Questions Asked on
October 28, 2015

  1. chemistry

    Calculate Delta G for each reaction using Delta Gf values: answer kJ ...thank you a) H2(g)+I2(s)--->2HI(g) b) MnO2(s)+2CO(g)--->Mn(s)+2CO2(g) c) NH4Cl(s)--->NH3(g)+HCl(g) is this correct? a) H2(g)+I2(s)--->2HI(g) From tables: G HI = +1.3 kJ/mol G H2 = 0 G

    asked by Patrick
  2. college algebra help******

    You intercepted the following message from Boris and Natasha. 25 19 19 30 41 17 15 26 27 41 15 28 18 41 18 29 41 34 22 19 41 27 15 34 22 You do not now the encoding or decoding function but from previous work with Boris and Natasha you know their encoding

    asked by Anonymous
  3. algebra

    Monica earned $60 from a bonus plus $8.50 per hour (h) she worked this week. Which of the following expressions best represents Monica's income for the week?

    asked by Ryan
  4. mechanics

    A 3m long balance beam is simply supported with an overhang at each end of a=0.5m. A gymnast weighing 50kg is standing a distance c to the right of support A and a distance b to the left of support B. How does the maximum bending moment in the beam depend

    asked by qw
  5. Calculus

    Use differentials to estimate the amount of paint needed to apply a coat of paint 0.02 cm thick to a sphere with diameter 40 meters. (Recall that the volume of a sphere of radius r is V=(4/3)πr^3. Notice that you are given that dr=0.02.)

    asked by Henry
  6. precalculus

    find an exact value for sin (3pi/8)

    asked by yani
  7. math

    1( which number is the solution for m + 90 = 150 A( 50 B( 60 C( 140 D( 240 2(which number is the solution of n/3 = -12 A( -36 B( -4 C( 4 D( 36 3( use mental math to find the solution of 19b = 190 A(10 B(11 C(171 D(280 4(estimate the solution of y + 1.8 =

    asked by cross fire
  8. Trigonometry application

    I need help with this problem. am having trouble solving this. A rocket tracking station has two telescopes A and B placed 1.7 miles apart. The telescopes lock onto a rocket and transmit their angles of elevation to a computer after a rocket launch. What

    asked by Loretta
  9. MATH help

    Find the area of the following shape. You must show all work to receive credit. Figure ABCDEF is shown. A is located at negative 2, 6. B is located at negative 5, 2. C is located at negative 2, negative 3. D

    asked by flaca

    Write the equation of the line that passes through the points (3, 6) and (4, 10) using function notation. f(x) = 4x − 6 f(x) = x + 4 y = x + 4 y = 4x − 6

    asked by Oscar
  11. English and Vocabulary

    My Vocab Words: 1. Degenerate 2. Implausible 3. incoherent 4. intercede 5. intricate 6. sanctuary 7. scrutiny 8. sinister 9. suffice 10. vulnerable need help 1-2 Birds feel ___ to attack when they are out in the open where shrubbery is sparse. To attract

    asked by Kyle
  12. Statistics - PLEASE HELP!

    For a lottery game, each ticket has a probability of 1 / 3.09 = 0.324 of winning a prize. Every friday you buy 1 lottery game. a) What is the probability you will win on two of your next three games?

    asked by Lucie
  13. Calculus

    The consumer demand equation for tissues is given by q = (97 − p)2, where p is the price per case of tissues and q is the demand in weekly sales. (a) Determine the price elasticity of demand E when the price is set at $26. (Round your answer to three

    asked by Megan
  14. English

    1. Part I of "Alone" can best be identified as an example of a (1 point) ballad. sonnet. lyric poem. narrative poem. 2. Which of the following lines from "Alone" best supports the author's epiphany regarding the human condition? (1 point) "...I pulled at

    asked by dea
  15. Algebra

    The functions f(x) and g(x) are described below. f(x) = 32x + 8 g(x) = 32x - 9 The graph of g(x) is obtained by shifting down the graph of f(x) by _____ units. is it -17 or 17

    asked by Oscar
  16. chem

    How would your experimental formula of magnesium chloride “MgClx” have been affected if your product was not dried completely before weighing it? Would “x” be too high or two low?

    asked by charles
  17. Math

    Two individuals, A and B, are finalist for a chess championship. They will play a sequence of games, each of which can result in a win for A, a win for B, or a draw. Outcomes of successive games are independent with P(A wins) =.3, P(B wins)= .2,

    asked by Brandy
  18. math

    Name two 2-digit factors whose product is greater than 200 but less than 600

    asked by malik
  19. English

    Which accurately describes the experience of gold seeker traveling to the Klondike? a. most gold seekers travel the whole distance by water b. about half of the gold seekers complete the journey to the Klondike*** c. all gold seeker were aided by the

    asked by Kaai97

    I have 3 coins, They total less than 25 cents. I cannot make 15 cents. I can make 6 cents. What are my coins.

    asked by SAL
  21. language arts HELP PLZ

    1)which of the following passages from "The Pigman and Me" helps to create a humorous mood? A.I just shut up and stared down at the ground B.i was terrified because I didn't know how to fight C.May your left ear wither and fall into your pocket D.he

    asked by regan
  22. math

    if a brush can be 1/8 inch longer than 5 1/4 inch .what is the maximum length if can be?

    asked by le
  23. Math

    -12, 60, -300, 1500 what are the next two numbers in the pattern?

