Questions Asked on
September 6, 2012

  1. engineering

    a particle falling under gravity falls 39m in certain second find time required to cover the next 30 m take g=9.8

    asked by Anonymous
  2. math

    Mary wants to place tiles in a room 3feet by 8feet. each tile cost $5.00 per squarefoot. how much

    asked by cheyinne
  3. physics

    (a) daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 4-0.0 m/s (14-4- km/h), How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and

    asked by Anonymous
  4. Chemistry pls help!!

    A 32mL solution of 2.7M NaCL is mixed with 83mL of 1.8M HCL. What is the molaritt of the CL in the new solution. Thank you for your help

    asked by Kate
  5. Math

    what does -1 E-4 mean when you write it out?

    asked by David
  6. Science

    Which statement about scientific question is true? a. Scientific Questions should avoid bias or b. Scientific Questions should be as general as possible

    asked by Sunny
  7. Science

    What is the purpose of a control group in an experiment? a. To serve as a standard of comparison or b. To be the group exposed to changes in the manipulated variable

    asked by Sam
  8. math

    Two bulldozers clear homes from a 20-acre tract of land. One works twice as fast as the other. It takes them three days to clear the tract working together. How long would it take each of them alone? whats the equation?

    asked by sara
  9. Chem

    What is 1250.37986 with 3 significant figures?

    asked by Amanda
  10. chem.

    What is the total pressure in of a gas mixture containing argon gas at 0.25 , helium gas at 385 , and nitrogen gas at 345 .

    asked by katy
  11. math

    limit (x-9)/(sqrt(x))-3 as x-->9

    asked by veronica
  12. chemisty

    Calcium carbonate can be decomposed by heating according to the equation Below. WHat is the percentage yield of calcium oxide in this reaction if 12.6g of CaO is obtained when 25.9g of CaCO3 is heated ? CaCO3(S) -> CaO (s) + CO2 (g)

    asked by blah
  13. Math

    A security camera needs to be set so that its angle of view includes the area from a doorway to the edge of a parking lot. The doorway is 16m from the camera. The edge of the parking lot is 24m from the camera. The doorway is 28m from the edge of the

    asked by Danielle D
  14. math

    Noah and Brianna want to calculate the distance between their houses which are opposite sides of a water park. They mark a point, A, 120m long the edge of the water park from Brianna's house. The measure

    asked by Danielle D
  15. math

    Diana designs stained-glass windows. She has a large supply of square glass window panes. Some panes are yellow, and some panes are red. She wants to place them in windows that are 3x2 in such a way that no two windows are the same, even when the design is

    asked by Zonne
  16. math

    I have fewer ones than tens. the value of my tens is 30. what two numbers can i be

    asked by Squirrel
  17. finance

    A manufacturing company issues a bond with a 100,000 face value and a coupon rate of 7%. If the bond has a life of 30 years, pays annual coupons, and the yield to maturity is 6.8%, what percentage of the bond's price is the present value of the face value?

    asked by chris
  18. finance

    The bonds of company A, carry a 10% annual coupon, have a 100,000 face value, and mature in 4years. Bonds of equivalent risk yield 7%. What is the market price of Company A.

    asked by Raph
  19. Science

    How may 1.5 Liter water capacity diving cylinders can I fill to 200 bar from a 50 liter water capacity storage cylinder filled to 200 bar,leaving 25 bar in the storage cylinder, using a booster pump?

    asked by John
  20. Physics

    A swimmer heads directly across a river, swimming at 1.10 m/s relative to the water. She arrives at a point 60.0 m downstream from the point directly across the river, 80.0 m wide. What is the speed of the river current? What is the swimmer's speed

    asked by Sara
  21. math outl

    for #2 so for range its; 27 -(-6)= 33 right? for quest 3 The numbers are: (yes 2 is listed twice) 2, 1, -1, 2, 0 , -2, 4, 0 for mean is it: 6 divide by 8 = .75 for median is it: 0 and 1 as median so 0 + 1 = 1 divide by 2 = median of : .5 for mode: 2 for

    asked by marko
  22. math pls check

    find mean,median, mode, range: for folloiwng numbers: 5, -2, 27, -6, 0 , 2, 11, 4, -2, 3 i got : mean: 4.3 median: 2.5 mode: no mode range is it; 27 -(-6)= 33 right? for quest 3 The numbers are: (yes 2 is listed twice) 2, 1, -1, 2, 0 , -2, 4, 0 for mean is

    asked by marko
  23. math

    write the first two equilant fraction of 3/7

    asked by anila
  24. chemistry

    What is the density of a substance that weighs 500g and fills a container that is 1/2 liter in size?

    asked by Devin
  25. Review memoir

    Could you review this small memoir I did for english class? Please check if there are any grammar mistakes! Also, if there is any way I could fit in more detail, feel free to share where and how i should! Thank you SO Much. Also, I need a title! You’re

    asked by Bryce
  26. Linear Algebra

    Show that the functions (c1+c2sin^2x+c3cos^2x) form a vector space. Find a basis of it. What is its dimension?

    asked by diamon
  27. earth

    how long will it take Uranium-238 for there to ne 25% of the original radioactive period to be left? i need this question answered ASAP!!!!!(:

    asked by melinda
  28. physical

    a crate rest on a ramp that makes an angle of tangent with the horizontal.the coefficient of kinetic friction is 0.35 and the coefficient of static friction is 0.45.the inclination of the ramp is slowly increased.(a)find the angle at which the crate starts

    asked by kim
  29. Chemistry

    If a procedure calls for 2mL of a concentrated nitric acid, what are the mass and moles of the HNO3 actually used in the reaction?

    asked by Dem
  30. Business- Labor

    how sympathetic are you to the statement of a former general motors chairman that offering a union leader a seat on GMs board of directors made "as much sense as having a member of GM's management sitting on the board of an international union?" Explain. I

    asked by allen
  31. Physics

    Consider the mechanical system with three degrees of freedom. The positions of the particles are measured from their equilibrium positions. The system has a normal mode eigenvector |13.98| | b | |13.98|. If all particles start from their equilibrium

    asked by Anonymous
  32. Math/Geometry

    If 2x=20, does x=10?

    asked by Ashley
  33. writing

    I need help wording my thesis. My idea is..if a man was to catch someone beating his daughter, is it legal to kill him? But I need a thesis statement not with that specific scenario...if you know what I mean....please help! ((My book is Murder on The

    asked by Chelsea
  34. Math

    Evaulate each expression: (-1/8)^1/3 Would you make it 3 square root of -1/8? I don't know how to go from there. (256/81)^1/4 Same thing, would it become 4 square root (256/81)?

    asked by kelly
  35. Health care admin.

