Questions Asked on
February 14, 2016

  1. Chemistry

    A solution containing equal masses of glycerol, C3H8O3, and water has a density of 1.10 g/mL. Calculate the molality of glycerol. I got 11.9 m.

    asked by Student
  2. algebra

    The number of years, N(r), since two independently evolving languages split off from a common ancestral language is approximated by N(r)= -5000 1n r, where r is the proportion of the words from the ancestral language that is common to both languages now.

    asked by mm
  3. Chemistry

    1. As the intermolecular forces between molecules increase in magnitude, do you expect each of the following to increase, decrease or remain the same? My answers: Viscosity: increase Boiling point: increase Vapor pressure: decrease Surface tension:

    asked by Student
  4. Science

    Why are weather balloon soundings done at the same time around the world?

    asked by Anonymous
  5. Maths

    principal = 3000 rate =35/4 time = 1year 2 months interest =

    asked by Jash
  6. Maths

    Find the equation of the parabola with latus rectum joining the points (3,5) and (3,-3)

    asked by Angelina
  7. science

    the radius of planet x is twice that of the earth and its mass is also twice that of the earth. The gravitational acceleration on planet x would be approximatley?

    asked by thabo
  8. math

    sum of 1 to 198 odd positive intigers

    asked by anil
  9. Math

    One positive integer is three moee than twice another and their sum is greater than 65 but less than 75. What pairs of integers satisfy this conditions?

    asked by Raquel
  10. Maths

    Find the equation of the parabola with its axis parallel to x-axis and passing through the points (-2,1),(1,2),(-1,3)

    asked by Angelina
  11. math

    1) the electronic scoreboard at the cricket stadium is 10m^2. For the world cup the score board was enlarged. They increased the length by 1m and the width by 3m. By doing so, the area of the scoreboard tripled. Determine the original length and width of

    asked by l.x.masher
  12. chemistry

    a) The combustion of an organic compound in the presence of excess oxygen produced a gas , which makes clear lime water turbid. What element can be identified? 

    asked by angy
  13. Maths

    The vector v has magnitude 17 and makes an angle of 105 with the positive x direction. Express v in terms of components, with i and j being unit vectors pointing in the positive x and y directions.

    asked by Emma
  14. maths

    At 3h00 a clock strikes the bell 3 times. The time between first and last strike is 30 seconds. How long does it take to strike the bell at 12h00?

    asked by Tsholo
  15. maths

    A tramp collects end-stubs of cigarettes and makes one full cigarette with every 6 end stubs. If he gets 72 end stubs how many full cigarettes can he smoke?

    asked by Tsholo
  16. Physics

    A tug is capable of building a ship with a force of 100 KN.if two such tugs are pulling on one ship,they can produce any force ranging from a minimum of 0 KN to a maximum of 200 KN.give a detailed explanation of how this is possible. Use diagram to support

    asked by Chipu
  17. maths

    A tramp collects end-stubs of cigarettes and makes one full cigarette with every 6 end stubs. If he gets 72 end stubs how many full cigarettes can he smoke?

    asked by Anonymous
  18. maths

    a quality control inspector found that 1.3percent of 1500 computer inspected were defective how many computer were defective

    asked by ali
  19. Mathematical Literacy

    How many hours,minutes and seconds makes 1461 days ?

    asked by Shereen
  20. maths

    Let (xk) ⊂ Rn and x ∈ Rn: Show that xk → x in Rn if and only if for every y ∈ Rn the sequence (⟨xk; y⟩) ⊂ R converges to ⟨x; y⟩, that is, ⟨xk; y⟩ → ⟨x; y⟩ in R.

    asked by Alice
  21. maths

    a survey of 250 people showed that 220people favored a candidate for re-election what percent of the people surveyed favoured the candidate

    asked by ali
  22. Foundations 06042400

    1. When a manager performs symbolic duties as the head of an organization, that manager is called a A. spokesperson. C. leader. B. figurehead. D. liaison. 2. What is one characteristic of the Industrial Revolution in America? A. The farming society grew to

    asked by Kroppy
  23. chemistry

    Solutioin A is sodiun hydroxide prepared by dissolving 2.0g in 250cm what is molar concentration of sodium hydroxide

    asked by ruth
  24. maths

    there were 13426 eligible voters for a certain election one election day 8206 people cast their vote what wase the percent of voter turn out

    asked by rana
  25. physical sciences

    Calculate the mass in kilograms of one atom of ununhexium

    asked by sunday
  26. Chemistry

    A bolt is ordered with a thread of a diameter of 1.25 inches, what is the diameter in millimeters? If the order was mistaken for 1.25 centimeter by how many millimeters would the bolt be in error?

