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2010
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Questions Asked on February 4, 2010

Name three characteristics of mitochondria and chloroplasts that support the endosymbiotic hypothesis of eukaryotic evolution?
1. 2 answers
2. asked by brooke
3. 3,403 views
Four identical charges (+2.0ìC each)are brought in from infinity and fixed to a straight line. The charges are located 0.40
1. 2 answers
2. asked by Eddy
3. 3,390 views
how do i simplify the equation: v^2=Vo^2+2ax to solve for a? a=acceleration
1. 2 answers
2. asked by ashley
3. 3,213 views
What is the prime factorization of a number?
1. 5 answers
2. asked by Scott
3. 2,848 views
Four hundred people apply for three jobs. 130 of the applicants are women.(a) If three persons are selected at random, what is
1. 1 answer
2. asked by Marla
3. 2,603 views
After a baseball is hit, the height h (in feet) of the ball above the ground t seconds after it is hit can be approximated by
1. 3 answers
2. asked by Drake R.
3. 2,488 views
determine the value of the three primary trigonometric ratiosi have triangle in front of me but what am i looking for? what is
1. 1 answer
2. asked by just wondering part 2
3. 2,444 views
Solve the inequality:2x-1 / 3x-2 < 1 [the < is actually less than or equal to] I got one of the answers, x is less than or equal
1. 2 answers
2. asked by Trixie
3. 2,411 views
A potter forms a piece of clay into a cylinder. As he rolls it, the length,L, of the cylinder increases and the radius, r,
1. 2 answers
2. asked by mandy
3. 2,288 views
Explain why chemists might want to prepare substituted hydrocarbons. Give two examples of possible substitutions.
1. 3 answers
2. asked by Savannah
3. 2,035 views
A 0.0600 kg tennis ball, moving with a speed of 2.50 m/s, has a head-on collision with a 0.0900 kg ball initially moving away
1. 3 answers
2. asked by Ashley
3. 2,007 views
A population of wolves in a county is represetned by the equation p(t)=80(0.98)^t. where t is the number of yers since 1998.
1. 2 answers
2. asked by harpreet
3. 1,978 views
Two capacitors are identical, exceptthat one is filled with a dielectric (� = 4.50). The empty capacitor is connected to a 12.0
1. 2 answers
2. asked by ann
3. 1,874 views
a jetliner, traveling northward,is landing with a speed of 69m/s.once the plane touches down, it has a 750m runway in which
1. 3 answers
2. asked by Darrie
3. 1,807 views
One solution of12x^3-23x^2-3x+2=0 is 2. Find all other solutions. I tried rearranging the equation to factor by grouping, but
1. 1 answer
2. asked by Momo
3. 1,786 views
Explain how the half-life of a radioactive isotope affects the usefulness of that isotpe in dating specific types of rock?
1. 1 answer
2. asked by brooke
3. 1,780 views
Why is knowing your audience an important part of capturing and maintaining their attention? What is the impact of culture?my
1. 1 answer
2. asked by Bryan
3. 1,778 views
A pencil, eraser, and notebook cost $1 in total. A notebook costs more than 2 pencils, 3 pencils cost more than 4 erasers, and 3
1. 2 answers
2. asked by jason
3. 1,716 views
Vincent has cut three pieces of rope to complete a science project. Two pieces are of equal length. The third piece is
1. 3 answers
2. asked by Camile
3. 1,691 views
the velocity of a train is 80.0km/h, due west. 1hr an 30min later, its velocity is 65.0km/h, due west. Whats the train average
1. 2 answers
2. asked by Darrie
3. 1,597 views
Explain how early RNA molecules might have been able to respond to natural selection?
1. 2 answers
2. asked by brooke
3. 1,570 views
How do I solve this problem:A particular wire has a current of 10A. A) How many electrons pass a fixed point every 5 seconds?