    How can health care providers work together within the continuum of care?

    asked by April
  36. Math

    Show that the inverse function of y=x^2-2x+5, x≥1 is f^-1(x)=1+√x-4 Help me please i've been stuck on this question for a few hours and i've lost hope. argh.

    asked by Cathy J
  37. math

    1/3 1/4 .035 13% least to greatest

    asked by Anonymous
  38. writing thesis

    So, thanks for the help to those who answered my last question. My book is Murder on The Orient Express by Agatha Christie, and I need a thesis for it. In the book, a man is murdered by a grieving family, because he killed their daughter. I want to do my

    asked by Chelsea
  39. Statistics

    (TCO A) Consider the following age data, which is the result of selecting a random sample of 20 United Airlines pilots. 47 45 45 52 58 55 58 44 42 38 45 52 48 47 51 45 52 42 37 40 a. Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, Max

    asked by Pat
  40. physics

    Find a vector of magnitude 18 which is perpendicular to both the vectors 4i^-j^-3^ and -2i^+j^-2k^.

    asked by Simar
  41. physics

    A 0.33- kg pendulum bob is attached to a string 1.2 m long and hangs vertically as shown in Figure 1. What is the change in the pendulum bob’s gravitational potential energy as it swings from the lowest point of the pendulum to a point that is 35 degree

    asked by farah
  42. chemistry

    Zn salts are colour less.Why?

    asked by Janvi
  43. math

    (a) Complete the square by writing in the form . Note: the numbers and can be positive or negative. x^2-14x-17=(x-7)^2+ (b) Solve the equation by completing the square or using the quadratic formula. If there is more than one correct answer, enter your

    asked by Anonymous
  44. chemistry please help

    What is the total pressure in of a gas mixture containing argon gas at 0.25 , helium gas at 385 , and nitrogen gas at 345

    asked by katy
  45. English 11

    Who did Thomas Paine write Common Sense to? Revolutionary War soldiers. colonists in 1776, prior to the signing of the Declaration of Independence. (I chose this one) the British monarchy. women seeking the right to vote

    asked by Panda
  46. law/421

    What actions would you propose to eliminate or minimize the impact of the torts

    asked by at
  47. physics

    A 2 kg block situated on a rough incline surface (θ= 37o) and is connected to a spring with k = 100 N/m. The block initially at rest. The block moves 20 cm down the incline before stops. Find the coefficient of friction between the block and the surface.

    asked by charley
  48. Physics

    I am totally new to physics. We are working on summation of moments and I just am not grasping this. I know the formular is M=dF, but his does not help me. I get confused about the middle of settig of euation. I am never sure which distance I should be

    asked by Vic
  49. Physics

    Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour?

    asked by Matthew
  50. chemistry

    write a step by step procedure explaining how you will separate the sand, potassium chloride, and iron

    asked by erica
  51. Algebra 1

    Do the equations x = 4y + 1 and x = 4y - 1 have the same solution? How might you explain your answer to someone who has not learned algebra?

    asked by Austin
  52. physics

    c) A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has the speed of 29 m/s. Assuming that the air resistance can be ignored, find i. the initial speed of the

    asked by charley
  53. Physics

    Change A=55m 60 degrees

    asked by nt form of 60 degrees
  54. physics

    B. Assume the child is 1.2 meters tall and casts a shadow of 6.4 meters. Determine the angle of the sun at that moment.

    asked by Ana
  55. physics

    1. A child stands before a tall building and wants to know how high it is. She notices that it is a sunny day, so armed with a meter stick, the fact that she is 1.2 meters tall, and a knowledge of similar triangles, she proceeds to measure the building’s

    asked by Steph
  56. ENGLISH check

    1.When Thomas Paine writes about reconciliation, he is referring to the southern Colonies staying peacefully connected to the northern Colonies. the Colonies staying peacefully connected with Great Britain. the Colonists staying peacefully connected to

    asked by horre
  57. Physics

    A pitcher throws a 0.5kg ball of clay at a 6kg block of wood. The clay sticks to the wood on impact, and their joint velocity afterward is 3m/s. What is the original speed of the clay?

    asked by Lauren
  58. statistics

    The lifetime of a 2- volt non-rechargeable battery in constant use has a normal distribution of 516 hours and a standard deviation of 20 hours. What is the z- score for batteries with lifetimes of 520 hours?

    asked by Gee
  59. statistics

    The lifetime of a 2- volt non- rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z-score for batteries with lifetimes of 600 hours?

    asked by Gee
  60. physics

    A horizontal beam of electrons initially moving at 4.3 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates as shown in the diagram. The magnitude of the field is 1.90 104 N/C. What is the vertical

    asked by opp
  61. statistics

    I wish to determine the correlation between the height ( in inches) and weight ( in pounds) of 21 year old males. To do this , i measure the height and weight of two 21 year old men. The measured values are?

    asked by Gee
  62. MAth

    I keep getting -28/19 for this problem, but it doesn't check with the solution in the back of the book. Help please.. solve the equation 7d-(1/2)(2d-4)=(-5/4)(d+4)

    asked by Anonymous
  63. History

    Differentiate the theory of Social Dariwinism and the Gospel of Wealth.

