Questions Asked on
April 12, 2016

  1. PHYSICS Momentum!! Collision HELP

    A ball A of mass .202 kg is moving at a velocity of 2.0 m/s toward a ball B that is at rest. (a) Calculate the initial momentum for Ball A and Ball B. (b) Calculate initial Kinetic energy for Ball A and Ball B. My doubt since its asking for initial moment

    asked by Pam
  2. chemistry

    Calculate the concentrations of all species present in a 0.100 M solution of weak polyprotic acid H3PO4. Ka1=7.5 x 10 ^-3, ka2 = 6.2 x 10 ^-8, Ka3= 3.6 x 10^-13 How the heck do I do this

    asked by Kate
  3. math

    Find the future value of an annuity if you invest $200 quarterly for 20 years at 5% interest compounded quarterly.

    asked by Cheryl
  4. English

    If you were a young Lucius, what would you think about the events you’ve observed? How would you feel about Brutus?

    asked by Shanina
  5. Algebra

    Solve the following quadratic equation by completing the square. Simplify the solutions and rationalize denominators, if necessary. x2 + 6x − 17 = 0

    asked by diane
  6. Physics

    A stone is short-cut from a catapult with an initial velocity of 20m/s atan elevation of 40.calculate the velocity of nove height

    asked by Raphael
  7. Algebra

    I do not understand this homework at all. Any help or elaboration would be greatly appreciated. Thanks. 100 juniors at Southwest High took the SAT test. The scores were distributed normally with a mean of 22 and a standard deviation of 3. Label the mean

    asked by Kesha
  8. math

    Alvin can go upstream at a rate of 6 miles per hour and downstream at a rate of 12 miles per hour. One day while Alvin was on the river, he received a call telling him he needs to turn around and come home. So he turned around and went back to his starting

    asked by wendy
  9. word problems

    The revenue R from selling x number of phone widgets is given by R = 32 x R=32x, and the cost C of producing those widgets is given by C = 22 x + 1830 C=22x+1830. Find the number of widgets it requires to break even.

    asked by anahi
  10. engineering economics

    A) A company has issued 10-year bonds, with a face value of $1,000,000 in $1000 units. Interest at 8% is paid quarterly. If an investor desires to earn 12% nominal interest (compounded quarterly) on $10000 worth of these bonds, what would the purchase

    asked by lolong
  11. Math

    Is the LCD of x/2x-4 and 5x/12x-24 not 24(x-2)? The original question is x/2x-4 + 5x/12x-24 and I factored the denominators first so that I could find the LCD. And I got: x/2(x-2) + 5x/12(x-2) After that, I multiplied up to the LCD and got: x/2(x-2) +

    asked by Emily J
  12. Algebra

    The sum of a positive number and 5 is 806 times the reciprocal of the number. Find the number.

    asked by diane
  13. science

    what will be the speed of a 5oo kilogram mass satellite if we apply 100N force on it after each second till 10 hours and the current velocity of this satellite is 16,800 miles per hour?

    asked by vikram
  14. science

    Charcoal from an ancient campfire has a ratio of 14C to 12C that is one- fourth that of new wood. About how old is the charcoal? The half- life of 14C is 5730 years.

    asked by Terrance
  15. english

    Traditional African marriage is an advantage for man only not women

    asked by Anonymous
  16. Algebra

    Solve the following quadratic equation by completing the square. Simplify the solutions and rationalize denominators, if necessary. x2 − 9x + 14 = 0

    asked by diane
  17. Math

    A chord 30cm long is 20cm from the centre of a circle calculate the length of a chord which is 24cm from the centre.

    asked by Agape
  18. Algebra

    An arrow is shot vertically upward from a platform 48 ft high at a rate of 233 ft per sec. When will the arrow hit the ground? Use the formula: h = −16t2 + v0t + h0.

    asked by diane
  19. math

    Find a negative real number such that the square of the sum of the number and 3 is equal to 25

    asked by diane
  20. math

    Aryam has 6 coins that have a total value of 56c. list the coins.

    asked by firza
  21. Linear Algebra

    W= [ a , a+b ] (2x2 matrix) [a-b , b ] a, b are element of R Show that W is a Subspace of M22?

    asked by Wong
  22. Math

    < WXY=113.Use what you know about angles in a parallelogram to find the measure of the other angels

    asked by Miracle
  23. Algebra

    Find a positive real number such that its square is equal to 4 times the number, increased by 60.

    asked by Anonymous
  24. Chemistry

    Calculate the number of moles Fe2O3 in 2.37x10^21 atoms of Fe2O3?

    asked by Josh
  25. Chemistry

    If 100ml of 1M NaOH solution is added to water make a solution of 1.5L, calculate its normality

    asked by Avinash
  26. Math

    Write a 6 digit whose hundred thousands digit is the greatest digit, the ones digit is the least digits and the rest of the digits are zero. How to write in figure

    asked by Rowena
  27. Chemistry

    A 40.0 g sample of zinc is allowed to react with excess hydrochloric acid. How many liters of dry hydrogen gas are produced if the gas is collected over water at 23.0 degrees celsius and 1.234 atm of pressure? (Vapor pressure of water at 23.0 degrees

    asked by Me
  28. Algebra

    One crew can frame a single story house in 7 days, while a second crew can do it in 5 days. how long will it take to frame a single house if the second crew arrived 2 days after the first. Im having problems setting it up with the 2 days after the first

    asked by Leonard
  29. Math Help!

    Multiply the following polynomials 1. 2a(a^2+4^a) A. 2a^2+6a^2 B. 2a^3+8a^2 C. 2a+6a D. 2a^3+6a^2 2. (3y)(3y-2) A. 9y^2-6 B. 9y^2+5y C. 9y^2+1 D. 9y^2-6y Not sure? I'm not asking anyone to give me the answer but I don't know how to do this.

    asked by Amber
  30. Calculus I

    The volume of a sphere is changing at a rate of 8pi cm/sec. What is the rate of change of its surface area when the radius is 1? (the volume of a sphere is given by V=4/3pir^3 and its surface area, by A=4pi r ^2).

    asked by Brianna
  31. social studies { somebody please help me please

    3. What South Carolina operation was similar to the Tennessee Valley Authority? a. Broad Tyger Project** b. Edisto Ashley Project c. Saluda Reedy Project d. Santee Cooper Project 4. Which of the following was NOT a result of the New Deal a. The government

    asked by hellooo kitty
  32. College Algebra

    The rodent population in a city is currently estimated at 30,000 and is growing according to the Malthusian model. If it is expected to double every 9 years, when will the population reach one million? (Round your answer to one decimal place.)

    asked by Madison
  33. Math Help!