    asked by Loretta
  24. Chemistry

    How many joules of heat are needed to completely vaporize 24.40g of H2O at its boiling point. Delta H vap = 40.6kJ/mol

    asked by Cindi
  25. chemistry

    Write the net ionic equation for the following molecular equation. 3FeCl2(aq) + 2(NH4)3PO4(aq) Fe3(PO4)2(s) + 6NH4Cl(aq)

    asked by jessica
  26. math

    a section of lan is a square piece of land 1 mile on a side. How many acres are in a section

    asked by angela
  27. Social Studies

    Which of the following statements would describe a strength of the Articles of Confederation? A. The Confederation Congress could pass taxes. B. The federal court system handled all judicial matters. C. Any law passed by the Confederation Congress would

    asked by Amber
  28. water & climate

    We have a catchment with a total area of 9.0 km2, where the runtime principle applies. The area is subdivided in 5 regions (A1 to A5) in such a way that every individual area has a runtime of 30 minutes. The areas drain sequentially. A5 is at the top of

    asked by rooney
  29. psychology

    What are the steps of the scientific method?

    asked by Anonymous
  30. maths

    A helicopter flies in a straight line until it reaches a point 20 km east and 15 km north of its starting point. It then turns through 90° and travels a further 10 km. (a) How far is the helicopter from its starting point?

    asked by ahmer
  31. MATH

    Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's

    asked by Lucy
  32. Math

    Mark needs to cut a piece of glass to replace a broken window. He has four pieces of glass: 6 feet long, 5 feet long, 3 feet long, and 7 feet long. If the length of the glass he needs to cut is feet long, which piece of glass should he cut to have the

    asked by MsHemmoPenguin
  33. Math

    Which of the following is equal to the expression below?

    asked by Joshua
  34. math

    Hasan has 18 3/4 yards of fabric. It takes 3 1/6 yards to make a pillowcase. Has an plans to make as many pillowcases as he can. How many yards of fabric will be left over?

    asked by Anonymous
  35. geometry

    Triangle ABC is a right triangle. If side AC=5 and side BC=6, What is the measure of side AB which is the hypotenus

    asked by Anonymous
  36. Language Arts

    Which revision to sentence 4 contains an example of vivid description? Sentence 4: The map was confusing A)The number of colorful crisscrossing paths on the map made Sal's eyes glaze over B)The map looked completely baffling*** C)Even when she turned the

    asked by Shalee ^~^
  37. Social Studies

    Who was the Georgia Patriot who helped defeat Thomas Brown, freeing Agusta from Loyalist control on June 5, 1781? A. Elijah Clarke*** B. Nancy Hart C. General Lord Cornwallis D. George Galphin Is this correct?

    asked by Amber
  38. Statistics

    A certain type of artificial heart has four independent, critical components.Failure of any one of these components is a serious problem that will cause the artificial heart to fail. The 5 year failure rate for each component follows: component 1=.02,

    asked by Brandy
  39. Math

    Graph of f(x)=log_2(x) has been transformed to g(x)=alog_2(x)+k. The transformed image passes through the points (1/4,-9) and (16,-6). Determine a and k. No idea. Thanks!

    asked by Bethany
  40. science

    quartz is a number 7 on the mohs hardness scale. Apatite is a number 5. a student has a mineral sample that scratches apatite, but quartz scratches the sample. What is the minerals most likely hardness 2 10 6 answer 2

    asked by need help
  41. Career

    8.) Dale has just come home from an informational interview. He should: (1 point) A.)write the interviewer a thank–you note. B.)compile his notes from the interview. follow up on the research tips the C.)interviewee gave him. D.)do all of these. 9.) A

    asked by Quavo #FreeOffset
  42. Social Studies

    Who organized trade in medieval cities and towns? (2 points) guilds• clergy knights journeymen 2. What is a fief? (2 points) a ruler of the Franks a ruler in Charlemagne's empire land given in exchange for loyalty• a Viking warrior 3. Christians and

    asked by mary Ms. Sue Please
  43. algebra 2 A

    Unit 5: Quadratic functions and equations. I need help with the Firework display portfolio?? Fireworks Display Portfolio ALGEBRA 2 A: QUADRATIC FUNCTIONS AND EQUATIONS Directions: You are part of a fireworks crew assembling a local fireworks display. There

    asked by Cody
  44. Chemistry

    Calculate the mass of Fe(OH)3 s) produced by mixing 50.0 mL of 0.153 M KOH (aq) and 25.0 mL of 0.255 M Fe(NO3)3 (aq), and the number of moles of the excess reactant remaining in solution. I got 0.242 g Fe(OH)3 and 3.83 mmol Fe3+ remaining.

    asked by Tiffany
  45. Social Studies

    Describe the Greek and Roman contributions to today's world.

    asked by Rose
  46. First grade reading hmwrk?

    I'm helping my little brother with home work. And he has to do something were you complete the sentences. The sentence I'm stuck on the first one. The sentence is: The_____Men______Me his words are: Set | Sent | Ten | Tell | Let | Get | All | Call | Make |

    asked by Shalee ^~^
  47. English

    What impact did the Klondike Gold Rush have on Northern Canada? a. The Canadian government made the Yukon a territory and began to develop the region b. The gold rush made people see the Yukon region as a frozen wasteland c. Northern Canada was greatly

    asked by Kaai97
  48. Algebra

    2. X - 7 > 10 X > ____ 3. 3x ≤ 21 X ≤ ____ 4.5a - 2 < 18 A

    asked by Peter
  49. Algebra

    A collection of Halloween candy contain a total of 5 Goodbars and Moundbars.Chew on this,The grams of fat in these candy bars exceed the daily maximum desirable fat intake of 70 grams by 7.1 grams.How many bars of each kind of candy are contained in the

    asked by Hung
  50. phsyics

    The block shown in figure below lies on a smooth plane tilted at an angle è = 21.5° to the horizontal. Determine the acceleration of the block as it slides down the plane. Ignore friction.

    asked by Tiffany
  51. Algebra

    At Phillips college 40% of the students are male. If there are 1200 male students, then how many total students are there?