    asked by Mindy
  64. maths

    a number consists of 2 digits whose sum is 8,if 18 is added to the number its digits are reversed ,find the number?

    asked by anusuya
  65. statistics

    The data in the scatterplot below are an individual' s weight and time it takes ( in seconds) on a tredmill to raise their pulse rate to 140 per minute. The o' s correspond to females and the +'s to males.

    asked by Gee
  66. physics

    find n and m W=F^n d^m find n a=r^0v^n verify if they are equal to each other mgh=1/2mv^2

    asked by tasha
  67. physics

    For the one dimensional motion of an object along an axis, choose all the statements that are True. 1.) If the object reverses direction and goes the opposite way, the sign of the velocity changes. 2.) If the acceleration has the opposite sign than the

    asked by JJ
  68. math

    suppose that you roll a pair of 8-sided dice total of 51 times. what is the probability that you will get a sum of 5 at least 3 times

    asked by bridget
  69. statistics

    The ABC Company has been evaluating the performance of two advertising agencies it deals with. They produce the following scatterplot of sales against advertising expenditures.

    asked by Gee
  70. Ap Chemistry

    An ore contains Fe3O4 and no other iron. The iron in a 60.67 gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 36.1 grams. What was the percent Fe3O4 in the sample of ore? Answer in

    asked by Karen
  71. statistics

    I want to examine the relationship between gas mileage of cars and the engine size ( displacement in cubic inches). The explanatory variable is?

    asked by Gee
  72. Ap Chemistry

    Sulfuric acid is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned: S + O2 yields SO2, then it is converted to SO3 using a catalyst: 2SO3 + O2 yields 2SO3. The resulting

    asked by Chasm
  73. statistics

    I want to examine the relationship between gas mileage of cars and the engine size ( displacement in cubic inches). The explanatory variable is?

    asked by Gee
  74. physics

    how presence of two eyes help in binocular vision in our daily tasks?

    asked by TUHITUHI
  75. physics

    how can we see image of an object? explain the mechanism?

    asked by TUHITUHI
  76. Language Arts

    1. "Outstanding" is a compound word. Think about what its two parts, "out" and "standing" mean. What does "outstanding" most likely mean? a. exceptional b. obvious c. standing outside d. tall To answer questions 2 and 3 identfiy whether the capitalized

    asked by Yoda
  77. Math

    An object is thrown from the top of an 80 foot building with an initial velocity of 64 feet per second. The height (h) of the object after (t) seconds is given by the quadratic equation h=-16t+64t+80 .When will the object hit the ground?

    asked by Medusa.
  78. algebra 1

    Do the equations x = 4y + 1 and x = 4y - 1 have the same solution? How might you explain your answer to someone who has not learned algebra?

    asked by Austin
  79. Algebra2

    HELP? f = (1, 2), (2, 3), (3, 4), (4, 5), g = (1, -2), (3, -3), (5, -5), and h = (1, 0), (2, 1), (3, 2), Find the following and state the domain?! 2a.f+g 2b.f-g 2c. f*g 2d. f/h 2e. G o F o h

    asked by unknown
  80. GEOGRAPHIC

    The statement, "Farmers in this area benefit from a long growing season" describes what type of region?

    asked by Anonymous
  81. GEOGRAPHIC

    What do geographers call areas whose residents share a common characteristic

    asked by Anonymous
  82. chemistry please help i cant figure this out

    What is the total mmHg pressure in of a gas mixture containing argon gas at 0.25atm , helium gas at 385mmHg , and nitrogen gas at 345torr. ? sorry i didn't relize i left them out.

    asked by katy
  83. biology

    A water molecule is held together by two single polar covalent bonds true or false?

    asked by Anonymous
  84. english

    List 2 characteristics of a frame story and explain how one of the stories you read demonstrates these characteristics. I think what a frame story is a story within a story. Am I right? I've read the following stories: - The Canterbury Tales (The

    asked by Miya
  85. health

    What is the ultimate duty of the reproductive system? A. Menstruation B. Development of sex organs C. Reproduction D. Cell regeneration c?

    asked by Anonymous
  86. malcolm x collwege

    how many liters of 0.542 are ml

    asked by tawana
  87. english

    Choose one archetype that is illustrated by two or more of the stories you have read, and write a brief essay on what archetype you’ve chosen to discuss, and how the archetype is demonstrated in at least two different pieces of literature you’ve read.

    asked by Miya
  88. math

    An object is dropped from 39ft below the tip of the Petronaas Twin Towers in Kuala Lumpur, Malaysia. The height h of the object after t seconds is given by the equation h=-16t+1444. Find how many seconds pass before the object reaches the ground.

    asked by Medusa.
  89. physics

    A Cessna aircraft has a lift-off speed of 120 km/h. What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 265 m? Answer in units of m/s2 b) How long does it take the aircraft to become airborne?

    asked by an
  90. International Relations POL355

    War typically results from (Points : 1)

    asked by Anonymous
  91. calculus

    Find a delta for any epsilon given: x^2+x-6/x+3 and x0=-3

    asked by erica
  92. calculus

    Find the limit if it exist lim t-->pi/3 (tan(t)/t)+1

    asked by erica
  93. Physics

    A plane is flying 126 m/s east relative to the air. The wind is blowing 32 m/s south relative to the ground. Determine the plane's velocity relative to the ground. Velocity (relative to the ground) magnitude = Velocity (relative to the ground) direction =

    asked by Cindy
  94. Physics

    A g (pronounced "gee") is a unit of acceleration. Notice it is italicized. This is so it won't be confused with g (grams). 1 g = 9.8 m/s2. Typically a person will black out if they experience an acceleration of 4 to 6 g for more than a few seconds.