    asked by Tom
  27. Math

    Each side of a cube is increasing at the rate of 9cm/s . When the lenght of each side is 5 cm , find the rate of inscrease of its volume and total surface area .

    asked by Borhan
  28. math

    The ages of two children are 11 and 8 years. In how many years' time will the product of their ages be 208?

    asked by Tofunmi
  29. Chemistry

    calculate kp for the reaction below. PCl3(g) + Cl2(g) ⇌ PCl5(g) How can I calculate it?

    asked by JPR
  30. maths lit,business,history,english,life orientatio

    Traditional african marriage is an advantage to men only not women

    asked by lerato
  31. algebra

    three more than the product of 17 and Matt's height

    asked by angela
  32. Math

    The height of cylinder is deacrease at 0.3cm/s whereas its radius increase at the rate of 0.4cm/s.determine the rate of change of its volume if the radius and the height of the cylinder are 10 cm and 12 cm

    asked by Borhan
  33. english

    can anyone check my work?please

    asked by Anonymous
  34. science

    What do you mean by law of conservation of energy. Use this law to find speed of an object just before hitting the ground if it is allowed to fall through a height of 19.6m.

    asked by peehu goyal
  35. Programming

    #include int main() { char ch; printf("Enter Your State Name : "); scanf("%c",&ch); if(ch == 'a') printf("Shipping Charge : $25"); else if(ch == 'b') printf("Shipping Charge : $50"); else if(ch == 'c') printf("Shipping Charge : $65"); else printf("The

    asked by Borhan
  36. english

    Traditional African marriage is an advantage to men only not women

    asked by lebo
  37. chemistry

    Q1) Write down all possible dissociation reactions of the following species: a) Perchloric acid. b) Propanoic acid. c) Ammonium ion. d) Sulfurous acid.

    asked by hes
  38. Physics

    Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 845-kg electric car be able to supply to do the following? (a) accelerate from rest to 25.0 m/s in 1.00 min (b) climb a 200-m high

    asked by Laura
  39. science

    Determine graphically the equilibrant of two forces of 15N and 20N if the angle between them is 135degrees

    asked by Homework
  40. science

    A light inelastic string connects two objects of mass 6kg and 3kg respectively. They are pulled up an inclined plane that makes an angle of 30 degrees with the horizontal,with a force of magnitude F. Ignore the mass of the string. Calculate the tension in

    asked by zama
  41. science

    it is possible for two obje to have the same dimensin but different units

    asked by khensytomboy
  42. math

    Draw four more rectangles with areas equal 24cm^2?

    asked by Moeketsi
  43. economics,english,mathslit,accounting,business,eco

    I don't know what to become when I grow up

    asked by Anonymous
  44. Java Programming

    I am trying to finish this final problem on my Java homework. Due to a death in the family I've missed a class and now am trying to get back on track. Write a driver class called GasPumpDriver that meets the following specifications: • Prompt the user to

    asked by Jay
  45. Chemistry

    1. Explain why the can collapsed using the Combined Gas Law where T1 is the initial temperature of the air inside the can before the can was inverted and T2 is the temperature of the air inside the can after it was plunged into the ice water. 2. Why did

    asked by Kissan
  46. COMPUTER

    WHAT IS THE PROGRAMME IN QBASIC THAT ALLOW THE USER TOENTER HIS/HER NAME AND THEN DISPLAY A WELCOME NOTE TO THE NAME.

