Most popular questions and responses by jacob
  1. Check my awns-The true cost of fossil fuels - Quiz

    _________ is a solid fossil fuel that forms from plant remains. Coal ** Hydrocarbon Natural Gas Petroleum Air pollution can be controlled by Permitting more storm runoff. Burning more coal. Eliminating Sewage Putting scrubbers on power ** Formed how are

    asked on December 7, 2016
  2. Health

    Which eating disorder might be discovered by a dentist anorexia bulimi!@#$%^&* starvation diet obesity

    asked on May 7, 2016
  3. geometry

    Use formulas to find the lateral area and surface area of the given prism. The base of the prism is the rectangle with sides of length 13m and 5m. Show your answer to the nearest whole number.

    asked on August 9, 2011
  4. Physics

    Joe wishes to hang a sign weighing 730 N so that cable A, attached to the store, makes a 30.0° angle, as shown below. Cable B is horizontal and attached to an adjoining building. What is the tension in cable B?

    asked on November 17, 2012
  5. AR

    How many 5-pound bags of apples can be made from 400 apples, each weighing ¼ pound?

    asked on April 11, 2016
  6. la language arts

    Joe magarac, Man of steel 8. In section 1, what does the author mean when he says joe magarac is a folk hero? A. Joe was a real man who spent his whole life in the steel mills of Pittsburgh. B. Joe was a mysterious figure who vanished without a trace.* C.

    asked on May 25, 2016
  7. Applied Calculus

    If an open box is made from a tin sheet 7 in. square by cutting out identical squares from each corner and bending up the resulting flaps, determine the dimensions of the largest box that can be made. (Round your answers to two decimal places.) Height:

    asked on March 8, 2013
  8. Applied Calculus

    Find the absolute extrema of the function on the interval [2,3]. (Round your answers to the nearest hundredth.) Absolute Minimum ___ at x=___ Absolute Maximum ___ at x=___

    asked on April 12, 2013
  9. ss

    Multiple Choice 1.   What is the main advantage of using money instead of bartering?  (1 point) Many more people today use money than bartering to get goods and services. Not all countries use the same types of money in their economies. Money comes in

    asked on August 24, 2015
  10. math

    Bill, Ernie, Oscar, Sammy and Tony are the five basketball players on the starting team of the varsity squad. Each one is known by a different one of these five nicknames: Slats, Stretch, Tiny, Tower, and Tree. From the information given, determine the

    asked on February 24, 2010
  11. Chem answer check/ help

    For each of the following water-soluble compounds, indicate the ions present in an aqueous solution: NaI K2SO4 NaCN Ba(OH)2 (NH4)2SO4 would the answer to NaI be Na+ I-? Should there be more to my answer? Would K2SO4 be K+ SO-? Thanks for the explanation.

    asked on February 22, 2010
  12. Physics

    A 32-u oxygen molecule (O2) moving in the +x direction at 580 m/s collides with an oxygen atom (mass 16 u) moving at 870 m/s at 27 degrees to the x axis. The particles stick together to form an ozone molecule. Find the velocity of the ozone. Express your

    asked on April 13, 2009
  13. leadership development

    1.Even though Mike is a great basketball player, he tries with just half effort on drills during practice. This is an example of A wasting talent B getting distracted C allowing others to set goals 2.Jim would like to get a summer internship, but his dad

    asked on June 11, 2016
  14. Health

    People who experience episodes of _______ are not eating out of hunger; they are acting out of behaviors associated with bulimia and depression anorexia starvation dieting binge eating*** fasting

    asked on May 7, 2016
  15. Chemistry

    Which of the following statements is true? All spontaneous processes are exothermic All non-spontaneous processes are exothermic All spontaneous processes release free energy*** Entropy always increases in a spontaneous process

    asked on May 16, 2016
  16. Algebra

    Sam invested $1950 part of it at 6% and the rest at 8% yearly interest. The yearly income on the 8% invest was 6$ more then twice the income from the 6% investment. how much did he invest at each rate

    asked on April 24, 2011
  17. Chemistry

    A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if the pressure is increased to 894 torr at constant temperature?