    Simplify the expression 7^9/7^3 A. 7^3 B. 7^6 C. 7^12 D. 1^6 Help?

    asked by Amber
  34. Physics

    A child is pushed down a slide from a height of 2.5m with a speed of 7m/s if his mass is 25kg and reaches the ground a speed of 5m/s calculate the coefficient of kinetic friction. Theta = 55 degrees

    asked by Hajju Farouk
  35. math

    the length of a rectangle is 3 inches greater than the width. write the polynomials that represent the area of the rectangle

    asked by kemi
  36. Math

    2.)Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 4 bulbs. In the second year, it produced 8 bulbs, and in the third year, it produced 16 bulbs. If this pattern

    asked by #FreeGucci
  37. math

    The length of a rectangle is 3 inches greater than the width. Write the polynomials that represent the area of the rectangle a= lxw l=w+3 therefore area= (w+3)(W)

    asked by kemi
  38. Math

    4^4x4^6 A.4^2 B.4^6 C.4^10 D.4^24 Help?

    asked by Amber
  39. Health

    The following is a health benefit of a nicotine substitute: it is cheaper than regular cigarettes so you can still get the benefit of nicotine at a lower cost. true false** I have no clue. can someone please help me?

    asked by Sally
  40. physics

    If you launch a marble out of a launcher on a table with a given angle, and you know that range( distance it travelled) and time travelled ( if needed). The only force acting upon is gravity. How would you find the initial speed or velocity of the

    asked by anon
  41. Trigonometry

    Water is dripping out of the bottom of a conical container. The cone has a diameter of 8 inches and a height of 8 inches. a) When the depth of the water is 8 inches, what is the radius of the water? b) Write a function for the volume of water left in the

    asked by Bailey
  42. Social Studies

    Which of the following industries is not a current leading contributor to the economy of mordern Georgia? agriculture manufacturing tourism retail A?

    asked by Amber
  43. physics

    The period of an ocean wave is 20 seconds. Calculate the wave's frequency.

    asked by Anonymous
  44. Chemistry

    What is the delta G naught for the cell in question 1 at 298 K? Question 1: Which is spontaneous, the oxidation of copper to Cu2+ or the reduction of Cu2+ to Cu? Work: OX: Cu --> Cu2+ + 2e- RE: 2e- + Cu2+ --> Cu Overall: Cu + Cu2+ --> Cu + Cu2+ Delta G

    asked by Kait
  45. Social Studies

    Which of the following are educational improvements made in Georgia after World War II? Link please.

    asked by Amber
  46. English

    English is a language of opportunity why bother teaching indigenous languages?

    asked by sbahle mthembu
  47. life orientation

    Identify three human rights violations or discrimination and explain in an introductory paragraph why you choose the specific human rights violation or discrimination

    asked by mudau rofhiwa
  48. Math

    9.)Which hill described in the table is the steepest? Explain.' (Table) Street Horizontal Distance (ft) Vertical Rise Dixie Hill 80 40 Bell Hill 80 20 Liberty Hill 80 60 A.)Bell Hill; it rises 1 foot for every 4 feet of horizontal travel. B.)Dixie Hill; it

    asked by #FreeGucci
  49. Physics

    A metal block of mass 1.840 kg is hanging from a string. The tension in the string is 9.972 N. The block is submerged in a beaker of fluid and is stationary. What is the magnitude and direction of the buoyant force acting on the block? Consider making a

    asked by Rachel
  50. Physics

    The Equation of Continuity states that the mass flow rate has the same value at every position along a tube that has a single entry and a single exit point for fluid flow. Basically it boils down to the idea that the fluid doesn’t magically disappear or

    asked by Rachel
  51. Math Check my Answers please ?

    1.)if an object is dropped from a height of 144 ft the function h(t)=-16t^2+144 gives the height of the object after t seconds. when will the object hit the ground? a.)1.5 seconds b.)3 seconds *** c.) 6 seconds d.)9 seconds 2.) the area of a play ground is

    asked by Hannah
  52. math

    sarah owns a small business there was a loss of 19 dollars on thursday and a loss of 12 dollars on friday on saturday there was a profit of 15 dollars find the total profit or loss of the four days A- $35 loss B- $ 19 profit C- $ 27 loss D- $ 57 loss my

    asked by Megan
  53. U.S. History (Check)(Reed)

    Write a paragraph on the similarities and differences of isolationism and internationalism. A: Isolationism and internationalism are distinctly different from each other. Isolationism is the policy of avoiding involvement in world affairs, whereas

    asked by Victoria
  54. life orientation

    make six suggestions on how to combat the violations of human rights and indicate any organization you have come about in your research and indicate how they combat the human rights violations

    asked by Gudani Paris
  55. Social Studies

    7. Select one movement from the Progressive Era. Describe the movement and its impact reform on South Carolina. Provide details and examples that support how this movement changed South Carolina. I chose the civil right movement I just don't know how to

    asked by Alexis
  56. math

    what is the sum of the digits of the largest even 3 digit number which is not changed when its units and hundreds digit are interchanged

    asked by prarthna
  57. life orientation

    evaluate the physical, social and economic consequences of this crime to the offender.How did this corruption and fraud impact negatively in the country; for example service delivery, tax, expense of trial. ......1 to 2 pages pls I need ur help

    asked by Gudani Paris
  58. life orientation

    design a newspaper article to warn people against engaging in fraud and corruption. make sure it looks real and impressive

    asked by Gudani Paris
  59. life orientation

    express your emotion on how bad fraud and corruption are and how they must be avoided

    asked by Gudani Paris
  60. english

    What best completes this statement about "London, 1802"? In Lines 9 and 10 Wordsworth uses _____. personification metaphor simile allusion line9 Thy soul was like a star, and dwelt apart; line10 Thou hadst a voice whose sound was like the Sea:

    asked by sarah
  61. Basic math

    a doctor order a dosaga of 5ml of medicine every 4 hours for 14 days how many fluid ounces of medicine should be purchase?

