Questions Asked on
January 3, 2013

  1. Physics

    A 5000 kg African elephant has a resting metabolic rate of 2500 W. On a hot day, the elephant's environment is likely to be nearly the same temperature as the animal itself, so cooling by radiation is not effective. The only plausible way to keep cool is

    asked by Mike
  2. Algebra II

    The weight of a body varies inversely as the square of its distance from the center of the earth. If the radius of the earth is 4000 mi, how much would a 200 lb man weigh 1000 mi above the surface of the earth?

    asked by MJ
  3. calculus

    integrate the following (3y-7x-3)dx+(7y-3x-7)dy=0

    asked by waqas
  4. math

    Find two consecutive positive integers whose product is 132.

    asked by LP
  5. phy

    Review. An object with a mass of m 5 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R 5 0.250 m and mass M 5 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing

    asked by Anonymous
  6. Can someone help me?!

    The 1st, 5th and 13th terms of an arithmetic sequence are the first three terms of a geometric sequence with a common ratio 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

    asked by Jm
  7. Math

    The average eye blinks once every 5 seconds.Is that more than or less than a hundred thousand times per day?Explain your answer. I think the eyes blinks less than a hundred thousand times.I say this because in60 seconds the eyes would blink 12times,so for

    asked by Zacko
  8. Physics...Equilibrium (physics of a clothesline)

    A clothesline is attached to two fixed ends which are 10.0m apart. A pulley of mass 40.0kg hangs freely in the middle of the line. The sag at the centre is 0.20m. Find the tension in each half of the clothesline.

    asked by Leo
  9. Series and sequences

    Three numbers a,b, and c form a geometric series so that a+b+c=35 and abc=1000. Find the values of a,b,c.

    asked by Shaira
  10. math

    How far is the point described by the ordered pair (4,5) from the x axis

    asked by Avriance
  11. calculus

    integrate it by integrating factor (cos^3x)dy/dx +ycosx=sinx

    asked by waqas
  12. math

    write the expression as a sinle logarithm. express powers as factors. In (x/x-1)+In(x+1/x)-In(x^2-1) Please show work.

    asked by Austin
  13. algebra

    Coulld someone take the time and check my answers please. 11) without graphing is the system independent, dependent, or inconsistent? y=-x+5 -3x-3y=-15 (my answer; dependent) 12) your club is baking vanilla and chocolate cakes for a bake sale. they need at

    asked by Lee
  14. Ethical Dilemmas/Criminal Justice

    Which statement is NOT consistent with Ethical Formalism? a. Moral law is self-imposed b. Moral actions are determined by reason c. lying is never justified d. individuals cannot control the consequences of their decisions. I believe it is D

    asked by Deb
  15. Calculus

    A colony of bacteria is grown under ideal conditions in a laboratory so that the population increases exponentially with time. At the end of 2 hours, there are 4,800 bacteria. At the end of 4 hours, there are 19,00 bacteria. How many bacteria were present

    asked by Oj
  16. Forensics

    A sample of light brown powder found in the kitchen of an alleged drug house gives a blue precipitate with cobalt thiocyanate. What is it? Is there enough evidence to prosecute?

    asked by anon
  17. statistics

    A sample of 25 different payroll depts. found that the employees worked an average of 310.3 days a year with a standard deviation of 23.8 days. What is the 90% confidence interval for the average days worked by employees in all payroll departments?