    asked on July 11, 2011
  18. Physics

    On a very muddy football field, a 100 kg linebacker tackles an 75 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.5 m/s north and the halfback is sliding with a velocity of 7.5 m/s east. What is the magnitude

    asked on November 24, 2017
  19. Physics

    The patient in the figure below is to receive an intravenous injection of medication. In order to work properly, the pressure of fluid containing the medication must be 108 kPa at the injection point. (a) If the fluid has a density of 1024 kg/m3, find the

    asked on January 15, 2013
  20. Chemistry

    38.0kg mass of copper is melted to be cast into a graphite mold at a copper pipe foundtry. If the solid copper starts off at the normal melting temperature of copper and the liquid copper is put into the mold at the crystallization point of copper, how

    asked on August 15, 2012
  21. science

    Here are all the word you can use chemical property mixture heatcapasity homogeneous viscosity sublimitation physicalproperty compound chemicalformula substance density mass tempurature pressure heterogenerous A _________ property of matter describes its

    asked on April 11, 2016
  22. Chemistry

    What is(are) the precipitate(s) that form when K2SO4, BaCl2, and AgNO3 solutions are mixed?

    asked on February 23, 2013
  23. Chemistry

    Urea, which has the chemical formula (NH2)2CO, is a fertilizer that can be prepared by reacting ammonia (NH3) with carbon dioxide (CO2). Given the following chemical equation, what is the theoretical yield of urea (in grams) if 4.16 mol ammonia is the

    asked on March 4, 2017
  24. Health

    _________ commonly over-exercise, abuse laxatives, and refuse to eat in order to lose weight Bulimics Binge-eaters Anorexics*** Perfectionists

    asked on May 7, 2016
  25. pre calculus

    A force of 350 lb. is resolved into forces at right angles to one another, the angle of F2 being 67 from the 350 lb. force. Find F2.

    asked on January 2, 2019
  26. Math

    A tool shed 250cm high and 100 cm deep is built against a wall. Calculate the shortest ladder that can reach from the ground, over the shed, to the wall behind. How can I solve this?

    asked on January 22, 2018
  27. math

    2.joe was making mixed nuts.he used 2 1/4 pounds of pecans and 3 1/5 pounds of cashews.how many pounds of mixed nuts did joe make? A.5 17/40 B.5 2/9 C.5 1/2 D.5 9/20

    asked on November 20, 2014
  28. Health

    Individuals suffering from anorexia suffer extreme weight loss, usually _____ below the person's normal body weight 5% 8% 10%**** 15%

    asked on May 7, 2016
  29. math

    A cat is sitting on top of a tree, and spots a dog 10m south of the tree with an angle of depression of 65 degrees. Then it spots a firefighter a certain distance east of the tree with an angle of depression at 50 degrees. How far is the dog from the

    asked on April 17, 2019
  30. Chemistry

    A 50.0 mL aqueous solution of sodium hydroxide has a pH of 12.50. If 36.00 ml of 0.0200 mol/L sulfuric acid is added to this sodium hydroxide solution, what will be the new pH of the resulting solution? Assume that the temperature stays constant at 25 C,

    asked on December 11, 2016
  31. english

    can i get a quiz check Question 1.1. Choose the sentence that is punctuated correctly. (Points : 1) =====-> Many people are afraid of bold futuristic inventions Why did you spend all your money on expensive trendy clothes that you'll only wear a month or

    asked on May 27, 2015

    Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard,

    asked on March 12, 2016
  33. math

    a cylindrical container has a diameter of 14cm and a height of 20cm and is full of water. The water is poured into another cylinder which has a diameter of 20cm. How deep is the water in the second cylinder?

    asked on June 6, 2015
  34. technology

    1. Science is the body of knowledge and methods produced by engineering. True False 2. Technology changes society. True False 3. Although engineers do not always complete the steps of design process in the same order which of the following is almost always

    asked on September 10, 2018
  35. Maths

    A Piece Of Cloth Costs Birr 200. If The Piece Was 5m Longer, And The Cost Of Each Metre Of Cloth Was Birr 2 less,the Cost Of The Piece Would Have Remained Unchanged. How Long Is The Piece And What Is Its Orginal Price Per Metre?

    asked on January 6, 2016
  36. Math help!

