1. waubonsee

    rita purchased a prepaid phone card for $30 . Long distance calls cost 14 cents a minute using this card. Rita used her card only once to make a long distance call. If the remaining credit on her card is $23.70 , how many minutes did her call last

    asked by Anonymous on February 7, 2017
  2. algrebra

    Christine purchased a prepaid phone card for . Long distance calls cost cents a minute using this card. Christine used her card only once to make a long distance call. If the remaining credit on her card is , how many minutes did her call last?

    asked by terri on May 12, 2014
  3. math

    Pilar made a scale drawing of a game room. The pool table is 2 inches long in the drawing. The actual pool table is 6 feet long. What is the scale factor of the drawing?

    asked by guillermo anaya on September 17, 2012
  4. Math

    2. A 21 meter tall tree near a building casts a shadow that is 24 meters long. The building casts a shadow that is 56 meters long. what is the height of the building? 21/24 = x/56 x = 56*21/24 = 49 m..........c -------------------------- a. 30m •• b.

    asked by Amanda on January 13, 2016
  5. Math

    a circular track runs around a park. there is a sidewalk that connects two points on the track that runs through the center of the park. the sidewalk is 100 ft. long. How long is the track to the nearest half foot?

    asked by Chris on March 8, 2010
  6. physics

    When a bullet leaves a barrel of a rifle, it is moving 640 m/s. If the barrel is 1.20 m long, and if the bullet undergoes constant acceleration while within the barrel, how long after the rifle is fired will the bullet emerge from the end of the barrel?

    asked by Chavez on January 31, 2014
  7. Algebra

    6. One angle measures 54 more than 3 times another angle. The angles are supplementary. What are their measures? 11. A piece of string is 112 inches long. Isabel wants to cut it into 2 pieces so that one piece is three times as along as the other. How long

    asked by James on April 9, 2015
  8. rates and unit rates

    Water fl owing from a faucet can fill 1/4 of a tank in 3 minutes. a) How long does it take to fi ll the tank completely with water? b) How long will it take to fi ll 6 similar tanks completely with water? Give your answer in hours and minutes.

    asked by vad on December 11, 2014
  9. geometry

    1. In 1994, the average monthly energy bill for your neighbors family of four was $175. In 2005 their average monthly bill rose to $250. A. Let x=number of years since 1994 and let y= average monthly bill. Write to ordered pairs that follow the info given

    asked by Shows Girl on October 3, 2008
  10. calculas

    The point P(7, −4) lies on the curve y = 4/(6 − x). (a) If Q is the point (x, 4/(6 − x)), use your calculator to find the slope mPQ of the secant line PQ (correct to six decimal places) for the following values of x. (i) 6.9 mPQ = (ii) 6.99 mPQ =

    asked by farad on January 15, 2017
  11. Math

    The point P(8, −3) lies on the curve y = 3/(7 − x). (a) If Q is the point x, 3/(7 − x)), use your calculator to find the slope mPQ of the secant line PQ (correct to six decimal places) for the following values of x. (i) 7.9 mPQ = (ii) 7.99 mPQ =

    asked by Nyk on October 7, 2011
  12. Math 4 questions PLZ help me ASAP

    1) Mr. customs is correcting the class's math homework on customary units. which of the following measurements is reasonable? A. a pencil is 12 feet long B. the back porch is 12 inches wide C. the 3rd hole on the golf court is 123 miles long D. the

    asked by Jenna Brenn on December 2, 2015
  13. Literature- Antigone dialogue

    This is my alternate ending to Antigone please feel free to comment on it, and give me a letter grade. I'm in 10th grade. Does it sound good so far I'll post the other half as soon as you comment Antigone: I deserve to die Polynecies meant everything to me

    asked by Theresa on September 6, 2009
  14. Mechanical Behavior of Materials

    Calculate the load that a fibroblast cell applies to buckle a single column in a collagen tissue engineering scaffold, given that the column has a length of 100μm, is circular in cross section, with a diameter of 2μm, and has a Young's modulus of 5MPa.