    asked by Anonymous
  18. Chemistry

    A sample of iron(II) sulfate was heated in an evacuated container to 920 K, where the following reactions occurred. Reaction (a): 2 FeSO4(s)--> Fe2O3(s) + SO3(g) + SO2(g) Reaction (b): SO3(g)--> SO2(g) + 1/2 O2(g) After equilibrium was reached, the total

    asked by Cameron
  19. Math

    A scale drawing of a house is drawn with a scale of 1 in. : 16 ft. Find the actual length of a hallway that is 5/8 in. On the scale drawing. Show your work

    asked by Dennis
  20. English Hamlet...Writeacher

    Kristy Cheung Ms.Weately Grade 11 U English January 10, 2013 The Tainted Mirror A person who sets off another person by being a contrast to that person is known as a foil to the character. In Shakespeare’s great tragedy Hamlet, two character Laertes and

    asked by Kristy
  21. calculus

    The ellipse x^2+3y^3=13, has two points when x+-1 . Find the slope of the ellipse at both these points. 2. Thoroughly explain the method you used to find the slope in part 1. What are the strengths and weaknesses of the method you used? 3. Explain whether

    asked by erika
  22. maths

    medians of triangle ABC intersect at G. if ar(triangle ABC) = 27 CM^2, then ar(triangle BGC) =?

    asked by Anonymous
  23. math

    6-2(3-7)^2÷(-4)= can you explain how to solve it, please?

    asked by Annabella
  24. early childhood

    a child bringing the mouth into contact with a nipple i think its rudimentary reflex. Am i right?

    asked by marcia
  25. Ethical Dilemmas/Criminal Justice

    Which of the following is an example of a value? a. It is raining b. Rain is good c. He is a liar d. He is a criminal I think the answer is A

    asked by Deb
  26. plzz HELP me

    If it is Ms.Sue or WRITEACHER do not bother because i know you do not help if your going to help than help but if not than don't but i don't want to hear complaining about not helping now anyone please help _______ , seen here in Figure 10-2, has ladder

    asked by peace
  27. Psychology

    Gayla's treatment for bulimia and binge eating has been highly successful. It is most likely that her treatment involved a combination of: A. cognitive therapy and behavior therapy B. psychodynamic therapy and behavioral skills training C. systematic

    asked by Angie
  28. MATH126

    I was 29 when my son was born, what equation would I use to figure out what our ages would be when I am exactly three times his age?

    asked by LeeV
  29. math

    Are there any zeros in the quotient 495 divided by 4 how can you tell with out finding the quotient?

    asked by Anonymous
  30. math

    how do I correctly show four as an array?

    asked by anna
  31. Health 8R

    If you take a AIDS antibody test. If the results are positive is.. that's good or bad?

    asked by Laruen
  32. math please help imedietely

    Are there any zeros in the quotient 495 divided by 4 how can you tell with out finding the quotient?

    asked by Anonymous
  33. army

    1. List the five Components of Fitness. 2. There are seven recognized Principles of Exercise; List at least five of them. 3. You are designing a fitness program for your Soldiers; list the Three Phases of Conditioning that you must consider. 4. When we

    asked by Anonymous
  34. Math

    I have to factor 15x^2+2x-24 How can I do this?

    asked by Jacob
  35. math

    which expression below shows how much paul woud collect in week if he had 40 clients recieving daily plus sunday delivery,and 25 clients recieving sunday delivery only?

    asked by kettelaine doxy
  36. physics

    A 5.56 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 10.7 N at an angle theta = 17.0° above the horizontal, as shown in the Figure. The coefficient of kinetic friction between the block and the floor is 0.06. What is

    asked by jim
  37. Physics

    On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched from Earth and reached Mars on March 10, 2006. The orbiter is in roughly circular orbit about 390 km above the martian surface. Mars has a radius of 3396 km and a mass of 0.642 x 1024 kg

    asked by Alex
  38. Physics

    c) A penny sits 12 cm from the center of a record turning at 33 1/3 rpm. What is the tangential speed in m/s? d) A mass spins with a tangential speed of 1.2 m/s on the end of a string which is 0.75m long. What is the period of the rotation in seconds?

    asked by Alex
  39. Physics

    A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating

    asked by Alex
  40. Physics

    A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tangential velocity, v, of the plane? .

