Questions Asked on
May 10, 2011

  1. math

    how many multiples of 7 are there between 100 and 1000?

    asked by april
  2. trig

    Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

    asked by andy
  3. Math

    Two fire towers are 30 kilometers apart, tower A being due west of tower B. A fire is spotted from the towers, and the bearings from A and B are E 14 degrees N and W 34 degrees N, respectively. Find the distance d of the fire from the line segment AB.

    asked by Mike
  4. math

    There are 4 black marbles and 2 white marbles in a bag. What is the probability of choosing a black marble,not replacing it, then choosing a white marble.

    asked by Kimmay
  5. chem

    radiated food can be safely stored for a longer time because radiation 1. prevents air oxidation 2. prevents air reduction 3. kills bacteria 4. causes bacteria to mutate is it 3 ?

    asked by Jazmin
  6. is a wall a conductor?

    is a wall a conductor?

    asked by ashley --- HELP PLEASEE!!!
  7. Physics

    What will be the final temperature if 1.9 x 10^2 kJ of heat is added to 0.5 kg of ice at 0 deg. C?

    asked by Emily
  8. CALCULUS

    FOR EACH PAIR OF LINES, DETERMINE SIZE OF ACUTE ANGLE, TO THE NEAREST DEGREE, THAT IS CREATED BY INTERSECTION OF LINES.:--Y = 0.5X+6 AND Y=-0.75X-1

    asked by Anonymous
  9. Psychology

    Although her parents insisted that she could not go to the movie with her girlfriends on a school night, Barb continued to try to persuade them to change their minds. "What if I promise to do my homework when I get home? I could do my homework in study

    asked by Nicci
  10. probability

    if a fair coin is tossed 4 times, what is the probability of getting heads the first 3 times, and tails the fourth itme?

    asked by kristy
  11. Maths

    Cos70cos10+sin70sin10 e =2cos^2 2x-1

    asked by Solly
  12. Math

    An observer 2.5 miles from the launch pad of a space shuttle measures the angle of elevation to the base of the shuttle to be 25 degrees soon after lift off. How high is the shuttle at that instant? (Assume that the shuttle is still moving vertically)

    asked by Jimmy
  13. Chemistry

    What is the ratio of carbon atoms to hydrogen atoms in the compound 2CH2 = C2H4? A. 1 to 9 B. 9 to 1 C. 3 to 6 F. 6 to 3

    asked by Peter
  14. Chemistry

    Which of the following acid-base indicators should be used for the titration of NH3 with HBr? Kb of ammonia is 1.8 ×10−5. 1. Methyl red, color change red/yellow at 4.4 < pH < 6.2 correct 2. Any of these is suitable. 3. None of these is suitable. 4.

    asked by Douglas
  15. Literature

    What are some literary devices used in the novel Journey to the Center of the Earth?

    asked by Marie
  16. English

    8. Name three specific "poet stereotypes" that Margaret Atwood discusses or hints at in her speech. 9. What were Margaret Atwood's very first poetry experiences? 10. What are your earliest memories of poetry? Were they similar to Margaret Atwood's first

    asked by Whitney
  17. lit

    What did the philosopher Aristotle mean when he said, "To perceive is to suffer"? Did I punctuate correctly?

    asked by joel
  18. Biology

    The number of oyster beds in Chesapeake Bay,which is an arm of the Atlantic Ocean,is dwindling rapidly.what effect would this have on the surrounding area?On the human community?

    asked by maggie
  19. lit

    Jocelyn asked her mom, "What was it like when you were a child?" Did I punctuate correctly?

    asked by joel
  20. lit

    "One day I'm going to be an astronaut," Adelle told her sister. Did I punctuate correctly?

    asked by joel
  21. Chem

    Calculate the standard cell voltage, Eo, for the following reactions. Include the sign of the voltage in your answers. (a) Fe2+(aq) + Pb(s) --> Pb2+(aq) + Fe(s)

    asked by Rachel
  22. algebra

    Word problems confuse me. THe owner of a fancy food shoppe wants to mix cashews selling at $8/kg and pecans selling at $7/kg. How many kg of each kind of nuts should be mixted to get 8 kg worth $7.25/kg?

    asked by Matt
  23. science

    is a wall a conductor or insulator ?

    asked by ashley --- HELP PLEASEE!!!
  24. Chemistry

    C5H11Oh represent... A. Amino Acid B. Organic Acid C. Alcohol D. Ester

    asked by Peter
  25. algebra

    Find the slope of each of the three line segments in the graph below. Please show all of your work. Between which two points is the slope the smallest?

    asked by jasmen
  26. Chemistry

    Consider the following reaction: PCl3 + 3H2O -----> P(OH) + 3HCl if 4.00L of PCl3 react with an excess of H2O at STP, how many grams of HCl would be formed?

    asked by Danna
  27. lit

    n 1946, Albert Einstein said if he had known the Germans wouldn't succeed in constructing the atom bomb, he "would never have lifted a finger." Did I punctuate correctly?

    asked by joel
  28. Lit class

    Did I punctuate this correctly? "Daddy, why is the sky blue?" Martinique asked her father. the quotation mark goes behind the question mark right?

    asked by joel
  29. Grammar

    Insert Punctuation as required. 1. After a Maylard incision was made through the abdomen a retractor was used for visualization of the pelvic contents. Answer: comma after abdomen.

    asked by Leslie
  30. Grammar

    Proofread sentence and insert punctuation as required. The work up revealed the surface was of no real concern at this time. Answer: No punctuation required - fine as is.

    asked by Leslie
  31. math

    In a group of 28, 16 are boys 12 are girls. what fractional part of the group are boys?

    asked by nancy
  32. Grammar

    Proofread sentence and insert punctuation as required. This is an irate boisterous 46-year old lady who complains that she was hit in the face with the heel of a womans' shoe. Answer: comma after irate woman's ? not sure - I don't even think it needs any

    asked by Leslie
  33. annandale

    If a lab group were using hydrochloric acid to perform a substitution reaction, which precaution would not be a concern?

    asked by exgee
  34. lit

    My mom says "Never wear anything but a suit to a funeral or a wedding." is this correct punctuation?