    asked by zxcv on November 8, 2014
  15. Statics

    In a chocolate chip cookie investigation, you decide to compare two cookie sources. Source 1: Mom mails to you a package containing a dozen of her homemade chocolate chip cookies. Source 2: You purchase a dozen of a store brand of chocolate chip cookies at

    asked by Heather on December 2, 2012
  16. Restate Thesis

    i realize this; i write them all the time. Last year i had to write an essay per week... that a lot of essays. =] Lady Macbeth and Ophelia are integral parts of these plays, yet they are polar opposites in characteristics and personality. I need a new way

    asked by Alexx on June 28, 2007
  17. English

    Posted by John on Thursday, September 4, 2008 at 7:36pm. Bingo Game 2 Hello, class. Let's play the bingo game. Look at the bingo board in Part C. Look at the bingoard. There are nine boxes on the board. There are three expressions in the three blanks.

    asked by John on September 4, 2008
  18. physics

    Part 1) The block in the figure is initially at rest on an inclined plane at the equilibrium position that it would have if there were no friction between the block and the plane. How much work is required to move the block 50 cm down the plane if the

    asked by Hunter on October 9, 2013
  19. 11 Physics

    my teacher gave me this question for review and i don't know how to do it!! HELP!!! A ball is thrown upwards, from a building. It's height(h), in meters above the ground seconds(t) after being thrown is given by h(t)=-5t^2+15t+50 a) How tall is the

    asked by Sam on September 3, 2014
  20. Math

    The record for the Boston Marathon's wheelchair division is one hour 18 minutes and 27 seconds A) The Boston Marathon is 26.2 miles long what was the average speed of the record winner of the wheelchair division round to the nearest hundredth B) at this

    asked by Paige on August 31, 2015
  21. algebra

    A rope is cut into three and one-third is used. Then one-fourth of the remaining rope is cut off and used. The piece left is 6 meters long. How many meters long was the rope originally?

    asked by Kara on May 29, 2017
  22. Maths

    Jack spends 1 3/5 as long on his homework as Jill. Last week, Jill spent 7 1/4 hours doing homework. How long did Jack spend doing homework?

    asked by Chloe on June 5, 2017
  23. Maths

    Jack spends 1 3/5 as long on his homework as Jill. Last week, Jill spent 7 1/4 hours doing homework. How long did Jack spend doing homework?

    asked by Chloe on June 4, 2017
  24. Physics

    A brass rod is two meter long at a certain temperature the brass rod is 2m long what is it length to a temperature raise of look if alpha of brass is 19*10-6 kelvin

    asked by Patience on May 30, 2016
  25. geometry

    the base of an isosceles triangle is 18 centimeters long. The altitude to the base is 12 centimeters long. What is the approximate measure of a base angle of the triangle?

    asked by SL on June 30, 2010
  26. English

    I forgot to include the following sentences for you to check. By the way, how do you call the sheet where the teachers register each student's school marks. This document is kept by the students themselves and families are expected to sign it once a month.

    asked by Mike on February 15, 2011
  27. NEED HELP! CHEMISTRY

    Three electrolytic cells containing solutions of CuNO3, Sn(NO3)2, and Fe(NO3)3, respectively, are connected in series. A current of 2.2 A is passed through the cells until 3.10 g of copper has been deposited in the cell. (a) What masses of tin and iron are

    asked by Mark on March 29, 2010
  28. science

    Which techniques would you use if you were trying to detect the presence of a protein? Which techniques would you use to detect gene expression? How would you determine whether a tissue or cell was producing a steroid hormone? How would you confirm that a

    asked by endo on April 22, 2012
  29. World Culture and the arts

    complete two sections, one section for the Islamic civilization and one section for the Early Chinese and Japanese civilizations. identify features of various art forms in different civilizations. use bullet points or full sentences to convey the main

    asked by Anonymous on July 31, 2008
  30. world culture and the arts

    complete two sections, one section for the Islamic civilization and one section for the Early Chinese and Japanese civilizations. identify features of various art forms in different civilizations. use bullet points or full sentences to convey the main

    asked by ashajackson on July 31, 2008
  31. Biology

    There are many differences between the two major cell types: prokaryotes and eukaryotes. However, the different structures and modes of organization perform basically the same functions. Briefly compare and contrast the different features or functions of

    asked by Jeromy on April 5, 2011
  32. Chemistry

    Calculate the change in mass of the In electrode after the cell supplies 100 mA of current for 10 minutes. The balanced redox reaction is 2In+Cl2=2In+ + 2Cl-. I understand the idea behind the question, I just don't know if I should use 1 mol In per 1 mol

    asked by anonymous on March 19, 2014
  33. Physics

    2 part question, only looking for part b. a) A driver wearing a seat beat decelerates at roughly the same rate as the car it self. Since many modern cars have a "crumble zone" built into the front of the car, let us assume that the car decelerates of a

