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Questions Asked on March 14, 2010

How many carbon tetrachloride (CCl4) molecules are in 3.00 mol of CCl4? How many carbon atoms? How many chlorine atoms? How many
1. 2 answers
2. asked by Astrid
3. 5,709 views
A 40 W (120V) light bulb has a tungsten filament of thickness 0.035 mm. The filament's operating temperature is 1500 degrees C.P
1. 3 answers
2. asked by JOTHEY
3. 5,585 views
Determine the number of molecules of ethanol (C2H5OH) in 47.0 g.Can someone explain to me how to do this?
1. 2 answers
2. asked by Lola
3. 5,191 views
Suppose that a polynomial function of degree 4 with rational coefficients has i and (-3 + square root of 3)as zeros find the
1. 1 answer
2. asked by Arielt
3. 4,416 views
How do I solve the following?sec 3 theta/2 = 2 on the interval 0<theta<2 pi? I tried to look in my textbook but it doesn't have
1. 1 answer
2. asked by Katie
3. 3,124 views
Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to any potential
1. 9 answers
2. asked by pam
3. 3,064 views
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no
1. 2 answers
2. asked by Tom
3. 2,791 views
Convert the number to the indicated base.53six to base three
1. 2 answers
2. asked by Tyga
3. 2,577 views
If one micrometeorite (a sphere with a diameter of 1.0 multiplied by 10-6) struck each square meter of the moon each second, it
1. 1 answer
2. asked by shanster
3. 2,560 views
4)Explain why,when a soccer ball is kicked, the action and reaction forces don't cancel each other.a)The force of the player's
1. 2 answers
2. asked by Ira
3. 2,298 views
Frank wants to buy a $10,000 car. The car dealer offers him financing of 60 payments at 9% interest. What will his payments be
1. 3 answers
2. asked by Courtney
3. 2,241 views
Air isn't a perfect electric insulator, but it has a very high resistivity. Dry air has a resistivity of approximately 3 x 10^13
1. 2 answers
2. asked by JOTHEY
3. 2,138 views
A statistics practitioner would like to estimate a population mean to within 50 units with 99% confidence given that the
1. 2 answers
2. asked by Tom
3. 2,048 views
A cold metal bar at -30 degrees Celsius is submerged in a pool maintained at a temperature of 40 degrees Celsius. Half a minute
1. 2 answers
2. asked by Debbie
3. 1,851 views
John forgot to pay his $364.00 income tax on time. The IRS charged a penalty of 12% for the 55 days the money was late. Find the
1. 2 answers
2. asked by Tyga
3. 1,837 views
How do I start out writng a paragraphon a subject, Food Safety? * Subject: food safety * Occasion: aftermath of an outbreak of
1. 2 answers
2. asked by Betty
3. 1,788 views
The maximum lift force on a bat is proportional to the square of its flying speed v. For the hoary bat (Lasiurus cinereus), the
1. 5 answers
2. asked by Ana
3. 1,662 views
use the factor theorem to determine whether x-c is a factor of f(x)=x^3+8x^2-18x+20; x-10.
1. 2 answers
2. asked by Paris
3. 1,652 views
Write the numeral in base ten.130five A) 40 B) 60 C) 640 D) 650 I got A)40
1. 2 answers
2. asked by Tyga
3. 1,625 views
A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 150 m, at what
1. 1 answer
2. asked by jade
3. 1,617 views
2. You charged $ 1,000 on your credit card for Christmas presents. Your credit card company charges you 16 % annual interest,
1. 1 answer
2. asked by ananoumous
3. 1,588 views
Calculate the following:a) Determine the sample size necessary to estimate a population mean to within 1 with a 90% confidence
1. 2 answers
2. asked by Tom
3. 1,552 views
A roller coaster has a vertical loop with radius 17.9 m. With what minimum speed should the roller coaster car be moving at the
1. 1 answer
2. asked by jade
3. 1,529 views
A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet. How many dogs are there and how many birds?