1. 2 answers
2. asked by Kate
3. 1,562 views
The inner and outersurface of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a
1. 3 answers
2. asked by Diane
3. 1,559 views
By means of what single reagent could you distinguish between the following? (Tell what happens to each substance.)Solutions:
1. 1 answer
2. asked by Becky
3. 1,462 views
Juana and Diego Gonzales, ages six and four respectively, own a strong and stubborn puppy named Corporal. It is so hard to take
1. 2 answers
2. asked by Marie
3. 1,414 views
Four 50-\mu {\rm{C}} charges are brought from far apart onto a line where they're spaced at 2.0-{\rm cm} intervals. How much
1. 1 answer
2. asked by Johnny
3. 1,411 views
The base of a triangle is 5cm greater than the height. The area is 18cm^2. Find the height and the base.The height is triangle
1. 4 answers
2. asked by Tina
3. 1,375 views
1) If a 10. m3 volume of air (acting as an ideal gas) is at a pressure of 760 mm and a temperature of 27 degrees Celsius is
1. 1 answer
2. asked by Hannah
3. 1,340 views
what is the consumer surplus, producer surplus and deadweight loss if a monopolist has demand p=100-Q and Cost= 10QThanks xox
1. 1 answer
2. asked by chloe
3. 1,286 views
14. The major components of a DNA molecular subunit area. a chromosome, deoxyribose, and double helix b. a five-carbon sugar,
1. 2 answers
2. asked by mysterychicken
3. 1,276 views
Why do some scientist think that areas protected from the atmosphere might have favored the production of organic compounds on
1. 2 answers
2. asked by brooke
3. 1,236 views
Ginger earns $18,500 annually and has 22% of her gross earningswithheld. What is the net amount of her paycheck each pay period
1. 1 answer
2. asked by GAbriel
3. 1,206 views
Why was the discovery of microspheres and coacervates an important contribution to the understanding of how life might have
1. 2 answers
2. asked by brooke
3. 1,165 views
Certain neutron stars (extremely dense stars) are believed to be rotating at about 100 rev/s. If such a star has a radius of 10
1. 1 answer
2. asked by margaret
3. 1,144 views
what did the witty raindrop exclaim to all the others
1. 6 answers
2. asked by Maggie
3. 1,136 views
Nadia bought 200 shares of stock at 34 1/2. She had to pay a 1%commission to her broker. What was the total price of the stock?
1. 3 answers
2. asked by ange
3. 1,133 views
in "Salvation" by langston I am suppose to tell whether the point of is from a view of someone "going on thirteen" or from the
1. 2 answers
2. asked by Candace
3. 1,127 views
I am doing a crossword puzzle: THe cause of the Panic of 1837 was ? or too many people buying too much land with too little
1. 0 answers
2. asked by Mitchell
3. 1,114 views
I have a few question so I will number them off. Please answer them for me I have a test tommorow and I am sure this can help
1. 1 answer
2. asked by John
3. 1,092 views
How might the efficiency of glycolysis change if this process occurred in only one step?
1. 1 answer
2. asked by Walter Leyva
3. 1,091 views
I have to write a paper comparing two art sculptures.I have write if it's an open or closed contour but I don't know what that
1. 1 answer
2. asked by JJ
3. 1,089 views
Please help me Sketch a separation scheme showing how you would separate the following two component mixture: m-nitroaniline and
1. 1 answer
2. asked by Elizabeth
3. 1,088 views
the length of a rectangle is 2 centimetres less than twice the width. the area of the rectangle is 180 square centimetres. find
1. 1 answer
2. asked by jke
3. 1,087 views
The scale of two similar quadrilaterals is 1:3. The perimeter of the smaller quadrilateral is 90 centimeters. What is the
1. 3 answers
2. asked by Ashely
3. 1,066 views
A radioactive sample of 141Cs has a half-life of 32.5 days. In a sample that contains 8.00*10^7 nuclei of 141Cs, how many beta
1. 0 answers
2. asked by David
3. 1,057 views
The centers of a 8 kg lead ball and a 100 g lead ball are separated by 13 cm. What gravitational force does each exert on the
1. 3 answers
2. asked by margaret
3. 1,049 views
1) An ideal gas occupies a volume of 0.60 m^3 at 5atm and 400K. What volume does it occupy at 4.0atm and a temp of 200K?I know
1. 1 answer
2. asked by Hannah
3. 1,030 views
The perimeter of a triangle is 26 c,. Side a of the triangle is 3 cm longer than side b. Side c is 1 cm shorter than twice side
1. 2 answers
2. asked by sara
3. 1,003 views
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 3.50 s.