    asked by Alex
  41. Physics

    A coin is placed on an old record turntable which rotates at 78 rpm. The coefficient of friction between the record and the coin is 0.17. a) What is the angular speed of record in radians/s? b) At what distance (m) from the center will the coin begin to

    asked by Alex
  42. chemistry

    though water has V shaped,why doesnot it scratch our throat?

    asked by sushila
  43. For Kristy - re Hamlet

    http://www.jiskha.com/display.cgi?id=1357147928 and http://satomko.hubpages.com/hub/Fortinbras-as-a-Foil-for-Hamlet Do. Not. Plagiarize. If you are not clear on what plagiarism is and how NOT to plagiarize from a source, read through this entire webpage

    asked by Writeacher
  44. Chemistry 1

    We are working on molarity of a solution in my class, and I am a little stumped on how to set the problems up. Here is one question from my homework. How many grams of NaCl are needed to make 575mL of 1.5 M NaCl solution? Thank you in advance :)

    asked by Emily
  45. math

    calculate ratio of the area to volume for unit cube, a unit sphere inscribed inside the cube and as right cylinder inscribed inside the cube

    asked by azhar
  46. exponential fuction

    what is y=f(x)=1/3)x rounded to the nearest thousandth

    asked by beth
  47. maths

    The mean age of 30 students in a class is 14 years .5 students with mean of 15 years left the class. Find the mean age of the remaining students?

    asked by Anonymous
  48. Chemistry

    An aqueous solution of (NH4)2SO4 has a pH lower than 7. Explain this observation. Thanks! :)

    asked by Matt
  49. Spanish 2

    I turned these in and my teacher said all my answers were wrong. I'm so confused because when I go through my chapter it says differently.Can someone please help?! A. Supply the correct form of the adjective. 1. rojo Hay una pluma _____ encima de la mesa.

    asked by Caroline
  50. grammar

    Which sentence would be right? 1. Two things I would like to change academically are to change 2. Two things I would like to change are changing

    asked by Celest
  51. math

    find the 8th number in the pattern

    asked by helen
  52. Business Math

    Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four decimal places.) Enclosed by y = ln x, y = 2

    asked by Zia
  53. maths

    the angles of a triangle are arranged in asscending order of magnitude. if the diffrence between two consecutive angles is 10degree ,find all the three triangles

    asked by Anonymous
  54. Math/Finance

    How much would an initial investment of $500 be worth in 90 days if it earned 3% daily?

    asked by Sharon
  55. math

    3 written ratios for 4 apples for $1

    asked by Caitlyn
  56. calculus

    solve it by integating factor dy/dx + (x+1/x)y=e^-2x

    asked by waqas
  57. Algebra

    Kendra owns a restaurant. She decides to charge $1.50 for two eggs and one piece of toast and $0.90 for one egg and one piece of toast. How much money is she charging for each egg and each piece of toast?

    asked by Jenny
  58. physics

    How physics relate on building snowman

    asked by Khairiya
  59. math

    Andrew has $40. He wants to buy a $15 cd and as many $6 posters as he can. What is the greatest number of posters he can buy? I did 40>or=15+6x -15 to each side 25/6> or=6x/6 4.17> or = x so he can buy 4 at most Is this correct? Thanks

    asked by es
  60. maths

    A line intersects the y axis and x axis at the point P and Q respectively.If (2,-5) is the mid point of PQ,then the coordinates of P and Q are respecively

    asked by Anonymous
  61. physics

    A car is moving at 37 m/s. It slams on its brakes and comes to a stop in 22 m. What was the acceleration from the brakes?

    asked by spencer
  62. maths

    A sphere,cylinder,and cone are of the same radius and same height. Find the ratio of their curved surface area.

    asked by supreet
  63. statistics

    A food snack manu. samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and the sample standard deviation is .15, find the 95% confidence interval estimate for the true mean.