    asked by joel
  35. lit

    Antony invited us over to check out his, "awesome new board." is this correct

    asked by joel
  36. lit

    When Marcos walked into the room, we turned on the lights and yelled, "Happy birthday!" is this correct punctuation?

    asked by joel
  37. Grammar

    1. Choose the sentence that has correct subject-verb agreement. A. Three passengers on this flight is afraid of flying. B. The flight attendants on the plane is friendly and reassuring. C. The food on most flights is both appealing and tasty. D. The most

    asked by anthony
  38. earth

    What is the weight of a 30 kilogram chair on Earth?

    asked by dfaz
  39. Thermo engineering

    The driveshaft of a building’s air-handling fan is turned at 300 RPM by a belt running on a 0.3-m-diameter pulley. The net force applied by the belt on the pulley is 2000 N. determine the torque applied by the belt on the pulley, in N.m, and the power

    asked by Justin
  40. math

    10 degrees of circle in fraction

    asked by ivan
  41. chemistry

    the density of a piece of wood is 0.638 g/cm3. The dimensions of the block of wood are 40.0 cm by 50.0 cm by 25.0 cm. What is the mass of the block of wood? Show all calculations.

    asked by sue
  42. Chemistry

    Show that the pH of a solution is -0.301 when its hydronium-ion concentration equals 2 M. Is the solution acidic or basic?

    asked by Rachael
  43. Trig

    Find Theta in the degree measure for the indicated quadrant. Show the diagram. cot (Theta)= -(Radical 3/1)in quadrant IV. I got 240 degrees but i don't know how to do the diagram since 240 degrees is in quadrant III. How do you put this in a diagram?

    asked by Lisa
  44. lit

    "Maybe we should wait to begin until everyone is seated," Ana said to her band mates. did I punctuate this correctly?

    asked by joel
  45. Math

    Tristan runs 5 kilometers in 45 minutes. His goal is to run the same distance in 40 mins by next year. How many kilometres per hour does he need to run next year to reach his goal?

    asked by Colton
  46. Math

    If M=(1*2*3*4*......*1000) + 1, is M prime? I said no because 24001 can only be divided by 1 and itself, but I got a point off. Why is this?

    asked by Joe
  47. Physics

    A round body of mass M, radius R, and moment of inertia I= BMR^2 is rolling without slipping. Its kinetic energy can be decomposed into the energy of its center of mass motion (translation) and the enrgy of rotation about its center of mass. The fractions

    asked by Jason
  48. chem

    Now the numbers in the question are correct, (Fluorine = 10.10atm Krypton = 1.24atm). Please help. Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel container

    asked by alex
  49. #2 chemistry

    2CO(g) + O2(g) ==> 2CO2(g) A. If 16.01 L of oxygen is reacted at STP, how many moles of carbon dioxide is produced? B. If 1.722 mol of carbon monoxide is reacted at STP, what volume of carbon dioxide is produced? C. At STP, what volume of oxygen is needed

    asked by Danni
  50. biology

    Are different species always fery different?

    asked by stella
  51. MATH

    some pennies were on the table.erin saw that 56 were heads up and 44 were tails up.what fraction of the pennies were hrads up? A.56/100 B.44/100 C.56/44 D.44/56

    asked by LIDIA
  52. english

    how do I correctly punctuate ? "Who wants dessert?," Latisha asked us as she walked into the room with a beautiful steaming apple pie. or is it correct?

    asked by greg
  53. Chemistry

    Explain why carbohydrates, lipids, and proteins are important parts of a well-balanced diet.

    asked by Peter
  54. Grammar

    Proofread the sentence and Insert punctuation as required. She reports the flare up is worse when she does not have her diabetes under control. Answer: I feel it doesn't need anything added to it. FINE as is! I hope! Thanks

    asked by Leslie
  55. Physics

    A child of mass 40 kg stands beside a circular platform of mass 115 kg and radius 1.6 m spinning at 3.8 rad/s. Treat the platform as a disk. The child steps on the rim. a) What is the new angular speed; b) She then walks to the center and stay there. What

    asked by Unknown
  56. Grammar

    Proofread and insert the proper punctuation. The x-rays revealed: an articular fracture of the tibia, a butterfly fracture of the fibula, and a longitudinal fracture of the femur. Answer: The x-rays revealed an articular fracture of the tibia, a butterfly

    asked by Leslie
  57. lit

    The defendant stated that she was, "not guilty." is this correct punctuation?

    asked by joel
  58. chem

    he literature value for the melting point of aspirin is 135°C. Suppose that a sample of aspirin prepared in Experiment 41 melts over the temperature range 125–128°C. What does this result suggest about the purity of this sample of aspirin?

    asked by maribel
  59. Physics

    a chain pulls tangentially on a 33.4kg uniform cylindrical gear with tension of 70.1 N. the chain is attached along outside radius at 0.794m from the axis of rotation. starting from rest gear takes 1.59 s to reach rotational speed of 1.08 rev/s. what is

    asked by Jenna
  60. lit

    Ms. Sardelis said we must "absolutely and without delay" turn in our permission slips by tomorrow or we can't go on the class trip. is this correct

    asked by joel
  61. English

    Is conformity as much a problem in the twenty first century as it was in the nineteenth century....

    asked by kayla
  62. chem

    ethane gas, or dicarbon hexahydride, undergoes cmbustion to produce carbon dioxide gas and water vapor. A. What mass of the un named reactant is required to react with 2.2 moles of ethane? B. How amny molecules of the product with the smaller % composition

    asked by alex
  63. spanish/check please

    1-Yo tengo (tantas/ tantos) praticas como mi hermano answer: tantos 2- Juan toma ( tantas/ tantos) lecciones de artes marciales como Carlos. answer:tantos 3- Elena tiene( tantas/ tantos) pasatiemptos como Angelica. answer:tantas 4_ Camilo

    asked by mike
  64. Algebra

    40. The graph of the following system yields perpendicular lines. x + 2y = -10 -4y = 2x + 20 (True) 48. The graph of the following system yields parallel lines. x - 2y = 1 y = -3x + 10 (False) Thanks -MC

    asked by mysterychicken
  65. Grammar

    Proofread the following sentence. Insert punctuation as needed. He complains of pain in his left shoulder, (Mainly upon raising his arm). Answer: He complains of pain in his left shoulder (Mainly upon raising his arem). * the sentence inside the

    asked by Leslie
  66. math

    it costs $.20a min for ashley to call her best friend in mexico she calls her after school every day she called her friend @ 3:30 yesterday the cost was $8.60 what time did she end her call explain

    asked by ali
  67. Chemistry

    a radioisotope is called a tracer when it is used to 1 kill bacteria 2 kill cancerous cells determine the age of animal skeletal remains 4 determine the path of an element in an organism is it 3 ?