    asked by Brenda
  52. Math

    two boats leave the same port at the same time. one travels at a speed of 29 mph in the direction N 50 degrees E and the other travels at a speed of 35 mph in the direction S 70 degrees E. how far apart are the two boats after an hour.

    asked by Claire
  53. Language Arts

    2. In which of the following sentences does the boldfaced word contain the Latin root -lum-? A.The bear tucked into his cave for a long winter's (slumber). B.Hannah's face was (luminous) with the soft morning light. *** C.The (plumber) peered into the dark

    asked by Shalee ^~^
  54. U.S. History

    1) How did replacing Roosevelt's secretary of the interior cause a dispute between Taft and the progressives? A: Replacing Roosevelt's secretary of the interior, James R. Garfield, an agressive conservationist, with Richard A. Ballinger, a more

    asked by Victoria
  55. Chemistry

    Two aqueous solutions, both at 25.00°C (100.0 mL of 0.223 M Pb(NO3)2 and 100.0 mL of 0.144 M Na2S), are mixed together in a calorimeter with a Ccalorimeter of 11.8 J/°C. The temperature of the solution increases by 2.40°C. Assuming that the density and

    asked by Matt
  56. Electrical theory

    a series RL circuit contains two resistors and two inductors. the resistors are 33 ohms and 47 ohms. inductors have inductive reactances of 60 ohms and 30 ohms. the applied voltage is 120 volts. what is the voltage drop on the 33 ohm resistor?

    asked by Ed
  57. Math

    Write the solution to the inequality in set-builder notation. 9t-4>32 a. {t|t>4} b. {t|t>6} c. {t|t>28} d. {t|t>36}

    asked by Kaai97
  58. career

    9.) A job meter is a way for: (1 point) companies to compare people who apply for jobs. A.)Write the interview a thank-you note. B.)employers to supervise workers when managers cannot see them. C.)you to evaluate your continued interest in a potential

    asked by takeoff
  59. math

    if one car drives at 83 mph and the other drives at 83 mph how long until their 83 miles apart. i did 83x + 48x = 83 131x = 83/131 divided by 1 x = 83/131 multiply by 60/1 = 131 multiplied by 60 = 2.2 i got 2.2 hours

    asked by lexus
  60. geometry

    The vertices of a triangle are P(–4, 1), Q(–2, –8), and R(8, –1). Name the vertices of the image reflected across the y-axis. 1.P'(–4, –1), Q'(–2, 8), R' (8, 1) 2.P'(4, –1), Q'(2, 8), R'(–8, 1) 3.P'(4, 1), Q'(2, 8), R'(–8, –1)

    asked by jenny

    A ball is displaced from O to A along a straight line with a distance of 5.0m,it will later return to O along the same path.what is the resultant displacement and the total distance by the ball?

    asked by DICKSON
  62. math

    Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. y^a/y^b

    asked by Claire
  63. aarays and expanded algorithm

    How to get the answer to this problem 37 ×45

    asked by bobby
  64. San Jose city college

    Suppose a plane flying west a distance of 600 miles take 6 hours .The return trip take 5 hour . Find the airspeed of the plane and the effect wind resistance has on the plane?

    asked by Hung
  65. Parametric derivatie help plz

    Find the equation of the line tangent to the parametric curve define by x=cos2t and y=sin3t and t=pi/12 plz i don't no where to start from show working

    asked by Collins
  66. math

    which number will have the same result, when rounded to the nearest ten or hundred? 97 118 and 5 179 5,091

    asked by Elsa
  67. Math

    Cerulean City is 20 miles from home. We have gone 15 miles. What fraction of the distance have we gone? We have gone ? of the distance. (My thinking: I'm not sure, but I have a thought that you are supposed to divide 20 divided by 5.)

    asked by Grace (The Puzzled Penguin)

    If a ball is displaced from O to A along a straight line with a distance of 5.0m,what is the resultant displacement and the total distance by the ball?

    asked by Anonymous
  69. 11th grade math


    asked by Claire
  70. Social Studies

    Which one of George Washington's generals played a key role in leading Patriot soldiers to victory in Augusta? A. Robert Mackay B. Thomas Brown C. James Grierson D. Nathanael Greene*** Is this correct?

    asked by Amber
  71. 11th grade math

    Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. y^a/y^b

    asked by Claire
  72. science

    Can the pitch of music affect concentration

    asked by Aditto
  73. Math

    At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 25 knots and ship B is sailing north at 21 knots. How fast (in knots) is the distance between the ships changing at 5 PM?

    asked by victoria
  74. Math

    Landri slides a calculator across The 0.91m tall lab table but Sarah misses the catch. The calculator slides off the table and lands on their target on the floor which they had placed 1.03m from the base of the table. How fast was the calculator moving

    asked by Camille
  75. Math

    Are these the solutions to sin2x sinx = cosx? pi/2, 3pi/2, 3pi/4, pi/4, 7pi/4, 5pi/4

    asked by Anonymous
  76. math

    determine which two values the following expression is between? A.10.24 and 10.89 B.9.61 and 10.24 C.9 and 9.61 D.10.89 and 11.56 plz i really need someones help!!

    asked by ter
  77. chemistry

    If the specific heat of water is 4.180 J/(g/°C), what mass of water can be heated from 5.0 °C to 80°C by 27.0 kJ of heat?

    asked by wendi
  78. Calculus

    Let f(x)=x^4. If a=1 and dx=Δx=1/2, what are Δy and dy?

    asked by Henry
  79. Calculus - Differentiate

    Differentiate y= (sin(x)) / (x^4) y' = ?

    asked by victoria
  80. Science

    which of the following could not have happened as a pot of water boiled on the stove? A. Particle vibration increased. B. Particle vibration decreased. C. Particles moved father apart. D. Particles moved randomly. My answer is C.