    asked by Brandon on February 20, 2011
  34. physics

    Assume the truck is going at v0 = 25 m/s, and you're 20 m behind the truck. You decide to accelerate at a = 1.0 m/s2 to pass the truck. To pass safely, you also want to pass the truck by 20 m before moving back to the lane. Part A ) Estimate the time

    asked by Sarah on January 13, 2016
  35. MATH

    A contractor purchases gravel one cubic yard at a time. (a) A gravel driveway L yards long and 6 yards wide is to be poured to a depth of 1 foot. Find a formula for n(L), the number of cubic yards of gravel the contractor buys, assuming that he buys 12

    asked by ally on March 13, 2016
  36. math

    A projectile is fired directly upward with a muzzle velocity of 860 feet per second from a height of 7 feet above the ground. a. Determine a function for the height of the projectile t seconds after it’s released. b. How long does it take the projectile

    asked by bill on March 7, 2010
  37. math

    mary put new tiles on her kitchen floor. the floor measures 6 feet long by 5 feet wide. she used 10 tiles to cover the entire floor. each tile was 3 feet long. write an equation using the variable x to model this situation. what does x represent in the

    asked by Anonymous on September 30, 2014
  38. physics

    Can somebody shows me how to get to the answer key? The answer for a) is 1.5, b) rP is 1.34AU and rA is 2.01AU and c) is .335AU Copy and past this link part by part as it is to see the figure: part1: webassign. part2: net part3: /katzpse1/7-p-009.gif

    asked by joy on February 20, 2018
  39. Chemistry

    Pt | Fe2+ (6.4010-5 M), Fe3+ (0.0460 M) || Sn4+ (2.7010-4 M),Sn2+ (0.0750 M) | Pt i need to calculate the voltage of the cell. I know to use E=emf- (RT/nF)lnQ .... I think my problem is with setting up Q. I'm confused on what goes on top and what goes on

    asked by Val on March 29, 2010
  40. Calculus HELP!!!

    Here is the graph. h t t p : / /goo.gl/PTc2I (spaces added at the beginning so it could be added as a website) 1. Let g be the function given by g(x)=integrate from -4 to x f(t)dt. For each of g(-1), g'(-1), and g''(-1), find the value of state that it

    asked by Celia on March 29, 2013
  41. Physics B

    part 1 A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the coordinate system as follows: a 1.5 kg object at the origin, a 3.4 kg object at (0 m,1.8 m), and a 4.5 kg object at (4.2 m,0 m). THANK

    asked by Mary on November 4, 2012
  42. Physics

    When the space shuttle (mass of the shuttle = 2 x10^6 kg) was at the outer limit of Earth's atmosphere (distance = 350 km above Earth's surface), astronauts measured the gravitational force from Earth to be equal to 1.7 x 10^7 newtons. Assuming that both

    asked by Leila on May 20, 2012
  43. shortest fence

    this is my last question from applications of derivatives! A 216m^2 rectangular pea patch is to be enclosed by a fence and divided into two equal parts by another fence parallel to one of the sides. What dimensions for the outer rectangle will require the

    asked by Jen on November 18, 2006
  44. Algebra 2 Honors

    Hey, we recently started a topic in class that I don't understand well, I just want to post 6 of the problems and ask if they're right or not (some of them I have no idea how to do). 1. If a varies directly as b and b = 18 when a = 27, find a when b = 10.

    asked by Ryan on May 13, 2015
  45. Math 1 please help

    A clothing store has the sign shown in the shop window. Pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. The cost of each shirt before the discount is $12 and the cost of each pair of jeans is $19 before the discount. Question 1. Pani

    asked by Steph on January 8, 2015
  46. Science

    Which of the following correctly identifies active transport? A. Transport proteins move large molecules from areas of low. B. Transport proteins move large molecules from areas of low concentration areas of high concentration areas without the use of

    asked by Ive on November 8, 2016
  47. French

    Could you check these thanks Part 1 Directions: Vrai or Faux? 1. --------- Les passagers récupèrent leurs bagages avant d'embarquer. Answer: vrai 2. -------- Les passagers récupèrent leurs bagages après avoir débarqué. Answer: faux 3. -------- On