    asked by Cindy
  95. Physics

    A projectile is fired up into the air at a speed of 164 m/s at an angle of 37° relative to the horizontal. Ignore air drag. A.) Determine the MAXIMUM HEIGHT (above where it was thrown) the projectile will reach. m B.) Determine how LONG the projectile

    asked by Cindy
  96. physics

    A child standing on the edge of a sheer cliff wall throws a rock down towards the ground below. The rock is thrown 67° below the horizontal at a speed of 22 m/s & lands 43 m from the base of the cliff wall. Ignore air drag. A.) Determine how long the rock

    asked by Cindy
  97. 7th Grade Science

    when the temperature is constant the volume of a gas will decrease as the pressure decreases. True or false

    asked by completeidiot
  98. Math (Geometry)

    What is the midpoint of line BC with B (2,0) and C (-4,6)?

    asked by Chris
  99. Math Help Plz

    By graphing estimate to two decimal places the following limit.What is the limit of f(x)=(1+x)^(1/x)as x approaches 0

    asked by Shayna
  100. Math

    Pages in a book are numbered in typical fashion, starting with 1. The folio for page 10 will contain the tenth and eleventh digits necessary to paginate the book. On what page will the 2009th digit occur?

    asked by Mark
  101. social studies

    i am leaving west and going east

    asked by mahogany
  102. Chemistry

    I need help with part b here's all information. (a) Chlorine gas is added to a glass cylinder of 2.5 cm in radius, fitted with a movable piston. Gas is added until the piston is lifted 5 cm off the bottom of the glass. The pressure on the gas is 1 atm, and

    asked by Angie
  103. math, physics

    A. A rectangular slab of concrete is cut from a large block. The slab measures 10.4 inches thick, 1.8 feet long, and 0.0021 miles wide. Find its volume in cubic feet.

    asked by Steph
  104. math

    how to do 2 1/4 + 2/6

    asked by nocla
  105. Chemistry

    Does Air Have Hydrogen as one of its components? i think it is but with a very low amount ... i need explanation please why or how? since hydrogen is flammable nd all!!

    asked by 09876
  106. World History

    What factor led the English to attempt to kill off entire Native American peoples? A. Native Americans provided a good labor source for the Spanish. B. Native Americans had vast wealth to exploit for tribute. C. The Native Americans' large populations were

    asked by Elle
  107. writing thesis

    So, I need a thesis statement for a research paper for Murder on the Orient Express. (Sorry to keep posting a new question each time) But I've thought about the answers you guys have given me and I'm thinking something along the lines of: "In certain

    asked by Chelsea
  108. math

    A rectangular slab of concrete is cut from a large block. The slab measures 10.4 inches thick, 1.8 feet long, and 0.0021 miles wide. Find its volume in cubic feet.

    asked by Tyler
  109. HCS/451

    What criteria should Healthcare organizations use to prioritize regulartory requirements. I just need to find information on this part of the DQ.

    asked by TERESA
  110. college calc

    Give a formula for the function illustrated using a vertical shift of an exponential function. The two points marked on the graph are A=(−1,17) and B=(1,2). The red horizontal line is given by y=1, and is a horizontal asymptote of the function. What is

    asked by harry
  111. Math

    Write the multiplication/division fact family for 2,7,14

    asked by Mike
  112. math

    1. Which exponent makes the statement true? 1/5^9 = 5^? a. 9 b. -9 c. 1/9 d. - 1/9 2. y^5 x y^14 = a. 2y^19 b. y^60 c. y^19 d. 2y^60 3. w^12/w^18 = a. w^30 b. w^-30 c. w^6 d. w^-6 5. 5^5/5^2 = a. 5^1 b. 5^2 c. 5^3 d. 5^4 Please help me this is all like

    asked by Nyla
  113. Algebra

    Do the equations x = 4y + 1 and x = 4y - 1 have the same solution? How might you explain your answer to someone who has not learned algebra?

    asked by Theresa
  114. Natural Vs. Synthetic Products

    Proofread please?:) Natural vs. Synthetic Products By: Bryce Romig Have you ever heard the quote "Beauty is only skin deep"? The fact of the matter is, beauty is more than skin deep. Everyday people all over the word are rubbing harsh chemicals all over

    asked by Bryce
  115. Physics

    In a 100 m linear accelerator, an electron is accelerated to 1.40% the speed of light in 35.0 m before it coasts 65.0 m to a target. (b) How long does the total flight take?

    asked by Avery
  116. Finance

    A Treasury note with a maturity of four years carries a nominal rate of interest of 10 percent. In contrast, an eight-year Treasury bond has a yield of 8 percent. a. If inflation is expected to average 7 percent over the first four years, what is the

    asked by vincent
  117. thesis!

    Do either of these sound like a thesis statement to you guys? For the book Murder on the Orient Express. 1) There are situations, though rare, that homicide is considered justified. 2) There can be certain situations that a murder is considered a justified

    asked by Chelsea
  118. reading

    What is a question with a word with the root sid, sed, sit, or sedat?

    asked by jes
  119. math

    20.007 in expanded form

    asked by James
  120. physics

    how do i make a velocity vs. time graph? i have a graph of acceleration vs. time and i am told to find distance between a certain amount of time and i was told to make a graph. is there any other way to find distance or is the velocity vs. time graph

    asked by JJ
  121. physics

    A penny is dropped from rest from the top of the Trump Tower in New York City. Considering that the height of the building is 283 m and ignoring air resistance, find the speed with which the penny strikes the ground.

    asked by lennox
  122. physics

    From her bedroom window a girl drops a water-filled balloon to the ground, 4.7 m below. If the balloon is released from rest, how long is it in the air?

    asked by lennox
  123. algebra

    Jim is paid for overtime when he works more than 40 hours per week. Write an expression for the number of hours he works overtime when he works h hours.