    asked by Jazmin
  68. Chemistry Lab

    If 12.50 mL of 0.324 M HCl is diluted to 250.00 mL, what is the concentration of HCl in the final solution?

    asked by Thao
  69. Chemistry (Gas Laws) I REALLY NEED HELP

    A 27.8 liter container is initially evacuated, and then 8.8 grams of water is placed in it. After a time, all the water evaporates, and the temperature is 130.8 degrees C. Find the final pressure.

    asked by Christina
  70. The Settlers

    Describe the conflict between the settlers and the Nor’Westers and the Métis. Include reasons for the conflict, details of the battle at seven oaks and the result. The conflict between the settlers and the Métis is caused because of shortage of food.

    asked by Emma
  71. Chemistry Lab

    You need 123 mL of 0.245 M NaOH solution for a certain experiment, and the only solution available in the lab is 1.252 M. How many mL OF THE 1.252 M NaOH would you need?

    asked by Thao
  72. Chemistry

    Show that the hydroxide-ion concentration in an aqueous solution is 1x10-4 M when the hydronium-ion concentration is 1x10-10 M.

    asked by Cami
  73. statistics

    In 1995, the cost of unleaded gasoline was $.95 per gallon. In 2010 the same type of gasoline costs $3.00 per gallon. To determine the amount of change, we have to use the what?

    asked by Valene
  74. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by Janey
  75. Physics

    Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If

    asked by Ashley
  76. Physics

    A satellite of mass m is in Keplerian orbit around a parent body of mass M >>m. The satellite has total energy E and angular momentum l, where angular momentum is measured about the parent body and the zero of potential energy is at infinity. Detnermine

    asked by Carole
  77. Physics

    What is the resistance of a 4.00 m length of copper wire having a diameter of 2.00 mm at a temperature of 20 degrees?

    asked by Anonymous
  78. Physics

    A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

    asked by Ashley
  79. lit

    "Ouch, that hurts!," Kadra said after stubbing her toe. is this correct?

    asked by joel
  80. Math

    What is the equivalent fraction of 0.125

    asked by Jessie
  81. Chemistry

    Use the standard reduction potentials in volts: Cu^2+ --> Cu+ +0.16; I2--> I- +0.54. calculate the value of E (in volts) for a cell in which the overall reaction is= 2Cu+ + I2--> 2Cu^2+ + 2I-

    asked by Kynlee
  82. math

    The Elmwood Middle School enrollment went from 750 students to 810 in one year, what percent increase did this represent?

    asked by suzi
  83. Physics

    A satellite of mass m is in Keplerian orbit around a parent body of mass M >>m. The satellite has total energy E and angular momentum l, where angular momentum is measured about the parent body and the zero of potential energy is at infinity. Detnermine

    asked by Carole
  84. Math

    What is the decimal equivalent to 1/9?

    asked by Jessie
  85. Physics

    Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If

    asked by Ashley
  86. Physics

    A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

    asked by Ashley
  87. maths

    Catenary; y= a/2(e^bx +e^-bx) goes through the origin (0,0) and has point (-9,18) & (9,18) solve for a and b.

    asked by giules
  88. Math

    Order of operstions

    asked by Lilly
  89. Grammar

    Choose the sentence that is written and punctuated correctly. 1. She reported she was in the women's dressing room when she suffered what felt like a terrible chest cramp. 2. While she was in the womens' dressing room, she suffered what felt like a

    asked by Leslie
  90. Goemetry

    The two acute angles in a right triangle measure (2x + 7)° and (3x - 2)°. Find x and the measure of the two acute angles.

    asked by casper
  91. Math

    In 1991,the life expectancy of meals in a certain country was 69.8 years. In 1996, it was 72.7 years. Let E represent the life expectancy in year t represent years. E(t)= ____+ _____ Use the function to predict the life expecancy of maels in 2008 E(17)=

    asked by Leina'ala
  92. science

    how long does it take for the Earth to rotate on its axis 7 times 1day 1 week 1month or 1 year?

    asked by sam
  93. English Com

    Hi, I just want to make sure I am doing this correctly before I turn in the assignment. There should be 5 sentences using verb tenses. Thanks in advance Education "plays" a major role in successful financial planning. (Present tense) In my previous class,

    asked by Venel
  94. Math/algebra

    Simplify this expression.. x^2-5x/5x-25

    asked by Sara
  95. Math

    Liz found that 3/25 of the seeds she planted did NOT grow.What is the decimal that shows the portion of seeds that did NOT grow?

    asked by Jessie
  96. Math/Algebra

    Simplify this expression... x^2-9/x^3-3x^2

    asked by Sara
  97. trig

    Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the exact value of tan(theta) and cos(theta).

    asked by andy
  98. Physics

    PLEASE SHOW ALL WORK A 15.0-kg cart is moving with a velocity of 7.10 m/s down a level hallway. A constant force of -5.0 N acts on the cart and its velocity becomes 3.00 m/s. (a) What is the change in kinetic energy of the cart? (b) How much work was done

    asked by johnny
  99. Statistics Psychology

    I do not understand how to find the critical values of the test statistics. I also need help understanding how to find the standard error as well. Thank you!