1. 1 answer
2. asked by Britney
3. 996 views
what are three natural resources in Iowa?
1. 1 answer
2. asked by amanda
3. 991 views
What is a vertical section of the ocean from it's surface to the ocean floor called?
1. 1 answer
2. asked by Sandy
3. 951 views
How do I set up a comparsion table for two stories
1. 0 answers
2. asked by TOM
3. 951 views
In triangle ABC, sinA=0.6, a=10 and b=7. Find sinB
1. 1 answer
2. asked by Pema
3. 948 views
What is active listening?
1. 2 answers
2. asked by amel
3. 928 views
help me unscramble iritoncf
1. 2 answers
2. asked by c
3. 922 views
In a single-slit diffraction pattern on a flat screen, the central bright fringe in 1.0 cm wide when the slit width is 4.70 10-5
1. 0 answers
2. asked by linds
3. 919 views
I need to know if this paragraph has any grammatical errors in it.Often, however, the dictionaries are wrong about this; in
1. 1 answer
2. asked by kitty
3. 918 views
how do I solve and state if it is an overestimate or an underestimate?1.2% of 490 Do I .012 x 490 or Do I round 1.2% to 1
1. 1 answer
2. asked by Kyle
3. 909 views
A canoe has a velocity of 0.490 southeast relative to the earth. The canoe is on a river that is flowing at 0.520 east relative
1. 2 answers
2. asked by Anonymous
3. 884 views
java,write a program that prints out the letter X composed of asterisks (*) reply soon
1. 1 answer
2. asked by patrick
3. 883 views
need help rearanging this formulaT= 2pie sqrt(m/k solve for k is this right k= T^2/m 4pie^2
1. 1 answer
2. asked by jake
3. 867 views
Hello, I am having problem with two lab questions and was wondering if someone can help!1. Calculate the percentage of the empty
1. 1 answer
2. asked by Dina
3. 854 views
How did social studies began in britain. i.e the history of social studies in britain
1. 0 answers
2. asked by Festus moses
3. 846 views
A(n) ________-based ethics code defines corporate values; creates a supportive environment, and, stresses shared accountability
1. 0 answers
2. asked by Anonymous
3. 818 views
A current exists in a wire that gradually narrows down to a smaller diameter. How do the drift velocity, the current density,
1. 1 answer
2. asked by Sally
3. 816 views
A cube of side length L = 10 cm is centered atthe origin of an x,y,z (cartesian) coordinate system. The electric potential V (x,
1. 2 answers
2. asked by Eddy
3. 812 views
When an air capacitor with a capacitance of 300 nF (1 {\rm nF} = 10^{-9}\;{\rm F}) is connected to a power supply, the energy
1. 1 answer
2. asked by Erin
3. 808 views
You are now 30 years old. You plan to retire in 30 years, and expect to live for 30 years after retirement, that is, until you
1. 0 answers
2. asked by Anonymous
3. 808 views
I tried doing this problem, but I still don't understand it at all...Pilot Reem Ahmad's flight plan has her leaving Dulles
1. 1 answer
2. asked by Marie
3. 803 views
Which of the following italicized words is correctly capitalized?I think it is D. is that correct? Thanks or your help.. A.
1. 6 answers
2. asked by Jess
3. 802 views
Final Project: Final Project• Resources: Appendix A • Due Date: Day 7 [post in the Individual forum] • Write a 700-1,050
1. 0 answers
2. asked by Amber
3. 800 views
Reasoning Four people each bought 2 bottles of Vermont maple syrup Each person plans to share their bottles with 3 friends How
1. 1 answer
2. asked by Taylor
3. 795 views
Astronauts on the Moon look back at Earth, a distance of about 400,000 km away. If the cities of Washington, D.C. and New York
1. 0 answers
2. asked by laura
3. 793 views
Having troube with java, i am not a regular programmer, if anybody can help me out writting this program:write a program that
1. 0 answers
2. asked by John
3. 787 views
Can you tell me if these sculptures have open or closed contour?I can't post the link but if you search the name and the numbers
1. 2 answers
2. asked by JJ
3. 785 views
Directions: Find the missing measure of each angleHow do I do this? It's a triangle, angle one 2x + 15 x 45degrees
1. 1 answer
2. asked by Dean
3. 785 views
Health care is evolving and facing increasing challenges related to reimbursement, staff shortages, patient safety, increasing
1. 2 answers
2. asked by annoymous
3. 774 views
List the set of all even numbers between 2 and 10, inclusive.