    asked by w00pz
  62. MathTim has a picture frame that is 30 centimeters

    Tim has a picture frame that is 30 centimeters long and 24 centimeters wide he wants to make a picture frame that is similar in shape but is 18 centimeters long how wide should the second picture frame be

    asked by Tonya
  63. SCHistory

    What action did Governor Richard Manning NOT take to prepare South Carolina for war? A. He secured military training facilities. B. He encouraged residents to purchase Liberty Bonds. C. He improved transportation and communication facilities.****** D. He

    asked by shirley
  64. Social Studies

    1. What was the effect of World War I on South Carolina? A. The state economy shrunk significantly. B. Citizens used more resources, such as meat and fuel, than before the war. C. Factory production slowed and trade decreased with other countries. D. Some

    asked by SpitFireRedHead
  65. science

    Which of the following best describes the relationship between economic growth and energy use?

    asked by trenehsia
  66. Algebra, math

    What happened when 1000 baseballs fell from an airplane?

    asked by Maddie
  67. Chemistry

    A student completes a titration of an unknown diprotic acid. In this experiment, 0.79 g of the acid is dissolved in 250.0 mL of water. It requires 13.48 mL of 1.0 M NaOH to reach the second equivalence point. What is the molar mass of the acid?

    asked by Nevaeh
  68. Chemistry

    When titrating 50.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the 1st equivalence point? I am confused... What H2A problem? Chemistry-Dr.Bob222 - DrBob222, Tuesday, April 12, 2016 at 1:49am Refer to the H2A

    asked by Nevaeh
  69. CONSUMER MATH

    The owner of Campus Cafe plans to open a second location on a satellite campus in 5yrs. She buys an annuity that pays 10.5% interest compounded annually A. If the payment is $4000 a year, find the future value of the annuity in 5yrs. B. How much more

    asked by Petra
  70. Art

    Which of the following is most likely the reason for a city to reject an artist's proposal to create a religious mural on the side of the city library? A. the wall is too large for the subject matter. B. The location is inappropriate for the subject

    asked by nightcore
  71. Chemistry

    What is the pH of a 0.052 Mole solution of HCl?

    asked by Lucy
  72. 11th grade physics

    How do we know which plate has an excess of electrons?

    asked by angy
  73. 11th grade physics

    A parallel condenser of 0.8F is to be constructed using sheets of tin foil each 30cm.25cm and separated by a paraffin waxed paper 0.015cm thick of dielectric constant Find how many sheets of metals are required?

    asked by angy
  74. math polynomials

    (3x + 4)(x – 2) how do I solve this?

    asked by Raul Resendiz
  75. physics

    what will be the speed of a 500 kilogram moving satellite if we apply100N force on it after each second till 10 hours and current velocity of this satellite is 16,800 miles per hour?

    asked by vikram
  76. Maths

    State the period in radians for each of the following functions A) y=cosx B) y=sin2x C) y=tan3x D) y=cos(x/2) Please help Thankyou

    asked by Anonymous
  77. PHYSICS

    A 2000kg elevator is attached to a 1800kg counterweight. What power must the motor supply to raise the elevator at 0.4m/s?

    asked by a
  78. Pre Algebra

    1. Which of the following is an example of a dependent event? (1 point) flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream choosing a cookie at random, eating it, and then choosing another at random 2. Which of

    asked by Summer
  79. Maths

    Solve the following equations for 0 < x < 2pi A) sin^2x=2sinxcosx B) 3tanx=cosx Please help Thankyou

    asked by Anonymous
  80. Science

    The speed of a bycyle reduce from 20 m/s to 4 m/s after travelling 80m .calculate

    asked by Prabhat
  81. health

    if i post my answer wil anyone help?

    asked by Sparkles_01
  82. Math

    Sheryl gets paid time and a half for working overtime at her job. Last week she worked 47 hours and her paycheck was $375.78. What is her normal hourly rate? Please help with figuring what formula I need to get the answer. Thanks

    asked by Wendy
  83. Physics

    A pendulum clock can be approximated as a simple pendulum of length 1.03 m and keeps accurate time at a location where g = 9.82 m/s2. In a location where g = 9.77 m/s2, what must be the new length of the pendulum, such that the clock continues to keep

    asked by Emily
  84. Maths (Proof)

    An octagon is formed by joining the points (7,0), (5,5), (0,7), (-5,5), (-7,0), (-5,-5), (0,-7), (5,-5) and (7,0). The octagon is regular. I have used proof by exhaustion and got that all sides are square root of 29. Then sketched it, and all sides were

    asked by India
  85. PLS HELP MEH ~OREO_CHAN

    why is it illegal to download music from many p2p networks

    asked by Xxoreo_~chan_xX
  86. Health Plz help THX!!

    Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food

    asked by Sparkles_01
  87. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked by vicky
  88. math

    f(x) = -16x2 + 24x + 16 Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points) Part B: Is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show

    asked by Ezikiel
  89. math mrs sue please help or any one

    I'm in connections and this is a quiz the value of the dependent variable in a function is always blank the value o the independent variable a greater than b dependent on c equal to d less than a science class planted a tree in the school court yard that

    asked by josiah
  90. algebra

    A local salesman receives a base salary of $900 monthly. He also receives a commission of 7% on all sales over $1000. How much would he have to sell in a month if he needed to have a monthly income of $2900?

    asked by Wendy
  91. check my answers please

    1.)order the group of quadratic fractions from widest to narrowest graph. y=3x^2;y=5x^2;y=7x^2 a.)y=3x^2;y=5x^2;y=7x^2 b.)y=7x^2;y=5x^2;y=3x^2 c.)y=3x^2;y=7x^2;y=5x^2*** d.)y=2x^2;y=7x^2;y=3x^2 2.)the area of a play ground is 234yd^2. the width of the

    asked by Hannah
  92. maTH

    The owner of Campus Cafe plans to open a second location on a satellite campus in 5yrs. She buys an annuity that pays 10.5% interest compounded annually A. If the payment is $4000 a year, find the future value of the annuity in 5yrs. B. How much more

    asked by plz help asap
  93. HEALTH PLZ HELP MEEEEEEEEEEEE ASAPPPPPPPP

    Explain what would happen if your epiglottis stopped working properly. A. you would have to go to dialysis to get your blood filtered everyday B. you would have to use an inhaler when the pollen or dust repeatedly bothered you C. you would choke on food

    asked by Sparkles_01
  94. Social Studies (please give me websites with info)

