Questions Asked on
December 9, 2014

  1. general physics

    An axle of a mass of 10 kg, length 10 cm and radius .1 m is free to rotate about the axis which runs the length of the axle, throuhh it's center. A chain of mass 4kg is fastened to the axle at one end, wound exactly 6 times around the axle, and a rock of

    asked by sara
  2. Bio

    you were given 1.2*10^7 cells/mL solution. how many cells would be present in 100 microliters

    asked by Josh
  3. Math

    g(x) = (1-x)(4+6x) / (5x^2+4) Horizontal asymptote y = ?

    asked by Leon
  4. chemistry

    Why an atom is electrically neutral ?

    asked by Haseeb raja
  5. statistics

    Suppose you have information that the average stress score of students in online universities is 13.15. Using Minitab, compute a one-sample t-test to find out whether the stress scores reported by your sample are significantly different from those of the

    asked by edna
  6. physics

    The stone was thrown through a distance of 80 cm the act of throwing takes approximately 0.064 s. determine the launch velocity of the stone

    asked by mathew
  7. language arts

    how to diagram preepositional phrases

    asked by sophia
  8. Calculus

    Y=2sinx-cos^2(x) on [0, 2pi] How do you solve for the x-intercept

    asked by Anonymous
  9. physics

    A 17.9 kg block is dragged over a rough, horizontal surface by a constant force of 119 N acting at an angle of 30◦ above the horizontal. The block is displaced 40.7 m, and the coefficient of kinetic friction is 0.111. what is the final speed

    asked by Anonymous
  10. Algebra

    Perimeter is 290ft and length is 43ft longer than the width. What are the dimensions of the room

    asked by Deby
  11. Basic Statistics

    The math grades on the final exam varied greatly. Using the scores below, how many scores were within one standard deviation of the mean? How many scores were within two standard deviations of the mean? 99 34 86 57 73 85 91 93 46 96 88 79 68 85 89

    asked by Ann
  12. physics

    A 17.9 kg block is dragged over a rough, horizontal surface by a constant force of 119 N acting at an angle of 30◦ above the horizontal. The block is displaced 40.7 m, and the coefficient of kinetic friction is 0.111. what is the final speed

    asked by dsds
  13. Calculus

    lim (e^x+3x)^1/x as x approaches 0

    asked by Diolo
  14. Calculus

    Find the equation of the tangent line to the hyperbola 3x^2-4y^2=8 which is/are perpendicular to the line 2x-3y+6=0. Give the answers in general form.

    asked by Diolo
  15. Calculus

    Y=2sinx-cos^2(x) F"(x)=-sinx+cos^2-sin^2(x) Find the points of inflection and concavities

    asked by Anonymous
  16. math(5th grade)

    Gino wants to travel from home to school. Find how many routes are possible if he does not travel in a northerly direction.

    asked by ary
  17. Physical Science

    What is the temperature of oxygen that boils at negative 183 Celsius?

    asked by Kristina
  18. math

    simplest form of the ratio of rs20 to 50ps

    asked by arundhathi
  19. algebra

    I must solve the equation using elimination. I have have only 1 Variable on the left side of the equal sign. ( Elimination is most convenient when the variables are lined up ) 2x-4y=14 4y-x=-3

    asked by K A Y S H A
  20. Sociology

    How can I get an essay in Sociology?

    asked by helen
  21. English

    1. He skipped the class yesterday. 2. He missed the class yesterday. -------------- Are both the same in meaning? What other words can we use instead of 'skipped'?

    asked by rfvv
  22. English

    1. He must have been late for the school. 2. He muse have been late for school. --------------------------- Which one is grammatical? Do we have to put 'the' before 'school'?

    asked by rfvv
  23. English

    1. I set my watch by the radio. 2. I set my watch by the clock. 3. I set my watch by the TV. 4. I set my camera on automatic. 5. I set my camera on flash. -------------------- Are they all grammatical? Can we use 'according to' instead of 'by'?

    asked by rfvv
  24. math

    the perimeter of a rectangle is 56 m. the width of the rectangle is 4 m less than the length. find the length and width of the rectangle

    asked by ulol
  25. Chemistry - University

    Pentane (C5H12) and hexane (C6H14) form an ideal solution. The vapour pressure of pentane at 25oC is 511 mmHg and that for hexane is 150 mmHg. A solution is prepared by mixing pentane (density = 0.63 g/mL) and hexane (density = 0.66 g/mL). The mole

    asked by Gab
  26. Pre Algebra

    I can purchase a 30-ounce bottle of juice for $1.80 or a 64 ounce bottle of juice for $3.20. How much do I save per ounc by purchasing the larger bottle? 30 divided by 1.80= .06 4 dividec by 3.20= .05 Subtraction .06 by .05 Answer = 0.1

    asked by Ariana
  27. physics

    A particle of mass 0.2kg is found to stretch a certain spring by 5.0 cm. a. What is the force constant of the spring? b. By how much will a 1kg mass stretch the spring.

    asked by Hannah
  28. physics

    a fisherman noticed that his boat was lifted by the wter waves about once evry two seconds. He looked at the waves wnd estimated the length of a wave to be a 6cm. He also estimated the vertical distance between the highest point snd the lowest point of the

    asked by patris
  29. Chemistry

    At a given temperature and pressure how does the magnitude of the heat of vaporization of a substance compare with that of its heat of condensation?