    asked by Alex
  124. physics

    From the top of a cliff, a person uses a slingshot to fire a pebble straight downward, which is the negative direction. The initial speed of the pebble is 9.0 m/s. (a) What is the acceleration (magnitude and direction) of the pebble during the downward

    asked by lennox
  125. physics

    While standing on a bridge 45.0 m above ground, you drop a stone from rest. When the stone has fallen 3.80 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by lennox
  126. math

    Create an input output machine with the rule split in 2

    asked by iyanna
  127. civics

    what is the term referring to the hope of a better life for everyone

    asked by Evelynn
  128. Math

    Which of the following shows the prime factoriztion of 250 using exponents? A.2x 5 3 B.2 5x 5 5 C.5 2x 10 D.5 2x 2 5 A?

    asked by ♫♫Colton♫♫
  129. Physics

    Suppose that an environmental study determines that a town produces approximately 2,000 lb of trash each day. The study group decides to convert their findings to SI units, using the conversion 1 lb = 0.4536 kg. They report that the town produces 907.2 kg

    asked by Kevin
  130. Chemistry

    A sample of 2.00 mol O2 (assumed perfect) is originally confined in a 20.0L at 273K and 2.24 atm. it undergoes reversable adiabatic expansion until the volume has increased by a factor of 3. Calculate q, w, delta u, delta h, and delta t. Cv=7/2R and

    asked by Erica
  131. Geometry

    Find the perimeter of a square with sides 10 feet long?

    asked by Meghan
  132. Social Studies

    To survive in different areas, native people had to learn to?

    asked by Cassandra
  133. College Finite

    Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens. In how many ways can the selection be made if no more than one ball point pen is selected?

    asked by Devin
  134. Math

    Identify the pattern in each arithmetic sequence and then find the missing terms. 45,38,31,24, _ ,_

    asked by Shion
  135. math

    1. Which exponent makes the statement true? 1/5^9 = 5^? a. 9 b. -9 c. 1/9 d. - 1/9 2. y^5 x y^14 = a. 2y^19 b. y^60 c. y^19 d. 2y^60 3. w^12/w^18 = a. w^30 b. w^-30 c. w^6 d. w^-6 5. 5^5/5^2 = a. 5^1 b. 5^2 c. 5^3 d. 5^4 Please help me this is all like

    asked by Yoda
  136. chemistry

    A typical adult body contains 55 water. If a person has a mass of 61 , how many pounds of water does she have in her body?

    asked by courtney
  137. Easy Mathematics Lesson 1-1

    A principal has 144 computers for 24 classrooms. Which of the following is a factor of 24? A. 6 B. 7 C. 120 D.144

    asked by Ms.Sprage
  138. Math 8R - HW Qs. Check

    1) One hundred forty-eight swimmers started a race. Nineteen stopped the race because of cramps. Twelve dropped out because of sunburn. Seventeen did not finish due to fatigue. How many finish the race? 148 - 19 = 129 129 - 12 = 117 117 - 17 = 100 My

    asked by Laruen
  139. Math 8R Qs. Help!!!!!!!!!

    Fill in the numbers to continued the pattern. 250, 245, 235, ____, 200, 175, _____, _______ 250 - 245 = 005 245 - 235 = 10 The number between 250 - 245 is 5, since the answer is 5 and the number between 245 and 235 is 10. Please help me, I'm really

    asked by Laruen
  140. math

    a pumpkin has a mass of 4.8 kilograms. if 0.9 of its mass is water how much of its mass is water? how much is not water?

    asked by shayan
  141. math

    read the clues to find each number. it is a 7 digit number. it has a 0. the greatest digit is in the hundered thousands place. the value of the digit 1is i,000,000. the digit 6 stands for 6,000. the value of the digit 5 is 5 ones. the digit 8 has a value

    asked by Winnie
  142. math

    eddie is thinking of a number between 149,000 and 150,000 his number has a tens digit that is 7 more than its ones digit. The sum of the tens and ones digit is 9 the sum. the hundreds digit is 0 what is eddies number

    asked by john
  143. Physics

    Would someone please check my work ands let me know if I am right? (We are going to do this as a group but I'd like to attempt it on my own first.) Thank you! Suppose a soccer player kicks the ball from a distance 30 m toward the goal. Find the initial

    asked by Miaow
  144. Math 8R - HW Qs. Check

    Fill in the numbers to continued the pattern. 1000, 900, 700, 400, ____, -500, _____ My Answer - 1000, 900, 700, 400, 0 , -500, 1000 1000 - 100 = 900 900 - 200 = 700 700 - 300 - 400 400 - 400 = 0 0 - 500 = -500 -500 - 600 = -1,100 Is my answer is

    asked by Laruen
  145. Physics

    The car in the figure below travels a distance of 745 m along the track, and the driver finds that she has traveled through an angle of 475°. What is the radius of the track?

    asked by Anne
  146. English

    I have to do oral presentation tomorrow representing who I am. i have to bring in 4 things or 4 words to class. The first thing has to be something that represents me, the second thing has to be something that represents my family. the third thing has to

    asked by Dalpreet
  147. Physics

    Suppose you are asked to determine the perimeter of a seven-sided irregular figure. You make the following measurements: Side 1 = 3.2 m Side 2 = 4.8 m Side 3 = 2.000 m Side 4 = 8.94 m Side 5 = 11 m Side 6 = 7.566 m Side 7 = 4.0 m How many significant

    asked by Kevin
  148. history

    During the tubulence of the 1960s black activism focused primarily on

    asked by jerry
  149. Honors Geometry

    Topic: Distance in Coordinate Plane Determine the value(s) of n if... J(n, n+2), K(3n, n-1), JK=5

    asked by Tracey
  150. math

    How do you write805tens using the place value

    asked by Javione
  151. math

    jones put 2.5 kilograms of wter into a 1.2 kilogram bucket How much does the bucket weigh now ?