    A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble, without replacing the first marble before drawing the second marble? Is the answer 1/9?

    asked on May 30, 2013
  37. Applied Calculus

    The world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of approximately 2%/year and find the function Q(t) that expresses the world population (in billions) as a function of time t (in

    asked on April 14, 2013
  38. science

    how do u prepare a 250-ml of 2.35 M HF dilution from a 15.0 M stock solution?

    asked on November 28, 2018
  39. Health

    Anorexia is a type of eating disorder that usually begins with young people with obese parents around the onset of puberty*** around the time they graduate high school who watch too much tv

    asked on May 7, 2016
  40. Pre calculus

    A plane is headed due south with an airspeed of 190 mph. A wind from the direction of S 40 degrees W is blowing at 30 mph. Find the groundspeed of the plane, rounded to the nearest whole number

    asked on October 30, 2015
  41. Science

    Which aspect of Einstein's theory of special relativity was testable? the postulates only the postulates and the predictions the predictions only none of the aspects

    asked on January 8, 2014
  42. Chemistry

    Fireflies flash at a rate that depends on the temperature. At 29oC, the average rate is 3.3 flashes every 10 seconds, whereas at 23oC, the average falls to 2.7 flashes every 10 seconds. Calculate the "energy of activation" (in kJ/mol) for the flashing

    asked on February 5, 2017
  43. Science

    What is the identity of the precipitate that forms when 70 mL of 0.3 M BaCl2 reacts with 65 mL of 0.35 M Na2CO3

    asked on February 27, 2017
  44. math

    I missed a lesson today on factoring and was wondering if i can get some help here for example, let's use 2x^2+5x+3

    asked on May 25, 2019
  45. technology

    1. Science is the body of knowledge and methods produced by engineering. True False 2. Technology changes society. True False 3. Although engineers do not always complete the steps of design process in the same order which of the following is almost always

    asked on September 9, 2018
  46. Statistics

    Richard has been given a 5-question multiple-choice quiz in his history class. Each question has four answers, of which only one is correct. Since Richard has not attended the class recently, he does not know any of the answers. The success occurs if

    asked on June 15, 2010
  47. Math Functions

    Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y=3 . Investigate whether other exponential functions have the same properties. Use the transformations to explain your observations.

    asked on July 26, 2015
  48. Physics

    A man is 6 feet tall and wishes to have a "full length mirror" in his house, meaning a mirror that lets him see himself from top to bottom. He goes to the hardware store to get a piece of flat (plane) mirror that is just barely long enough to work. How

    asked on September 3, 2012
  49. Math

    Dan will donate up to $480 to charity. The money will be divided between two charities: the City Youth Fund and the Educational Growth Foundation. Dan would like to donate at least to the Educational Growth Foundation. He would also like the amount donated

    asked on July 13, 2018
  50. Physics (light)

    A soap film is viewed in white light. If the film is much thinner than the wavelength of blue light, what is the appearance of the film? The soap film appears totally transparent because it reflects no visible light. The soap film appears blue because all

    asked on April 5, 2016
  51. Percent word problem

    A pitcher holds 2 gallons of orange juice. The orange juice is made 20% concentrated juice and 80% water. How much water is used in the orange juice?

    asked on January 18, 2013
  52. math

    which word or words correctly complete the sentence? a ________ has five faces, five vertices, and eight edges. a. triangular pyramid b. cube c. pentagonal pyramid d. rectangular pyramid

    asked on February 24, 2018
  53. Science-Chem

    Sucrose, C12H22O11, is burned to produce carbon dioxide and water. What is the balanced formula and reaction type?

    asked on March 8, 2010
  54. chemastrey

    of exhow many grams of no2 can be produced by the reaction of excess o2 with 19.8 of no

    asked on November 1, 2011
  55. science

    Over time,a plant pollinated by a hummingbird has developed very long, tube like flowers.Why might the flower have adapted in this way?

    asked on October 30, 2014
  56. Physics

    A person 1.90 m tall walks on a horizontal icy surface. The coefficient of friction between the surface of the ice and the person's shoe sole is μ = 0.33 and the length of the person's legs are 1/2 of the person's height. Determine the maximum step length

    asked on October 3, 2015
  57. Algebra help

    Two less than three-fourths of a number is 10. What is the number? A. 10 2/3 B. 13 1/3 C. 15 1/3 D. 16 Please help meh! God bless you :-)

    asked on December 12, 2018

    A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the drawing. As the station rotates, an astronaut in chamber A is moved 3.18 102 m along a circular arc. How far along a circular arc is an astronaut in

    asked on April 2, 2011
  59. math

    factorize the following expressions and if possible show your steps 4x+20 3y^2+12y x^2+4y-21

    asked on June 11, 2019
  60. PreCalc

    Suppose that $14,000 is invested in a savings account paying 5.2% interest per year. (a) Write the formula for the amount A in the account after t years if interest is compounded monthly.