    asked by Bruce
  30. math

    the sum of the ages of sam and tomas is 27 years. seven years ago, tomas was three years more than one-fourth as old as sam. find their present age

    asked by Anonymous
  31. Chemistry

    A liquid has a delta(Hvap) of 35.5 kJ/mol and a boiling point of 122 C at 1.00atm. What is its vapor pressure at 113 C?

    asked by Bruce
  32. Algebra 2 semester2

    A piggy bank contains $5.60 in nickels and dimes. The number of nickels is 8 less than 3 times the dimes. How many nickels and dimes are there in the piggy bank?

    asked by Juli
  33. algebra2

    10 points) Score 2. Allegra has a cell-phone plan that charges $65 per month and $0.10 for every minute that she uses the phone beyond what her plan allows. One month, she was billed $73.40. a. Define a variable for the unknown. b. Write an equation to

    asked by myira smith
  34. Math

    A carton contains 1 8/9 liters of apple juice. Rosalia drinks 1/6 liter of the juice every day. How much apple juice is left in the carton after a week?

    asked by Lee
  35. PChem

    For the gas phase reaction 2NO2 + F2 ¨ 2NO2F, the rate constant is k= 38 dm3/mol-s at 27 oC. The reaction is first-order in NO2 and first-order in F2. A) Calculate the number of moles of NO2, F2, and NO2F after 10.0 s if 2.00 mol of NO2 is mixed with

    asked by Debora
  36. English

    In "Telephone Conversation," which of the following best describes the shift in the speaker's attitude towards the landlady? A)from fuming to mischievous B)from angered to conciliatory C)from embarrassed to arrogant D)from cooperative to ninchalant

    asked by Andre
  37. Health

    Cessation methods that can be effective for treating tobacco dependence include ________. A. Behavioral therapy B. Nicotine patch C. Joining a support group D. All of the above D?

    asked by Night
  38. Euler's method help in Calculus?????

    Let dy/dx=xy . Use Euler's method with step size of 0.5 and the initial condition of y(0) = 3 to estimate y(2). I really am not sure if I did this right, but I got 3.4568 for y(2). I actually feel like it is wrong.

    asked by Jane
  39. Chemistry

    Dinitrogen tetraoxide decomposes to give nitrogen dioxide. Calculate the equilibrium concentration of NO2 at 100oC if the equilibrium constant is 0.200 and [N2O4] = 0.800M. N2O4(g) ¡ê 2 NO2(g)

    asked by Gail
  40. math

    Calculate the markdown percent. Round to the nearest tenth and do not enter the percent symbol in your answer. % b. If the offer was changed to "Buy 3, Get 2 Free," what would be the new markdown percent? Round to the nearest tenth and do not enter the

    asked by Anonymous
  41. physics

    an airplane flies 200km from city a to city b east,then 200km south from city b to c,and finally 100km northwest to city d.how far is it from city a to city d.in what direction must the airplane head to return directly to city a from city d?

    asked by anne
  42. algebra 1

    A store’s cost for a stereo was $27. Th e markup was 75%. A customer purchased it on sale at 40% off the marked up price. What was the purchase price of the stereo? Please help!

    asked by ben
  43. math

    could you please show me the steps to do this problem? 8 2/7-7 1/3

    asked by Carolyn
  44. english

    The Pied Piper of Hamelin ― Robert Browning "Then, like a musical adept, To blow the pipe his lips he wrinkled, And green and blue his sharp eyes twinkled, Like a candle-flame where salt is sprinkled; And ere three shrill notes the pipe uttered, You

    asked by 2phoneeeeee
  45. english

    Tlot-tlot; tlot-tlot! Had they heard it? The horse-hoofs ringing clear; Tlot-tlot, tlot-tlot, in the distance? Were they deaf that they did not hear? Down the ribbon of moonlight, over the brow of the hill, The highwayman came riding, Riding, riding! The

    asked by 2phoneeeeee
  46. Science Please help

    Some of the oldest rocks ever found have been estimated to be about 3.5 billion years old. Is it likely that these rocks were present when Earth was first formed? No, this rock is probably just a sedimentary rock that was formed by much younger igneous

    asked by Monkey55
  47. Organic Chemistry

    Cu++ forms a blue-green complex with tetraphenylporphin in a 1:1 ratio. Say you have 100 mL of a 2.0 x 10^-4 solution of the Tetraphenylporphin. Exactly what weight of CuCl2 must be added to the solution to insure complete complexation without any excess

    asked by Jessica
  48. chemistry

    Using the following thermochemical data, what is the change in enthalpy for the following reaction? 2H¿(g) + 2C(s) + O¿(g) d C¿HOH(l)? C2H5OH(l) + 2O2(g) d 2CO2(g) + 2H2O(l),  DH = -875 kJ C(s) + O¿(g) d CO¿(g),  DH = -394.51 kJ H2(g) + ½O2(g) d

    asked by caleb
  49. Pre-Algebra help PLZ!!

    Hassan deposited $7,500 into a bank account. At the end of 3 years, the account had earned $900 in simple interest. What rate of interest did the account earn per year?

    asked by DerpyPegasus33
  50. My Bro's B-Day

    Tomorrows my 4 yr old (going too 5 tomorrow) brother's B-day and I don't know what to give him. Ideas? He likes building and robots but I want something homemade cause I'm broke. PLZ HELP!

    asked by DerpyPegasus33
  51. Pre-Calc/Trig...