    asked by victoria
  152. American government

    As distinct from civil law, criminal law is law that defines a relationship: a: between individuals b: between governments c: between individuals and government d: beween citizens and non-citizens I choose B. I have read and read my text. I'm I on the

    asked by NeNe
  153. 3rd math

    okay Math genius! Help me out here. I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is 1 more than my hundreds digit. What number am I?

    asked by Allison
  154. grammar

    what is the simple predicate in the sentence... They will use a compass on the hike.

    asked by hsus
  155. STOR

    Each of the following statements contain a blunder. Explain in each case what is wrong. a) There is a high correlation between the age of American workers and their occupation. b) we found a high correlation (r=1.19) between students rating of faculty

    asked by ami
  156. math

    what is the volume of a rectangular prism 5.0cm long, 3.8cm wide and 2.7cm high?

    asked by brianna
  157. math

    if a vase is a cube that has a side of 7 inches how much water will it hold

    asked by malik
  158. algebra

    how many different four digit numbers can be obtained by using all four of these digits 5,1,1,5 show work please

    asked by ben
  159. calculus

    polynomial equation with intercepts (-3/2,0) (1,0) (5/2,0) (0,4/3)

    asked by Johnny Gordon
  160. calculus

    polynomial equation with intercepts (-3/2,0) (1,0) (5/2,0) (0,4/3)

    asked by Johnny Gordon
  161. Physics

    a steel ball drops onto a thick steel plate. its speed just before it hits is 10 m/s and it rebounds with a speed of 9 m/s. what percentage of its kinetic energy did it lose during the collision? what would you expect its speed to be after the second

    asked by Megan
  162. Physics

    A golf ball, dropped from 2 meters above a floor, rebounds to a height of 1.6 meters. What percentage of its energy of motion is lost in the collision with the floor?

    asked by Sandy
  163. Physics

    A roller coaster starts from rest at the top of a steep incline. As it falls, should its velocity depend on how many riders are aboard? Use net work= change in kinetic energy to prove your answer.

    asked by Sandy
  164. math

    how many two digit numbers can be made using only these digits 2,4,6,8 show work and explain

    asked by Anonymous
  165. Chemistry

    Hydrated copper sulfate is heated. Using the speculative chemical equation CuSO4*5H2O-->CuSo4+5H2O, show how you could have predicted, by calculations, what the final weights in the crucibles might be. Show calculations for two starting weights between 1

    asked by Paige
  166. math

    An ant is at the bottom of a 12-foot deep well and is trying to get to the top. During the day he climbs 4 feet IP up, but at night he slides back 2feet. How long does it take for him to get out of the well?

    asked by tanaura
  167. math

    how many ways can a,b,c,d be seated in a row of 4 chairs (no repeats)

    asked by susy
  168. Math

    what is the answer to 3x10=(2x10)+(1x__)

    asked by Liliana
  169. English 4

    Which of the following most distinguishes an epic from a mock epic? A. its subject matter B. its style C. its vocabulary D. its length I'm thinking its B.

    asked by Leah
  170. english

    All of the following statements about reading skills are true EXCEPT A. Different activities require different types of reading. B. It is not always necessary to perform a thorough reading. C. It is best to use skimming when you look for specific

    asked by jeet
  171. General

    This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and

    asked by Samantha
  172. math

    fred is thinking of three numbers. if they are added in pairs, the results are 34, 44 and 52. find the three numbers.

    asked by yanyan
  173. ela

    why you argee? this statement. about univesity kids: the top 20 percent are great. they re smart and self directed and they'll anywhere. then there are the rest. they don't know much. I need to write some lines why i agree please give some ideas to start

    asked by anu
  174. math

    Morgan company received from Lee company an invoice dated September 27.Terms were 2/10 EOM.List price on the invoice were $ 5, 000(freight not included). Morgan received a 9/7 chain discount. Freight charges are Morgan’s responsibilities but Lee agreed

    asked by sabina
  175. math

    the greatest place value is hundred thousands. The digit in the tens place is 5. the remaining digits are 2, 3, 8, and 7. One of the digits has a value of 800. the value of the digit in the thousands place is 10 times greater than this. There are

    asked by skylar
  176. math

    The length of the longest loaf bread measured 1.405 ft 1 1/2 in. It was cut into slices 1/2 in.think. how many slices were there?

    asked by lucy
  177. Math (Please help immediately)

    The measure of one angle is three times the measure of its complement. Find the measure of each angle.

    asked by C
  178. Physics

    The helicopter in the drawing is moving horizontally to the right at a constant velocity. the weight of the helicopter is W = 53800 N

    asked by Anonymous
  179. math

    a man rows downstream for one hour and 40 minutes on a river flowing at 2 miles per hour. on his returned trip he rows upstream for 5hours. find the distance that he traveled downstream and his speed of rowing in still water.

    asked by yanyan
  180. math

    Explain which operation you would do first in the expression47- (17+12

    asked by nyra
  181. Math (Please help immediately)

    Two angles form a linear pair. The measure of one angle is 8 times the measure of the other angle. Find the measure of each angle.

    asked by C
  182. math (immediate help please)

    how many different four digit numbers can be obtained by using all four of these digits 5,1,1,5? show work please

    asked by ben
  183. Math (Please help immediately)

    Last one I need help on: The measure of one angle is 38 degrees less than the measure of its supplement. Find the measure of each angle.

    asked by C
  184. Physics

    While standing on a bridge 45.0 m above ground, you drop a stone from rest. When the stone has fallen 3.90 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by Marie
  185. Physics

    While standing on a bridge 45.0 m above ground, you drop a stone from rest. When the stone has fallen 3.90 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

    asked by Marie
  186. math

    they agree to share the cost of pizza based on the portion they ate. she ate 2/3 of his portion. what does the equation look like

    asked by Anonymous
  187. chemistry

    if 25.00 mL of 1.04 M Na2CO3 is diluted to .500 L, what is the molarity of Na2CO3 in the diluted solution?