    7. Short Answer Select one reform movement from the Progressive Era. Describe the movement and its impact on South Carolina. Provide details and examples that support how this movement changed South Carolina.

    asked by SpitFireRedHead
  95. Pre calculus

    In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by 2 cables.The distance from the base of the antenna to the down point DOWN hill is 95 feet. Ignore the amount

    asked by Bimo
  96. Pre calculus

    A 100 foot tall antenna sits part way up a hill. The hill makes an angle to 12 degrees with the horizontal. In other words, if you were going to walk up the hill, you would walk at an angle of 12 degrees. To keep the antenna stable, it must be anchored by

    asked by Bimo
  97. Physics

    A spring loaded ballistic pendulum gun requires an increasing force to load. When loading a ball of mass 0.054 kg, the spring is compressed 7.00 cm, the gun is fully loaded, and the force required is 70.0 N. a) Calculate the work required to load the gun.

    asked by Emily
  98. algebra. someone please explain to me please!

    Alvin can go upstream at a rate of 6 miles per hour and downstream at a rate of 12 miles per hour. One day while Alvin was on the river, he received a call telling him he needs to turn around and come home. So he turned around and went back to his starting

    asked by Anahi
  99. PLS HELP MEH ~OREO_CHAN

    Based on the information above, which of the following statements would most likely be a belief shared by both Luther and Calvin?

    asked by Xxoreo_~chan_xX
  100. Math

    A bag contains 12 candies of which are blue . Two candies are chosen from the bag without replacement. What is the probability 1) both are blue 2) atleast one is blue

    asked by Shylea
  101. PLZ HELP ME MR.REED!! I NEED IT ASAP!!

    The development of England as a nation-state occurred because of increasing

    asked by Xxoreo_~chan_xX
  102. Math

    A bag contains 12 candies of which 3 are blue . Two candies are chosen from the bag without replacement. What is the probability ° both are blue? ° at least one is blue?

    asked by Shylea
  103. physics

    An air condenser has an area of 100 cm^2 the plates being 4mm apart. It is connected in series with another condenser having plate area of 20cm^2 plates being separated by dielectric 0.1mm thick with E=2.5. If the potential difference across an condenser

    asked by vicky
  104. Mathematics

    1. Which of the following is the correct definition of minerals? (1 point) a naturally occurring, inorganic solid that has a crystal shape and a definite chemical composition a naturally occurring, inorganic solid that forms through crystallization of

    asked by Queen/Halle
  105. science

    Which of the following is true? Choose all that apply. a. When molecular kinetic energy transferred to a substance, the motion of the molecules in the substance increases. b. When molecular kinetic energy is transferred away from a substance, the

    asked by jai
  106. science

    Which of the following substances has the greater heat capacity? a. 0.02 g of aluminum b. 2.00 g of aluminum c. 20.0 g of aluminum d. 200 g of aluminum*** please correct me if im wrong

    asked by jai
  107. Physics Help

    A falling 50-kg skydiver experiences an upward acceleration of 6.2 m/s2 when she opens her parachute? Show (by calculation) how much drag force is produced by the parachute? How would I calculate this? F(net) = F(drag) - F(gravity) F(drag) = F(net) +

    asked by Alea
  108. physics

    A mass oscillate with SHM of amplitude A and period T y = A cos (2πt/T). The kinetic energy of the mass is equal with twice the potential energy of the spring at :

    asked by JuliePham
  109. English- Ms.sue Helllppppppp

    How are the poems of Lear and Nash alike? A. Both follow the same rhyme scheme each time. B. Both always focus on animals. C. Both occasionally contain made-up words. D. Both have varied lengths. I think D

    asked by Nausicca
  110. geography

    a person could be fined up to 1000 dollars or be imprisoned for breaking the law stated in the _________.

    asked by Kenny
  111. Math

    A triangle has sides 8 cm and 5 cm and an angle of 90 degrees between them.Calculate the smallest angle of the triangle

    asked by Caitlyn
  112. Math

    What is 976 2times as many as the. Number

    asked by Janariana
  113. Liberal Arts

    A girl has 7 skirts, 5 blouses, and 6 pairs of shoes. How many different skirt-blouse-shoe outfits can she wear? (Assume that each item matches all the others, so she is willing to wear any combination.)

    asked by Khali
  114. math

    Which of the following is not one of the three ways to express a ratio? A.3/4, b. 3:4, c.3 of 4, d.3 to 4

    asked by renee
  115. History

    Did the Punic wars help Rome expand or just Roman trade or both? Please help...

    asked by Alexander
  116. History

    as a result of the punic wars, rome's navy became? can someone give me something besides a wikipedia because I already read those

    asked by Alexander
  117. Science

    mount twin peaks located in northern Vancouver Island erupted three million years ago and it has not erupted since then. Mouth twin Peaks is most liekly ? a) dormant •• b) active c) extinct d) stationary Correct me

    asked by Queen/Halle
  118. Science

    of the following illustrates conduction as a mode of heat transfer 1 point a microwave oven produces electromagnetic waves that transfer to the food in the form of head leaving a metal spoon in a bowl of hot soup will make the spoon at a well •• pasta

    asked by Queen/Halle
  119. accounting

    journalize the earning of services $53,000 on account and then additional $45,000 in cash

    asked by dayo
  120. english

    What is needed before or after the date listed below, a dash or a parentheses or is it correct? I think parentheses because it is loosely related to the sentence? During the Civil War 1861-1865, however, Barton performed another important national service.