    Which of the following could be an example of a function with a domain (-oo,oo) and a range (-oo,2)? Check all that apply. A. y= -(3)^x+2 B. y= -(3)^x-2 C. y= -(0.25)^x+2 D/ y= -(0.25)^x-2

    asked by Anonymous
  52. English

    Which of the following lines from the poem best shows the speaker's distaste for the situation? A)Silence. Silence transmission of Pressurized good breeding? B)OR VERY DARK?" Button B. Button A. Stench. C)Pushed dumbfounded to beg simplification. D)Her

    asked by Andre
  53. criminal Justice

    •How do advocates of the crime control model view plea-bargaining? •How do advocates of the due process control model view plea-bargaining I can not find this information online. Please help

    asked by Patiance
  54. fuctions and statistics

    one foot is equivalent to approximately 0.3048 meters. if a building is 65-feet long, what is the length of the building in meters, to the nearest tenth?

    asked by stephanie
  55. physics

    Hahahahahahaha ha????

    asked by Anonymous
  56. Statistics

    An ice cream store offers 10 toppings. If no topping is used more than once, in how many different ways can a four topping ice cream dessert be formed?

    asked by Monica
  57. Statistics

    A card is selected at random from a standard deck of cards. Find the probability of randomly selecting a king given that an ace has already been selected.

    asked by Monica
  58. Math

    Jack says that once you have a common denominator you are ready to subtract two mixed numbers. What other step might be necessary before you can subtract? Give an example.

    asked by Jamie
  59. Sociology

    All of the following reasons cause a variance in divorce rates among segments of the population in the United States, except age of first marriage education race and ethnicity social class not sure

    asked by 2phoneeeeee
  60. Math

    When fully simplified, ignoring non-permissible values, 12x^12/4x^3 divided by x^8/24x^6? a)72x^3 b)1/72x^7 c)1/72x^3 d)72x^7

    asked by Alex
  61. Math

    Express the product, x^2 + 4x divided by 2x^2+13x+15 multiplied by x+5 divided by x^2 - 16 ? a)-1/2x+3 b)x/(2x-16)(x+4) c)(x^2+4x)(x+5) / (2x^2+13x+15)(x^2-16) d)x / (2x+3)(x-4)

    asked by Alex
  62. English

    I need help annotating an essay that I got. I need help finding rhetorical devices, ethos, pathos, and logos appeals. I also need help explaining why, forexample, a line or passage reflects an ethos appeal and so on. This is for "Concerning the Dangers

    asked by Emily
  63. Statistics

    Hello Can you help me It is reported that 72% of working women use computers at work , choose 4 working wonen at random . Find the probability that : A : all 4 use a computer at their work B : at least one does not use a computer at work Please help me

    asked by Rehab
  64. mechanics

    A roller of radius 400mm rolls without slip between two parallel plates moving in opposite direction with speed,upper plate=7m/s(¡ú),lower plate=4m/s(¡û). Determine (a) the location of instantaneous centre with respect to lower plate,(b)the location of

    asked by sneha
  65. mechanics (plz help..)

    A man walking on straight path at15km/h finds that the rain is falling at an angle of 45degree to the vertical.As the man increases his speed to 20km/h,he finds the rain now falling at 30degree with the vertical. What is the true velocity of the rain.

    asked by sneha
  66. Health 4th grade

    When choosing a snack it is important to select a food that contains a large amount of these essential nutrients in comparison to the caloric value of the food. A.vitamins/nutrients B.vitamins/minerals C.vitamins/proteins D.vitamins/vegetables My answer:A

    asked by Anonymous
  67. History

    Between 1850 and 1860 several events occurred in the U.S. that highlighted the struggle over slavery. Describe these events and state what finally led to secession of the South beginning in December of 1860.

    asked by molly
  68. law

    •What are the similarities and differences in the realities of plea-bargaining between the crime control model and the due process model

    asked by Mark
  69. geometry

    Points B, D, and F are midpoints of the sides of EC = 33 and DF = 20. Find AC. The diagram is not to scale. (1 point) A:40 B:33 C:10 D:66

    asked by Anonymous
  70. Algebra 2

    A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two

    asked by Jasmine
  71. Algebra 2

    A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. The authors of the study wanted to know if the two

    asked by Jasmine
  72. Algebra 2

    A study investigated the job satisfaction of teachers allowed to choose supplementary curriculum for their classes versus teachers who were assigned all curricular resources for use in their classes. On average, when surveyed regarding job satisfaction,

    asked by Jasmine
  73. Algebra 2

    A simple random sample of 90 is drawn from a normally distributed population, and the mean is found to be 138, with a standard deviation of 34. What is the 90% confidence interval for the population mean? Use the table below to help you answer the

    asked by Jasmine
  74. Algebra 2

    A textbook company states that the average time a student needs to take a quiz from its book is 30 minutes with a standard deviation of 3 minutes. A teacher using the book is not sure that this is correct for her classes and wants to check. She collects

    asked by Jasmine
  75. Algebra 2

    A simple random sample of 50 adults was surveyed, and it was found that the mean amount of time that they spend surfing the Internet per day is 54.2 minutes, with a standard deviation of 14.0 minutes. What is the 99% confidence interval for the number of

    asked by Jasmine
  76. Chemistry

    The rate constant for a second-order reaction is 0.54 M-1s-1. What is the half-life of this reaction if the initial concentration is 0.27 M

    asked by anonymous.
  77. science

    how many h2 can be produced by 9.2 gr with h2o

    asked by anxh
  78. English

    Rewrite the following sentences in order to correct the punctuation. In the morning Shelby ate a peanut butter sandwich and an apple she rode her bike to school. After running the half marathon; Amelia was too tired to walk her dog.