    asked by Lisa on February 17, 2010
  48. History

    4.)During the 1820s and 1830s, many people settled in texas an california. the territories were part of mexico . some thought the united state should annex those territories. the territories were soon independent of mexico they became part of the united

    asked by #FreeGucci on February 24, 2016
  49. Physics

    1. In outer space, where there is no gravity or air, an astronaut pushes with an equal force of 20 N on a 3 N moon rock and on a 9 N moon rock. Which statement is the most accurate about this situation? A. Since both rocks are weightless, they will have

    asked by Amber on October 5, 2018
  50. Physics

    partscoretotalsubmissions1--10/12--10/13--10/14--10/1----4--The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of

    asked by Panda on May 7, 2007
  51. LA

    Which of the following phrases can be added to the paragraph to make it more descriptive? You cannot even fathom the stress that a daughter in the O'Reilly family deals with. It's bad enough that my parents had eight children, but to be the youngest? And

    asked by IG@pvotelly on May 26, 2017
  52. Science

    Why has it taken astronomers so long to discover the planet QUAOAR? Space is huge. The object is dim. Under high magnification, even a small amount of space takes a very long time to scan. Plus the object is moving so it's in a different place. That's one

    asked by Please help me! on June 4, 2007
  53. biology

    Hydrogen bond v covalent how are they sim and diff Both involve chemical bonds where bonds are formed from electrostatic forces covalent bonds involve the sharing of electrons between atoms. Outer valence shells are filled by the sharing of atoms. This

    asked by Jim_R on September 29, 2009
  54. math

    suppose that one bacterial cell divides every 30 minutes to make 2 cells. write an expression to find how many cells there will be after 3 hours. then solve to find the total number of cells after 3 hours.

    asked by jayson on August 31, 2012
  55. PHY

    Vector V1 is 9.00 units long and points along the negative x axis. Vector V2 is 4.72 units long and points at +50.0° to the +x axis. (a) What are the x and y components of each vector? V1x = V1y = V2x = V2y = (b) Determine the sum V1 + V2. Magnitude AND

    asked by ami on August 22, 2010
  56. math

    Van Gogh's painting Starry Night measures 92 cm long by 73 cm high. You buy a poster that shows an enlargement of the painting. The poster measures 120 cm long by 100 cm high. Is the poster an accurate represenation of the painting? I think the answer is

    asked by keisha on November 24, 2007
  57. physics

    Vector V1 is 6.29 units long and points along the negative x axis. Vector V2 is 4.23 units long and points at +35.0° to the +x axis. (a) What are the x and y components of each vector? V1x = V1y = V2x = V2y = (b) Determine the sum V1 + V2. Magnitude

    asked by michael on September 30, 2012
  58. Chemistry

    Can someone show and explain to me step by step how to do the problems? I feel like I am doing it incorrectly. a) The solubility of PbI2 is 3.67 mg per mL. What is the Ksp? b) Three drops of 0.20 M potassium iodide are added to 100.0 mL of 0.010 M lead

    asked by Miki on March 25, 2014
  59. economics

    An increase in an economy's resource pool will: 1)shift the short-run aggregate supply curve inward. 2)cause a movement along the long-run aggregate supply curve. 3)will shift both the long-run and short-run aggregate supply curves outward. 4)will shift

    asked by Këya on July 21, 2012
  60. Chemistry

    calculate cell potential at 25C for: 3Fe3+(aq) + AL(s)= 3Fe2+(aq)+ Al3+ (aq) if Fe3+ = 0.300 M, Fe2+ = 0.150M Al3+ = 0.300M. The standard reduction potentials are as follows: Fe3+ (aq) + e- = Fe2+ (aq) Al3+ (aq) + 3e-=Al (s) Eo = +0.771 V Eo = -1.66 V

    asked by Helen on October 18, 2010
  61. Chemistry

    2Al(s) + 6H+(aq) → 2Al3+(aq) + 3H2(g) For the above Al-H2 cell, what is the voltage if [Al3+] = 6.0461 M, [H+] = 6.1 M, and the hydrogen pressure is 0.0557 atm. Eo = 1.66 V. .00004-(.05916/6)*log(7.1e-4) =.03 WRONG ANSWER I GOT

    asked by Anonymous on April 13, 2013
  62. Algebra

    A cell phone company charges each customer a base rate of $15.00 per month for its services. The company also charges each customer $0.02 per minute used Which algebraic expression represents each customer's monthly charge for m minutes?