1. 1 answer
2. asked by Tyga
3. 1,488 views
use the factor theorem to determine whether x-c is a factor of f(x)f(x)=x^3+8x^2-18x+20; x-10 I have a doubt in my answer, i
1. 5 answers
2. asked by Rose
3. 1,338 views
) What is your Average Payment Period if your Accounts Payable are $20,000, cost of Goods Sold is $200,000, and Sales are
1. 0 answers
2. asked by Vicky
3. 1,329 views
A skier of mass 70.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60 m up a 38°
1. 6 answers
2. asked by shanster
3. 1,323 views
What examples of rhetorical devices did you hear in the speech by Ronald Reagan? What type of rhetorical devices did he employ
1. 2 answers
2. asked by Danielle Banks
3. 1,296 views
A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet. How many dogs are thereand how many birds? A) 7 dogs
1. 4 answers
2. asked by Tyga
3. 1,257 views
a scientist wants to make a solution of tribasic sodium phosphate ,Na3PO4, for an experiment. how many grams of Na3PO4 will be
1. 2 answers
2. asked by kathryn
3. 1,231 views
In the princess bride, how are the characters altered to fit the parody style of the movie.
1. 1 answer
2. asked by Layla
3. 1,219 views
A satellite of mass 220 kg is launched from a site on Earth's equator into an orbit at 200 km above the surface of Earth.(a)
1. 17 answers
2. asked by Ana
3. 1,200 views
syringe filled with water and left by the sink in the sunshine. Ten minutes later sees little puddle of water under the syringe
1. 1 answer
2. asked by Michelle
3. 1,200 views
The CM of an empty 1300 kg car is 2.40 m behind the front of the car. How far from the front of the car will the CM be when two
1. 2 answers
2. asked by Anonymous
3. 1,190 views
In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.4 cm. A second
1. 0 answers
2. asked by Anonymous
3. 1,148 views
An electron and a proton execute uniform circular motion in the presence of a uniform magnetic field.If the radius of the circle
1. 2 answers
2. asked by Sandra
3. 1,110 views
A long jumper's take-off velocity is 10 m/s at an angle of 20o to the horizontal. His centreof gravity is 1 m above the ground
1. 1 answer
2. asked by intan
3. 1,061 views
• Create a 4- to 6-slide Microsoft® PowerPoint® presentation of the content for the learning packet by addressing the
1. 2 answers
2. asked by scooby
3. 1,058 views
did i order the intermolecular forces correctlyion-ion > ion-dipole force > dipole-dipole >ion-induced dipole> dipole-induced
1. 1 answer
2. asked by eng
3. 1,048 views
what is the pressure of H2 if the hydrogen gas collected occupies 14L at 300K and was produced upon reaction of 4.5 mol of Al?
1. 1 answer
2. asked by brenda
3. 1,018 views
Under whose reign did the Persian empire become the greatest military power of the ancient world?
1. 1 answer
2. asked by Paige
3. 1,009 views
An advertisement claims that a particular automobile can "stop on a dime". What net force would actually be necessary to stop an
1. 3 answers
2. asked by Jess
3. 1,009 views
Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and
1. 0 answers
2. asked by ana
3. 1,005 views
I'm having a tough time brainstorming ideas about the four stress factors.I have to know why it's important for people to learn
1. 6 answers
2. asked by AL 87
3. 1,005 views
2. Suppose the DNA molecule were composed of six monomers. In addition to the monomers A, T, C and G, two other monomers, O and
1. 2 answers
2. asked by Tom
3. 971 views
Identify the sentence with correct pronoun-antecedent agreement.a)Neither of the boys submitted his essay on time. b)Neither of