    asked by Lin
  81. Science

    What would happen if gametes were not haploid? a. The offspring would have half the number of chromosomes it is supposed to have. b. The offspring would have double the number of chromosomes it is supposed to have. c. The offspring would be genetically

    asked by goldensparklegirl222
  82. math

    What is the value of x? -5x=-35 x=

    asked by flaca
  83. Math

    Just learned log rules and I don't get it. How do you solve log5x^2 + 4log5x = 12 ? Thanks in advance.

    asked by Ken
  84. Chemistry

    How do you write the complete ionic equation and net ionic equation for ammonium chloride and copper (II) sulfate in water?

    asked by Tiffany
  85. Science

    which of the following features make earth and venus similar to each other ? (1point ) A . their size and mass b. their rates of rotation c. their atmospheres d. their directions of rotation****

    asked by Cami
  86. math help azap

    What is the value of x? 6x-2(x+4)=12 x=

    asked by flaca
  87. Chemistry

    Arrange the following 0.100 mol L-1 solutions in order of increasing pH: CH3COOH, NaCl, NaCH3Coo

    asked by Litia
  88. physics

    a 450 cm^3 of aluminum (D = 2.7 g/cm^3) is lowered carefully into a completely full beaker of water? what is the weight of the water, in newtons, that spills out of the beaker?

    asked by denise
  89. MATH help

    What is the value of x? 8x-9=3x+16 x=

    asked by flaca
  90. Social Studies

    Which event marked the end of the Revolutionary War? A. the surrender of Thomas Brown B. the surrender of British General Lord Cornwallis*** C. the American loss at Camden, South Carolina D. when the Continentals took George Galphin's outpost at Silver

    asked by Amber
  91. U.S. History (Ms. Sue)

    Please, check my answers! 1) How did replacing Roosevelt's secretary of the interior cause a dispute between Taft and the progressives? A: Replacing Roosevelt's secretary of the interior, James R. Garfield, an agressive conservationist, with Richard A.

    asked by Victoria
  92. math

    5 part question. 1st part is Mr. Black has 3 baskets of apples in his store. in each basket are 9 red, 6 granny, 5 empire, 3 Fuji and 1 honeycrisp. What is the total number of each kind in the basket. We have 72 as the answer.

    asked by Tracy
  93. math

    Rachel deposited $6,004 in a savings account with simple interest. Three months later, she had earned $210.14 in interest. What was the interest rate?

    asked by Jessica
  94. Behavioral Statistics Help!

    The majority of the data is normally distributed if there are enough subjects. For instance, if you collected test scores of only a few honor students, the data will most likely not be normally distributed because you would have a sample that did not

    asked by slomomo
  95. Social Studies

    Who won the battle of the Atlanta Campaign

    asked by Katie
  96. physic

    a mass of 3kg rest on horizontal plane. the plane gradually inclined until at a angel 0=20 degrees with the horizontal, the mass just begins to slide. what is the coefficent of static friction between the block and the surface?

    asked by daddy
  97. physics

    A 214-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.4°. A horizontal force (magnitude = 541 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the

    asked by sarah
  98. math

    a rectangular tank,50cm long and 30cm wide,contains water upto a height of 9 cm.a box of dimensions 25cm,25cm,20cm is not placed in the tank so that its square faces rest on the bottom of the tank. the quantity of the water that must be poured into the

    asked by madhulika
  99. chemistry conversion

    Please help me with this problem converstion 0.04 ug/ul to ng/mL My answer is: 0.04 ug/ul = 40,000,000 ng/mL is this correct?

    asked by Estera
  100. Math

    First vehicle is traveling at 50 miles per hour. Second car is traveling at 65. They ate 15 feet apart when the second cars slammes on break. Will they have a empack and at what speed.

    asked by Julia
  101. health economy

    Suppose that you are to specify a short-run production function for counseling services.Which inputs might you include in the production function?Which would be varaiable inputs and which would be fixed inputs?

    asked by nicole
  102. math

    what is 5.696 in scientific notation thanks!

    asked by Esther
  103. Algebra

    Whitch number is a perfect cube? 7 25 66*** 27

    asked by Kaka
  104. math

    Each child has 3 pencils if there are 225 children how many pencils are there in total

    asked by pragathi
  105. Jose Escandon

    How to write in Expanded algorithm of 4296 × 7 =

    asked by jazlyn
  106. math

    Mary purchased 4 blouses, 2 jackets, and 3 skirts. How many different outfits using a blouse, a jacket, and a skirt are possible?

    asked by Anonymous
  107. Algebra 2

    Can someone help me solve this inequality please? So I'm supposed to write the answer in interval notation and then graph it. The problem is the answer I get is negative and I thought that absolutes cannot be negative? Am I wrong? Here is my work so far:

    asked by Jade
  108. Statistics HELP!!

    Identify an example of a population that you would expect to be normally distributed. Explain why, according to you, it would be normally distributed. Then, describe a subset of the population you identified and explain why it would not be normally

    asked by slomomo
  109. math logarithm


    asked by logarithm
  110. Math

    Question: use the first principles of a derivative to find (dy÷dx) f(x)= -x^4 +4x^4 So we need to use the formula f(x+h)- f(x) ÷ h So far I have x^4 - h^4 -4h^3x -6h^2x^2 - 4h^3-x^4 + 4x^2 +8hx+ 4h^2÷ h is this correct and what do I do after

    asked by fayza
  111. Math

    The cost of a set of 4 tires is $192.00. What is the unit rate for the cost of 1 tire.