    asked on December 4, 2016
  61. math

    what is $35 for 25 tapes

    asked on December 17, 2018
  62. math

    A charity raffle offers a first prize of $1,000,000, a second place prize of $100,000 and a third place prize of $10,000. A total of 500 000 tickets will be sold. What price should be charged for a ticket in order for the charity to make a 60% profit on

    asked on April 24, 2018
  63. Math

    The table shows the results of a spinner with four colored sections. Use the table to answer the question. The spinner is spun 50 more times. Which is the best prediction for the number of times the spinner will stop on blue?

    asked on January 18, 2017
  64. Applied Calculus

    A truck gets 800/x miles per gallon (mpg) when driven at a constant speed of x mph, where 40 ≤ x ≤ 80. If the price of fuel is $2.80/gal and the driver is paid $19/hr, at what speed is it most economical for the trucker to drive? (Round your answer to

    asked on March 15, 2013
  65. consumer mathB

    Your box of raisin bran cost $1.89 last year. This year it costs $2.25. What is the inflation rate?

    asked on November 3, 2011
  66. Chemistry

    2. Solid ammonium iodide decomposes to yield ammonia gas(NH3) and hydrogen iodide gas at 400oF. The equilibrium constant for this reaction is 0.215. Ten grams of ammonium iodide are sealed in a 10.0 L flask at equilibrium. Complete the following: a. Write

    asked on March 13, 2018
  67. Health

    Bulimia can be difficult to discover because most sufferers hide there condition and they tend to be a normal weight, sometimes overweight*** severely underweight slightly underweight obese

    asked on May 7, 2016
  68. Physics

    A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 50 m downstream from the point directly across the river, which is 79 m wide. (a) What is the speed of the river current? m/s (b) What is the

    asked on August 1, 2013
  69. english

    How education sector can be the one which can make american dream attainable to everyone?

    asked on December 12, 2018
  70. english

    Im a Danish student, and I've written this summary which I would like someone to correct. Thanks in advance! In the short story”Beyond the pale”, published in 1888, author Rudyard Kipling states via his narrator that one should stick to its caste.

    asked on October 8, 2009
  71. Check My Answer Please

    Why were women fighting for suffrage? A:because they wanted to end abuse toward women B:because they wanted to win the right to vote**** C:because they wanted to gain the right to work D:because they wanted to end women's inequality Completely doing an

    asked on December 5, 2016
  72. Physics

    A Ferris wheel with radius 11.0 m rotates at a constant rate, completing one revolution every 33.9 s. Suppose the Ferris wheel begins to decelerate at the rate of 0.227 rad/s2 when a passenger is at the top of the wheel. Find the magnitude and direction

    asked on November 18, 2011
  73. Applied Calculus......

    A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1/2 in. margins on the sides. She further stipulated that each page should have an area of 60 in.2. Find a function in the variable x, giving the area of

    asked on January 29, 2013
  74. Statistics

    Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six

    asked on June 21, 2010
  75. algebra

    The expression (x^3 )(x^(-17) ) is equivalent to (x^n). What is the value of n?

    asked on March 28, 2019
  76. Physics Help

    A dumbbell has a mass m on either end of a rod of length 2a. The center of the dumbbell is a distance r from the center of the Earth, and the dumbbell is aligned radially. If r≫a, the difference in the gravitational force exerted on the two masses by the

    asked on December 7, 2015
  77. Math-Calculus

    Find the point on the line -2x + 4y + 3 =0 which is closest to the point (-2,1). Note: I have been struggling on this for hours!

    asked on December 11, 2014
  78. IT

    Draw a flowchart or write the pseudocode for an application that allows a user to enter price and computes 8 percent sales tax on the item. Use // declartions

    asked on September 5, 2012
  79. Finances

    Faulkner's Fine Fries Inc. (FFF) is thinking about reducing its debt burden. Given the following capital structure information and an expected EBIT of $50 million (plus or minus 10 percent) next year, should FFF change their capital structure? Current

    asked on May 4, 2019
  80. math

    Tommy walked 3 2/7 miles. write the distance Tommy walked as an improper fraction. A.4 B.4/3