    asked by Rachel
  79. Analytical Chemistry

    Calculate the ppm of the sodium ions when 2.91 g of sodium triphosphate are added to 2.33 L of solution. I earnestly have no idea how to solve this...

    asked by Ryan
  80. crime control model

    •How do advocates of the crime control model view plea-bargaining?

    asked by joanna
  81. Calculus- Tangent Line

    What is the slope of the tangent line to the curve at the point (4, 0)? Okay, so I got 0.5, did I do this right?

    asked by Harry
  82. language arts

    which of the following passages from Johnny tremain is most useful in helping you determine what type of person mrs. lap ham is? A. "My!" said Mrs. Lapham, "that's the worse anything I had imagined. Now isn't that a shame!" B. When Mrs. Lapham came down to

    asked by Anonymous
  83. Physics

    A ball of mass m is attached to a spring with a spring constant k. The system is attached to a thin vertical axis as shown in Figure 4. In its equilibrium vertical position the spring length is L. The axis starts to rotate with a constant angular frequency

    asked by James
  84. math

    Jane had 16m of ribbon. She gave 3 2/7of it to Linda and 4 1/3 to Sarah. How much ribbon was left?

    asked by dana
  85. Math

    Brady bought a gift that cost 15.99. After a sales tax of 5%, how much did he spend on his gift?

    asked by Justin Cassard
  86. math

    The difference between two numbers is 7.

    asked by Jaleah
  87. L.Arts

    the trouble with television Robert MacNeil voices a strong opinion about television in a paragraph explain his opinion then tell whether you agree or disagree with him support your view with at least two pieces of evidence from MacNeil's essay or from your

    asked by Help
  88. Math

    Sally wants to put lights all around her windows. She has 15 windows all the same. Each one is 3 feet long and 2 feet wide. How many strands of lights will she need to buy if each strand covers 10 feet? How much will it cost her if each strand of lights

    asked by Linda
  89. AP Calc

    A spherical snowball is uniformly melting art of rate of pi/18 in^3/min. At what rate is its diameter decreasing when its surface area is 3 in^2?

    asked by Jeff
  90. math

    Amy has 17 employees on her staff. She gave 3 chocolate chip cookies and 2 peanut butter cookies to each employee. What is the total number of cookies she gave away?

    asked by Madio
  91. language arts

    which of the following passages from Johnny tremain identifies a key event in the plot? A. "I'll buy your unexpired time. I think between us we could make some fine things you and I." The boy flushed. To thin the great Paul Revere wanted him B His feet

    asked by Anonymous
  92. science

    In electromagnetic waves, frequency is inversely proportional to Fast Please. I do not understand this

    asked by Anonymous
  93. chemistry

    The total phosphate concentration in a blood sample is determined by spectrophotometry to be 3.0×10−3 M. The pH of the blood sample is 7.45, What are the concentrations of H2PO4− and HPO42- in the blood? Pka for the phosphate system is 7.198

    asked by India
  94. chemistry

    Suppose a gas sample occupies 14.9 L at STP. What is its volume at 400 K and 0.87 atm? which equation would you use for this?

    asked by adrian
  95. pol 2901

    In republicanism, the state is viewed as a (Points : 1)

    asked by Anonymous
  96. matha

    the minute hand of a clock is 9m long. the hour hand clock is 2/3 times longer than the minute clock. how much more distance will minute hand clock more than hour clock in 1 hour/

    asked by jas
  97. Math

    Trina has 90 tootsie rolls and 45 blow pops that she is making into goodie bags. Each bag will have the same number of tootsie rolls and blow pops. What is the greatest number of goodie bags Trina can make with no candy left over? How many tootsie rolls

    asked by Amy
  98. math

    Ms. Johnson's class is having a pizza party. If there are 14 students and 7 pizzas cut into 8 slices, what answer choice represents the fraction of one pizza that each student receives? A.) 1/3 B.) 1/4 C.) 1/2 D.) 1/8

    asked by annette
  99. botony

    Defind the animal cells?

    asked by zaheer
  100. Chemistry

    How much heat energy, in kilojoules, is required to convert 48.0g of ice at −18.0 ∘C to water at 25.0 ∘C ? Please show all steps. i don't know where to start

    asked by Anna
  101. math

    Emily spent 1/2 of her money at the store. Then she spent 1/2 of what was left at the bakery. next she spent 1/2 of what was left at the music store. She spent the remaining$6.00 at school. How much money did Emily start with?

    asked by nick
  102. maths

    the minute hand of a clock is 9cm long. the hour hand clock is 2/3 times longer than the minute clock. how much more distance will minute hand clock move than hour clock in 1 hour?

    asked by jas
  103. MY BRO'S B-DAY HELP!!!