    asked by Amy
  112. science

    determine if each equation represent a redox reaction.if it is a redox reaction,write dowm the two half reactions of(1) 2KCL3=2KCL+3O2,,(2)BaCL2+2KIO3=Ba(IO3)2+2KCL and (3)HCL+NaOH=H2O+NaCL

    asked by shanten
  113. Social Studies

    What were the Indian achievements in the following? Medicine Metallurgy Math Literature

    asked by Hayden
  114. math

    Don bought a long sleeve shirt for 24.80. If the sale was 20% off, how much was the shirt originally? A) 32.00 B) 49.60 C) 31.00 D) 34.50

    asked by Anonymous
  115. Chemistry DRBOB HELP ME PLEASE

    Please help me N2O5(g) + H2O(l) --> 2HNO3(l) delta H° = -76.2 kJ H2O(l) --> H2(g) + 1/2O2(g) delta H° = 286.0 kJ 1/2N2(g) + 3/2O2(g) + 1/2H2(g) --> HNO3(l) delta H° = -174.0 kJ Calculate delta H° for the reaction 2N2O5(g) --> 2N2(g) + 5O2(g)

    asked by Brooke
  116. Chemistry DRBOB HELP ME PLEASE

    Please help me N2O5(g) + H2O(l) --> 2HNO3(l) delta H° = -76.2 kJ H2O(l) --> H2(g) + 1/2O2(g) delta H° = 286.0 kJ 1/2N2(g) + 3/2O2(g) + 1/2H2(g) --> HNO3(l) delta H° = -174.0 kJ Calculate delta H° for the reaction 2N2O5(g) --> 2N2(g) + 5O2(g)

    asked by Brooke
  117. math

    Don bought a long sleeve shirt for 24.80. If the sale was 20% off, how much was the shirt originally? A)32.00 B)49.60 C)31.00 D)34.50 my answer is 31.00

    asked by Anonymous
  118. Physics

    A 1400 kg car moves along a horizontal road at speed v0 = 21.4 m/s. The road is wet, so the static friction coefficient between the tires and the road is only μs = 0.127 and the kinetic friction coefficient is even lower, μk = 0.0889. The acceleration of

    asked by AIsh
  119. Physics

    A 0.473 kg mass is attached to a spring with a spring constant 110 N/m so that the mass is allowed to move on a horizontal frictionless surface. The mass is released from rest when the spring is compressed 0.119 m. Find the maximum force on the mass.

    asked by AIsh
  120. Kengolry international acedemy


    asked by Gift
  121. Earth Science

    How to draw 40 degrees north and 70 degrees south with latitude and longitude

    asked by Ameen from school I.S.187
  122. World History

    I need two causes and two effects for the following: The Italian Renaissance, The Medici family takes control of Florence, Mannerism moves to Italy, French Wars of Religion ends, John Locke develops theory of government. Please help I can't get any and I

    asked by Anonymous
  123. college chemistry

    Describe the preparation of 250cm^3 of 0.05M H2SO4 given the following stock bottle solution. %purity=98 Specific gravity=1.84 Molecular weight=98

    asked by Ezinase
  124. Life Skills

    How Does Empathy Positively Affect Education?

    asked by Robert
  125. Geometry

    given ABCD IS A rectangle . IF BC =5ft and AB =8ft find the missing sides

    asked by Troy
  126. Physics

    Your 50 lb sister is seated at one end of a 12 ft teeter totter. If the fulcrum is in the center, what is the moment of her weight? If you weigh 100 lbs, how far from the fulcrum must you sit in order to balance her? (I thought it may be 6 feet)

    asked by Angie
  127. Math

    I cannot figure out the missing value. 7^ 8 6 13=84

    asked by Corey
  128. Grade 10 Math

    A hospital plans to build a wheelchair ramp. It's slope must be less than 1/12 . The entrance to the hospital is 70cm above the ground. What is the minimum horizontal distance needed for the ramp?

    asked by Troy
  129. Algebra 2

    The cows at the evaleen dairy produce enough milk to fill a 4800 gallon tanker truck each day. The milk is then hauled to a processing plant where it it put into smaller storage containers and then used to fill gallon jugs that are delivered to local

    asked by Health
  130. Social Studies

    which of the following was instrumental in the creek resistance to the white settlers taking their land? A. George washington B. Alexander McGillivray*** C. Confederation government D. Georgia legislature

    asked by Amber
  131. science

    in western united states: How many states border by ocean?

    asked by joe

    first, we must find 2z(dz/dt)=2x(dx/dt) + 2y(2y/dt) simplifying, we get: dy/dt=???(dx/dt + dy/dt) What is that simplified?

    asked by Anonymous
  133. mathematics

    The diagram shows how a cable is attached to the mast of a sailing dingy. A bar pushes the cable out away from the mast. Find the total length of the cable.

    asked by khizar
  134. math

    Dracula, Frankenstein, Mummy, Gilda and Zelda are all having a Halloween party. Each of them has given an invitation to all of the others. How many invitations have been given out?

    asked by Sally
  135. precalc

    h = -15 sin (π/7 (t-2)) + 42 h is the height of the ball above the floors in inches at time t seconds 1) what is the highest the ball will ever bounce? 2) when is the first time the ball bounces that high? 3) write a general expression for the times at

    asked by yani
  136. Chemistry

    what principles in UV-VIS spectroscopy and IR regions? how to work with organice molecules in both radiations?

    asked by jess
  137. Earth Science

    How to draw 40 degrees north and 70 degrees south with latitude and longitude. plez tell me how to draw it because im studying for a test and they tell me the questions I just need to know how to DRAW IT NOT WEBSITES BUT ITS STILL OK

    asked by Ameen from school I.S.187
  138. Chemistry

    Identify the excess reactant (HCl or NaOH) and its molar concentration when 1.55 g of NaOH is stirred into 150.0 mL of 0.250 M HCl.

    asked by Tiffany
  139. calculus

    if t represent career time and y represent earnings profit, what will be the earnings career function if y=5(e)^(1+0.5t-0.05(t)^2)

    asked by Brown
  140. math

    use a trial and error strategy to solve this problem.two years ago sam was two-thirds of pam's age. in three years sam will be three-fourths of pam's age. in 20 years the sum of their ages will be 69. how old is sam?