    asked by Kailey
  100. Physics

    A long-range jet liner flies (almost exactly) level at constant speed, subject to the forces of drag fD=(1/2)CDrhoSv^2, thrust Ft, and weight Mg. Given the plane's wing area, lift and drag coefficients, speed and takeoff mass, calculate the engine power

    asked by Ferdinand
  101. Math

    An observer 2.5 miles from the launch pad of a space shuttle measures the angle of elevation to the base of the shuttle to be 25 degrees soon after lift off. How high is the shuttle at that instant? (Assume that the shuttle is still moving vertically)

    asked by Jimmy
  102. math

    What is the formula for finding these?? 1. 30 % of 90 2. 70 is 10 % of what? 3. 4/10 of 30 4. change 2/8 to a percent Please help me with these formulas! Thanks!

    asked by lucy
  103. Grammar

    Choose the sentence that is written and punctuated correctly. 1. She reported that her boss's secretary called 9-1-1 when she fainted, she has no recollection of the ambulance arriving. 2. She reported that her boss's secretary called 9-1-1 when she

    asked by Leslie
  104. Chemistry (on gas laws)

    What is the mass of 3.91 L of fluorine gas at STP?

    asked by Susan
  105. Grammar

    Choose the sentence that is written and punctuated correctly. 1. We ordered: an MRI, a CT scan, chest x-rays, and an upper GI. 2. An MRI, a CT scan, chest x-rays, and an upper GI were ordered. Answer: #1. I don't like it but I believe that the second

    asked by Leslie
  106. algebra 1

    A ladder leans against a building, forming an angle of 53° with the ground. The base of the ladder is 3 ft from the building. To the nearest hundredth of a foot, how long is the ladder?

    asked by Samantha
  107. physics

    Light falls on a photoelectric surface that has a work function of 2.90 eV. If the voltage required to stop the ejected electrons is 0.210 V, what is the wavelength of the incident radiation?

    asked by samuel
  108. grammar

    In his first inaugural address, President Franklin D. Roosevelt said, "The only thing we have to fear is fear itself." is this correct punctuation?

    asked by renee
  109. math

    the length of a rectangular field is 18 m longer than the width. the field is enclosed with fencing and divided into two parts with a fence parallel to the shoter sides. if 216 m of fencing are required to the shoter sides. if 216 m of fencing are

    asked by fernanda
  110. Chemistry

    Calculate the theoretical pH after 2.50ml and 9.50ml of NaOH has been added in both the titration of HCl and of HC2H3O2.

    asked by anna
  111. math

    How many 3 digit numbers are divisible by 8?

    asked by april
  112. Chemistry

    Material X is an organic compound that mixes poorly with water and is highly flammable. Of the following choices, material X is most likely a(n): A. Carbohydrate B. Ester C. Alcohol D. Hydrocarbon

    asked by Peter
  113. Chemistry

    The smaller molecules that make up complex carbohydrates are called A. sugars B. amino acids C. fatty acids D. nucleotides

    asked by John
  114. Pre Algebra

    I am doing an ice cream cone project for math on cones and had to figure out the surface area for them, but there is a question that is "how to the surface and lateral area of each relate?" my teacher said you will see a pattern but i dont. i.e. sa=

    asked by Carrie
  115. math

    Peg spends $7.50 a week for grapefruit. When grapefruit are out of season, she gets 1 fewer grapefruit than when they are in season. If the price decreases by $3 per dozen in season, how many dollars will it cost to buy a dozen grapefruit out of season?

    asked by april
  116. Calculus

    integral 5e^t-(sin(t))dt I figured this out as the answer 5e^t+cos(t). My question is if I need to put a +C at the end of the equation. Thanks for your time.

    asked by Mike
  117. chemistry NEED HELP please

    N2(g) + 3H2(g) ==> 2NH3(g) A. If 16.99 g of hydrogen is reacted at STP, volume of ammonia is produced? B. If 35.82 L of nitrogen is reacted at STP, what mass of hydrogen must also be reacted? C. At STP, what volume of hydrogen is needed to produce 70.9 L

    asked by Danni
  118. math8

    it costs $20 to replace an air filter on a $20,000 car, ehat percent of the cars value is the price of the air filter?

    asked by whesley
  119. honors geometry

    A belt wrapped tightly around cicle O forms a 60 degree angle at P, a point outside the circle. Find the length of the belt if cicle O has a radius of 9.

    asked by kourtney
  120. Chemistry

    How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion? Calculate the molarity of the solution. ______g ______M i honestly don't know where to start, but i know that M=mol/L will be involved

    asked by Sam
  121. Math

    What decimal is equivalent to 56 3/4 ?

    asked by Jessie
  122. math

    Jess makes 5/8 free throws how many will she make if she takes 720 tries

    asked by Kat
  123. Math

    If the garden is 1 foot wide and 29 feet long, what are the perimeter and area of the garden?

    asked by Lavette
  124. Chemistry

    What is an unsaturated hydrocarbon?

    asked by Peter
  125. College Algebra

    SOLVE: (3x-5)^3 that's to the third power

    asked by Nancy
  126. MATH

    How do you factor (x^2)+x+7?

    asked by John
  127. geometry

    find the volume of a shape whose surface ares is 144 pi square inches

    asked by frank
  128. english

    how do I punctuate this sentence ? What did the philosopher Aristotle mean when he said "To perceive is to suffer"? or is this correct?

    asked by lauren
  129. The Settlers

    Describe the conflict between the settlers and the Nor’Westers and the Métis. Include reasons for the conflict, details of the battle at seven oaks and the result. The conflict between the settlers and the Métis is caused because of shortage of food.

    asked by Emma
  130. math class

    A measurment of 46 million centimeters is equivalent to what simple expression using kilometers?

    asked by cary
  131. math012

    f(x)=x^2+7x and g(x)=x-4. FInd (f/g)(x) and (f/g)(-1)

    asked by kelsie
  132. Math

    (19 − 8) mod 5 is the problem. I know nothing about modules, can anyone please help me out? I don't even know the building blocks for mods and what the differences are between them.

    asked by Anonymous
  133. chem 100

    What is the pH of a solution prepared by dissolving 7.5 g HCl in water to make 415 mL of solution?