    asked by kelley
  121. Science

    locate the epicenter of an earthquake a seismologists must determine all of the following except ? a) the difference between arrival time of P and S waves b) seismographic locations data from the seismograph locations c) the distance from the epicenter to

    asked by Queen/Halle
  122. Science

    What kind of magma produces a quiet volcanic eruption? A. Magma that is rich in Silica B. Magma that is Fluid C. Magma that is low in Iron D. Magma that is low in Silica•• Correct me

    asked by Queen/Halle
  123. Science

    How does subduction change the ocean floor? a) subduction cause magma to accumulate on the ocean floor b) subduction causes oceanic crust to break into pieces •• c) subduction causes the ocean floor to sink into deep-ocean trenches d) subduction causes

    asked by Queen/Halle
  124. Maths Physocs

    J and K are cycling together. K is riding a bike with a wheel radius of 35cm, crank wheel radius 11cm and chain wheel radius 4cm. She is pedalling at 60 rpm. How fast is she going? -->What is the significance of giving 3 different types of radius? --> know

    asked by John
  125. Algebra 1

    A firework is launched from a cliff overlooking the ocean. The elevation of the firework shell, in feet above sea level, t seconds after launch is given by the expression -16t^2+157t+63. How high is the top of the cliff, in feet above sea level. We just

    asked by Zack
  126. Science 8th

    How is a parallel circuit different from a series circuit? A: A parallel circuit only has one path for the circuit to take. B: A parallel circuit has more than one path for the circuit to take. C: A parallel circuit has a broken path for the circuit to

    asked by Lady Phantomhive
  127. science

    Which of the following is true? Choose all that apply. a. When molecular kinetic energy transferred to a substance, the motion of the molecules in the substance increases. b. When molecular kinetic energy is transferred away from a substance, the

    asked by jai
  128. finance

    Find the future value of an annuity when payment is $4000.00 annually, interest is 0.5% compounded annually and he term is 5 years.

    asked by Anonymous
  129. Algebra

    1.A student is 6 times younger than her teacher.Three years ago the product of their ages was 36.Find their present ages .

    asked by Ropa Huchu
  130. science

    Which of the following substances has the greater heat capacity? a. 0.02 g of aluminum b. 2.00 g of aluminum c. 20.0 g of aluminum d. 200 g of aluminum*** please correct me if im wrong

    asked by jai
  131. Algebra

    Zandile is 4 years older than Thoko.Four years ago the product of their ages was 165.find their present ages

    asked by Ropa Huchu
  132. Chemistry

    Calculate the pH of 0.250 L of a 0.65 M formic acid (HCO2H) - 0.10 M sodium formate (HCO2Na) buffer before (on your own) and after the addition of (a) 0.010 mol of NaOH (on your own) and (b) 0.010 mol of HCl (in the blank). Assume that the volume remains

    asked by Tyler
  133. Algebra

    Two square tiles have a total surface area of 40cm2.one tile is 4cm longer each way than the other.find the dimensions of the two tiles

    asked by Ropa Huchu
  134. Math

    The teacher said that 1/3 of her class was absent. If there are 24 students in her class, how many were absent?

    asked by Doyle
  135. Chem

    How do I calculate the heat released by 1 mole MgO Given: 0.5 g of MgO Heat gained by acid is 1337.6 kJ I calculated the moles for MgO which I got 0.0125 I'm not sure if I'm on the right track...

    asked by Rose
  136. Algebra

    The length of a room is 4 times longer than it's width.its area is 36m2.Find the dimensions of the room .

    asked by Ropa Huchu
  137. English

    Should traditional healers be allowed to perform and prescribe medicine in hospitals and clinics?

    asked by Kholiswa
  138. math

    Which strategies can be used to solve this problem? Kathleen invited 28 people to her party. She plans to seat 8 people at the dining room table. She will put the rest at round tables with 4 people at each table. What is the fewest number of round tables

    asked by diego
  139. Math question help!!

    The teacher said that 1/3 of her class was absent. If there are 24 students in her class, how many were absent?

    asked by Doyle
  140. social studies

    For what main purpose did European rulers build empires?

    asked by louie
  141. chemistry

    calculate the PH at the 60ml of .200M aniline (kb=3.2x10^-6) with .200M HNO3 solution before acid is added after 0,19,70 ml of HNO3

    asked by Jade
  142. Math&#128580;

    Christie rode 24 blocks in one hour. How many blocks could she ride in 2 1/4 hours?

    asked by Tyra
  143. Math

    A farmer needs to build a fence to enclose a square plot of land with an area of 200 square yards. To the nearest tenth of a yard, how much fencing does the farmer need?

    asked by Anonymous
  144. Geography

    Is India a federal, unitary, or confederate government? I think they are federal

    asked by A
  145. math

    Suppose you have an extremely unfair coin: the probability of a head is 1/5, and the probability of a tail is 4/5. If you toss the coin 40 times, how many heads do you expect to see? A. 8 B. 6 C. 5 D. 4

    asked by michelle
  146. Quadratic Equations

    Describe a sporting situation that has quadratic characteristics. Use key terms such as maximum or minimum, starting or ending points(ordered pairs), shape, vertex, etc. to explain why the situation could be considered to have quadratic characteristics. A

    asked by Heaven
  147. Physics

    A stone is dropped from a tower 100 meters above the ground. The stone falls past ground level and into a well. It hits the water at the bottom of the well 5.00 seconds after being dropped from the tower. Calculate the depth of the well. Given: g = -9.81

    asked by Stacy
  148. math

    how do you do 2/3 x 3 the answer is 6/3 but i don't know how they got that answer

    asked by amari
  149. English

    What is an example for an archetype in the book night by Elie wiesel

    asked by Clarissa
  150. Geography

    What are some local groups of India?

    asked by A
  151. Geometry

    ABGF is a square with half the perimeter of square ACDE. GD = 4 in. Find the area of the shaded region. The shaded area is FGBCDE. I kinda know what needs to happen, but I'm lost and confused on the steps to get there:/ Step by step would be most helpful:)

    asked by SkatingDJ
  152. english

    In which sentence is the meaning of the word astonish expressed A.marley says nothing will surprise scrooge given all that he has seen B. Christmas present asks scrooge to touch his robe C. freds wife expresses her pleasure at the amount of laughter in her

    asked by awesome
  153. Chemistry

    What volume of a 5.0% (v/v) Acetic Acid solution will contain 40.mL of Acetic Acid?

    asked by Michaela
  154. math

    The owner of Campus Cafe plans to open a second location on a satellite campus in 5yrs. She buys an annuity that pays 10.5% interest compounded annually A. If the payment is $4000 a year, find the future value of the annuity in 5yrs. B. How much more

    asked by I have a test tomorrow
  155. math

    how do you do 2 divide by 1/4

    asked by amari
  156. algebra

    find the amount of an annuity that consists of 22 monthly payments of $800 each into an account that pays 2% interest per year, compounded monthly.