    asked by kasia
  141. physics

    The aerodynamic drag on an aeroplane is given by D=bv^2. The power output of the aeroplane cruising at constant speed in level flight is proportional to a> v b> v^2 c> v^3 d> v^(3/2)

    asked by Anushka
  142. Math HELP!

    what is 9,348+102+5,802+1,933=

    asked by Kailyn
  143. Math

    If you are 15 how old will you be when you get out of high school?

    asked by Aaliyah
  144. REPORT


    asked by SAGAR
  145. English

    True or false: Although Jack London lived to a relatively old age, his works did not enjoy popularity until after his death. True False***

    asked by Kaai97
  146. English

    Please check my answers. Which of the following sentences is punctuated correctly ? On January 1, 2000, many people thought that the new millennium would bring the end of the world,but it didn't ******** On January 1 2000, many people thought that the new

    asked by Hannah
  147. English

    1. Get off the ship. 2. Get out the ship 3. Get down the ship. 4. Get out of the ship. 5. Get down from the ship. =============== Which ones are the same as Sentence 1? What about the others?

    asked by rfvv
  148. U.S. History

    1) What problems did President Taft have with progressives on tariff issues? A: President Taft had several problems with progressives on tariff issues. One issue was the struggle with progressives over Speaker of the House Joseph G. Cannon. Progressives

    asked by Victoria
  149. Social Studies

    What is the meaning of Gulf for a fifth grader?

    asked by Anonymous
  150. Chemistry

    How many oxygen atoms are there in 0.018 mg of H2O?

    asked by Ashley
  151. Chemistry 218

    assume all of the ionized aspirin remains in the buffer solution and all of the un-ionized aspirin goes into to the ethyl acetate, what is the molarity of the aspirin in the ethyl acetate at pH 2 and pH 8? what equation would ou use for this?

    asked by Rebecca
  152. Language Art

    Directions: If the group of words is correctly capitalized, write Correct on the line. If the group of words is not capitalized correctly, rewrite it using correct capitalization. 1. Mississippi River spelled with lowercase m. The correct way is to write

    asked by Patrick
  153. Math

    A juice company wants find actual volume of juice in a 1-L carton

    asked by Makayla
  154. Math

    Find the equation of the line of intersection of the two plane given by x+y+z=5 and 4x+y+2z=15

    asked by Yong
  155. maTH

    1.solve the inqulitey m-7-1 3.p+5

    asked by AABBCC
  156. Dallas Community College

    A 2.00 kg blob of clay is moving with a velocity of 6.00 m/s at 49.0° when it collides and sticks to a 4.00 kg blob of clay that is moving with a velocity of 5.00 m/s at -123.0°. What is the magnitude and direction of the velocity of the resulting big

    asked by Harry
  157. Algebra

    It took 3 hoses 4 hours to fill the first 20,000 gallons in a swimming pool. Then a 4th hose was added. If there was 15000 gallon left to fill, how long did it take?

    asked by Angela
  158. HTT

    Calculate the IRR and NPV of this project utilizing 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for $1,540,000 and an early investor agreed to invest the remaining $660,000 in exchange for 20% ownership in the project.

    asked by roslyn
  159. Language Arts

    Decide whether each list of nouns is common or proper. Add another example to each list. Write P if the list shows proper nouns. Write C if the list shows common nouns. 1. Nebraska, Colorado, Utah-p Example: New York 2. spikes,wood ties, sledgehammers-c

    asked by Patrick
  160. Maths

    A number of two digit is 8less than seven times the unit digit. When the digit are reversed the number is decreased by 9, what is the number.

    asked by Hayor
  161. math

    Plot the two points described. Cherries cost $5 for two pounds and $7.50 for 3 pounds.

    asked by ariel
  162. algebra

    1/4 - 2/3x = 3/4 - 1/3

    asked by gracelyn
  163. writing please someone help!!!

    which traits are strongest in your persuasive essay: ideas, organization, voice, word choice, sentence, fluency, or conversation? provide textual evidence from your essay to support your answer. Please can someone help I'm having trouble figuring this one

    asked by Anonymous
  164. Pre-Calculus

    During a storm a ship is being tossed up and down by huge waves. The vertical motion of the ship is given by the equation: h = 21cos((2π/5)t) where h is height above sea level in feet at time t minutes. 1) Give the first 2 times that the ship is at sea

    asked by Clarice
  165. MAth

    1.solve the inqulitey m-7

    asked by DEEZ GOT HEE
  166. Math

    A quality company verifies 2 shirts from the same box to insure the quality of the shirts that are being sent out. If each box contains 3 small, 4 medium, and 2 large shirts, what is the probability that they will pick the same size shirt for a box? I am

    asked by Jessica
  167. Chemistry! HELP

    What information about an electron in an atom is given by the following quantum numbers? 2px+1/2 Answer? (idk if this is right) : An electron located in the p orbital in the 2nd main enrgy level would be said to be located in the 2p sublevel.

    asked by Sarah
  168. World History

    What sort of things would contribute to the ancient Greek Intellectual and Political parts of S.P.R.I.T.E? Note: This is not homework this is just a question I have about my project.

    asked by Aelia
  169. math help azap

    What is the value of x? x+15=8 x=

    asked by flaca
  170. GOA

    A bullet is fired in a horizontal direction with a muzzle velocity of 300m/ the absence of air resistance,how far will it have droppped in travelling a horizontal distance of 20m.

    asked by uchechukwu
  171. Chemistry! HELP

    A chemistry student used the symbol "sx" to represent an s orbital that lies along the x-axis. Is this reasonable. Justify your answer.