    asked by yesi
  134. Physics

    A satellite of mass m is in Keplerian orbit around a parent body of mass M >>m. The satellite has total energy E and angular momentum l, where angular momentum is measured about the parent body and the zero of potential energy is at infinity. Detnermine

    asked by Ferdinand
  135. Grammar

    Proofread the following sentences. insert punctuation as required. After the exam the patients demeanor was improved. Answer: After the exam, the patient's demeanor was improved. * added comma after exam and ? added an ' patients.

    asked by Leslie
  136. chemistry

    2nd revision to the question, it is 7.62atm not 7.2atm, its now all correct on the question. sorry again Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel

    asked by alex
  137. Grammar

    Proofread the following sentence and insert punctuation as required. The patient reported the following effects from the fall: Discomfort breathing, pain in the right shoulder, dizziness upon standing, and headaches during the day. Answer: ; after fall

    asked by Leslie
  138. chemistry

    how much energy is released when a 5600 gram sample of water cools from 99 degress celsius to 28 degrees celcius

    asked by m
  139. Math

    If theres a golden rectangle, with one dimension shown as being 100, then what is the length of the unknown side? How do you do this please?

    asked by Frank
  140. Distinction between Metis...

    I have to create a distinction between the Metis and the settlers and the NWC and HBC. Could you tell me what I could make each group wear? Like the Metis could have feathers in their hair.... (This is for the images I will be drawing in the comic strips.

    asked by Emma
  141. chem 100

    What is the [H3O^+] in a solution that contains 1.44 g HNO3 in 0.520 L of solution?

    asked by yesi
  142. Calculus

    True or false. 1. If F'(x) = G'(x) on the interval [a,b] then F(b)-!@#$%^&(b)-G(a). I think it's true but I just want to check my reasoning. F'(x) = G'(x) means that F(x) and G(x) differ by a constant (which may be 0). When the subtraction is done to find

    asked by Mike
  143. URGENT - history

    Heya The Cartoon on Getty Images, Cosy Communist circa 1940. I'm trying to find where it was originally published and who originally drew it so that I can put that in my research journal. We are graded on our research journal and it documents like all our

    asked by Ella
  144. Lit class

    I'm going to be asking for the help for all of us does this have correct punctuation? two of us said no and the other two says yes My mom says "Never wear anything but a suit to a funeral or a wedding."

    asked by joel
  145. College Mathmatics

    Multiply; then reduce to lowest terms: 5 1/2 . 3/4

    asked by Ash
  146. Physics

    golf club with a mass of 250 g travels at 50 meters per second hits a 40 g golf ball and continues traveling at 35 m/s. What is the speed of the golf ball after impact?

    asked by Spencer
  147. chem lab

    Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point. i don't know where to start.

    asked by Anonymous
  148. Life orientation

    How does health affect the community and enviroment

    asked by Anonymous
  149. math

    four and three fourths + two and one eighth

    asked by kendrea
  150. c++

    write a program that reads ten numbers, computes their average and find out how many numbers are above average.

    asked by nethiyaa
  151. English

    Can you please chec this question, please? Thank you. 1. Write briefly what Italian teenagers like wearing at the moment. Then refers to what sort of clothing you like wearing

    asked by Henry1
  152. c++

    write a program that reads ten numbers, computes their average and find out how many numbers are above average.

    asked by nethiyaa
  153. Chemistry

    2 Ag+(aq) + Fe(s) --> 2 Ag(s) + Fe2+(aq) Which electrode is the anode, and which is the cathode. and In which directions do the cations and anions migrate through the solution? cations thanks

    asked by Rachel
  154. statistics

    In a population of normally distributed aptitude scores of 1000 academy students with mean 70 and Standard deviation 10, how many score above 95?

    asked by Lisa
  155. Grammar

    1. Her husband, a kind, quiet gentleman, worked for HHS's public relations department. 2. Her husband, a kind quiet gentleman, worked for HHSs public relations department. Question: choose the sentence that is written and punctuated correctly. 50 - 50 I

    asked by Leslie
  156. Grammar

    The patient's first visit, to the office, was for lower back pain. True False Answer: False no need for comma after visit.

    asked by Leslie
  157. Grammar

    Proofread the following sentence. Insert punctuation as required. She had some nausea and vomiting, also she had profound diarrhea. Answer: She had some nausea and vomiting; also she had profound diarrhea. NB If I could change the sentence I would write it

    asked by Leslie
  158. psy Stats.

    how do you Calculate percentage when given standard deviation and mean

    asked by Kailey
  159. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by Kynlee
  160. Grammar

    Choose sentence that is written correctly. - 50-50 1. She is uncertain whether or not she has had fevers: because she does not have an instrument for measuring body temperature. 2. Because she does not have an instrument for measuring body temperature, she

    asked by Leslie
  161. College Mathmatics

    Fill in the blank with the correct symbol to make the resulting inequality true. 4 4/3____ 4 1/2 A-> B-< C-< (with a line under it) D-> (with a line under it)

    asked by Ash
  162. English

    1. Our next stop was Buyongdae, a cliff overlooking Hahoe Village. 2. Our next stop was Buyongdae, a cliff which overlooked Hahoe Village. 3.Our next stop was Buyongdae, a cliff which overlooks Hahoe Village. 4. Our next stop was Buyongdae, a cliff which

    asked by rfvv
  163. lit class

    we are really stuck on this one we searched the website that you suggested but are still stuck this is what we came up with is this correct punctuation? Jawaharlal Nehru, the first prime minister of independent India, said that, "culture is the widening of

    asked by joel
  164. Trig

    Cos(2theta)=-1/2 There are 6 solutions, how do i solve this?

    asked by Thanh
  165. Speechwriting

    Hey How would I go about doing a PPT, assuming that I'm delivering a speech at a conference on Waltzing Matilda. My teacher said it must not detract from the presentation.

    asked by Gina
  166. English

    I was most impressed with the trees growing out of the water in the middle of the pond. (Q1: What is the function of 'most' in this sentence? Can we use 'the' before 'most'? 2. Can we substitute 'from' for 'out of'? Q3: Is ' impressed' a past participle?)

    asked by rfvv
  167. geometry

    Find the area: A rectangle with length 12 inscribed in a circle with radius 7.5 (explain how you do it please! Thanks!)