    asked by Kelly
  64. maths

    Mid-points of the sides AB and AC of a triangle ABC are ( 3 , 5 ) and ( -3 , -3 ) respectively,then the length of the side BC is

    asked by faizel
  65. Physics

    25 litre bottle of oxygen in a hospital. If the bottle is at 12 atmospheres, what volume of oxygen is available to the patient? If the oxygen is stored at 4 degrees C and used at 20 degrees, what difference does this make? (Assuming start volume and

    asked by Mac
  66. math

    which is equal to 435 in? A. 37ft B.36ft C.12yd 3 in D.12ft 3in

    asked by Shannon
  67. AFM

    Show the solutions of the two examples given in the notes. (Hint: Finding a "solution" means solving for all missing sides and angle measures in each triangle.) (a) If a = 4, b = 3, and A = 36o. (b) If a = 3, b = 4, and A = 48.59o

    asked by Kiana
  68. math

    Which is the value is in the solution set for the inequality -8-7x>6 A=-1 b=-2 c=-3 d=2 -8-7x>6 add 8 to each side -7x>14 -7/-7>14/-7 x

    asked by b6
  69. Algebra

    the length of a rectangle is 7 cm more than its width. find the demensions of the rectangle if its perimeter is 50 cm.

    asked by Dakota
  70. physics

    a 6 kg box is stacked on top of a 15 kg box. anet leans down and pulls her elbow on the top box, exterting a force downward of -122N. what is the normal force on the top box

    asked by roel
  71. math

    find the domain of the composite function fog. f(x)=x/x-2;g(x)=-8/x a. domain of fog is {x/?} b. the domain of fog is all real numbers

    asked by Kelli
  72. math

    find the functions f&g so that fog = H H(x)=squre root x^2+8 please show work

    asked by Kelli
  73. science

    can a force of IN acting over an area of 1m^2 called

    asked by anishka
  74. science

    can a force act on an object ever when it is not in contact . give examples

    asked by anishka
  75. Math help

    Two out of every 10 students in a school have a dog. Expressed as a decimal to the nearest hundredth, what is the probability that exactly 2 out of 6 students in a given class have a dog? (1 point) 0.33 0.02 0.20 0.25

    asked by Anne
  76. pre-calcus

    In the following function determine the domain, range, and asymptotes. f(x)= 5*(1/3)^x

    asked by Brock
  77. CHEMISTRY

    WHAT IS THE NAME AND CLASS OF Br-CH2-CH2-CH3

    asked by ERERER
  78. math

    chane the logarithmic expression to an equivalent expression involving an exponent log416=x **the 4 is supposed to be dropedd down lower by the g.**

    asked by Heather
  79. math

    Solve the following equation. log4(x+2)=lo4^7 Both of the 4's should be dropped down.

    asked by Austin
  80. math

    The fourth grade has 102 students.it has three times as many students as Mrs pride class.how many students are in Mrs pride class?

    asked by aribel
  81. maths

    If O is the centre of a circle, PQ is a chord and the tangent PR at P makes an angle of 50 degree with PQ, then find angle POQ.

    asked by supreet
  82. Home, School and community

    When implementing a Parent Education Program, teachers act primarily as___, while families define their needs. A. experts B. interventionists C. educators D. resources

    asked by Karen
  83. maths

    Consider the sequence 1,-2, 3,-4, 5, -6,.........., n(-1)^(n+1) What is the average of first 300 terms of the sequence?

    asked by Anonymous
  84. maths

    AD is a median and P is the midpoint of AD of triangle ABC. BP and CP are joined show area (BPC)=area(ABD)

    asked by Anonymous
  85. algebra

    Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much

    asked by Lee
  86. math

    use properties of logarithms to condense the loarithmic expression. write expression as a sinle logarithm whose coefficient is 1. where possible evaulate the expression. 1/8[3 In(x+5)-In x-In(x^2-4)] Please show work

    asked by Austin
  87. algebra

    Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much

    asked by Lee
  88. chemistry

    The temperature of a dilute 0.847 M solution of NaBr was increased from 25 degrees Celcius to 40 degrees Celcius. What effect did this temperature change have on the molarity of the NaBr solution?