1. 2 answers
2. asked by miranda
3. 767 views
i need to know if i need to add any puctuation?Descriptive paragraph Deborah PaulA loyal Friend My loyal friend Mary Ellen is 48
1. 5 answers
2. asked by deborah
3. 763 views
Hi, could someone possibly check my answers to these algebra questions? Its not my strong point so have been struggling a little
1. 3 answers
2. asked by Geoff
3. 762 views
what is the explicit formula of the sequence 3,1,-1,-3,-5
1. 1 answer
2. asked by lashawn
3. 751 views
Ms. Sue or whomever,What is the purpose of asking a question for help and then get smart comments like we'd be glad to comment.
1. 3 answers
2. asked by annoymous
3. 742 views
Jim paid $3.99 for a 14-ounce bag of cookies. What was theunit cost per pound?
1. 2 answers
2. asked by AT
3. 739 views
a trianglar course for a sailing race is marked off by buoys. The first lef is 250 meters longer than the second and the third
1. 1 answer
2. asked by jack
3. 724 views
Thank you again for your last corrections!Can you help me check these sentences please? 1) I had planned to do a lot of things
1. 0 answers
2. asked by Franco
3. 712 views
Two small planes start from the same point and fly in the same direction. The first plane is flying 35 mph slower than the
1. 1 answer
2. asked by Mathew
3. 708 views
The ratio of oranges and bananas is 3:6. There are 54 pieces of fruit altogether, how many of them are oranges?Do I set it up
1. 4 answers
2. asked by Jenny
3. 704 views
Explain why every substance has a characteristic density, but no substance has a characteristic mass.
1. 1 answer
2. asked by Bo
3. 704 views
I am working on a project called VB Auto Sales I am working in CH 2. I have just about completed the assignment but I am unable
1. 2 answers
2. asked by David
3. 703 views
1)The element nickel has ccp packing with a face-centered cubic unit cell. The density of nickel is 8900 kg/m3 and the cell
1. 2 answers
2. asked by blasting
3. 699 views
You are an ENT and have just responded to a 9-1-1 call. Begin a discussion with another ENT about what has occurred at the scene
1. 2 answers
2. asked by kasey
3. 695 views
The Indo-european parent language was first spoken by a pre-historic people in:A} Western europe B} Middle east C} Northern
1. 0 answers
2. asked by laura
3. 694 views
I am working on a project called VB Auto Sales I am working in CH 2. I have just about completed the assignment but I am unable
1. 0 answers
2. asked by David
3. 686 views
A train moving at a constant speed of 68.0 km/h moves east for 36.0 min, then in a direction 48.0° east of due north for 30.0
1. 1 answer
2. asked by Josh Burnz
3. 673 views
Pilot Reem Ahmad's flight plan has her leaving Dulles International Airport and flying a Boeing 727 due east at 450 mph. There
1. 2 answers
2. asked by Marie
3. 671 views
Explain how The Federalist Papers would have been more or less successful if newspapers had been printed monthly (rather than
1. 0 answers
2. asked by miranda
3. 669 views
1. This year he has learned Chinese.(Does this sentence mean that he is learning Chinese now? Or does this sentence mean that he
1. 1 answer
2. asked by rfvv
3. 666 views
write the fact family for 2,11,and 9______________? ______________? _______________? ________________? I don,t understand of
1. 1 answer
2. asked by pat
3. 666 views
Help! I have an assignment and I lost my textbook. Does anyone have "Managerial Economics for a Global Economy" by D. Salvatore
1. 0 answers
2. asked by Jez
3. 662 views
17. When errors in nucleotide sequencing occur,a. DNA polymerase replaces the incorrect nucleotide with the correct nucleotide
1. 1 answer
2. asked by mysterychicken
3. 661 views

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