    asked by Matt
  168. geometry

    Find the area of: A square with radius 9. (Please explain how you found it! Thanks!)

    asked by Matt
  169. math10

    question: factor (using the GCF) 18D^3+45D^6 answer:would it be 9D^2(2+5D^4)?

    asked by lilian
  170. math

    Julie bought 3/4 yard of fabric. She used 1/3 of it. How much fabric does she have left?

    asked by David
  171. my question was answered wrong

    In how many different ways can you arrange three 4x8 tiles to form a rectangle?

    asked by Lee
  172. languag

    how i can write paragrave

    asked by karim123
  173. Math

    How many terms are in the expansion of (a+b+c)^3 after like terms have been combined? 1. I don't know what this question is asking 2 and I don't know how to start it

    asked by Diana
  174. english

    i need help with this it says write any naming word or noun over that is not correct then it gives me things like three peach a cookies four camp im confused on what to do and how to do it

    asked by miste
  175. ela

    wut do i like to eat?

    asked by elizabeth
  176. keyboarding and word processing

    When creating a 20-page newsletter in which you want different margin settings and other page formats within the multipage document, which one of the following Word features should you use?

    asked by john
  177. geometry

    Triangle ABC is a 45°-45°-90° triangle inscribed in a sphere such that B is the center of the sphere, and A and C are points on the sphere. Given the hypotenuse of ABC is 32 units, what is the surface area of the sphere?

    asked by Anonymous
  178. chemistry

    I have a question in chemistry relating to identifying a compound that would precipitate the iron ions out of a water supply. I am unsure of a compound that would react to produce the iron as a precipitate that could be removed. Thoughts?

    asked by Danny
  179. health

    Identify one way in which the role of the FDA and the product or service it regulates or oversees ( which i chose animal cloning) affects consumer choice in the health care marketplace.

    asked by freda
  180. Grammar

    Proofread the sentence and insert punctuation as required. There was also an admission for uterine contraction's and some brown red discharge and questionable bleeding. Answer: There was also an admission for uterine contractions, and some brown red

    asked by Leslie
  181. trig

    CosA x cos2A + ((sin2A)^2)/2cosA

    asked by Makhosini Maluvana
  182. math

    Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to

    asked by Jo
  183. writeacher in need of help

    Writeacher I did all my homework but I need help with some things. Could you please look at my posts?

    asked by Emma
  184. Algebra 1

    Hi whoever is willing to help... I have to do a web-quest... Gain The Summit Introduction Mt. Everest is the tallest peak on earth. It is located in a mountain range called the Himalayas. Climbers can access this daunting peak through Nepal or Tibetan

    asked by surfsupmel
  185. math problems

    what is a number that is between 200- 700 three digit multiple of 10 and divisible by 8 and 9

    asked by mohammed
  186. chemistry

    if i dissolve 176 grams of ionic compound (particles=3) in 750 got H2O and freezing point to -8.3 degrees Celsius what is the molar mass

    asked by chelsea
  187. Algebra

    The number of dogs taken in daily at a local animal shelter increased from 4 in October, 2009 to 10 in January, 2010. Predict the number of dogs taken in daily in May, 2010.

    asked by Kimberly
  188. English

    What is an infinitive?

    asked by addowlin21
  189. math

    inverse function of y=-2e^x Help please, Thanks!

    asked by hii
  190. probability

    if digits can't be repeated, how many 4-digit numbers can be arranged using the digits 1, 3, 5, 7, and 9?

    asked by kristy
  191. Algebra

    If Marcy received a 7% raise and is now making $67,500 per year, what was her salary before the raise? Round your answer to the nearest dollar.

    asked by Kimberly
  192. MATH

    How do you go about finding equations to a given solution set?

    asked by Fiona
  193. Physics

    A bucket of water with a mass of 4.17 kg is attached to a rope that is wound around cylinder. the cylinder has a mass of 7.19 kg is mounted horizontally on frictional bearings. the bucket is released what is its speed after falling distance of .645 m

    asked by Anono
  194. math

    Triangle UVWis a right triangle. If UV=51 centimetersand VW=140 centimeters. find UW. I subtracted 51 from 140 and got an answer of 191. then i subtracted 191 from 360 to get an answer of 179. is this right?

    asked by Sydney
  195. Math

    The section of an invoice that designates payment of freight chargesis the

    asked by Akwaa Harrison
  196. geometry

    A point P is picked at random on line AE. What is the probability that P is on line BE?

    asked by Anonymous
  197. Math

    TRIATHLONS Irena is training for an upcoming triathlon and plans to run 12 miles today. Jorge offered to ride his bicycle to help her maintain her pace. If Irena wants to keep a steady pace of 6.5 minutes per mile, how fast should Jorge ride in miles per

    asked by Gabi
  198. Geometry

    What is the area of a rhombus with a 60 degree angle and sides 5 cm long?

    asked by Destiny
  199. math

    Architects has designed a cylindrical building with a 150-foot diameter. ... How far from the building should the parking lot extend? ...

    asked by max
  200. English

    I need someone to diagram where the following parts of speech go; gerund, verb, infinitive, subject, prepositionalphrase, direct object, object compliment, participial phrase, and indirect object

    asked by addowlin21
  201. child care

    True or False: Open-ended questions require few decision-making skills

    asked by kayla
  202. English 12

    I need a 12th grade level complex sentence using a metaphor

    asked by addowlin21
  203. MATH

    How would you go about finding x and y?? [x-8 2 2y] [9x-16 2 6] [ 2 -7x 7] = [ 2 -7 7] [-4 y-4 2] [-4 -1 2]

    asked by carl
  204. chemistry

    A 10 kg block of ice has a temperature of -13°C. The pressure is one atmosphere. The block absorbs 4.11 106 J of heat. What is the final temperature of the liquid water?

    asked by Anonymous
  205. English 12

    I need a 12th grade level complex/compound sentence using a gerund.

    asked by addowlin21
  206. English 12

    I need a 12 grade level complex/compound sentence using an infinitive and two prepositional phrases.

