Questions Asked on
September 3, 2018

  1. Physics

    A certain freely falling object, released from rest, requires 1.40 s to travel the last 20.5 m before it hits the ground. (a) Find the velocity of the object when it is 20.5 m above the ground. (Indicate the direction with the sign of your answer. Let the

    asked by Doug
  2. Chem

    A patient receives 3.2 L of glucose solution intravenously (IV). If 100. mL of the solution contains 5.0 g of glucose (carbohydrate), how many kilocalories did the patient obtain from the glucose solution? *If anyone could help me with this, please show

    asked by Lori
  3. chemistry

    determine the mass of carbon iv oxide produced on burning 104g of ethyne C2H2

    asked by fasikan
  4. Math

    How do I go about proving that: cos(4θ) + 4cos(2θ) ≡ 8cos^4(θ) - 3 Thanks in advance!

    asked by Autumn
  5. Physics

    A runner is jogging in a straight line at a steady vr= 2.2 km/hr. When the runner is L= 4 km from the finish line, a bird begins flying straight from the runner to the finish line at vb= 6.6 km/hr (3 times as fast as the runner). When the bird reaches

    asked by Linda
  6. math

    how many positive 4-digit numbers are there with an even digit in the hundreds position and an odd digit in the tens position? a. 10,000 b. 5,040 c. 2,500 d. 2,250

    asked by nicole
  7. english

    According to “Only Daughter,” what had the most important effect on the author’s identity? her extended family her writing career Spanish movies her college experiences A?

    asked by Bri
  8. Economics

    Develop a hypothetical table of information for coffee that shows demanded at various price and supply of coffee at these prices draw a demand and supply curve and show a equilibrium price at which the market is cleared of its aupplies

    asked by Vishwendra
  9. Economics

    Determine which of two investment projects a manager should choose if the discount rate of the firm is 20%. The first project promises a profit of $100,000 in each of the next four years, while the second project promises a profit of $75,000 in each of the

    asked by Karukumen
  10. physics

    A particle moves in the xy-plane, starting from the origin at t = 0 with an initial velocity v0 = (20ˆi – 15ˆj) m/s and a constant acceleration of a = 4.0ˆi m/s2. Determine the particle’s speed and direction at t = 5.0 s.

    asked by anonymus
  11. Maths

    A small ant climbs 5cm in 1 min and slips down 3cm .how much time it will take to climb to 6cm

    asked by Maheen begum
  12. Physics

    calculate the electric potential at a point P, a distance of 1m from either two charges of +10uC and -5uC which are 10cm apart. Calculate also the potential energy of a +2uC charge placed at a point,P

    asked by Evans
  13. social studies

    Doc A: Religion 1. according to this document where did Hammurabi get his power as king? 2. monotheistic or polytheistic? a. according to this document was Babylonia a monotheistic society believe in one God or polytheistic society believe in many gods? 3.

    asked by Rhia
  14. english

    Choose whether the sentence is declarative, interrogative, imperative, or exclamatory. That wreath should be decorated with a large bow at the bottom. declarative imperative exclamatory interrogative B?

    asked by Bri
  15. maths

    calculate the scale of a plan where 1mm represents 0.5m

    asked by letsile
  16. English

    1. I blew out the candles on the birthday cake. 2. I blew out the candle lights on the birthday cake. 3. I blew out the candlelights on the birthday cake. [Which expression is grammatical? Can we use all of them? Which one is commonly used?]

    asked by rfvv
  17. World History

    How did the impact of imperial powers on colonies have a drastic effect on the course of human history? I don't how to answer this? Any idea?

    asked by Emily
  18. Physics

    A tennis ball isdropped from 1.52m abovethe ground. It rebounds to a height of 0.918 m. With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s2 . (Let down be negative.) Answer in units of m/s. (part 2 of 3) With what velocity

    asked by Lynelle
  19. Math

    15-7 subtraction sentences

    asked by Beny
  20. World History

    How did the Sapa Inca help to preserve Incan society?

