Popular questions and responses by Lala
  1. calculus

    a boat leaves a dock at 2:00 pm and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 3:00 pm. at what time were the two boats closest together

    asked on November 14, 2011
  2. Chemistry

    A scuba diver’s tank contains 0.29 kg of O2 compressed into a volume of 2.3L. A)calculate the gas pressure inside the tank at 9 Celsius. B) what volume would this oxygen occupy at 26 Celsius and 0.95atm? Answer is a)91atm B) 2.3 x 10^2 L Trying to find

    asked on January 18, 2018
  3. Chem

    a 4.369g sample of metal is placed in a flask. water is added to the flask and the total volume in the flask is read to be 126.4ml. the mass of the water, flask, and metal is 268.5g. if the mass of the flask is 139.3g and the density of water is 1.000g/ml,

    asked on December 5, 2012
  4. algebra

    Write the number 2.4 in the form , using integers, to show that it is a rational number

    asked on February 5, 2018
  5. Chemistry

    Gallium melts just above room temperature and is liquid over a very wide temperature range (30-2204 °C), which means it would be a suitable fluid for a high-temperature barometer. Given its density, daa = 6.0 g/cm, what would be the height of the column

    asked on January 17, 2018
  6. chem

    1) how many molecules are present in 1.5 moles of NaCl? 2) how many atoms of chlorine are in 19.0 grams of MgCl2?

    asked on May 29, 2014
  7. Calculus

    A fence is 1.5m high and is 1m from a wall. A ladder must start from the ground, touch the top of the fence, and rest somewhere on the wall. Calculate the minimun lenght of the ladder. I drew a diagram and i ended up with a right angle triangle. i made the

    asked on April 10, 2010


    asked on November 16, 2009
  9. Matsci

    If the absolute pressure at the bottom of the ocean is 120 kPa, how deep is the water at this point

    asked on December 5, 2015
  10. physics

    A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits another kid 2.1 away square in the back, at a point 0.91 above the ground.

    asked on February 10, 2012
  11. Penn foster

    A healthier substitution for one egg is

    asked on February 18, 2017
  12. algebra

    A motorboat traveling a distance of 225 miles in 5 hours while traveling with the current. Against the current, the same trip took 9 hours. Find the rate of the boat in calm water and the rate of the current. rate of boat___ mph rate of current___ mph

    asked on November 27, 2014
  13. Economic

    a 20 year bond pays on a face value of $1,000. If similar bonds are currently yielding 9%. What is the Market value of the bond?

    asked on July 3, 2014
  14. math

    20. A scale drawing of a town park has a scale of 5 in : 100 ft. What is the actual length of each foot in the drawing? (1 point)

    asked on December 2, 2011
  15. Science

    A scientist is studying a new chemical he hopes will prevent insects from eating raspberry bushes. he sprays the chemical on a raspberry bush and places it with an unsprayed blackberry bush and some insects in a sealed room. He observes insects eating the

    asked on September 27, 2018
  16. physics

    help please?? A bocce ball with a diameter of 6.00 cm rolls without slipping on a level lawn. It has an initial angular speed of 2.35 rad/s and comes to rest after 2.50 m. Assuming constant deceleration, determine (a) the magnitude of its angular

    asked on December 1, 2017
  17. chem

    Calculate the number of kJ released for the reaction shown below, if you begin with 52 grams of fluorine (F2), and the ΔH = -542 kJ. H2(g) + F2(g) → 2 HF(g)

    asked on September 29, 2015
  18. English

    What does this quote mean? “Stars got tangled in her hair whenever she played in the sky.”

    asked on January 12, 2014
  19. Financial Mgmt.

    Nachman Industries just paid a dividend of D0 = $1.75. Analysts expect the company's dividend to grow by 30% this year, by 10% in Year 2, and at a constant rate of 5% in Year 3 and thereafter. The required return on this low-risk stock is 9.00%. What is

    asked on March 5, 2013
  20. management

    regarding management and leadership, which statement is most accurate?

    asked on June 22, 2012
  21. Physics

    The coefficient of static friction between the m = 2.95-kg crate and the 35.0° incline is 0.345. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked on October 26, 2011
  22. Physics

    A lightning bug flies at a velocity of 0.25 m/s due east toward another lightning bug seen off in the distance. A light easterly breeze on the bug at a velocity of 0.25 m/s. What is the resultant velocity of the lightning bug? I drew the .25 east but would

    asked on September 20, 2011
  23. Physics

    A lightning bug flies at a velocity of 0.25 m/s due east toward another lightning bug seen off in the distance. A light easterly breeze on the bug at a velocity of 0.25 m/s. What is the resultant velocity of the lightning bug? I drew the .25 east but would

    asked on September 20, 2011
  24. world history

    why was the congo free state not able to make a profit in the early years?