1. 3 answers
2. asked by pam
3. 945 views
A 3-year magazine subscription costs $123 and may be canceled at any time, and a prorated refund will be made for the remaining
1. 1 answer
2. asked by jene
3. 923 views
If a sample of BaSO3 is found to contain 1.73 · 1018 SO32- ions how many moles of Ba2+ ions are present? Express your answer in
1. 7 answers
2. asked by echem
3. 900 views
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones.What is the minimum number of
1. 1 answer
2. asked by thommini
3. 887 views
I need 3 themes and 4 quotes per theme for the book the bluest eye by toni morrison. i have one theme completely done. my other
1. 5 answers
2. asked by Melanie
3. 877 views
I have to write the sentence "You (plural) need to make up your own mind" in french using "il faut que" and "prendre tes propres
1. 1 answer
2. asked by Leah
3. 874 views
A man entered an apple orchard through 7 gates. After picking some apples, he left. Upon leaving, he was required to give 1/2 of
1. 1 answer
2. asked by Joey
3. 865 views
Aspirin equilibrium is : HC9H7O4(aq) + H2O (double arrow)C9H7O4^-(aq) + H3O^+You have 2 tablets each containing 0.325g of active
1. 1 answer
2. asked by Alan
3. 853 views
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into
1. 1 answer
2. asked by Anonymous
3. 847 views
Which of the following statements are true of a “two-for-one stock split?”:1. It may signal higher future earnings 2. By
1. 1 answer
2. asked by Donald
3. 842 views
Identify the sentence with correct subject-verb agreement.a)The crowd was yelling, "De-fense, de-fense." b)The crowd were
1. 1 answer
2. asked by pam
3. 833 views
1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could
1. 0 answers
2. asked by Tom
3. 821 views
A 64 kg bicyclist rides his 7.7 kg bicycle with a speed of 13.5 m/s.How much work must be done by the brakes to bring the bike
1. 1 answer
2. asked by Physicster
3. 816 views
The active ingredient of the antacid is CaCO3 and so Sally chose titration with HCl as a method for analysis. What is the mass
1. 1 answer
2. asked by Cody
3. 806 views
if cot(- theta) = 7.89, find tan(theta- pi/2)
1. 0 answers
2. asked by hilde
3. 800 views
how would you factorisea) 9x^2 - 49 b) 9x^2 - 121 c) 49x^2 - 25x^2 thankyou
1. 1 answer
2. asked by david
3. 794 views
A trapezoid has height 8 and area 28.What are the lengths of its bases
1. 1 answer
2. asked by NEL
3. 793 views
what did freedom to former slaves and how did their lives change in the aftermath of the civil war? also could the federal
1. 2 answers
2. asked by Dellaine
3. 792 views
The area of a circle that has a circumference of 12 pi cm is ______ pi m squared?
1. 1 answer
2. asked by Gene
3. 792 views
Calculate the power output of a 1.0 g fly as it walks straight up a window pane at 2.6 cm/s.I have no idea how to figure out
1. 1 answer
2. asked by Robert C
3. 788 views
How do you do the little number cite next to a qoute in a research paper in microsoft word?
1. 4 answers
2. asked by mic
3. 774 views
Suppose that a polynomial function of degree 4 with rational coefficients has i and (-3 + square root of 3)as zeros find the
1. 1 answer
2. asked by Arielt
3. 767 views
The heat capacity of a mercury thermometer is approximately equal to the volume immersed in metre cube multiplied by a constant
1. 1 answer
2. asked by Edwin
3. 760 views
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and
1. 2 answers
2. asked by Anonymous
3. 746 views
What is the mass of a mole of electrons if one electron has a mass of 9.11 x 10^-28 g?