    asked by Mohmed on February 22, 2016
  63. Quantum Physics

    Has anyone done Block 7-8 for TMA 6 for s103 - discovering Science, as i am struggling big time, any help would be much appreciated yes i am like you really phased by this how much of the tma have you managed to do Me, too what r u stuck on? I have been

    asked by Adam on February 27, 2007
  64. English

    choose the letter S if the word group is a sentence or the letter F if the word group is a clause fragment. A:As soon as I heard about them.F B:Because I never seen a moose up close. F C:That the oryx has long,pointed horns that point up. S D:Whoever drew

    asked by Anonymous on December 28, 2017
  65. English

    I left out three sentences, I hope you can see them. 1) Can you use his/her when writing a dissertion? Exmple: The character stays fixed in a place whereas his/her consciousness moves freely in time. 2) There was no use in (is "in" necessary?) thinking of

    asked by Henry1 on May 25, 2011
  66. physics

    i need help figuring out what formaula to use for finding the final velocity of a rocket. Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26

    asked by sonia on October 7, 2008
  67. GED-Word Problems

    Jody's new jeans are 30 inches long. They need to be shortened 1 1/2 inches. How long will they be after are shortened?

    asked by kayla on April 25, 2012
  68. Math

    A triangle has one side that is 4 inches long and another side that is 4.5 inches long. The angle that is between them is 80°.

    asked by shaunta on September 18, 2012
  69. math

    How may pieces of 1/6 yard-long of wire can be cut from an 8-yard long wire?

    asked by cristine on December 10, 2014
  70. Physics

    Pendulum A is 20 cm long and has a 5 g mass on it. Pendulum B is 30 cm long and has a 10 g mass on it. Which one has a faster period?

    asked by Amber on March 1, 2012
  71. math

    "a 6 ft adult has a shadow of 3.6 ft. long. How long is the shadow of a 5-ft child standing next to the adult"

    asked by lb on November 10, 2010
  72. Math

    a 6 ft adult has a shadow 3.6 ft long. How long is the shadow of a 5 ft child standing next to the adult?

    asked by Michael on February 14, 2011
  73. math

    How many 2 1/4 feet long strips of ribbon can be cut from a ribbon that is 7 1/2 feet long

    asked by Rebecca on September 4, 2015
  74. Physics

    A tennis ball isdropped from 1.52m abovethe ground. It rebounds to a height of 0.918 m. With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s2 . (Let down be negative.) Answer in units of m/s. (part 2 of 3) With what velocity

    asked by Lynelle on September 3, 2018
  75. renewable energy

    If a solar cell with 2 m^2 surface area is placed in a direct light having 780 W/m power density provides an output power of 346 W, what is the efficiency in percent? (0 to 100 %, no decimals). Provide your answer in base units (no scientific notation or

    asked by christian on January 29, 2011
  76. Ap Chem,

    1) What kind of chemistry makes it possible for DNA of materials being tested to lodge at only one kind of probe molecule? 2) What is normally the connection between damage to a cell and the p53 protein? 3) From the perspectives of the society as a whole,

    asked by Starr on February 27, 2008
  77. density of Magnesium!

    Magnesium crstallizes in the hcp arrangment. The dimensions of the unit cell are height 520om, length on an edge, 320. Calculate the density of Mg (s) and compare it with the measured value of 1.738 g/cm^3 this is what i did : m= 2* 24.30g/6.022*10^23 =

    asked by sandy on February 6, 2009
  78. English

    Questionnaire a. Interest in English class b. Interest according to each skill c. The most difficult part among 4 skills d. Interest in the most important part among 4 skills e. Studying English after school f. Understanding in the classroom g. Study

    asked by John on June 3, 2008
  79. English

    I will check your reading activity with a gun on the screen of this laptop. (A gun is a selecting program on the computer.) When a number shows up on the screen, the student should come up here and read one part aloud. This reading text is divided into 4

    asked by rfvv on October 9, 2017
  80. physics--drwls

    A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.77 m/s^2 for 15 s 2. Constant velocity for the next 2.05 min 3. Constant negative acceleration -9.47 m/s^2 for 4.39 s. (a) What was the total

    asked by Star on September 7, 2007
  81. science Help

    A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

    asked by Gwen on September 23, 2014
  82. science Help

    A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

    asked by Gwen on September 23, 2014
  83. Science Help

    A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

    asked by Gwen on September 23, 2014
  84. science

    Suppose a bar 1 m long expands .5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated? If each one meter expands a half centimeter, then one hundred meters will expand 100*.5cm. Think on that.