    I need some homemade ideas to give him for a present. His B-Day is tomorrow so plz give me some ideas. I'm gonna give him a card but you know...maybe an extra something would be great. He gonna be 5.

    asked by DerpyPegasus33
  104. Math

    A piece of string is 3/4 meter long. How many pieces of string that are 1/20 meter long can Wyatt cut?

    asked by Amy
  105. MATH HELP! Complex Interest

    Huan deposited $850 into a collegesavings account earning 4.8% interestcompounded annually. He also deposited$850 into a second account earning 4.8%simple interest. He made no additionaldeposits. After 10 years, which account earnedmore interest? How much

    asked by DerpyPegasus33
  106. language arts

    which of the following statements most accurately describes Mr. Lapham and his daughter-in-law Mrs. Lapham? A. Mr. Lapham is kindly and pious; Mrs. Lapham is pragmatic and determined B. Mr. Lapham is concerned about money; Mrs. Lapham is concerned about

    asked by Anonymous
  107. Algebra please?

    This is my last test question :) How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation.

    asked by Jeff
  108. English

    In the book dragonwings why doesn't moon shadow attend public school? How is he being educated?

    asked by Jade
  109. English

    In the book dragonwings why does black dog beat up moon shadow? What does the fact that the boy is not angry at black dog suggest or tell you about him?

    asked by Jade
  110. Math

    How can you use decimal squares to represent the product 0 * 0.7?

    asked by Sophia
  111. English

    In the book dragonwings why does windrider break the rules and go after black dog? Why does the tiger genral cooperate with windrider?

    asked by Jade
  112. math

    1 3⁄4 pounds of fudge and split it between her 14 classmates. How much fudge did each person receive?

    asked by Tamiko
  113. chemistry

    Suppose a gas sample has a density of 3.68 g/L at STP. What is its density at 25 oC and 19.0 atm?

    asked by adrian
  114. Algebra

    when writing linear equations, how do you determine which form of a line to use? choose 1 set of points from the choices below. then, solve the problem and post your solution, showing your steps. write an equation in point-slope form for the line that

    asked by Faith
  115. Chemistry

    What are some cons of becoming a pharmacologist?

    asked by anonymous
  116. english

    Writers often make common errors by adding improper punctuation. Identify and explain the sentence structure error in the following sentence: Terrance has collected sand from all of the exotic islands he’s visited, his favorite sample is the green sand

    asked by clay
  117. English

    Writers often make common errors by omitting punctuation. Identify and explain the sentence structure error in the following sentence: Tabitha drove to school she took her math test she drove home in the afternoon.

    asked by anonymous
  118. English

    Writers often make common errors by writing the way they speak. Identify and explain the sentence structure error in the following sentence: Because Belinda wants to move to California.

    asked by anonymous
  119. Chemistry

    What is the address of the 11 th electron of magnesium? And how do you determine this?

    asked by Kelley
  120. Math

    There are 8 pencils in a package how many pencils are needed for 28 children if each child gets 4 pencils

    asked by Leaira
  121. Math

    Give two different combinations of transformations that would transform f(x)=5x+3 into g(x)=15x-12

    asked by Kayla
  122. science

    who discover neon

    asked by edu
  123. English

    My daughter has a worksheet due tomorrow and is stressing because she read the book Dragonwings and didn't get it at all and doesn't get the worksheet and i cant read it and help her,please help 1)Why doesn't Moon Shadow attend public school?How is he

    asked by Abigail
  124. Business Math

    Compute Brianna's estimated tax payment for the third quarter. She is self-employed and she expects to earn $84,400 this year. Her estimated income tax rate is 22%. For self-employed persons, social security tax is 12.4% of wages up to $106,800, and

    asked by Tammy
  125. Finance math

    Consider the project with the following expected cash flows: Year Cash flow 0 -$400,000 1 $100,000 2 $120,000 3 $850,000 •If the discount rate is 0%, what is the project's net present value? •If the discount rate is 2%, what is the project's net

    asked by Terri
  126. Social Studies

    What was the purpose of the Proclamation of 1763?

    asked by Emily Sarca
  127. Science

    What is a black dwarf, white dwarf, protostar, neutron star and black hole

    asked by Thi.
  128. Psychology

    Individuals who naturally exhibit low levels of brain arousal and nervous system reactivity are more likely to: A. Score high in measures of agreeableness B. Score low in measures of agreeableness. C. Score low in measures of sensation seeking D. Score

    asked by Macy
  129. Math

    What does Distributive Property means? Give an example!!