    asked by jessica
  157. Science Please Help ASAP

    1. Over which interval is the velocity greatest? FILL IN THE BLANK ____ 2. Over which interval(s) is the velocity zero? FILL IN THE BLANK ____ 4. What is the average velocity in m/s from A to B? FILL IN THE BLANK ____ 5. The velocity of an object goes from

    asked by random person who probly takes the same class as you
  158. Math

    An artist is painting a large mural comprised of different sizes squares. She wants to pain one magenta square that is as large as possible, but she only has one can of magenta paint. If the can of paint can cover 220 square feet, what is the side of the

    asked by Anonymous
  159. Intesive Study

    What Is The Nigerian Food Which Is Made From Grinded Yams Called?

    asked by Ackron.Z
  160. math

    Solve the system of equations algebraically. Show all your steps. y=x^2+2x y=3x+20 Can someone pease help me? I don't think I'm right. Would it be x=-4, y=8 Then, x=5,y=35??

    asked by Mina
  161. English

    Which Of The Following Is Correct; 1.If I Was You Reed 2.If I Were You Reed

    asked by Ackron.Z
  162. Math

    How much interest would be earned on $24,664.64 if the owner invest the full amount into an annuity in a regular compounded -interest account with the term of 4 years .

    asked by Cheryl
  163. Chemistry 2

    Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 107 kJ of heat?

    asked by kread561
  164. science help pls pls

    Dams are used to produce hydroelectric power. Which of these best describes the impact of a dam on the environment? It causes air pollution. It reduces the level of groundwater. It causes changes in the river ecosystem. It reduces the level of oxygen in

    asked by Oscar
  165. Math

    How do I do Why does a poor man drink coffee? I can't get the right answers.

    asked by Anonymous
  166. Maths Ms sue

    A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated

    asked by Jay
  167. science help pls pls

    Which of these statements best explains why scientists use models? to allow other scientists evaluate their data to speed up or slow down natural processes to describe and explain non-observable objects and processes to predict the scientific theories

    asked by Oscar
  168. Algebra

    Michael's total weekly pay includes a base salary plus certain percent of his sales. The table below show Michael's sales for 4 weeks and his total weekly pay. This data represents a linear function. What is Michael's weekly base salary? Sales (x)week 1:

    asked by William
  169. science check

    The lake water in a location in Florida has been found to contain high levels of fecal coliform. What are people in the location most likely to do? breed fish in the lake stop swimming in the lake reduce their water consumption install water filtering

    asked by Oscar
  170. Algebra

    Jay weighs 20 pounds more than Dan whose weight is twice what Kirsten's is. Their total weight is 320 pounds. How much does Kirsten weigh?

    asked by Chloe
  171. chemistry

    A sample of silicon absorbs 14.9 J of heat, upon which the temperature of the sample increases from 21.5°C to 28.5°C. If the specific heat of silicon is 0.710 J g -1 K -1 , what is the mass (in grams) of the sample?

    asked by jaspreet
  172. science help pls pls

    Which of these surface features are formed when the acid in groundwater reacts with limestone? rivers and springs sinkholes and caves hot springs and geysers wetlands and volcanoes is it b pls help me

    asked by Oscar
  173. chemistry

    Liquid methanol (CH 3 OH) is used as an alternative fuel in truck engines. When a 0.150 g sample of methanol was burned in a calorimeter, open to the atmosphere, the temperature increased 1.52 ºC. The heat capacity of the calorimeter was 1.97 kJ / ºC.

    asked by jaspreet
  174. science help PLS

    A nuclear power plant produces huge amount of electricity. However, it dumps radioactive wastes into the sea. This has led to an increase in illness among people living along the coast. Which of these is the best method to solve this problem? Increase

    asked by Oscar
  175. A.P. Chem

    Based on like dissolve like, determine if these compounds will be more soluble in water or an organic solvent. 1) Sodium Butyrate I think Water 2) Phenol I think organic 3) Aniline I think water 4) Sodium phenoxide I think water

    asked by Danny
  176. science help pls pls

    A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example of single pollution multiple pollution point source pollution non-point source pollution would this one be c or b. im having trouble with this

    asked by Oscar
  177. Maths Please help

    A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated

    asked by Sahna
  178. math

    a recipe calls for 2 1/2 quarts of fish stock and 1 1/2 pounds of shrimp. what is the unit rate of fish stock to shrimp in the gumbo

    asked by KB
  179. Geometry

    Find the surface area. sphere: area of great circle = 29.8m^2

    asked by Boberto
  180. Chemistry

    The chemistry problem is "How would you make 500.0 mL of a 3.00 M HCl solution form a stock solution that is 6.00 M?" I have no clue how to even approach this problem.

    asked by Nate
  181. i need help with science pls

    ]Most of the drinking water in a location comes from a river. A steel plant is to be built close to the river. It would provide jobs and facilities to many people in the location. The steel plant would use a huge amount of river water. This might cause

    asked by Oscar
  182. College Physics

    Construct & solve a problem involving a person swimming across a river which has a waterfall some distance downstream. Please help, I have no idea where to start.

    asked by Smi
  183. Math/geometry

    Two angles are complementary.the second angle has 6 more than three times the measure of degrees as the first one. Find the measure of each angle using an equation. Define your variables. I didn't get what the two variables should be... And how I'd write

    asked by Sonja R
  184. Physics

    If the angle between the polarizer and the analyzer is 30 degrees, what light intensity would be transmitted through the polarizer and analyzer, respectively? I know the equationg we're supposed to use is: I= Io*cos2(theta), but how do I find the Io? And

    asked by Kiara
  185. World History

    What impact / effect does genocide have on society today?

    asked by Boberto
  186. Math 142 (Pre-Cal) (Circles)

    A wheel has a radius of 10 inches is rotating with an angular velocity of 2.5 revolutions per second. Find the distance the wheel travels in 15 seconds.

    asked by Ray
  187. math

    What are the coordinates of the points where the graphs of f(x)=x^3-x^2+x+1 and g(x)=x^3+x^2+x-1 intersect? Give your answer as a list of points separated by semicolons. (So "(1,-3); (2,3); (5,-7)" is a valid answer format.)

    asked by Lola
  188. Chemistry

    A 21.7 mL sample of 0.18 M KOH solution required 26.3 mL of aqueous acetic acid solu- tion in a titration experiment. Calculate the molarity of the acetic acid solution.