    asked by addowlin21
  207. Calculus

    Find the area of the region bounded by the line y=3x and y= x^3 + 2x^2? and find the area of the region bounded by the curve y=e^2x -3e^x + 2 and the x-axis?

    asked by Akansha
  208. chem

    an empty container has a mass of 658.57g. It has a mass of 659.45g after it has been filled with nitrogen gas at a pressure of 790 torr and a temperature of 15 deg C. When the container is evacuated and refilled with a certain element at a pressure of 745

    asked by alex
  209. English 12

    I need someone to diagram where the following parts of speech go; gerund, verb, infinitive, subject, prepositionalphrase, direct object, object compliment, participial phrase, and indirect object. If you need my email, ask!

    asked by addowlin21
  210. Calculus help PLEASE

    It is known that an object traveling in straight line with velocity function v(t) = t^2-t, where v is measured in meters per second. Find following. The position function s(t) when we know the position 5 meters after 2 seconds. I tried to work this out and

    asked by James
  211. English

    I just need some help with this statement, the topic is how Mama is a help to her family rather than a hindrance in "Raisin in the Sun" Mama perpetually helps characters such as Walter and Ruth throughout the play, whether by bettering their morals or

    asked by Meh
  212. chem

    A scientist wants to make a solution of potassium phosphate, K3PO4 for a lab experiment. How many grams of K3PO4 will be needed to produce 575ml of a solution that has a concentration of K+ ions of 1.4M.

    asked by alex
  213. psychology

    help me please.... 1- What is the importance of the power of the individual? 2- Explain the importance of peacemaking. 3-What is the affect of aggression on society?

    asked by mo
  214. math

    what is the graph points of (1, -3),m=-5/4 in slope-intercept form

    asked by cheryl
  215. To Jiskha Tutors and Others

    Need to do a comic strip of things that happened at the Red River Colony/ Battle of the Seven Oaks. CRITERIA -Main ideas r contained in organized sequence. -pictures and dialouges tell story -uses speech, expression, and thought bubbles neatly printed.

    asked by Emma
  216. English 1301

    I need to write a short paragraph or two n the most memorable/influentail person in us history from 1492-1865

    asked by crystal criss
  217. chem

    for my last two questions, i had Krypton as the element and 56.96 grams K3PO4. i need something to compare with

    asked by alex
  218. UOP

    I do not want answers! The question is: Evaluate the effectiveness of self-determination theory in explaining various behaviors. My question is: Exactly what is this asking for and how would I start the response? Is it asking for the behaviors themselves

    asked by Marie
  219. Physics

    A round body of mass M, radius R, and moment of inertia I= BMR^2 is rolling without slipping. Its kinetic energy can be decomposed into the energy of its center of mass motion (translation) and the enrgy of rotation about its center of mass. The fractions

    asked by Jason
  220. Calculus

    For the function f(x) = x/(3x+1) find the equation of the line which is tangent to the curve f(x) at x=2. Solve analytically (an exact answer is required) Please show steps. Thanks.

    asked by James
  221. Calculus

    For a class project, I have been asked to find the volume of the area bounded by two functions, with cross sections of equilateral triangles. The two functions in question are y = xsinx y = -xsinx , And I need to find the volume that would result if the

    asked by Sara
  222. Accounting

    Glanville Distribution markets CDs of the performing artist Harrilyn Clooney. At the beginning of March, Glanville had in beginning inventory 1,500 Clooney CDs with a unit cost of $7. During March Glanville made the following purchases of Clooney CDs.

    asked by Joan A
  223. math

    Please help! :) Garden measures 30x20 Border has a width of x (I've already solved the first part of my problem, in that the width is 3) Border needs to be covered to a depth of 3 inches. Pine bark costs $29 per cubic yard. What will the material cost to

    asked by Jo
  224. maths

    The mean weight of the contents of samples of 30 bags of sugar has standard error 0.008kg. Choose the option that is closest to the probability, to three decimal places, that the mean weight of the contents of samples of 30 bags of sugar will be 1kg or

    asked by albert
  225. chemistry

    If an aqueous solution of sulfuric acid (H2SO4) is neutralized by 3.20 mol of sodium hydroxide (NaOH), how many moles of acid were originally present in the solution?

    asked by Anonymous
  226. Physics

    Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If

    asked by Ashley
  227. Physics

    A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

    asked by Ashley
  228. Trig

    How would you write the partial fraction decomposition of the rational expresion 1/(x^2)-25? I know that you factor the denominator, so that's 1/(x-5)(x+5). What are the next steps?

    asked by JD
  229. Physics

    A long-range jet liner flies (almost exactly) level at constant speed, subject to the forces of drag fD=(1/2)CDrhoSv^2, thrust Ft, and weight Mg. Given the plane's wing area, lift and drag coefficients, speed and takeoff mass, calculate the engine power

    asked by Ferdinand
  230. criminal justice

    Terrorism plots against the United States have caused the government to create the Department of Homeland Security with the hope of leveraging federal, state, and local police agencies; intelligence agencies; and immigration agencies to cooperate in

    asked by brian
  231. grammar

    I am both a quick worker, and I am careful." what is the correct parallel structure.

    asked by nichole
  232. trig

    How would you go about finding x and y?? [x-8 2 2y] [9x-16 2 6] [ 2 -7x 7] = [ 2 -7 7] [-4 y-4 2] [-4 -1 2]

    asked by carl
  233. English 10

    I'm reading Huckleberry Finn for my 10th English class and I have a question. Twain, in The Adventures of Huckleberry Finn, takes a satirical look at a.society b.religion c. education d. all of the above I think it might all of them but then I think it

    asked by Sarah
  234. Chemistry

    Im having trouble on a question Im not sure what it is they are asking for. A voltaic cell similar to that shown in Figure 20.5 is constructed. One electrode compartment consists of a silver strip placed in a solution of AgNO3, and the other has a iron

    asked by Hannah
  235. Physics

    A turntable with a moment of inertia of 0.029 kg*m^2 rotates feely at 2.8 rad/s. A circular disk of mass 270 g and diameter 20 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) What is the

    asked by Unknown
  236. math

    2/9x -1 = 1 How do I find the value of x

    asked by Kris
  237. grammar

    Benjamin Franklin was both a statesman and an inventor. what is the correct way to parallel this sentence?