1. 1 answer
2. asked by Jenny
3. 745 views
Happy Pi Day to all math "nerds"Even Google changed their log today. http://www.squidoo.com/PiDay
1. 2 answers
2. asked by Reiny
3. 740 views
The mass m(t) remaining after t days from a 70 g sample of thorium-234 is given by the equation shown below.m(t) = 70e-0.0274t
1. 1 answer
2. asked by Anonymous
3. 738 views
Barbara knows that she will need to buy a new car in 4 years. The car will cost $15,000 by then. How much should she invest now
1. 1 answer
2. asked by Tyga
3. 732 views
list the potential rational zeros of the polynomial function, do not find the zeros.f(x)=x^5-5x^2+4x+3
1. 0 answers
2. asked by Paris
3. 719 views
The frequency of circular motion for a charged particle moving around in the presence of a uniform magnetic field does not
1. 0 answers
2. asked by Stephanie
3. 712 views
Sally is goint to determine the quantity of MgSO4 by titrating the Mg2+ ions using EDTA. What is the concentration of Mg2+ (in
1. 1 answer
2. asked by Cody
3. 711 views
Early one October you go to a pumpkin patch to select your Halloween pumpkin. You lift the 2.8 kg pumpkin to a height of 1.27 m,
1. 2 answers
2. asked by Physics Nerd
3. 710 views
What volumes of 0.53 M HNO2 and 0.46 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.55?HNO2
1. 2 answers
2. asked by jacky
3. 704 views
what is the pH of .28 M HNO3 (aq) at 25 degree celsius? (Kw = 1.0 x 10 ^-14)
1. 1 answer
2. asked by elizabeth
3. 702 views
A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially
1. 2 answers
2. asked by Anonymous
3. 695 views
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and
1. 2 answers
2. asked by Anonymous
3. 692 views
Identify the complete verb: Max will be arriving on a flight this afternoon.a)will be b)will c)arriving d)will be arriving I
1. 1 answer
2. asked by pam
3. 686 views
simplify to a constant or trig func.1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a
1. 0 answers
2. asked by hilde
3. 685 views
Hello. I was wondering if someone can review my attempt to scan & indicate the ryhme scheme of the following lines from John
1. 3 answers
2. asked by Tamir
3. 684 views
3. You decide to borrow $200,000 to build a new house. The bank charges an interest rate of 6% compounded monthly. If you pay
1. 0 answers
2. asked by ananoumous
3. 682 views
can u give me atleast 6 strategies. I have to write a 6 page essay and i have done 2 page so far but i still need more
1. 7 answers
2. asked by Thara!
3. 682 views
Gold ions (Au+) are accelerate to high speeds using electric fields.These ions are then passed through a region where uniform
1. 1 answer
2. asked by lauren
3. 678 views
The diameter of a wire should be 8 cm. It follows a normal distribution and has a standard deviation of 0.01 cm.A person tests
1. 1 answer
2. asked by Allan
3. 676 views
11. You are searching for a gene that traces its ancestry to an ancient gene in fish. Evolutionarily older fish, like the
1. 0 answers
2. asked by Lisa
3. 672 views
Two spheres S1 and S2 of the same metal and having the same type of surface, have radii 20cm and 10cm respectively. Compare
1. 1 answer
2. asked by Edwin
3. 668 views
Draw the structure of [Z]-2-bromo-3-isopropyl-2-heptene
1. 0 answers
2. asked by Sarah Smith
3. 663 views
Can someone help me solve the following....using elimination methods1) 5x+7y=43 -4x+y=25 2)9x-9y=36 7y-3x=-14 I think the
1. 6 answers
2. asked by Holly
3. 657 views
A water pipe is made of iron with an outside diameter of 2.5 cm and inside diameter of 2.0 cm. The pipe is used to ground an
1. 1 answer
2. asked by Selma
3. 657 views
Assignment: Developing Good Business Sense – DUE DAY 7 in IF· Resource: Ch. 12 of Introduction to Business · Read the
1. 4 answers
2. asked by Anonymous
3. 652 views
A 80.00 kg object is hanging from two ropes. One rope (F1) is pulling due West. The second rope (F2) is pulling 80.00 degrees up
1. 1 answer
2. asked by Sarah
3. 651 views
Write an essay of about 300 words in which you describe in detail what constitutes a case study together with explaining what is
1. 2 answers
2. asked by Anonymous
3. 649 views
A massless spring of constant k = 88.9 N/m is fixed on the left side of a level track. A block of mass m = 0.50 kg is pressed
1. 6 answers
2. asked by Ana
3. 646 views
A stock’s 2009 Earnings-per-share is $4.50. Its Payout Ratio is 30%. Next year in 2010 it expects its Earnings-per-share to be
1. 1 answer
2. asked by Suzie
3. 636 views
2. The daily maximum temperature (T) on an island has approximately a normal distribution with a mean of 78 degree (F) and a
1. 1 answer
2. asked by sherry wilson
3. 635 views
Why is HF has lower boiling point than CsI, even though HF has hydrogen bond.Does HF have higher boiling point than O2
1. 1 answer
2. asked by eng
3. 631 views

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