    asked by Emma
  189. math

    Find all points (x,y) that are 13 units away from the point (2,7) and that lie on the line x - 2y = 10. Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing order. So "(1,-3);

    asked by Jackson
  190. Math

    How must unit cubes be stacked when used to measure volume?

    asked by Dillon
  191. Graphs

    The graph of y = f(x) is shown below. Assume the domain of f is [-4,4] and that the vertical spacing of grid lines is the same as the horizontal spacing of grid lines. The points (a,4) and (b,-4) are on the graph of y = f(2x) Find a and b.

    asked by Les
  192. Trigonometry

    An aircraft took off at an angle of 32 degrees. How far had it flown when it reached a (vertical) height of 1200m (nearest metre)?

    asked by Rebekah
  193. physics

    One end of a thin rod is attached to a pivot, about which it can rotate without friction. Air resistance is absent. The rod has a length of 0.48 m and is uniform. It is hanging vertically straight downward. The end of the rod nearest the floor is given a

    asked by reghuir
  194. volume

    what is volume, if base area 56 in2, height 6 in

    asked by jay
  195. Chemistry

    You have a vinegar solution you believe to be 0.53 M. You are going to titrate 20.72 mL of it with a NaOH solution that you know to be 0.974 M. At what volume of added NaOH solution would you expect to see an end point?

    asked by Claire
  196. Chemistry

    How do I calculate the heat released by 1 mole MgO Given: 0.5 g of MgO Heat gained by acid is 1337.6 kJ I calculated the moles for MgO which I got 0.0125 I'm not sure if I'm on the right track..

    asked by Rose
  197. physics

    A thin, rigid, uniform rod has a mass of 2.60 kg and a length of 1.69 m. (a) Find the moment of inertia of the rod relative to an axis that is perpendicular to the rod at one end.A thin, rigid, uniform rod has a mass of 2.60 kg and a length of 1.69 m.

    asked by reghuir
  198. Chemistry

    Consider the following acid/base reaction CO3^2− + 2H^+ → H2O + CO2 that produces CO2 gas. 6 L of CO2 is collected at STP. What is the molarity of the HCl solution used in the reaction if 81 mL of HCl was needed?

    asked by Claire
  199. finance math

    Richard purchased a car for $39,905. He made a downpayment of $15,000 and paid $614 monthly for 45 years. Find the APR. Richard was able to payoff the loan at the end of 30 months. Using the Actuarial method find he unearned interest, and payoff amount. My

    asked by Latrice
  200. math

    Find the constant c that makes the quadratic x^2 + 7x + c the square of a binomial.

    asked by Les
  201. Math

    Find the smallest value of x such that x^2+6x + 9 = 24.

    asked by Les
  202. algebra

    Express (15 - 20i)/(1-2i) in a+bi form. Thank you for all of the help!

    asked by Ms. Clack
  203. algebra/math

    Find the smallest value of x such that x^2+6x + 9 = 24 Please help me! I am very confused. Thank you!

    asked by timmy
  204. math

    Simplify (1-2i)(1-i)(1+i)(1+2i). Thank you!

    asked by timmy's brother
  205. physics

    Suppose that 7.40 g of hydrogen is separated into electrons and protons. Suppose also that the protons are placed at the Earth's north pole and the electrons are placed at the south pole. What is the resulting compressional force on the Earth?

    asked by lila
  206. try,check,and revise

    there are 27 students in the party than 3x the students come how many are there?

    asked by manar
  207. U.S history

    Compare and contrast the US involvement in the korean and the Vietnam war. Include two similarities and two differences. Can someone please please help me? I honestly remember nothing about these wars.

    asked by Sara
  208. Calculus Help Stuck Part 2?

    Evaluate the lim a. lim x--> 64 (cube root x-4/x-64)

    asked by Marc
  209. try,check,and revise

    Carly and rob combined their Pokémon together. Now they have 42 Pokémon altogether. Carly had 4 more Pokémon than rob. How many Pokémon did Carly have?

    asked by manar
  210. Math

    Richard purchased a car for $39,905. He made a downpayment of $15,000 and paid $614 monthly for 4 years. Find the APR. Richard was able to payoff the loan at the end of 30 months. Using the Actuarial method find he unearned interest, and payoff amount

    asked by Latrice
  211. Math

    The peremiter of a garden of 110 inches with the width of 20 inches. What is the area of the garden? Please shoe me how to do this

    asked by Billy Roberts
  212. Math

    I have a 24 gallon hot tub im filling it 5/8 with water how many gallons of water will be in hot tub??

    asked by Jason
  213. Math

    How many 1/2 sq ft tiles to cover a desk that is 5 1/2 ft long and 3 1/2 ft wide?

    asked by Lori
  214. Math

    A family is building a circular fountain in the backyard. The yard is rectangle and measures 14x by 19x and the fountain is going to be circular with a radius of 6x. Once the fountain is built, what will be the area of the remaining yard? Please do help I

    asked by Neko
  215. Math

    What angle in the first quadrant could you reference to help you find sine and cosine of each of the following angles ? 330 120 113 203

    asked by Aria
  216. Math

    Caleb's family room has the dimensions 5 1/4yd wide and 3 7/8yd long. he needs to find the area of the room so that he knows how much carpet to buy.

    asked by Maggie
  217. IMPORTIANT MATH

    A school is fencing in a rectangular area for a playground. It plans to enclose the playground using fencing on three sides (the fourth is a wall) . The school has budgeted enough money for 75 ft of fencing material and would like to make a playground with

    asked by Jamie
  218. Math

    In 1998, Terre Haute, Indiana had a population of 72,000 people. In 2000, the population had dropped to 70,379. City officials expect the population to level off eventually at 60,000. 1. What kind of function would best model the population over time ? 2.

    asked by Anonymous
  219. Math

    You had 2/3 gallon of milk. Your family used 1/2 gallon. How much milk is left?

    asked by Anonymous
  220. chemistry

    if 62.3 g of zinc react with hydrophosphoric acid (H3PO4) it produces zinc (I) phosphate and hydrogen. how much zinc (I) phosphate is produced?

    asked by kim
  221. Calculus Answer Confirming Not Sure Im Right Help?