    asked by bob
  89. algebra

    a minus the fraction a^2-a-6 over 2(a-3) thank you

    asked by Josie
  90. math

    The sum of the squares of two positive consecutive is 41. Find the integers.

    asked by LP
  91. Business Ethics

    A manager refuses to reveal company secrets despite an offer of handsome kickbacks. I believe that the answer is C: The company policy states that anyone found guilty of such an act will be suspended

    asked by NeNe
  92. English....Writeacher checkthis out!

    I DID IT!:) The Tainted Mirror In Shakespeare’s great tragedy Hamlet, three characters Hamlet, Laertes and Fortinbras, develop as “foils,” or contrasting characters. Several comparisons and contrasts can be shown between the three characters, many of

    asked by Kristy
  93. math

    how do you the square root of 25 and 36 ?

    asked by frankie
  94. mmm

    What is the slope of the line that is perpendicular to the line whose equation is 3x +2y = 9?

    asked by Anonymous
  95. physical science

    Using Fig. 4.28 as an example, how much applied force would the man need to have to pull the block (weight or output force = 500 N) if the rope he is holding is 7 m long and the rope on the pulley is 2 m long? (Hint, the pulley is a simple machine)

    asked by tina
  96. maths

    a circular flower bed is surrounded by a path 3m wide the diameter is 44m what is the area of this path

    asked by aisha
  97. maths

    the circumference of a circle 314cm find the radius and the area

    asked by aisha
  98. AP US History

    In the early 19th century, Americans sought to resolve their political disputes through compromise, yet by 1860 this no longer seemed possible. Analyze the reasons for this change. Im having problems finding information to support this. This is my

    asked by Morgan
  99. algebra

    4a-3/4-3

    asked by shradha
  100. maths

    the minute hand of a circular clock is 18cm long how far gdoes the tip of the hand move in 2 hours

    asked by aisha
  101. math (algerba 1)

    A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?

    asked by Ashley
  102. biology

    biology is the study of what?

    asked by wayne
  103. Math

    6/2 ( 1+2)

    asked by Janae
  104. Spanish Check??

    Preterit and imperfect? StartFragment --> A. Choose the correct preterite tense conjugation. t� (dar) das dabas diste B. Choose the correct imperfect tense conjugation. las gatas (ir) iban van fueron C. Choose the correct preterite tense conjugation.

    asked by Victoria
  105. Spanish Check??

    A. Choose between the preterite or the imperfect. 1. We wanted to buy the car. QuisimosQueríamos comprar el auto. 2. The man refused to speak. El hombre no quisono quería hablar. 3. They found out the news yesterday. SupieronSabían las noticias ayer. 4.

    asked by Victoria
  106. Spanish Check??

    Anwser in spanish. Comprensión; ¿En qué siglo los conquistadores conquistaron América? ¿Cómo se llama la capital antigua de Perú? ¿Qué animal fue importante para el éxito de los conquistadores? ¿Cuál país conquistó Hernán Cortés? ¿Cómo se

    asked by Victoria
  107. Science

    in a liquid form which one could be considered an electrolyte H2so 4 Hcl, C3h8 or Naci

    asked by Reene
  108. Please help

    A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?