    asked by Genesis
  130. Math

    In 1980 the average price of a home in Brainerd County was $97,000. By 1986 the average price of a home was $109,000 Write a linear model for the price of a home, P, in Brainerd County as a function of the year, t. Let t=0 correspond to 1980

    asked by M
  131. Chemistry

    How many liters of stomach acid (pH = 4.000) will be neutralized by a 1.50 g tablet of "Bicar", a commercial tablet which is 50% flavored and 50% NaHCO3? Note that: NaHCO3(s) --> Na+(aq) + HCO3-(aq) and: H+(aq) + HCO3-(aq) --> H20(l) + CO2(g) So far I've

    asked by John
  132. math

    alan, gil, and deb's point in a video game was in the ratio 2:3:4.deb scored 114400 points. how many points did gill score? how many points did they score in all PLEASE HELP but can you make your answer so that I can understand I am in 6th grade but I am

    asked by emily
  133. Math

    If a large factory sells its new gadgets for $5 each it can sell 1050 per month and if it sells the same gadgets for $9 it will sell 900 per month. Assuming the relationship between price and sales is linear predict the monthly sales of gadgets to the

    asked by M
  134. Language arts help

    Which of the following statements most accurately refflects the political climate in Boston in 1773? A. Most people in Boston were Tories who remained loyal to England and believed the Whigs were needlessly stirring up trouble. B. The Whigs were a vocal

    asked by Callie
  135. math

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 157.8 pounds. What is the probability that a single,

    asked by libby
  136. Language arts help

    Which of the following sentences from the novel best describes the Whig point of view? A. ....we're better off to take anything from the Birtish Paliament.... and never protest. B. ....we American colonies are too weak to get on without England's help and

    asked by Callie
  137. math

    Manny makes dinner using 1 box of pasta and 1 jar of sauce. If pasta is sold in pckages of 6 boxes and sauce is sold in packages of 3 jars, what is the least number of dinners that Manny can make without any supplies left over?

    asked by danielle
  138. Math

    The price of a gallon of gasoline increased by 5 cents one week, decreased by 3 cents each of the next two weeks, and increased by 9 cents the fourth week. Find the average change in the price of gasolina for the 4 weeks.

    asked by Alice
  139. band

    I need to label all my music notes correctly for the guitar and be able to find those notes on the guitar.I also need to tune my guitar with out a tuner.

    asked by Rob
  140. chemistry

    The pressure of a gas sample in a rigid container is 810.0 mmHg at 22 oC. What is the pressure, in mmHg, at 50 oC? I have a rough idea on how to solve, but which equation do I use?

    asked by adrian
  141. government

    Is Lobbying ethical?

    asked by Reina Bonilla
  142. Math

    Use the formula or a calculator application to find the monthly payment on a home mortgage of $292.649 at 5.004% interest for 25 years.

    asked by Janet
  143. math

    which equation represents the constant rate of change to determine y kilograms for x pounds?

    asked by 123
  144. algebra

    The Pike basketball team held a raffle to earn money for a trip to an out of state basketball tournament. Tickest for the raffle were sold for either $5 or $2. The team sold a total of 500 tickets for a total of $1,450. How many $5 tickets and $2 tickets

    asked by Darius
  145. chemistry

    The enthalpy of formation of C2H5OH is -238.7 kJ/mol. What information does this reveal about the bonds in the molecule? A. Bond formation in C2H5OH from its elements only occurs in cold temperatures. B. Bond formation in C2H5OH from its elements does not

    asked by Morgan
  146. Pre-Algebra can you please help?!

    Lester deposited $400 into a savings account earning 4.5% simple interest, and $450 into an investment account earning 3.2% interest compounded annually. What was the total interest he earned in 3 years? A $986.00 B $89.06 C $9.60 D $98.60

    asked by DerpyPegasus33
  147. math

    The factors of a number include 2, 3, 4, 6, 8, 12, 16, 32, and 48. Which could be the number?

    asked by danielle
  148. chem

    Argon exists in three isotopic forms, 36Ar, 38Ar, and 40Ar. What is the relative rate of effusion of the fastest to slowest, ufast/uslow?

    asked by Anonymous
  149. language arts

    1. which of the following statements most accurately describes Mr. Lapham and his daughter in law Mrs. Lapham? A. Mr. Lapham is kindly and pious; Mr. Lapham is pragmatic and determined B. Mr. Lapham is concerned about money; Mrs. Lapham is concerned about

    asked by Anonymous
  150. Physics

    A player passes a 0.600-kg basketball down court for a fast break. The ball leaves the player's hands with a speed of 8.20m/s and slows down to 7.30m/s at its highest point.Ignoring air resistance, how high above the release point is the ball when it is at

    asked by mmm
  151. physics

    A golf ball rolled off the edge of a table that has a height of 1.25 m and lands 0.48 m away from the table. The golf ball took 0.505 s to hit the ground 0.48 m from the table. What was the horizontal velocity, to the nearest hundredth m/s, of the ball as

    asked by Anonymous
  152. math

    I am a number between 60 and a 100. My ones digit is 2 less than my tens digit. I am a prime number. What am I? Explain.

    asked by danielle
  153. Math

    Ok so my problem is -3(3x+15)-(10+x)=35 After doing most of the problem I ended up getting -10x=105. I need to have a whole number as an answer but I can't understand what to do.

    asked by Janey
  154. French

    Hello. I need a bit of help in my french homework. Its on the subject of converting a paragraph to passé compose. Can someone please help me? Here's the paragraph: I've tried( my work isn't included) but I just want to ensure that it is correct. Vendredi

    asked by anonymous
  155. MATH HELP ASAP!

    Randee invested $1000 for college in an account earning 5% simple interest. When she withdrew the investment, she had earned a total of $550 in interest. How long was the money invested? A 9 years B 10 years C 11 years D 12 years

    asked by DerpyPegasus33
  156. Social studies

    What is the acrostic poem for Bill of Rights?

    asked by Brandon
  157. Can you help me with this math problem? ASAP plz!