    asked by Sarah
  172. Chemistry

    how to write a balanced equation for the following reactions with amounts of released or absorbed heat expressed in numbers within the equation 1 mole of methane with O2 yields CO2 and H2O and releases 213 kcal of heat

    asked by Tammy
  173. Dallas can

    Suppose you invest $2000 at an annual interest rate of 5.1% compounded continuously. How much will you have in the account after 3 years? Round the solution to the nearest dollar

    asked by Jair
  174. Algerbra

    The difference between two numbers is 77. Five times the smaller is equal to 7 more than the larger. What are the numbers?

    asked by Lissa
  175. math

    What is the value of x? 12-x=7 x=

    asked by flaca
  176. PHYSICS

    A 81.8-kg skier rides a 3300-m-long lift to the top of a mountain. The lift makes an angle of 12.9 ° with the horizontal. What is the change in the skier's gravitational potential energy?

    asked by Anonymous
  177. math please help

    What is the value of x? -5x=-35 x=

    asked by flaca
  178. Astronomy

    Why is the greenhouse effect on Earth not as drastic as on Venus? -There is no carbon dioxide in Earth’s atmosphere. -The oceans dissolved much of the carbon dioxide. -Earth is smaller than Venus so it can’t hold the gases in the atmosphere. -There is

    asked by Sandra
  179. Geography and History (Ms. Sue)

    1) How was the Yosemite Valley formed? A: ? 2) How did the establishment of the national park system help to conserve natural resources? A: The establishment of the national park system provided a safe haven for wildlife and put millions of acres of land

    asked by Victoria
  180. precalculus

    given that x is in quadrant 1 and that sin x = 2/3, find exact values for: is this correct? 1) sec (30° + x) = -3/√15 2) cos (1/2 x) = √(-√5)/2

    asked by o
  181. precalculus (check answer)

    given that x is in quadrant 1 and that sin x = 2/3, find exact the value for: sin (3pi/8) = - √(1-√2) / (2√2) is my answer correct?

    asked by o
  182. math

    y= 3x+ 9

    asked by chris
  183. MATH help

    What is the value of x? x/4-5=6 x=

    asked by flaca
  184. Resturant/Diner

    Make up a name for a restaurant or a diner. Don't ask. Its for an English assignment! :):-)

    asked by Jasmine
  185. Grammar

    Which choice is a sentence fragment? Question options: Turning on the light, he suddenly got a shock. In the first year, Julio won three blue ribbons. Maggie's photos displayed in the lobby. We swept the floor first and then washed dishes.

    asked by Mary
  186. math

    what is 10 5/18 - 8 5/6 A. 2 5/9 B. 2 13/18 C.1 4/9 d. 1 11/18 I think It is B?

    asked by john
  187. math

    Ken borrowed $76.14 from his brother. Last month he paid him one-third of what he owes. Ken told him that next week he'll be able to pay 50% of what is still owed. After that payment, how much will Ken still owe his brother? plz!! i really need help

    asked by ter
  188. physics

    a truck beneath an airplane that is moving 180 km/h at an angle of 47 to the ground. How fast must the truck travelto stay beneath the airplane? Answer in units of km/h.

    asked by chris
  189. Chemistry

    2 KMnO4 + 5 H2C2O4 + 3 H2SO4 ---> 2 MnSO4 + 10 CO2 + 8 H2O + K2SO4 How many milliliters of a 0.123 M KMnO4 solution is needed to react completely with 3.141 of oxalic acid? Please help I've worked this every way I know.

    asked by Tyler
  190. math

    negative one times the sum of twice a number and 3 is equal to two times the difference of -4 times the number and 3. what is the number?

    asked by Zhen
  191. Programming

    Create and test a Visual Basic application to allow teachers to enter student results. One dimension of the array will hold the results for up to 10 students. The other dimension will hold up to 5 subjects. Additionally a string based array will hold the

    asked by Matthew
  192. PHYSICS

    A 48.7-g golf ball is driven from the tee with an initial speed of 47.5 m/s and rises to a height of 27.5 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 6.60 m below its

    asked by Anonymous
  193. Math

    In a high school reunion, the organizers decided to sell 1500 raffle tickets at 1000 each for the four prizes of 250,000 125,000 75,000 50,000 What is the expected value of one ticket? I got -670, is this correct? Thanks!

    asked by Jen
  194. Math

    Find the equation of the line of intersection of the two plane given by x+y+z=5 and 4x+y+2z=15 Pls help me to solve this.. After i use cross product i got (1,2,-3)..Then what should i do?

    asked by Yong
  195. Physics

    An object initially at rest experiences an acceleration of 9.8 m/s^2. How much time will it take to achieve a velocity of 58 m/s?

    asked by Sarah
  196. algebra

    How long will it take for an investment to triple in value if it earns 11.75% compounded continuously?

    asked by maria
  197. physics

    An engine of mass one metric ton is ascending on an inclined plane, at an angle tan ^-1 (1/2) with horizontal, with a speed of 36km/hr. If the coefficient of friction at the surface is 1/(3^1/2) then the power is?

    asked by Anushka
  198. math 7th grade

    solve 2 step equation m + 5 ______ = -5 I thought the answer was -50, but my mom is not sure

    asked by judith
  199. statistics

    what is the difference between the coefficient of determination and residuals

    asked by Anonymous
  200. math

    Karla went shopping and bought a dress for 5 1/2 dollars and a skirt for 2 3/5 dollars/ If she paid for the clothes with a $20. how much money did she have left?

    asked by Tonya
  201. Math

    Are my statements correct? U={1,2,3,4,5,6,7,8}, A={1,3,5,7}, and B={4,5,6} My statements: A⊆B B⊆U

    asked by Kaai97
  202. Math

    How do I get (sinx cosy + cosx siny) (cosx cosy + sinx siny) in the form of 1/2(sin2x + sin2y)?