    asked by JOEL
  47. Programming

    #include int main() { char ch; printf("Enter Your State Name : "); scanf("%c",&ch); if(ch == 'a') printf("Shipping Charge : $25"); else if(ch == 'b') printf("Shipping Charge : $50"); else if(ch == 'c') printf("Shipping Charge : $65"); else printf("The

    asked by Borhan
  48. life orientation

    evaluate how each of the following personality types deals with interpersonal conflict 1. passive/introvert 2. aggressive/bully 3. assertive/extrovert

    asked by nthabiseng
  49. AP Calculus AB

    Which integral gives the area of the region in the first quadrant bounded by the axes, y = e^x, x = e^y, and the line x = 4? The answer is an integral. I know y=e^x has no area bounded, but I don't know how to incorporate it all.

    asked by Vikram
  50. life orientation

    justify why each of the following attitudes and behaviour will be ineffective when dealing with interpersonal conflict 1. avoiding conflict 2. competing with one another 3. compromising your viewpoint

    asked by nthabiseng
  51. life orientation

    justify why each of the following personality types deals with interpersonal conflict: 1. avoiding conflict 2. competing with one another 3. compromising your viewpoint

    asked by Anonymous
  52. Finance

    Gluon Inc. is considering the purchase of a new high pressure glueball. It can purchase the glueball for $110,000 and sell its old low-pressure glueball, which is fully depreciated, for $20,000. The new equipment has a 10-year useful life and will save

    asked by Ted
  53. Math

    the ratio of father's age to his son age is 8:3. in 5 year's time the sum of their ages will be 54. how old are they

    asked by Allison
  54. life orientation

    discuss three ways in which one's acceptance of responsibility can influence effective communication

    asked by Anonymous
  55. Calculus

    Find the area of the region bounded by the graphs of y = x, y = 6 - 2x, and y = 0. (4 points) 3 6 9 None of these Please help I don't know how to do this

    asked by Ben
  56. Maths

    The probability that I have to wait at the traffic lights on my way to school is 0.45. Find the probability that on 3 consecutive mornings I have to wait: A) Once B) Twice

    asked by Cj
  57. Maths

    Two tetrahedral dice are thrown; one is red and the other is blue . The number on which each lands is noted, the faces being marked 1,2,3,4. Find the probability that the sum of the numbers on which the dice lands is 6 given that the red die lands on an

    asked by Luke
  58. chem

    Suppose a g is collected in 145 mL flask whef-tfle temperature of the gas is 23°C and the pressure of the gas is 785 mm Hg. Calculate the volume ofthe gas at STP.

    asked by Ashley
  59. algebra

    the 9th term of an A.P is 52 while he 12th term is 70. find the sum of is 20 term

    asked by wisdom
  60. World History (one small question)

    In the picture "The News Reaches Bogota" what is Bogota?

    asked by Anonymous
  61. math algebra

    List the following element 1) xuy 2) yut 3) xut 4) ynt

    asked by akinsipe rhoda
  62. Algebra

    The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 15 hours for a car moving at 54 mph. What is the speed of a car that makes the trip in 27 hours?

    asked by Marie
  63. Geometry 1

    Ship A and Ship B leave from the same point in the ocean. Ship A travels 150 mi due west, turns 65° toward north, and then travels another 100 mi. Ship B travels 150 mi due east, turns 70° toward south, and then travels another 100 mi. Which ship is

    asked by Anonymous
  64. chemistry

    The first ionization energy, E, of a boron atom is 1.33 aJ. What is the wavelength of light, in nm, that is just sufficient to ionize a boron atom? Values for constants can be found here.

    asked by Bibi
  65. chemistry

    Consider a sample of excited atoms that lie 3.211 × 10–19 J above the ground state. Determine the emission wavelength (in nanometers) of these atoms.

    asked by Anisha
  66. Science

    Two tugboat A and B tow alarge boat in an easterly direction the cable which are connected to A and B respectectively make angles of 45 degrees north of east and 30 degrees south of east to the direction of motion (question it the tension fa is equal to

    asked by Sanele
  67. life orientation

    List two issues in sport that can impede nation building

    asked by Anonymous
  68. Chemistry

    A first-order reaction has a half-life of 26.4 seconds. How long does it take for the concentration of the reactant in the reaction to fall to one-eighth of its initial value?

    asked by Student
  69. Chemistry

    A solution containing equal masses of glycerol, C3H8O3, and water has a density of 1.10 g/mL. Calculate the molality of glycerol. I got 11.9 m.

    asked by Student
  70. Discrete Math!