    asked by Anonymous
  21. english

    (1) To insert a table into your spreadsheet, the workbook says to "first click on the 'Table' tab." (2) Then, you could "place the cursor on the area where you want to put your table." (3) Click "Insert," and then select "Spreadsheet Table" to choose the

    asked by emma
  22. Science

    Two point charges 6mew Coulomb and 2 new coulomb separated by distance 3cm in free space calculate work done in separating them to infinity

    asked by Kajal
  23. maths

    seema reads 1/5 of a book per hour.if she goes to sleeping after reading the book for 7/3 hours.how much part of book is now left to be read?

    asked by shehzad
  24. Economics

    Take a fmcg goods like washing machine detergent analyze the factor that determine the demand of this product

    asked by Vishwendra
  25. Econ

    Sam has a job as a pharmacist earning $30,000 per year, and she is deciding whether to take another job as the manager of another pharmacy for $40,000 per year or to purchase a pharmacy that generates a revenue of $200,000 per year. To purchase the

    asked by Phoebe
  26. Math

    A shopkeerper lost 10%by selling an article for Rs 1200.at what price should he have sold the article gain 10% with statement

    asked by Neha srivastva
  27. Algebra

    Consider the monomials 15x^2, y^2 and 6x^3 a. Factor the monomials. b. What factors of these monomials are common factors? c. Find the greatest common factor of 15x^2, y^2 and 6x^3 I'm having a really hard time with this.

    asked by Jen
  28. Math

    Simplify. 3ab^2/4ab * 3a^2 b4a

    asked by Mo
  29. geography

    any knowledge about tourism industry

    asked by JANET
  30. science

    what is the probability density function of a hazard?i have no idea what is is other than it relates to measuring of a risk. I don't know if that is correct either. i really don't understand what it is

    asked by madeline
  31. Chemistry

    Tf (acetic acid) = 16.1°C Tf (with 3.00g of solute in 10.00mL of acetic acid) = - 2.5°C Use the data to calculate the molecular mass of the solute (Acetic acid: Kf = 3.9°C•kg/mol; D = 1.05 g/mL) After finding molality I was completely stuck on what to

    asked by ryancon
  32. MATH

    The diameter of acilindrical unshapen pencil 8mm and its length 17.5 cm find the surface area?

    asked by Daudi
  33. Physics

    A tennis ball with a speed of 26.3 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 13.8338 m/s. If the ball is in contact with the wall for 0.00998 s, what is the average

    asked by Luca
  34. Math

    Consider the monomials 15x^2y^2 and 6x^3y. a. Factor the monomials. b. What factors of these monomials are common factors? c. Find the greatest common factor of 15x^2y^2 and 6x^3y. (UPDATED VER.)

    asked by Cam
  35. advanced math

    A runner is jogging in a straight line at a steady vr= 2.2 km/hr. When the runner is L= 4 km from the finish line, a bird begins flying straight from the runner to the finish line at vb= 6.6 km/hr (3 times as fast as the runner). When the bird reaches

    asked by Linda
  36. chemistry

    Calculate the amount of heat required to heat a 3.5 kg gold bar from 21 degrees C to 37 degrees C. What would be the best way to work this problem? I don't know if I need to convert the kg to g.

    asked by Raene
  37. MATH

    Add the following vectors using trigonometry (i.e. cosine and sine laws). 9 N on a heading of [S2°W] and 11 N on a heading of [N31°W].

    asked by Anonymous
  38. Math

    Given that A = (3 x, x+1 2) and B =(1 2, 3 0), find value of x for which AB is a singular matrix.

    asked by Kd
  39. chemistry

    Calculate the amount of heat required to heat a 3.5 kg gold bar from 21 degrees C to 37 degrees C. What would be the best way to work this problem? I don't know if I need to convert the kg to g.