    asked by Anonymous
  203. math

    The value of a car depreciate each year by 5% of its value at the beginning of that year . lf its value when new on first January 2000 was 10250, what was its value in January 2009, when it was 9 years old? give your answer, correct to three significant

    asked by faith
  204. Science

    Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He

    asked by Carrie
  205. Math

    Find the value of cos2x. cosx = -2/3 pi/2 < x < pi Is this -1/9?

    asked by Anonymous
  206. math

    the cost of 5 digital cameras and 3 similar video cameras is 3213.00. each video camera costs 4 times as much as each digital camera. john buys a digital camera and a video camera. how much does he pay?

    asked by ra
  207. Career

    4.)Your public library can provide you with ? A.)books & other printed information about careers B.)Access to internet sites & other elctronic materials about careers C.)Staff members to help you find materials D.)All of these I Put D Am im correct?!

    asked by Quavo #FreeOffset
  208. English

    Homework Help: English Posted by rfvv on Tuesday, October 27, 2015 at 9:18am. 1. Tomorrow, we're going to go to hike. 2. Tomorrow, we're going to go hiking. =================== Which one is grammatical? Are both grammatical? Then, what is the differencein

    asked by rfvv
  209. Math

    Sixty girls were scheduled to paint flower pots for the school's annual fair. When 3 of the girls became sick the rest of the girls had to paint 8 more flower pots each how many flower pots did they have to paint altogether ?

    asked by Jen
  210. Math Can Someone explain me about this question

    Danika has a board that is 4 yards long. How much needs to be sawn off to make the board 2 feet 8 inches long? A) 1ft 4in B)9ft 4in C)8ft 6in D)2ft 6in

    asked by Bob
  211. math

    Karla went shopping and bought a dress for 5 1/2 dollars and a skirt for 2 3/5 dollars/ If she paid for the clothes with a $20. how much money did she have left? how do i solve this problem using models

    asked by Tonya
  212. Algebra II

    A coin jar contains 3 pennies, 8 nickels, 6 dimes, and 5 quarters. If a coin is chosen at random, what is the probability of choosing a dime? a) 8/11 b) 3/8 c) 3/22 d) 3/11 So I'm confused. I solved this, but my answer was 6/22 --> 3/12 --> 1/4 (this being

    asked by Nina
  213. Math

    Two students are playing a math game. The object of the game is to make the least possible number by arranging the given digits inside value bars on a card. In the first round, each player will use the digits 3, 5 and 7 to fill in the card. One student

    asked by Trevor
  214. Counting and Probability

    How many 2-letter "words" consist of two different letters arranged in alphabetical order? (Any two letters together is considered a "word." For example, one such word is dq.)

    asked by Mr. Alexander
  215. humanity

    Which of the following statements regarding postmodern art is true?

    asked by Which of the following statements regarding postmo
  216. Counting and Probability

    In how many ways can 4 boys and 4 girls sit around a circle table if all the boys sit together? (Rotations of the same arrangement are still considered the same. Each boy and girl is unique, not interchangeable.)

    asked by Mr. Riland
  217. math

    Of the 34 students in a class, there are 2 fewer students with blue eyes than there are students with hazel eyes. Also, there are twice as many students with brown eyes than there are students with blue eyes. Which of these is either the number of students

    asked by jim
  218. math

    jonathan purchases calculators for his math club after school. the total cost (t) is $325 for 25 calculators (c). what is the equation that represents this proportional relationship

    asked by enmanuel mejia
  219. Maths Lit , Business Studies , Geography , Tourism

    I'm in grade 12 I just want to know which courses will I take in Varsity

    asked by Linothando
  220. Biology

    What are good ways to remember what the Cytoplasm, Golgi apparatus, vesicles, etc do? I have a hard time remembering all the cell organelles

    asked by Geo
  221. Social Studies | Check my work

    Multiple Choice: 1.) What document signed in 1689, later inspired the creation of the American Bill of Rights? a.) the Magna Carta b.) the English Bill of Rights c.) the Pennsylvania Constitution d.) the Navigation Acts. 2.) How did England view its North

    asked by Abz
  222. computer science

    5. Calculation of tax in Ruritania In a fictitious country of Ruritania, which is in a fictitious continent called Afrisia, the tax system is highly simplified. They have system where all taxes are converted to one single value and then the tax is applied

    asked by Bofelo
  223. Pertunia msimango

    What kind of career should ifollow if i study,hitory.geography,lifesience,life orientation and english

    asked by Pertunia msimango

    Estimate 14.16÷6.82

    asked by Sherwanda
  225. English

    How does the interaction between waverly develop over the course of the passage "rules of the game."

    asked by B
  226. Math

    Dylan plants grass in a rectangle space behind the clump house.nthe area of the space was 70 ft. If the length of the space is 14 ft. What's the width of the space

    asked by Dylan
  227. Chemistry

    Calculating theoretical yield and percentage yield from preparation of 4-acetoxybenzoic acid from the interaction of 4-hydroxybenzoic acid and sulphuric acid

    asked by Andrew
  228. Social Studies

    Wat r 10 facts u didn't know about the Atlanta Campaign

    asked by katie
  229. Physics

    When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 69.3-kg man just before contact with the ground has a speed of 6.94 m/s. (a)

    asked by john
  230. math

    Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. \frac{r^{5}s^{3}}{rs^{2}}

    asked by Claire
  231. Physics

    If an Indian was to drive a 875kg buffalo over the edge of a 33 meter cliff with a horizontal velocity of 8.75 m/s, how far from the base of the cliff would the buffalo land?

    asked by Mackenzie
  232. physical education

    what is coasting in a 100m race

    asked by Thabiso kebafithetse
  233. Math 6-7

    What is the definition of prime factorization?

    asked by Versace