) for selling a particular model is
1. 1 answer
2. asked by Sam
3. 1,024 views
What time of year does snow come to the far north?
1. 4 answers
2. asked by Danny
3. 1,024 views
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates
1. 1 answer
2. asked by Isaiah
3. 993 views
The average age of the groom at a first marriage for a given age of the bride can be approximated by the model
1. 1 answer
2. asked by Eli
3. 966 views
Lisa evaluated the expressions 2x and x squared for x=2 and found that both expressions were equal to 4. Lisa concluded that 2x
1. 1 answer
2. asked by Will
3. 960 views
The distance from City Y to City Z is 2.25 inches on the map. The actual distance is 45 miles. The distance from City X to City
1. 2 answers
2. asked by harrison
3. 911 views
Which is the best example of a simile?A. Marty's shout rattled the windows. B. Her voice was as clear as a bell. C. He is a bear
1. 2 answers
2. asked by Callie
3. 893 views
A rectangular barge floats in freshwater. When a 400 kg block is loaded on the 5 m long by 2 m wide barge,the barge sinks a few
1. 0 answers
2. asked by Kareem
3. 892 views
How much energy (in kilojoules) is released when 15.2g of steam at 114.5∘C is condensed to give liquid water at 63.5∘C? The
1. 2 answers
2. asked by David
3. 890 views
five more than the product of 13 and Malik's age
1. 4 answers
2. asked by bard
3. 890 views
A child swings from a rope of length L. If she starts her swing with the rope horizontal what is her acceleration at the bottom
1. 1 answer
2. asked by Brooke
3. 883 views
As part of a data base on new births at a hospital some variables recorded are the age of the mother, marital status of the
1. 1 answer
2. asked by john
3. 878 views
Two hundred tickets were sold for a concert. Forty percent of the tickets were pre-sold. How many tickets were sold at the door?
1. 3 answers
2. asked by Amy
3. 875 views
* Note to Sra: I saw your replies to my previous post. They were very useful! I am posting a new question as the questions are a
1. 4 answers
2. asked by Lucina
3. 866 views
Which of the following is true about DNA?It is a single-stranded molecules Only one of the original DNA strands acts as a
1. 1 answer
2. asked by Sara
3. 856 views
Determine whether each of the following statements is true or false.A concave mirror never forms an enlarged real image of a
1. 0 answers
2. asked by physics
3. 856 views
What is the correct simplification of 5.4x 10^12/ 1.2x 10^3 written in scientific notation?
1. 1 answer
2. asked by Steve
3. 849 views
Which is the best example of the use of rhyme?A. The beat of the drum. B. Fresh green grass. C. A wild little child. D, The
1. 1 answer
2. asked by Callie
3. 847 views
A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.80 10-9 N
1. 0 answers
2. asked by Anonymous
3. 838 views
Charles Schenck was a U.S. citizen and private in the Army. While in military training during World War I, Schenck printed and
1. 2 answers
2. asked by jeje
3. 836 views

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