    asked by Raene
  40. Calculus

    In the exercise below find the x-values at which f is not continuous. Which of the discontinuities are removable? f(x) = csc2x

    asked by Philip
  41. Math

    Jamie has eight packs of candlewax to make sense of candles each pack contains 14 ounce of wax Jamie uses 7 ounces of wax to make one candle how many cans can she make

    asked by Keegan
  42. Math

    Let f be the function defined by f(x) = x^2 if x

    asked by Anonymous
  43. english

    whats the theme of aunt elizabeths dream by matthew ramirez

    asked by Anonymous
  44. Math

    The function f is defined by f(x)= x^2-2x+3 if x≤1 and f(x)=-2x+5 if x > 1 Is f continuous at x=1? How do I solve this

    asked by Anonymous
  45. us history

    A league of friendships and perpetual union refers to what? Articles of Confederation?

    asked by Anonymous
  46. Math

    Use the mid ordinate rule with strips to find the area bounded by the curve y = x^2 + 1, x = -4, x = 8 and x-axis

    asked by Kd
  47. Math

    David and Sammy had each 840 tree seedlings. David planted equal number of seedlings per row in x rows while Sammy planted equal number of seedlings in (x + 1) rows. The number of tree seedlings planted by David in each row were 4 more than those planted

    asked by Kd
  48. math

    Let h be defined by h(x)=f(x)*g(x) x less than or equal to 1 h(x)=k+x if x > 1 If lim as x approaches 1 f(x)=2 and lim as x approaches 1 g(x)=-2 then for what value of k is h continous? A. -5 B. -4 C. -2 D. 2

    asked by Anonymous
  49. Geography

    Find the precision for each measurement. 120 meters, 7 1/4 inches, 30.0 millimeters

    asked by Mike
  50. Math

    The line x=c is a veritcal asymptote of the graph of the function f Which of the following statements cannot be true? A. Lim as x approaches c from the left f(x)= infinity B. lim as x apporaches infinity f(x)=c C. f(c) is undefined D. f is continous at x=c

    asked by Anonymous
  51. Math

    David and Sammy had each 840 tree seedlings. David planted equal number of seedlings per row in x rows while Sammy planted equal number of seedlings in (x + 1) rows. The number of tree seedlings planted by David in each row were 4 more than those planted

    asked by Kd
  52. u.s. history

    Was the central government able to accomplish much under the articles of confederation? No, limited functions of federal gov. Is this correct ? Are federal gov and central gov pretty much the same thing?

    asked by Anonymous
  53. Physics

    A small mailbag is released from a helicopter that is descending steadily at 2.58 m/s. (a) After 3.00 s, what is the speed of the mailbag? v = 32.01 Correct: Your answer is correct. m/s (b) How far is it below the helicopter? d = 41.9 ?????????????/

    asked by Doug
  54. Social studies

    Explain how the Civic virtues of the ancient Romans inspired the founding fathers vision of how citizens should conduct themselves in the United States. Can anyone help me with this in anyway? Like maybe a link or something Asap please

    asked by Anon
  55. math

    The graph of the function f(x)=(x^-9)/2x^2-5x-3 has a vertical asymptote a x=a and a horizontal asymptote at y=b. What are the values of the constants a and b? A. a=-3 b=2 B. a=-1/2 b=1/2 C. a=1/2 b=1/2 D. a=3 b=2 B???

    asked by Anonymous
  56. Math

    The melt in your mouth chocolate factory sells three times as many minutes as it sells almond bars it self have this many almond bars as it sells caramels if it sells 3750 cases of minutes each month how many karma says it’s all in one month

    asked by Anonymous
  57. Math

    Use the mid ordinate rule with 6 strips to find the area bounded by the curve y = x^2 + 1, x = -4, x = 8 and x-axis

    asked by Kd
  58. Maths

    If y=2xsin2x+cos2x, find d²y/dx² if x=2p/3 in exact value

    asked by Hency
  59. Science

    We know the next following bond energies: C≡O: 1 075 kJ; H−H: 435 kJ; C−H: 393 kJ; C−O: 356 kJ; O−H: 464 kJ. With that, a) Calculate how many kJs of energy are required to break all the simple bonds in 0,2 moles of CH4. b) With the energy bonds,

    asked by Amy
  60. Science

    Does nuclear chemistry involve protons and neutrons to create a huge amount of energy?