    asked on April 24, 2011
  25. Probability

    urn1 contains 3 red chips and 1 white chip. urn2 contains 2 red chips and 2 white chips. 1 chip is drawn from each urn and transeferred to the other urn. then a chip is drawn from the first urn. what is the probability that the chip ultimately drawn from

    asked on January 6, 2011
  26. chemistry

    A thimbleful of water at 100 deg C has a higher temp than a swimming pool full of water at 20 deg C, but the pool has more thermal energy than the thimble. Explain why this is possbile?

    asked on April 26, 2010
  27. calculus

    Two roads intersect at an angle of 48º. A car and truck collide at the intersection, and then leave the scene of the accident. The car travels at 100 km h down one road, while the truck goes 80 km h down the other road. Fifteen minutes after the accident,

    asked on April 15, 2010
  28. Calculus

    A certain radioactive material decays exponetially. The percent, P, of the material left after t years is given by P(t)= 100(1.2)^-t a)Determine the half life of the substance

    asked on April 13, 2010
  29. chemistry

    Write the complete balanced molecular, ionic,and net ionic equations for the reaction of nickle II chloride + sodium phosphate. Which product,if any, is a precipitate?

    asked on December 3, 2009
  30. Romeo and Juliet Help (24 hours and no response)

    I posted questions yesterday and it's on the next page. Could you please check them and get back with me thanks.

    asked on March 13, 2009
  31. call of the wild

    A novel differs from a short story because it

    asked on August 19, 2008
  32. Science

    .A uniform metre rule balances horizontally on a knife edge placed at the 58 cm mark when a weight of 20gf is suspended from one end. what is the weight of the rule? *

    asked on June 25, 2020
  33. physics

    a man rides a motorcycle 12km due east and later 5km due north. calculate the: distance covered 2.displacement covered

    asked on August 28, 2019
  34. Social studies

    How was transportation standardized under the Qin? A roads were the same width B Carriages were the same height C Everyone paid the same road tax**** D Axles of carriages were the same length This is the Unification of China quiz Can someone check my

    asked on December 6, 2018
  35. science

    which units would you use to measure the volume of a small cardboard box

    asked on August 21, 2018
  36. Physics

    the cartesian coordinates of a point on a circle are (1.5m, 2.0m). what are the point;s polar coordinates (r, degree) of this point?

    asked on November 7, 2017
  37. Math

    9:2x=15:12 , so x= ..?

    asked on November 22, 2016
  38. English

    In the Night The Bed Fell, what is the father's reaction to the scene he discovers when he opens the attic door? He is ready to chase a burglar He's worried someone's been hurt He wants to know what's happened He's glad that everyone's all right My answer

    asked on September 19, 2016
  39. accounting

    paying a fixed monthly fee of $15.00 up yo 240 min then .08 per min if i use less than 240 min still paying 15.00 per mo. based on 100 min 240 min 540 min

    asked on May 10, 2016
  40. Accounting

    variable cost, fixed cost, total costif .10 per min long dist calling based on 100 min, 240 min, and 540 min

    asked on May 10, 2016
  41. chemistry

    Calculate the pH of 0,3g calcium hydroxide dissolved in water to give 500ml solution.

    asked on October 26, 2014
  42. Physics

    An electric heater warms a large 0 degree Celsius block of ice at the rate of 200J/s . calculate the mass of the ice that melts in 10 minutes

    asked on November 17, 2013
  43. algebra

    A car travels down the highway at speeds between 50 miles per hour and 65 miles per hour. If the car travels for 4 hours, write an expression that represents the distance, d, the car has travelled.

    asked on November 1, 2013
  44. chemistry

    how to prepare and calculate 10%,20% and 30% of phosphoric acid from the concentrated? Meaning that if 10% = 10%phosporic acid+90% of water. let say i want to prepare in 250ml volume.

    asked on January 29, 2013
  45. statistics

    test the claim that less than 30% of the students in class own a car at the 0.10 significance level.

    asked on December 5, 2012
  46. science

    a piece of metal weighs

    asked on October 26, 2012
  47. Economics

    Use supply and demand economic theory and diagram to explain why the prices of houses has changed so much over the last 3 years. I just need topics to use to write about

    asked on September 16, 2012
  48. physics

    a large chunk of ice with mass 15 kg falls from a roof 8 m above the ground . find the kinetic energy of the ice when it reaches the ground

    asked on February 6, 2012
  49. geometry

    how do you find the lenght of the midsegment of a trapezoid when one base equals 21 and the other 17 ?