    asked by England
  188. algebra

    How do you Simplify

    asked by Allison
  189. Algebra

    construct a number that has factors of 5,4 and 6 but not 15

    asked by Gabriel Ortiz
  190. physics

    A speed skater moving across frictionless ice at 8.70 hits a 4.20-m-wide patch of rough ice. She slows steadily, then continues on at 5.90

    asked by Anonymous
  191. Chemistry

    Calculate the temperature at which k = 2.0 s-1 if k = 10.0 s-1 at 371 K. The activation energy for the reaction is 30.0 kJ mol-1.

    asked by Amber
  192. Chemistry

    In solution, hypochlorite ion is known to decompose with a second-order rate law. If [ClO-]0 = 0.0570 M and k = 2.06x10-4 M-1·min-1, calculate the half-life for this reaction 2ClO-  2Cl- + O2.

    asked by Amber
  193. math

    a cylinder is 150ft3ed what is the volume of a cone with the same radius and height?

    asked by taliah
  194. aglebra 2

    determine whether the equation has one solution, no solution, or is an identity. 5y+3=26

    asked by jess
  195. Math

    The car in the figure below travels a distance of 745 m along the track, and the driver finds that she has traveled through an angle of 475°. What is the radius of the track?

    asked by Anne
  196. Math problem

    I am a 2 digit number , I have more tens than ones, I rounf to 50 , the number in my ones place is the sum of 3. What is my number?

    asked by norma
  197. math

    Give answer in factored form. (5x)/(x^2-81) times (x+9)/(25x) I got 5x(x+9)(x-9)...?

    asked by shelly
  198. math

    sorry but i am having a hard time trying to figure out how to write a number in standard equation could any one help me

    asked by claries
  199. Math (Please help immediately)

    Last one I need help on: The measure of one angle is 38 degrees less than the measure of its supplement. Find the measure of each angle.

    asked by C
  200. science

    1. Plants and other organisms such as green algae can produce their own energy in a process called _______. 2. The process of changing radiant energy into chemical energy is called ______. I think that both answers are "photosynthesis". However, two same

    asked by v.
  201. 7th Grade Science

    Explain why increasing the temperature of a gas in a closed, rigid container causes the pressure in the container to increase.

    asked by completeidiot
  202. estimating

    how does estimating help add 2 digit numbers

    asked by Anonymous
  203. math7th

    28a^11b^7 divided by 4a^3b^2

    asked by Joseph
  204. Math

    I need to solve this set of differential equations {y'+(t/2)1, y(0)=1} and then find the limiting value as t approaches infinity. I'm not sure where to start. I found the answer to the differential equation to be: y(t)=e^-t^2/4[e^(r^2/4)dr

    asked by Emily
  205. MATH

    x/2 + 11 = -25 x/4 - 5 + 13

    asked by Laura
  206. social studies(femist)

    Why do some women feel uncomfortable calling themselves feminist?

    asked by mary
  207. World History

    I need to find a weird or odd current event. Help me find a weird or odd news. Please post the link.

    asked by Anonymous
  208. Math

    State domain and range for f(x) = 2[x]

    asked by Bri
  209. math

    Rationalize the denominator: y divided by (square root of 6 + square root of y)

    asked by sarah
  210. math

    what is the quotient for 4/5 divided 3 equal?

    asked by christine
  211. math

    why did the little girl paint spots on the staircase? plz answer

    asked by Chris K
  212. English ms. sue

    ms. sue thanks for liking my ideas. for my peers, i told my mom about the phone, however she doesnt think that is something that relates to the title WHO AM I. that's why im unsure of what to put for that one.

    asked by Dalpreet
  213. physics

    A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 45.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 3.00 m/s^2. Including the

    asked by colby
  214. physics

    A bus makes a trip according to the position-time graph shown in the drawing. What is the average velocity (magnitude and direction) of the bus during (a) segment A, (b) segment B, and (c) segment C? Express your answers in km/h

    asked by Anonymous
  215. physics

    A cement block accidentally falls from rest from the ledge of a 52.0 -m-high building. When the block is 11.5 m above the ground, a man, 1.80 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to

    asked by grant
  216. phys

    A woman on a bridge 84.7 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 8.02 m more to travel before passing under the bridge. The stone

    asked by Emily
  217. math

    how do you find the dimensions for a rectangle that has 60 tiles?

    asked by marshall
  218. phys

    A pellet gun is fired straight downward from the edge of a cliff that is 28.5 m above the ground. The pellet strikes the ground with a speed of 26.1 m/s. How far above the cliff edge would the pellet have gone had the gun been fired straight upward?

    asked by Emily
  219. home economics

    definition of clothing and textiles

    asked by qwerty
  220. physics

    A hot-air balloon is rising upward with a constant speed of 2.22 m/s. When the balloon is 7.74 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

    asked by colby
  221. Physics

    An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 14.2 m/s and measures a time of 22.2 s before the rock returns to his hand. What is the acceleration

    asked by Meghan
  222. physics

    Suppose a car is traveling at +23.8 m/s, and the driver sees a traffic light turn red. After 0.351 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m/s2. What is the stopping distance of the car, as measured

    asked by gabe
  223. phys

    A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.30 m/s. The car is a distance d away. The bear is 32.9 m behind the tourist and running at 4.92 m/s. The tourist reaches the car safely. What is the

    asked by Emily
  224. Science, Chemistry

    What is the volume of 75.65 grams of zinc

    asked by Hannah
  225. physics

    One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.47 km. They start at the west side of the lake and head due south to begin with. (a) What is the distance they travel? (b) What is the magnitude of the

    asked by colby
  226. math

    eddie is thinking of a number between 149,000 and 150,000. his number has a tens digit that is 7 more than its ones digit. the sum of the tens and ones digit is 9. what is eddies number?