    asked by malliene on November 22, 2016
  85. English

    Can you please clarify to me the rule regarding adjective order? I have long, black, curly hair OR I have long, curly, black hair ??? You can refuse to be tested orally only once. (or You can decide to excuse for not being tested orally only once) I don't

    asked by Henry2 on September 11, 2011
  86. Math

    Can you please help me do it and understand it? The area of a rectangular piece of land is 280 square meters. If the length of the land was 5 meters less and the width was 1 meter more, the shape of the land would be a square. Part A: Write an equation to

    asked by Anonymous on January 6, 2016
  87. algebra

    Question: 89 of 111 Leave Questionnaire You need to hire a part-time associate to work 30 hours a week in your store. You have $250 in labor budget for the new associate each week. You just interviewed an excellent candidate for the position who has

    asked by craig on June 4, 2014
  88. physics

    A lamp hangs vertically from a cord in a descending elevator that declerates at 2.4m/s^2 a) if the tension in the cord is 89N what is the lamp's mass? b) what is the cord's tension when the elevator is ascends with an upward acceleration of 2.4m/s^2? I

    asked by Chris on November 13, 2006
  89. Mathematical measurement

    Find the ratio of the longest side to the perimeter of the​ right-triangular-shaped billboard. A scalene triangular billboard that says "Ski Whitetop" is designed to look like a snow-peaked mountain with a road leading up to the peak. The peak of the

    asked by Ralph Willis on January 12, 2017
  90. physics

    Suppose that the resistance between the walls of a biological cell is 3.00 x 10^9 Ω. (a) What is the current when the potential difference between the walls is 70 mV? ____________ A (b) If the current is composed of Na+ ions (q = +e), how many such ions

    asked by ali-1 on January 25, 2011
  91. Physiology

    Why is it important to clear a neurotransmitter quickly from the synaptic cleft? What might happen to the target muscle cell if the neurotransmitter were NOT cleared? What might happen if neurotransmitter reuptake occured too quickly?

    asked by Ivy on March 29, 2011
  92. trigonometry (repost) Mathmate

    Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" Using the previous values, a=21.46 b=46.28 C=32-28-30=32.475 We have A+B=180-32.475=147.525 a+b=67.74 a-b=-24.82 tan((A+B)/2)=3.433633

    asked by Anon on February 27, 2011
  93. physics

    A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 95 kg. A person pushes on the outer edge of one pane with a force of F = 80 N that is directed perpendicular to the pane. Determine the magnitude

    asked by Jayjay on March 29, 2007
  94. ..

    if you already had the chiken pox you can be arournd a person with the disease without no fear of becoming sick. what feature of the immune system explains this? a. acquired immunity b. cell- mediated immunity c. humoral immunity d. primary immune system

    asked by mary on March 12, 2013
  95. Biology

    Describe two scientific theory (atomic,kinetic,cell theory) and non scientic (moral, ethical, religious theories ).Differentiate between the scientific and non scientific theories explaining why there are some questions that science cnnot answer.

    asked by Leila on October 1, 2008
  96. Chemistry

    A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using a 2.5-A current. At which electrode should the buckle be

    asked by Anonymous on March 19, 2008
  97. BIO

    Organisms that live in environments and are hypotonic have cell membranes that differ in permeability from those that live in isotonic environments. What water regulation adaptations might have evolved to allow these organisms to survive in different

    asked by mark on December 19, 2011
  98. Chemistry

    1. A student wishes to set up an electrolytic cell to plate copper onto a belt buckle. Predict the length of time it will take to plate out 2.5g of copper from a copper (II) nitrate solution using 2.5A current. At which electrode should the buckle be

    asked by Alex on March 13, 2008
  99. chemistry

    1)At room temperature (20 degree C), milk turns sour in about 64 hours. In a refrigerator at 3 degree C, milk can be stored three times as long before it sours. How long should it take milk to sour at 40 degree C (activation energy =44kj/mol)? 2)At what

    asked by sue on February 3, 2009
  100. Biology, please help

    Gametes produced in the process of meiosis in humans (chromosome 4)has a long and short arm the short arm has the gene for Huntington's (H) attached and the long arm the gene for Red hair (R) state the differences in the product cells at telophase II if a

    asked by Gemma on April 10, 2007