    Hi, How would you go about showing that the proposition below is a tautology using algebraic manipulation of logical equivalences (not using a truth table)? ( ( p ∨ q) ∧ ( p → r) ∧ ( q → r) ) → r Thanks!

    asked by Kylo Ren
  71. mathematics

    A book shelf contains x books.when 4/5 of the books are removed,I have 25 books left.how many were on the shelf.please show ur workings

    asked by martins
  72. Math

    A science class has 3 girls and 3 boys in the seventh grade and 4 girls and 1 boy in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she

    asked by Brooke
  73. Algebra ASAP

    Can anyone show me how to simplify this step-by-step? THANKS A MILLION! (6x^-2)^2(0.5x)^4

    asked by Astral Tellurian
  74. chem

    How do you do this? 4 NH3 + 3 O2 --> 2 N2 + 6 H2O c.) Assume 1.0 mol N2 is produced. Calculate the moles required for each reactant. Calculate the moles that can be produced for the other product. d.) Assume 0.40 mol H20 is produced. Calculate the moles

    asked by Deni
  75. kendy

    which of the following sentences demonstrates correct subject verb agreement? A) Neither the relics nor the ancient text reveal much about the ancient civilization. B)Neither the relics nor the ancient texts reveal much about the ancient civilization.

    asked by ashish
  76. 6th grade ss

    1.what two climates types dominate most of northern,eastern and southern Africa???? Please help! Ms.sue

    asked by Anonymous
  77. World History (one small question)

    When was the Panama Canal completed?

    asked by Anonymous
  78. American History

    Georgia's Continued use of the dealth penalty is an attempt to fulfill the governments purpose of _____. A.)Democracy B.)Order C.)Freedom D.)Equality

    asked by Anonymous
  79. American History

    A system of government in which the power to govern is concentrated in the hands of one individual is known as? A.) Autocracy B.) Democracy C.) Theocracy D.) Oligarchy

    asked by Anonymous
  80. American History

    If one leve of government provides money to another level of government and it is distributed according to a particular set of rules that specify who is eligible for the grant and how much each eligible applicant will receive, it is known as a_____. A.)

    asked by Anonymous
  81. physics

    two people kick a ball. one of them kicks it with a force of 215.0 newtons. the other one with 189.0 newtons. their approach creates a 210.0 degree angle at the point of impact and causes the ball to go in a different direction. what is the resultant of

    asked by momo
  82. Assessment

    Authentic and performance assessments strive for greater realism and complexity of tasks under the premise that real-life problems can often be solved ______________.

    asked by Chris
  83. math

    factor out greatest common factor x(x+13)+14(x+13)

    asked by janet
  84. Math

    Create a function which has the following properties: a. It has a horizontal asymptote at y=2 b. It has a discontinuity at x=2 which is not a vertical asymptote c. It has no other discontinuities or asymptotes

    asked by Cody
  85. Chemistry

    This is a stoichiometry equation. Cu(s) + 4(HNO3)(aq) -> Cu(NO3)2(aq) + 2(NO2)(g)+2(H2O)(l) If you use 6 moles of nitric acid 4(HNO3), how many moles of Copper (II) Nitrate Cu(No3)2 will be produced?

    asked by Bryce
  86. MATH

    What is the p.o.i for these set of equations (the substitution method) 2x+y=6 3x+2y=6 i tried to solve this many times but i keep getting different answers. What does x= and what does y=?

    asked by PLZ HELP ME
  87. chemistry

    If a solution containing 22.34 g of mercury(II) perchlorate is allowed to react completely with a solution containing 6.256 g of sodium sulfate, how many grams of solid precipitate will be formed?

    asked by alex
  88. PLZ HELP MATH

    this is pre calc arithmetic sequence. AT sea lvl pressure is 14.7 psi. It increases by 14.7 at every 30 ft descent. What is pressure at 1000 ft.

    asked by ISOSMEXY
  89. pre calc, also forget my previous question

    so at sea lvl pressure is 14.7. EVERY 30 FT DESCENT ITS INCREASES BY 14.7 PSI MORE. what is the pressure at 1000ft. my question is what would be the first term 14.7 or 29.4. AS 14.7 would be the 0 term. term 1 would be 29.4 as its 30 ft below. sea lvl

    asked by ISOSMEXY
  90. Math

    the amount (in milligrams) of a drug in the body t hours after taking a pill is given by A(t)=30(0.8)t . (a) What is the initial dose given? (b) What percent of the drug leaves the body each hour? Percent: (c) What is the amount of drug left after 9 hours?