    asked on December 6, 2016
  81. Physics

    A person 1.90 m tall walks on a horizontal icy surface. The coefficient of friction between the surface of the ice and the person's shoe sole is μ = 0.33 and the length of the person's legs are 1/2 of the person's height. Determine the maximum step length

    asked on October 4, 2015
  82. math

    a boat took 5 hours to travel 60 km up a river, against the current. the return trip took 3 hours. find the speed of the boat in still water and the speed of the current. if possible, show your steps

    asked on June 9, 2019
  83. Maths

    Six numbers are written in ascending order: 1.4, 3, 4.7, 5.8, a, 11. Find all possible values of a if the number 11 is considered to be an outlier. The answers say 5.8 is less than or equal to a

    asked on August 17, 2017
  84. chemistry

    A sample of an unknown gas effuses in 11.5 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.77 min. What is the molar mass of the unknown gas?

    asked on November 1, 2010
  85. Language arts

    The word expectations best describes which situation from “Two Kinds”? Waverly’s reputation as a chess champion the mother’s hopes for her daughter to become a prodigy Mr. Chong’s retirement from teaching piano the daughter’s performance at the

    asked on September 14, 2017
  86. chemistry

    a mixture of 39.8g containing potassium chloride and potassium trioxochlorate (v) upon heating, the residue weighed 28.7g what is the percentage mass of potassium chloride in the residue?

    asked on November 21, 2014
  87. Chemistry

    Thallium-208 has a half life of 3.053 min. How long will it take for 120.0 g to decay to 7.50 g?

    asked on December 11, 2012
  88. math

    the diameter of a soup can is 7cm. the label wraps around the can. about how many centimeters long must the label be to go all the way around the soup can? use 22/7 for pi describe how to mentally check whether your answer is reasonable

    asked on January 4, 2011
  89. Chem answer check

    Which of the following are strong electrolytes? BaCl2 AgNO3 PbI2 Pb(NO3)2 KI I think they are all strong electrolytes. Is this correct?

    asked on February 22, 2010
  90. math

    the maximum viewing distance on a clear day is related to how high you are above the surface of the earth. this relationship can be approximated by the formula h=0.075d^2, where d is the max distance, in kilometers, and h is your height, in meters, above

    asked on May 11, 2019
  91. Home economics

    The areas in home economics

    asked on November 6, 2018
  92. physics

    A typical red blood cell subtends an angle of only 1.7×10−5 rad when viewed at a person's near-point distance of 25 cm. Suppose a red blood cell is examined with a compound microscope in which the objective and eyepiece are separated by a distance of

    asked on April 21, 2016
  93. Geometry

    Let's say a company is manufacturing juice boxes that are rectangular prisms with dimensions 4 inches by 3 inches by 4 inches. The company has a warehouse whose dimensions are 40 feet by 30 feet by 20 feet. If the company makes 200,000 juice boxes, will it

    asked on December 5, 2013
  94. Applied Calculus

    For its beef stew, Betty Moore Company uses aluminum containers that have the form of right circular cylinders. Find the radius and height of a container if it has a capacity of 29 in.3 and is constructed using the least amount of metal. (Round your

    asked on April 2, 2013
  95. 4th grade

    factoring the tens how to find the product using rectangles

    asked on December 9, 2009
  96. Spanish

    Completa cada oración con la forma correcta de SER o ESTAR. 1.Después del semestre, los estudiantes __________ muy cansados. 2.Mis compañeros y yo __________ trabajando en el mismo proyecto. 3.Esas __________ ideas muy buenas. Las voy a usar para la

    asked on October 22, 2018
  97. Health

    Both anorexia and bulimia can be treated by specific medications targeting eating disorders physiological therapy*** dieting personal trainers

    asked on May 7, 2016
  98. Physics

    A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. If the ball leaves her club with a velocity of 46.0 m/s at an angle 0f 35.0º above the ground, find the time that the ball is in the air

    asked on February 17, 2014
  99. Algebra

    Pauline sells computers on commission. She spends 2 hours on selling a laptop and 1 hour on selling a desktop computer. She works no more than 40 hours per week and routinely sells at least 1 laptop and at least 4 desktops each week. To maximize her

    asked on April 26, 2011
  100. maths

    A 60m long bridge has an opening in the middle and both sides open up to let boats pass underneath. The two parts of the bridge floor rise up to a height of 18 m. Through what angle do they move?

    asked on May 24, 2017


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