    asked by terrance
  227. Math

    Jim is paid overtime when he works more than 40 hours of per week. Write an expression for the number of hours he works overtime when he works h hours. Find the number of hours Jim works overtime when he works 40, 44, 48, and 52 hours

    asked by Joe
  228. quick question Eng

    is foresight a verb?

    asked by daniel's mom
  229. eng 4th grade

    we threw her a surprise party because it was her birthday. underline the cause and circle the effect cause: it was her birthday effect: we threw her a surprise party is this correct?

    asked by daniel's mom
  230. Math

    how do I figure out which slide has more slope if a slide is 1:4 and the other slide is 4:1

    asked by Mel
  231. english

    What is the scrambled word for simple predicates

    asked by Anonymous
  232. math

    A circular pol is to be built in a back yard. The yard forms a 40ft by 60ft rectangle. The pool will have a diameter of 29ft.

    asked by carmen
  233. Math

    A school cafeteria sells sandwiches for $4.50 each, cartons of milk for $1 and bananas for $.50 each. One table of students spent $36.00 total. They bought 2 more milks than sandwiches and they bought two times more sandwiches than bananas. How many

    asked by Paul M
  234. Math! I really need help!

    20y=17.5x How can I find x and y

    asked by Marie
  235. math

    2x^2+18x-20=0

    asked by chris
  236. Math/Finance

    Which formula do I use for the following question: Sheila Spinney borrowed $32,500 at 7.5% simple interest for 180 days on January 7. The bank later sold the note at an 8% discount on March 2. Find the proceeds to the bank.

    asked by Aniya
  237. Algebra

    This is not math related, but I will be gracious for your help. Solve the following alphabet puzzles. Examples: 26= L. in the A. Answer: 26=letters in the alphabet 54= C. in a D (with J). Answer: 54= cards in a deck( with the jokers$ 140=M N of C in a T

    asked by Anonymous
  238. social studies

    why is otzi the iceman important in terms of history

    asked by Josiah
  239. health

    The autonomic nervous system manages our ________. A. Heart rate B. Blood pressure C. Body temperature D. All of the above

    asked by susan
  240. Socisl studies

    How did moutain passes help settlers who were traveling to california?

    asked by Sarah
  241. Math

    If a pair of shoes are $21.50 and the dales tax it 6% what is the total cost

    asked by Ariyana
  242. Chemistry

    0.0158L of 0.25M HCL is needed to nutralize 22.0ml of a potassium hydroxide solution. Write the neutralization reaction then calculate the molar concentration of the KOH solution?

    asked by Donna
  243. math

    1. A 120-day simple discount promissory note for $12,000 with a simple discount rate of 9% was signed on July 14. It was discounted on August 30 at 9.5%. Find the proceeds at the time of the sale. 2. 8. A $15,000 T-bill is purchased at a 3.85% discount

    asked by Fellippe
  244. physics

    A stone is thrown upwards from the edge of a 5.3 m high cliff. It just misses the cliff on the way down and hits the ground below with a speed of 25.4 m/s. With what velocity (in m/s) was it released?

    asked by Anonymous
  245. math

    What is the answer to this number sequence 400 100 200 50?

    asked by christine
  246. physics

    3. A wheelchair ramp is to be rated at 8%, which means that it rises 8 cm for every 100 cm of horizontal distance. The height of the ramp is 35 cm. A.What is the length of this ramp? B.What is the angle this ramp makes with the horizontal? C.To what

    asked by Mr.T
  247. algebra

    answer to 6r-6-3=15

    asked by Mary
  248. Math

    Simplify the variable expression: 1. (13)(-x) My answer: -13x 2. (-4)(-x)^3(x)(-1/8) My answer: 1/2 • -3x I'm not sure about number 2. Thanks

    asked by Amy
  249. algebra 1

    George is driving at an average speed of 62 miles per hour. Write an expression that would give his distance traveled for h hours. Make a table that records his distance for 3, 5.5, 7, and 8.5 hours.

    asked by sandra
  250. social studies

    list examples of sumerian literature

    asked by alejandra
  251. physics

    An object traveling along the x-axis with constant acceleration has velocity v = +11.0 m/s when it is at x = 6.0 m and v = +20.0 m/s when it is at x = 10.0 m. What is its acceleration? HELP PLEASE!!!!!

    asked by nicole
  252. Math

    If $420 yields $31 in simple interest over 30 months, what is the annual rate?

    asked by Lani
  253. Math

    The ratio of red jelly beans to yellow ones is 3:4. If I eat 3 red ones and 6 yellow ones, the ratio is 4:5. How many yellow ones to begin with?

    asked by Pamala
  254. Psychology

    1: Sarah is crying in her counselor's office. Which goal of psychology does this represent?

    asked by Kerryann
  255. math/Finance

    I want to know the formula to use 1. A 120-day simple discount promissory note for $12,000 with a simple discount rate of 9% was signed on July 14. It was discounted on August 30 at 9.5%. Find the proceeds at the time of the sale. 2. 8. A $15,000 T-bill is

    asked by Janine
  256. Grammar

    Extra practices help her be solid on new concepts. Is the sentence correct? And ( "on new concept") or ("in new concept")

    asked by Anonymous
  257. Pure Mathematics

    Solve for x 1) 2^3-5x=(1÷64)^x-1 2) 4^2x÷(1÷2)^x=32 3) 2^2x+1-5(2^x)+2=0

    asked by kerry j
  258. PHYSICS

    An artillery shell is fired with an initial velocity of 300m/s at 55 degrees above horizontal. To clear an avalanche, it explodes on a mountainside 42.0s after firing. What are the x and y coordinates of the shell where it explodes, relative to its firing

    asked by NICOLE
  259. Math

    Write the improper fraction 68/10 as a mixed number in simplest form

    asked by Warren