    Lester deposited $400 into a savings account earning 4.5% simple interest, and $450 into an investment account earning 3.2% interest compounded annually. What was the total interest he earned in 3 years? A $986.00 B $89.06 C $9.60 D $98.60

    asked by DerpyPegasus33
  158. physics

    An amusement park ride consists of a rotating circular platform 8.09 m in diameter from which 10 kg seats are suspended at the end of 2.19 m mass less chains. When the system rotates, the chains make an angle of 14.8 ◦ with the vertical. The acceleration

    asked by Anonymous
  159. Algebra 2

    a person throws a baseball into the air with an initial vertical velocity of 30 feet per second and then lets the ball hit the ground. The ball is released 5 feet above the ground. How long is the ball in the air?

    asked by Madison
  160. chemistry

    What is the entropy change associated with the chemical reaction that occurs when iron oxide is converted to its metal form? Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) A. Zero B. Positive C. Negative D. Cannot be determined I think the answer is b or c.

    asked by Morgan
  161. math

    A set is known to have 255 proper subsets. How many distinct elements does this set have?

    asked by trevor
  162. Lat math question for some days. Can y'all help?

    Huan deposited $850 into a college savings account earning 4.8% interest compounded annually. He also deposited $850 into a second account earning 4.8% simple interest. He made no additional deposits. After 10 years, which account earned more interest? How

    asked by DerpyPegasus33
  163. Trigonometry

    Graph the following functions .include two full periods .a)y=3cos(2x) and b)y=-4sin(4x) on same graph

    asked by Sal
  164. 7th grade math

    Can you check these? 1. A recipe for chocolate pudding calls for 1 ¼ cups of milk. The recipe makes 3 servings. How many cups of milk are needed to make 9 servings? Ans: 1.25/3 = x/9 3x = 9*1.25 3x = 11.25 x = 11.25/3 x = 3.75 or 3 3/4 cups of milk 2. Two

    asked by Alexis
  165. Geometry

    A marathon runner ran the first 4 miles in 27.8 minutes. If she continues running at this pace, how long will it take her to run the entire marathon of 26.2 miles?

    asked by Kimberly
  166. Math

    Consider the function y = 3x5 – 25x3 + 60x + 1. Find the critical points of this function. So I got 1 and 2 as the critical points..but I feel like I did something wrong, is this right?

    asked by Sarah
  167. Derivative Test

    Consider the function y = 3x5 – 25x3 + 60x + 1. Use the first or second derivative test to test the critical points. How many relative maxima did you find? I got 2 as the relative maxima, is this done correctly?

    asked by May
  168. 4th grade math

    can you convert 154 minutes to total hours in a week? I don't know how to convert

    asked by reid
  169. CAL

    Consider the function y = 3x5 – 25x3 + 60x + 1. Find the absolute maximum value of y on the interval [0, 3]. What do you get I got -322, but I'm not 100% on how to find the absolute maximum.. so is that right?

    asked by Kelly
  170. mathematics

    ABCD is a parallelogram.the bisectors of the angle and C meet the diagonal BD in P and Q respectively. Prove that triangleAPQ ~=triangleCOD.

    asked by taskeen
  171. Math

    The function f given by f(x) = x^3 + 12x – 24 is? Increasing for all x's? Cause that's what I think..

    asked by Robert
  172. Math

    A student borrowed $19,000 at an annual interest rate of 6.4%. Calculate the amount of interest due 3 months after the student has begin making payments

    asked by Bri
  173. Math

    Start a 4. Create a pattern that multiplies each number by 4 and then adds 3. Stop when you have 5 numbers. Can someone please help me out?

    asked by Anonymous
  174. Can you check my Math answer please?

    According to the first derivative test, a differentiable function must have a relative minimum between any two relative maxima. True.

    asked by Kennedy
  175. physics

    A train moving at a constant speed is passing a stationary observer on a platform. a flute player is playing a note with frequency of 940Hz. after the flute has passed, the observer hears the sound frequency of 915Hz. What is the speed of the train? The

    asked by John
  176. Physics HELP!

    A 50-g mass is attached to a spring and undergoes simple harmonic motion. Its maximum acceleration is 15m/s2 and its maximum speed is 3.5m/s . Determine the angular frequency. Determine the spring constant. Determine the amplitude of the motion. how do I

    asked by Jane
  177. chemistry

    How to prepare 250.0 mL of 0.076M NaOH?

    asked by Sara
  178. Abnormal Psychology

    I need help diagnosis this case for my abnormal psychology review. Mr. B is a 20-year-old male college student who was recently arrested for possession of marijuana, which was detected when he was stopped for un¬safe driving. He was charged with driving

    asked by Matt
  179. math

    Nine more than five times a number is that number increased by 45

    asked by kim
  180. algebra

    The Jaspers collect nickels, dimes, and quarters in a jar. When they count the change in the jar, there are twice as many nickels as there are quarters. If there is $15.30 in dimes and $74.80 in all, how many quarters are there. Please include an equation

    asked by adriana
  181. general chemistry

    Methanol has a ΔHvap = 35.3 kJ/mol CH3OH. Calculate the change in heat, q, when 50.0 g methanol condenses? Caution! Is q + or -?

    asked by Anonymous
  182. Science/Math

    If a student submerges a stopper with a volume of 6.1mL into a cylinder of thick syrup, what will happen to the syrup?