    asked by Ashley
  109. Earth science

    Review the 1906 Quake that hit San Francisco and answer the questions below. 1. San Francisco is found to have been constructed on several large strike-slip faults. If these faults become active, what specific type of damage (based on the type of fault

    asked by Vanessa
  110. history

    did ludwig van beethoven die on March 26,1827

    asked by Kandy Bear
  111. Math

    5. Write an inequality for the word sentence: k is less than zero. Help please I don't get this one at all

    asked by Nia
  112. Math

    Mike has 4 times as many nickels as dimes. How many of each does he have if he has a total of $2.40

    asked by ANONYMOUS
  113. Physics

    On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched from Earth and reached Mars on March 10, 2006. The orbiter is in roughly circular orbit about 390 km above the martian surface. Mars has a radius of 3396 km and a mass of 0.642 x 1024 kg

    asked by Alex
  114. Physics

    c) A penny sits 12 cm from the center of a record turning at 33 1/3 rpm. What is the tangential speed in m/s? d) A mass spins with a tangential speed of 1.2 m/s on the end of a string which is 0.75m long. What is the period of the rotation in seconds?

    asked by Alex
  115. psychology

    At the age of four months, Zach was excitable and fearful. His dad taped a colorful picture beside the changing table to entertain Zach during diaper changes. Zach overreacted to the picture and became agitated and nervous. During his school years, Zach is

    asked by angie
  116. Physics

    A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating

    asked by Alex
  117. King

    Oder the numders from least to greastest 3/8 5^-3 0.003 square root of 5 4/7

    asked by Niema
  118. Physics

    A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tangential velocity, v, of the plane? .

    asked by Alex
  119. Physics

    A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tension in the string?

    asked by Alex
  120. Physics

    A coin is placed on an old record turntable which rotates at 78 rpm. The coefficient of friction between the record and the coin is 0.17. a) What is the angular speed of record in radians/s? b) At what distance (m) from the center will the coin begin to

    asked by Alex
  121. Math

    solve for w . p=2(l+w)

    asked by ANONYMOUS
  122. Math

    The measure of one of two complementary angles is 21 less than twice the measure of the other angle. Find the measure of each angle

    asked by ANONYMOUS
  123. Math

    The sides of a triangle are three consecutive odd integers. The perimeter of the triangle is 39 inches. What is the length of each of the three sides?

    asked by ANONYMOUS
  124. scince

    What is the difference between chemical and physical change?

    asked by eduarda
  125. health

    There are ________ of muscles that are responsible for chewing movements or mastication. A. Two pairs B. Three pairs C. Four pairs D. Five pairs

    asked by sam
  126. Chemistry

    Balance equation c2h3cl + br2

    asked by Cris
  127. geography

    Discuss the origin, diffusion, and impact on the cultural landscape for one of the following: A) folk housing styles in the United States. B) Buddhism in Asia. C) English in South Asia.

    asked by Marsha
  128. English

    Is this a statement of opinion? In the Doorbell Rang, the author shows the way division works. I think it is am I right?

    asked by Moby
  129. 5th grade math (word problems)

    I'm not sure how to solve the following problem: If you divide 1/10 of a dollar into parts that are each 1/100 of a dollar, how many parts are there? What are they called? To solve, would part of the answer be that i would have 10 parts of 1/100 (because I

    asked by Alex
  130. math

    using only one cut , how would you divid 7 pieces of licorice among 5 people so that each people gets the same amount of licorice without bending the licorice

    asked by eduarda
  131. Social Studies

    What us a Political Cliff? I am supposed to write a summary about the subject.

    asked by Jesse
  132. physics

    If a mineral has a gravity of 5.5, how much more matter is there in 1 cm3 of this mineral than in 1 cm3 of water?

    asked by Kathie
  133. Precalculus

    Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π). 8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve algebraically for exact solutions in the interval [0,2π). Use your grapher only to support your algebraic work. 24. cos2x+sinx=0

    asked by Anonymous
  134. Physics

    State the expression for moment of inertial of the following (1) A rod (2) rectangula plate (3) ring (4)circular disc

    asked by Pharmacool
  135. math

    using only one cut , how would you divid 7 pieces of licorice among 5 people so that each people gets the same amount of licorice without bending the licorice

    asked by carina
  136. Physics

    State the expression for moment of inertial of the following (1) A rod (2) rectangula plate (3) ring (4)circular disc

    asked by Pharmacool