    asked by Kathy
  61. Math

    How is the process used to multiply a fraction and a whole number similar to the process of multiplying two whole numbers

    asked by Anonymous
  62. maths

    The polynomial P(x) is given by P(x) = ax^3 + 15x^2 + cx - 72, where a and c are constants. The three zeros of P(x) are -3, 2 and B. Find the value of B.

    asked by Fred
  63. Biology

    Can someone please explain to me the biological definition of what alternative hypotheses is? I've looked through the paragraphs in my textbook, however, I still can't seem to arrive at a clear understanding of what the definition is.

    asked by Sally
  64. English

    Looking at the way you were treated while you lost your unborn baby do you think people of colour should've been treated with the same lack of respect as you were or do you wish they would've been treated differently from you

    asked by Kamogelo
  65. math

    illustrate using examples the three methods of showing scale

    asked by letsile
  66. Algebra

    Can someone give me a 3rd degree polynomial so i can divide it by x - 2

    asked by anonymous
  67. physics

    A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at 1.50 km/s in the +x-direction experiences a force of 2.25x10- 16 N in the +y-direction, and an electron moving at 4.75 km/s in the

    asked by Daniel
  68. English

    1. Doing sit-ups is is quite simple. 2. It is quite simple doing sit-ups. 3. To do sit-ups is quite simple. 4. It is quite simple to do sit-ups. [Can we use all the expressions? Are they all the same? Which ones do you use more often?] .

    asked by rfvv
  69. science

    How long does the polar night last in Antarctica?

    asked by rfvv
  70. English

    He recorded his life there in his diary. => He recorded his life in Antarctica in his diary. 1. Which life did he record in his diary? 2. Which life of his did he record in his diary? - He recorded his life in Antarctica in his diary. [Which question is

    asked by rfvv
  71. maths

    half the perimeter of a ractangular garden whose length is 4m more than its width is 36m.lengh of the garden will be?

    asked by shehzad
  72. science

    How do we define a hazard and a disaster in the context of the class, and what is the connection between a hazard and a disaster? Give an example of a hazard and the resulting disaster and describe the connection

    asked by ste
  73. science

    describe how the term risk is defined in different disciplines/fields,

    asked by ste
  74. science

    Discuss the probability density function (PDF) of a hazard and identify the main uncertainties in knowing the PDF for natural hazards.

    asked by ste
  75. Life orientation

    Explain trends and demand of a job market Why is it important to follow trends in a workplace

    asked by Anonymous
  76. Science

    For each of the following situations, explain the most likely cause of the error and error should be corrected. a. After aspirating 300 ul with P1000, a small air space is seen at the end of the tip. b. While aspirating 1 ml with a P1000, a small air

    asked by heyhi
  77. Math

    A shopkeerper lost 10%by selling an article for Rs 1200.at what price should he have sold the article gain 10%

    asked by Neha srivastva
  78. science

    what is a hazard? what is a disaster? the difference

    asked by jaylon
  79. Physical science

    A silver Christmas tree can be made by placing copper wire,shaped in the form of a tree,into a silver nitrate solution.The unbalanced equation for the reaction is:Cu+AgNO3=Cu(NO3)2+Age 9.1 define the term oxidation in terms of oxidation numbers (9.2) write

    asked by Thulani
  80. life orientation

    Why it is important for teenagers to be knowledgeable about risk behaviour?

    asked by xangxa lusanda
  81. science

    what is probability density function ? how do i use it?

    asked by jaylon