    asked by Katie
  183. general chemistry

    Copper crystallizes in a face-centered cubic unit cell with an edge length of 362 pm. What is the radius of a Cu atom in pm? What equation do you use?

    asked by Anonymous
  184. criminal justice

    •How do advocates of the crime control model view plea-bargaining? •How do advocates of the due process control model view plea-bargaining? •What are the similarities and differences in the realities of plea-bargaining between these two models

    asked by Dason
  185. History

    What was John Adams foreign policy?

    asked by M
  186. Introductory to Physical Science

    A student drops a stopper into 50.0mL of water and the level rises to to 56.1mL. If she submerges the same stopper into a cylinder of thick syrup, what will happen to the syrup? a.) it will rise 6.1mL b.) it will rise less than 6.1mL c.) it will rise

    asked by Anthony
  187. physics

    A train moving at a constant speed is passing a stationary observer on a platform. a flute player is playing a note with frequency of 940Hz. after the flute has passed, the observer hears the sound frequency of 915Hz. What is the speed of the train? The

    asked by John
  188. Math

    Courtney is traveling 8 mph to a location and 6 mph back. trip is 7 hours in total. what time did she spend at each speed???

    asked by Shelly
  189. Chemistry

    1.) Can you explain to me how Faraday's Constant works in electrolytic cells? (We did a lab experiment on copper wires and sulfuric acid, collecting H2 gas.) I'm not sure how to answer the question. 2.) Does copper conduct more electricity than platinum?

    asked by Billy
  190. Calculus angle of elevation

    A man is walking towards a wall at 3 ft/sec while looking at a picture on the wall, at a height of 5 feet from the floor. How is the angle of observation changing when the man is 8 feet away from the screen.

    asked by Jane
  191. help asap

    7. Verify that parallelogram ABCD with vertices A(–5, –1), B(–9, 6), C(–1, 5), and D(3, –2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals. (3 points)

    asked by kat
  192. Math

    what two numbers add to -19 and multiply to -42 (factoring?!) 14c^2-19c-3

    asked by Anonymous
  193. general chemistry

    Copper crystallizes in a face-centered cubic unit cell with an edge length of 362 pm. What is the radius of a Cu atom in pm?

    asked by Anonymous
  194. Physics

    Musicians can use beats to tune their instruments. One flute is properly tuned and plays the musical note A at exactly 440Hz. A second player sounds the same note and hears that her flute is slightly "flat" (that is, at too low of a frequency). Playing at

    asked by Carly
  195. Math

    eight members of a club will make a paper chain. the chain is 4 feet long. each member will make an equal part. how much of the chain , in feet, will each member make?

    asked by Angie
  196. algebra 1

    A store’s cost for a stereo was $27. Th e markup was 75%. A customer purchased it on sale at 40% off the marked up price. What was the purchase price of the stereo? Please help!

    asked by ben
  197. calculus

    The position, in feet, of a target is given by s(t)=250-3t+9t^2+2t^3, where t is the time in seconds. The origin of coordinates is at the point where an observer stands, and the positive direction of movement is that one pointing EAST from the origin. What

    asked by Jane
  198. physics

    an ice skater starts her spin with her arms stretched straight out. She then pulls her armsin close to her body. Assume her moment of inertia when her arms are stretched out is 3.0 kg-m sqaured and it is 2.0 kg-m squared when she pulls them in tight. If

    asked by Billy Bundles
  199. language arts

    which of the following statements from Johnny Tremain most accurately describes Mr. Latham and his daughter-in law Mrs. Latham? A. Mr. Lapham is kindly and pious; Mrs. Lapham is pragmatic and determined B. Mr. Laphan is concerned about money; Mrs. Latham

    asked by Anonymous
  200. chemistry

    A .523g sample of a mix of Na2co3 and Nahco3, is titrated with .1 HCl requiring 17 ml to reach the phenolphthalein end point and a total of 43.8 ml to reach the methyl orange end point. What is the percent of each of na2co3 and nahco3 in the mixture?

    asked by Austin
  201. physics

    An archer puts a 0.39 kg arrow to the bowstring. An average force of 196.3 N is exerted to draw the string back 1.28 m. The acceleration of gravity is 9.8 m/s 2 . Assuming no frictional loss, with what speed does the arrow leave the bow? Answer in units of

    asked by NeedHelp
  202. Math

    A ship leaves England for the Strait of Magellan. It is traveling at a constant speed of eight knots and takes 41 days to reach the Strait of Magellan. The ship reaches the Strait of Magellan at the exact time of day that it left England. How far did the

    asked by ana
  203. history

    which of the following would not be considered an institution? A families B sports clubs C organized religion D civilizations is it d?

    asked by Anonymous
  204. physics

    A 1543.1 kg car is traveling at 25.1 m/s when the driver takes his foot off the gas pedal. It takes 5.7 s for the car to slow down to 20 m/s. How large is the net force slowing the car? Answer in units of N

    asked by kenny
  205. math

    How do you factor 40y^2+y-6? Explain the steps please? I am very confused!

    asked by Anonymous
  206. Physics

    Sir can you help me to solve this question on Physics Two persons p and q are standing 100m away from a high wall and separated by distance d. P claps and q hears two sound (direct and echo) with a time difference of 0.2sec. Find the distance between p and

    asked by Yogesh