    asked on February 15, 2011
  50. English

    I'm writing a Precis of a book and it asks to to put the literary period and country I tried to look but I still don't really understand. Thanks

    asked on January 5, 2011
  51. math

    what should you call a man with a clamp

    asked on March 28, 2011
  52. ap history

    when did american economic institutions began to be shaped in a capitalist framework? A.during the colonial period B.during the federalist era C.during the jacksonian era D.during the civil war E.during the late 1890s

    asked on September 26, 2010
  53. Maths

    A box with no top is to be built by taking a 6'' - by - 10'' sheet of cardboard and cutting x - in. squares out of each corner and folding up the sides. Find the value of x that maximizes the volume of the box.

    asked on September 19, 2010
  54. Calculus

    How can i find f''(x) of the function f(x)= 2(cosx)(sec^2x)

    asked on April 11, 2010

    reaction KMnO4+ EDTA(ethylenediaminetetraacetic acid) + MnSO4(s)---> MnCl3 (Violet/Rose solutions) note: Mn is being reduced. a) What is the catalyst in this reaction above? b)What is the role of EDTA in the reaction above

    asked on February 14, 2010
  56. chem

    calculate the number of moles in 0.00655 g of antimony

    asked on March 16, 2009
  57. Romeo and Juliet (Check answers pplz hurry)

    Could you please check these answers from Act 1 (Review it's only 5 questions) 1.What warning does the Prince issue to the Capulets and Montagues? Answer: The Prince warns to the Capulet's and Montague's is if anyone fights they will be put to death. 2.

    asked on March 12, 2009
  58. math

    a driveway is 162 feet long, 12 feet wide, and 6 inches deep. how may cubic yards of concrete will be required to lay the driveway? and pease explain answer

    asked on March 10, 2009
  59. Math

    How are common denominator and common multiple alike and different

    asked on February 19, 2020
  60. Math

    if rain is falling at a rate of 2.01 in./h how much rain would you expect after five hours express your answer rounding correctly to the nearest 10th of an inch

    asked on October 15, 2019
  61. English

    In Crash by Jerry Spinelli What do Crash and Mike have in common?

    asked on September 3, 2019
  62. Statistics

    1. A local community college determines the probability that a student will reenroll for a second year is 0.91. A representative surveys 100 random first year students and asks them if they will be enrolling for the next year. What is the probability that

    asked on January 15, 2019
  63. Social studies

    What was the purpose of the Great Wall? A to separate warring states B to keep out nomads to the north*** C to standardize Chinese roads D to make trade and transportation easier (*** my answer) Please NO answers please just check my answer or send study

    asked on December 6, 2018
  64. Social studies

    Does anyone have the answers to the quiz I need to check my answers Thanks it would help a lot

    asked on December 6, 2018
  65. edcation

    When a person categorizes someone else as belonging to a certain group based on assumptions, this is called

    asked on July 6, 2018
  66. Maths

    Construct a parallelogram AB is 8cm ABC is 120 degrees and BC is 5cm

    asked on May 11, 2018
  67. math

    the radius of a circular cricket field is 60 m. M and N are the ends of a diameter of the field. To walk from M to N, about how much further is it to walk around the boundary than straight across the field?

    asked on February 25, 2018
  68. math

    petrol price rose from x cents/ liter to y cents/liter. Before the rise, it costs $a t fill my car with petrol. What is the new cost to fill it?

    asked on February 23, 2018
  69. physicss

    The oil drain plug on a car's engine has just been tighten to a torque of 25m*N. a) if a 0.15m long wrench is used to change the oil, what is the minimum force needed to loosen the plug? b) due to limited workspace, it will be necessary to crawl under the

    asked on December 5, 2017
  70. math

    A bag contains some silver balls and golden balls. If you remove one silver ball from the bag, 1/7 of the remaining balls in the bag are silver. If you remove 2 golden balls from the bag, then 1/5 of the remaining balls in the bag are silver. How many

    asked on December 2, 2017
  71. physics

    A car with a 65cm diameter wheel travels 3.0km. How many revolutions does the wheel make in this distance?

    asked on November 14, 2017
  72. physics

    A car with a 65cm diameter wheel travels 3.0km. How many revolutions does the wheel make in this distance?

    asked on November 14, 2017
  73. physics

    A car with a 65cm diameter wheel travels 3.0km. How many revolutions does the wheel make in this distance?

    asked on November 14, 2017
  74. Physics

    the cartesian coordinates of a point on a circle are (1.5m, 2.0m). what are the point;s polar coordinates (r, degree) of this point?

    asked on November 7, 2017
  75. math

    ABC is a sector of a circle with radius R cm and centered at C. The arc DE lies on a circle also centered at C.If the arc DE divides the sector ABC into two regions of equal area. Find the length of the interval CD in terms of R.