    Evaluate the lim a. lim x--> 64 (cube root x-4/x-64) (∛x-4)/(x-64) -> 0/0 so then let cube root x = u u-4/u^3-64 u-4/u^3-64 = u-4/u-4(u^2+4u+16) the u-4 cancel each other out leaving lim x->64 = 1/u^2+4u+16 1/64^2+4(64)=16 oddly i find the number to

    asked by Marc
  222. Biology

    Why do the nuclei of the human white blood cells turn blue in a prepared blood slide?

    asked by Lisa
  223. Physics

    A fan is rotating at 50 rad/s. When turned off it slows down to a stop in 90 seconds. How many rev's does the fan make in coming to a stop?

    asked by Wayne
  224. algebra 1

    In a basketball game you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 5 points a game and have a season high of 12 points a game. How many field goals and free throws could you have made in one game?

    asked by ian
  225. Physics

    A 5kg box is pulled for a distance of 12m with a force of 20N along frictionless surface. The force is applied at an angle that is 15 deg. above the horizontal. a.) how much work was done by the applied force? b) how fast will the box be moving at the end

    asked by Anne
  226. physics

    a 2.2 kg ball is dropped from 3m above vertical spring whose spring constant is 450 n/m. a) how far will it compress the spring? b.) what velocity will the ball have when it leaves the spring again?

    asked by Anne
  227. Please HELP! Calculus (Implicit functions)

    Find the inverse of the function y = (square root x) + 4x , then solve for its 1st order derivative.

    asked by Wawen
  228. AP Physics

    Two identical, small balls are suspended by separate 0.25m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.0 x 10^-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive

    asked by samantha
  229. In 2 minutes she can type 150 words.

    How many words can Kendis types in 1,4,5 minutes if she can type 150 words in 2 minutes.

    asked by Keani
  230. Math

    Keisha bought some packs of gum.there was 5 stiks of gum in ech pack.she opened the packs then gave 8 sticks to her sister.this left keisha with 27 sticks os gum. How many packs of gum did keisha buy?

    asked by Adamaris
  231. AP Physics

    Point A is 2.0 meters away from a charge of -3.o(Mu) and 3.0 meters away from a charge of +1.5(Mu) as shown. A) Find the net Electric field at point A B) Find the total electric potential at point A.

    asked by samantha
  232. Math

    Jasmine and her brother Nat are savibg to buy a digital camera that costs $135. Jasmine earns $15 per week for babysitting and spends $5 of it. Nat earns $18 per week for walking dogs and spends$7 of it. Which expression can be used to find how many weeks

    asked by Des
  233. physics

    ABC is a equilateral triangle of side 0.03m. Charges of +5nC and -5nC are placed at the corner A and C find the resultent electric intensity at B.

    asked by Puneeth
  234. AP Physics

    An electric furnace runs nine hours a day to heat a house in January (31 days). The heating element has a resistance of 10.6 ohms and is hooked up to a 240 Volt potential. What does it cost to run the furnace in the month of January if the cost of

    asked by samantha
  235. AP Physics

    A certain length of wire has a resistance of 21 ohms. This wire is melted down and from the same volume of material a new wire is formed that is three times longer than the original wire. What is the resistance of a new wire? ***PLEASE SHOW ALL WORK!!!

    asked by SARAHM
  236. Science

    Which of the following is true about chemical energy? A. Chemical energy can be stored more efficiently as glucose than it can be as ATP B. Chemical energy is stored when bonds in ATP are broken to form ADP C. Chemical energy is released when bonds in ADP

    asked by Jae
  237. Math

    A sports team is building a new stadium on a lot of land. The lot measures 8x by 12x and the field will be 3x by 6x. how much land will be left for the bleachers, restrooms, and other parts of the stadium? So would I use the foil method or would I use the

    asked by Neko
  238. Math

    Figure undergoes a sequence of transformation that include dilutions. The figure and its final image are congruent explain how.

    asked by Khan
  239. Math

    James wants to reserve a room at the party hall for his birthday. The deposit is $175 and for 6 hours it cost $625. What percent of the cost of the room is the deposit?

    asked by Lisa
  240. Math

    This is on the 2008 Free response AP Calc AB exam- #4a. Let f be the function given by f(x)=(lnx)(sinx). The figure above shows the graph of f for 0

    asked by Cindy
  241. 7th grade math

    Crystal made a bag of trail mix peanuts, raisins, and chocloate chips in the ratio of peanuts:raisins:chocolate chips = 5:3:2. There are 150 raisins in the trail mix. How many peanuts and chocolate chips are in the trail mix?

    asked by Mike
  242. Math

    In 1998, Terre Haute, Indiana had a population of 72,000 people. In 2000, the population had dropped to 70,379. City officials expect the population to level off eventually at 60,000. 1. What kind of function would best model the population over time ? 2.

    asked by Anonymous
  243. Math

    James wants to reserve a room at the party hall for his birthday. The deposit is $175 and for 6 hours it cost $625. What percent of the cost of the room is the deposit? Can someone show me how to work this problem out?

    asked by Lisa
  244. math

    The length of a rectangle is2cm more than its breadth ,and its perimeter is28 cm find the length and breadth of rectangle

    asked by linear equation
  245. chemistry

    From the enthalpies of reaction 2C(s)+O2(g)¨2CO(g)ƒ¢H=−221.0kJ 2C(s)+O2(g)+4H2(g)¨2CH3OH(g)ƒ¢H=−402.4kJ calculate ƒ¢H for the reaction CO(g)+2H2(g)¨CH3OH(g)

    asked by ryno
  246. Physics

    What is the heat in Joules required to raise the temperature of 25 grams of water from 0 °C to 100 °C? What is the heat in calories? Knowing that 4.18 J = 1 calorie and C= 4.18 J/g·°C M=25g C=4.18 J/g Tf=100 Ti=0 Q=25g x4.18j/g (100-0) Q=25x4.18x(100)

    asked by Fabiola
  247. Maxima and minima Application

    Find the maxima and minima coordinates of the vertext of the parabola of y= x^2-8x+1

    asked by Wawen
  248. Math

    Raquel's pay stub has three deductions. What is the total amount of deductions? Round to nearest cent. Gross Pay(wages) is $1625.35 Medicare is $22.48 Social Security is $52.72 Federal Withholding Income Tax (23%) Please show me how to work do this

    asked by Maggie
  249. Integers

    The sum of 6 consecutive integers is 171. Find the smallest of the integers

    asked by Ana