    asked by Sarah
  91. Calculus

    Create a function which has the following properties: a. It has a horizontal asymptote at y=2 b. It has a discontinuity at x=2 which is not a vertical asymptote c. It has no other discontinuities or asymptotes Explain how your answer satisfies the previous

    asked by Cody
  92. Chemistry

    What is the volume of 2.0 kg of isopropyl alcohol at 20 degrees Celsius? Density at 20 degrees is 0.785g/ml. I got .00255 ml when using 3 sig figs.

    asked by Kaylee
  93. Chemistry

    What Mass Of Copper(i)oxide Is Formed By Burning 10.5g Of Copper(i)sulfide

    asked by Precious
  94. Physics

    A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water at an initial temperature of 20C. After a short time, the temperature of both the metal and water become equal at 25C. The

    asked by Jon
  95. Calc

    The figure shows the graph of f(x)=xe^x, x greater than or equal to 0. figure: f(x) curve is drawn and under the max. point/ concave down curve there is an inscribed rectangle. with width from a(left) to b(right) and height up to a certain point of f(x).

    asked by Betty
  96. Physics

    A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water at an initial temperature of 20C. After a short time, the temperature of both the metal and water become equal at 25C. The

    asked by Anonymous
  97. Algebra 2

    How would you write a polynomial function with rational coefficients so that P(x)=0 has the given roots? The given roots are -2,-2,3,5

    asked by Jess
  98. science

    A box is pulled across the floor a at constant speed it is pulled horizontal force of 48 N

    asked by otis
  99. Chemistry

    At what pressure would 0.150 mole of nitrogen gas at -23.0^o C occupy 8.90 L ?

    asked by Boberto
  100. socialstudies

    1. Which is an example of checks and balances? The constitution contains a bill of rights that details the basic rights of the state’s citizens. The constitution clearly outlines voting requirements and the qualifications for holding public office. The

    asked by boPy
  101. Economics

    4. Deregulation and the Cost of Trucking. Suppose the government initially limits the number of trucking firms that can haul freight. The market for truck freight is served by a single firm that produces five million ton-miles of service per year, where

    asked by Student
  102. Calculus

    An elementary student kicks a ball straight into the air with a velocity of 16 feet/sec. If acceleration due to gravity is -32 ft/sec^2, how many seconds after it leaves his foot will it take the ball to reach its highest point? Assume the position at time

    asked by John
  103. Algebra

    How do you find the zeroes of a function and their multiplicities? Y= (x-2)^3(2x+5)^2

    asked by Anonymous
  104. phy 231

    A car of mass 860.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 39.6 km/hr (11.0 m/s), the net power which the engine supplies is 5700.0 W (in addition to the extra power required to make up for air resistance and

    asked by Andrea
  105. Calculus

    The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are semi-circles. What is the volume, in cubic units, of the solid?

    asked by Belle
  106. SOC 203 Quiz Help

    Question 1. ALL BUT ONE of the following types of violence occurs because of gender inequality, according to Feminist theory: (Points : 1) rape intimate partner abuse sibling abuse x workplace violence Question 2. Which of the following is one of the ABCs

    asked by Mike
  107. Physics

    A toboggan approaches a snowy hill moving at 11.1 m/s . The coefficients of static and kinetic friction between the snow and the toboggan are 0.410 and 0.280, respectively, and the hill slopes upward at 42.0 ∘ above the horizontal. A)Find the

    asked by Samantha
  108. Math

    You think you need $1.5 million and your retirement advisor thinks you will average 8% a year on your account. How much will you need to contribute a year to your account if you have 40 years to your retirement?

    asked by Emilio
  109. pre cal 11

    the sum of the first n terms of an arithmetic series is Sn=2n^2+5n. Determine the first 3 terms. Help!!!