    asked by nichole
  238. Economics

    Budweiser (now owned by a Belgium based beer company), Miller and Coors who together produce 85% of all beer consumed in the US, each spend well over $250 million a year on television advertising campaigns, promoting their beer brands. Obviously, if one

    asked by Bill
  239. math

    what happens when have two same sides ?

    asked by rossy
  240. Accounting

    Glanville Distribution markets CDs of the performing artist Harrilyn Clooney. At the beginning of March, Glanville had in beginning inventory 1,500 Clooney CDs with a unit cost of $7. During March Glanville made the following purchases of Clooney CDs.

    asked by Joan A
  241. English 12

    I need help diagramming the following; gerund, verb, infinitive, subject, prepositionalphrase, direct object, object compliment, participial phrase, and indirect object.

    asked by addowlin21
  242. algebra 2

    Create a quadratic equation with the solutions x=-2 and x=6 would x=-2 = x=0 would x=6 = x = 0?

    asked by please help
  243. physics

    почему отодвигать линзу нужно на такое малое расстояние как 1 см?а что,

    asked by ***********************
  244. nutrition

    Date of W.I.C Appointment Jonathan's Age Jonathan's Height Jonathan's Weight Lab Values: Hemoglobin Lab Values: Lead 8/1/05 30 months 35.5 inches 27 lbs 10.3 10.2 5/2/05 27 months 35 inches 26.5 lbs 2/4/05 24 months 34.5 inches 26 lbs Your first step is to

    asked by kim
  245. English

    Write the letter that best identifies the type of evidence given in the statement. 1. Caryn is good at defense. She had seven steals in the last game. A. first-hand observation B. reason C. fact D. example I think it's D? 2. The team's success is largely

    asked by anthony
  246. Math

    Hi, I have to write a 2 page paper on any subject in math that interests me. It can be about topics such as fibonacci numbers, rational or irrational numbers, golden ratio/rectangle, platonic solids, probability, etc. Can you help me get started. Thanks :)

    asked by Jon
  247. physics

    a suitcase weighs 30 kg wt.everytime i weigh it on a spring balance,the reading is different.WHY?

    asked by mahi
  248. grammar

    When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects. what is the correct parallel structure

    asked by nichole
  249. Chemistry

    Use the standard reduction potentials in volts: Cu^2+ --> Cu+ +0.16;

    asked by JBug!
  250. Chemistry

    Use the standard reduction potentials in volts: Cu^2+ --> Cu+ +0.16; I2--> I- +0.54. calculate the value of E (in volts) for a cell in which the overall reaction is= 2Cu+ + I2--> 2Cu^2+ + 2I-

    asked by JBug!
  251. English

    1. A poll of five thousand people has indicated that 57 percent of the nation drinks juice for breakfast every day. A. inductive reasoning B. deductive reasoning C. valid but untrue syllogism D. reductive reasoning I think it's A? 2. All persons want to

    asked by anthony
  252. math

    Jane and Kathy are playing a game of marbles. In each game the loser gives the other girl a marble. When they are finished Jane had won 15 times and Kathy had 22 more marbles than wen she had started . How many games did they play?

    asked by sara
  253. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by JRoussel
  254. physics: Heat

    You have 325 g of water at 18C. What is the most ice (at 0C) that you could put into this water and have it all melt?

    asked by taylor
  255. Algebra

    i don't know how to slove the/A system by using substitution 3x+4Y=9 y=x-3

    asked by jason
  256. stats

    In a gallup poll of 1,038 adults, 540 saif that second hand smoke is very harmful. What is the percentage of adults who said second hand smoke is very harmful?

    asked by cole
  257. Chemistry

    Consider the standard cell at 25C based on the following half-reactions. Pb^2+ + 2e^- --> Pb E=-0.13V Zn^2+ + 2e^- --> Zn E=-0.76V To the standard cell, OH-, is added to the zinc compartment causing precipitation of Zn(OH)2. After precipitation is

    asked by JRoussel
  258. Physics

    100,000J of heat is added to a 2.0KG of ice at -8degrees C. How much ice melts?

    asked by Chris
  259. Essential Mathematics 2

    Find the surface area of the closed rectangular box shown 6cm, 5cm, 3cm S.A.= (LW)+2(HL)+2(HW) I did: (5x6)+2(5x3)+2(6x3)=96 am I correct?

    asked by DestinyLashea
  260. English

    In the book "Of Mice and Men" by John Steinbeck, what did you learn in the first section?

    asked by Sean Micheals
  261. English

    In the book "Of Mice and Men" by John Steinbeck, describe the atmosphere that is created by the imagery in the first two paragraphs of the novel.

    asked by Sean Micheals
  262. Integrated Physics and Chemistry

    The ____ motion of a star can be determined by studying its spectrum

    asked by ashlee. :D
  263. Comic Strip for Red River Colony

    Before I do the comic strip. I made a summary of the main events that happened at the Red River Colony to grasp a better idea of the comic strip project. Since I'm doing the summary. Could I get some help shortening sentences. Cause I need help writing

    asked by Emma
  264. math

    Parker Inc. purchased a $30,000 asset with a salvage value of $1,200 and an estimated useful life of three years. What is the book value at the end of years one and two using the 150% declining balance method?

    asked by Anonymous
  265. Spanish

    1. Sí, sus padres _______; Ramon no debe ir a la escuela. a. está enfermo b. tienen razón c. son amables d. viven cerca de aquí A? 2. "¿Prefieren Uds. una casa pequeña o una casa grande?" "_____ una casa grande." a. Prefiero b. Prefieres c. Prefieren

    asked by mysterychicken
  266. Thermo Dynamics

    Air loses heat to the surroundings at a rate of Q.= t/6 where out Q. is in Watts and t is time in seconds. For 20 minutes of operation, determine the heat loss from the air in kWhr???

    asked by Justin
  267. Chemistry

    which isotope can be used as a tracer to study the age of organic material ? 1 C-12 2 C-14 3 Tc-99 4 U-238

    asked by Jazmin