    asked on October 27, 2017
  76. math

    ABC is a sector of a circle with radius R and center C. The arc DE lies on a circle also centred at C. If DE divides ABC into two regions of equal area, find the length of CD in terms of R

    asked on October 26, 2017
  77. math

    the plan of a shopping complex is drawn to a scale of 1:400. A supermarket on the plan occupies an area of 0.25m square, calculate its actual area in hectares

    asked on October 21, 2017
  78. physics

    When bunting, a baseball player uses the bat to change both the speed and direction of the baseball. (b) The baseball has a mass of 0.11 kg; its speeds before and after the bunt are 16 m/s and 12 m/s, respectively; and the bunt lasts 0.023 s. What is the

    asked on October 17, 2017
  79. Physics

    A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)?

    asked on October 4, 2017
  80. Physics

    Vector A, a wind velocity vector, has a magnitude of 20 miles per hour and is blowing toward the North. A second wind velocity vector, Vector B, has a magnitude of 50 miles per hour and is blowing toward the Southeast. A third wind velocity vector, Vector

    asked on October 4, 2017
  81. Math

    Two similar posters of transformers were displayed in a shop. The area of the larger posters is 117 cm square and the area of the smaller is 52 cm square. If the width of the larger is 18 cm, find width of the smaller.

    asked on September 24, 2017
  82. Math

    Students are making picture frames. They can choose from a brown or black picture frame, and a red, yellow, blue, or green matte. How many different picture frame and matte combinations can the students make?

    asked on June 15, 2017
  83. Math

    During the month of May, Jean has photography class every third day and a photography show every Saturday. On May 5 she has class and a show. During the month of May, how many more times will she have a class and a show on the same day? There are 31 days

    asked on June 15, 2017
  84. math

    if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction

    asked on May 25, 2017
  85. math

    if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction

    asked on May 25, 2017
  86. math

    tracy is 7 times as old as heather. if let x be the age of heather now. If in five years time , tracy will be four times as old as heather, write an equation involving x and solve it to find what tracy's age is now.

    asked on May 13, 2017
  87. Algebra

    Solve for x. 4(12)4x=1000 Enter your answer to the nearest hundredth in the box. x ≈ 5.21

    asked on April 24, 2017
  88. Social Studies

    1. Which river helped Rome grow and expand? A. Tigris

    asked on March 29, 2017
  89. math

    if A=5^3*7^3*3^4, find the smallest number A must be multiplied to get a perfect square

    asked on March 11, 2017
  90. math

    from a group of 5 people, how many ways can 3 be selected?

    asked on March 8, 2017
  91. Chemistry

    Calculate the energy needed to ionize an electron of H atoms from its second excited state.

    asked on February 24, 2017
  92. Social Studies 6 B

    1. The Saraswati River was a twin to which other river? A. Ganges. B. Tigris. C. Himalaya. D. Indus. 2. Glacial runoff and ________ provide the water for the large rivers of India. A. underground wells. B. melting snow. C. rain. D. steam. 3. Saraswati

    asked on January 26, 2017
  93. Finance

    You plan on depositing $10,000 at the end of each year for 30 years into a retirement account that pays 5% interest. How much could you withdraw annually in equal beginning of year amounts starting at the time you make your last deposit and continuing for

    asked on January 13, 2017
  94. Finance

    EMAR expects to receive $2,000 per year for 10 years and $3,500 per year for the next 10 years. What is the present value of this 20-year cash flow? Use an 7% discount rate.

    asked on January 13, 2017
  95. Finance

    Suppose you borrowed $15,000 at a rate of 9% and must repay it in 5 equal installments at the end of each of the next 5 years. What is the outstanding balance of the loan at the end of second year?

    asked on January 13, 2017
  96. physics

    a car travels at 25m/s on a slick road takes 4 second to come to a complete stop. what was the car's average acceleration over 4 second?

    asked on November 10, 2016
  97. Math

    A garden is 3m wThere is a pathway that runs along the perimeter inside the garden.If the area of pathway is half of the area of garden, then the width of the pathway is how many meters?

    asked on September 27, 2016
  98. Math

    Find the quantity of which: 5.4 kg is 45%

    asked on August 19, 2016
  99. English (Langue Arts)

    What does the following quote from “The cask of Amontillado “ reveal about what Montresor wants his servants to do ? "I had told them that I should not return until the morning and has given them explicit orders not to stir from the house. These orders

    asked on May 20, 2016
  100. accountung

    a fixed mo fee of 22.00 up to 510 min. then .05 per min thereafter if i use less than 510 min i still pay 22.00 per month based on 100 min/ 240 min. 540 min.

    asked on May 10, 2016


  1. 1
  2. 2
  3. 3