    asked by ISOSMEXY
  110. pre calculus

    Sn= 2n^2+5n IS THE SUM OF THE FIRST N TERMS OF AN ARITHMETIC SERIES. determine first 3 terms

    asked by ISOSMEXY
  111. science

    Two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of .300 m/s^2, while Sir Alfred's has a magnitude of .200 m/s^2. Relative to sir Ggeorge's starting point,

    asked by a
  112. physics

    Two knights on horseback start from rest 88.0 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of .300 m/s^2, while Sir Alfred's has a magnitude of .200 m/s^2. Relative to sir Ggeorge's starting point,

    asked by Anonymous
  113. Physics

    A shot-putter throws the shot ( mass = 7.3 kg) with an initial speed of 14.0 m/s at a 36.0 ∘ angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.20 m above the ground.

    asked by MB
  114. Math

    If you made $3,000 a year in contributions to your retirement account starting at the age of 25, making an average of 8% annual return, how much will you have at the age of 65?

    asked by Emilio
  115. Calculus

    Sorry this is really long. Just wondering how I would do each of these A particle is moving with velocity v(t) = t^2 – 9t + 18 with distance, s measured in meters, left or right of zero, and t measured in seconds, with t between 0 and 8 seconds

    asked by John
  116. Algebra

    In a right triangle, one angle measures x degrees where sin x degrees= 5/8. What is the value of cos (90 degrees-x) ?

    asked by Hannah
  117. Physical science

    What is the force of gravity between two 1215 kg cars separated by a distance of 31m on an interstate highway

    asked by Anonymous
  118. trigonometry

    I need help solving this problem. Question: At what points will the line y=-x intersect the unit circle x2+y2=1?

    asked by Mark
  119. Math

    You are currently making $70,000 a year after taxes and are interested in maintaining your current income. If you are expecting $2,500 a month from Social Security, how much will you need to withdraw from your retirement accounts monthly?

    asked by Emilio
  120. Math

    You are trying to decide if you have enough money to retire. You are expecting $2,500 a month from Social Security. You have $1.2 million in your retirement savings, and you only want to use the earnings to live on, which is at an 8% annual rate. You are

    asked by Emilio
  121. Chemistry

    Create a balanced equation for the reaction between sodium and bromine. Find how many grams of salt can be made from 5.00 grams of sodium and unlimited bromine. Is it about 39.8 g NaBr2?

    asked by Anonymous
  122. Math

    The base of a pyramid-shaped tank is a square with sides of length 12 feet, and the vertex of the pyramid is 10 feet above the base. The tank is filled to a depth of 4 feet, and water is flowing into the tank at the rate of 2 cubic feet per minute. Find

    asked by Betty
  123. Managerial Finance

    Isabelle wants to save up an amount of $150,000 for her son's college education fees, coming up in 5 years. Find the amount that should be invested today if the bank pays an interest rate of 5% compounded annually

    asked by Kim
  124. Chemistry

    Hey there! I have these two questions for my chemistry class, and I am a little confused on how I should go about solving them. If someone could give me the steps necessary to solve these problems I would be most appreciative. 1.) p-Toluenesulfinic acid

    asked by Ka_Chin
  125. Math!

    Hi, How would you go about showing that the proposition below is a tautology using algebraic manipulation of logical equivalences (not using a truth table)? ( ( p ∨ q) ∧ ( p → r) ∧ ( q → r) ) → r Thanks!

    asked by Kylo Ren
  126. Physics

    In the figure, the two blocks are attached by a massless rope over a frictionless pulley, and block M1 slides on the table without friction. The masses of the blocks are: M1 = 8.10kg and M2 = 3.90kg. Calculate the tension in the rope. ( g = 9.80 m/s2)

    asked by Heather
  127. physics

    (a) Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.561 m. What is the charge on each?

    asked by Tim
  128. precalc11

    arctic games held every 2 years. in 1970 it had 700 competitors in 2000 it had 2000. determine the ANNUAL growth rate. Helpppppppp!

    asked by ISOSMEXY
  129. URGENT! Due soon and I used 8 of 10 attempts

    Archaeologists can determine the age of artifacts made of wood or bone by measuring the amount of the radioactive isotope 14C present in the object. The amount of isotope decreases in a first-order process. If 14.5% of the original amount of 14C is present

    asked by Kayla