# Questions Asked onJune 18, 2015

1. ## PHYSICS

27. Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown.

2. ## Chrmistry

Aqueous potassium phosphate was mixed with aqueous magnesium chloride, and a crystallized magnesium phosphate product was formed. Consider the other product and its phase, and then write the balanced molecular equation for this precipitation reaction

3. ## Chemistry

Ethanol is the active ingredient of alcoholic beverages. It is also s a possible replacement for gasoline. The complete combustion of ethanol forms carbon dioxide and water. CH3CH2OH + O2 => CO2 + H2O Balance the equation. What mass of carbon dioxide is

4. ## PreChem

Classify each of the reactions. precipitation, acid-base neutralization, redox C2H4(g)+3O2(g)----> 2CO2(g)+2H2O(l) Cu(s)+FeCl2(aq)---->Fe(s)+CuCl2(aq) HI(aq)+LiOH(aq)---->H2O(l)+LiI(aq)

5. ## science

this is bio what would happen to the forest environnment if the lynx started being hunted for their skins?

6. ## Algebra

Find all complex numbers $z$ such that $|z|^2-2\bar z+iz=2i.$

7. ## physics

In the following situations identify the agent exerting the force and the object on which it acts .State the effect and kind of force in each case. a>Falling of rain drops. b>A horse pulling a cart. c>A car coming to rest once its engine is switched off.

8. ## Statistics

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? What is the Null and alternative hypothesis.

9. ## Calculus

A 0.9 ml dose of a drug is injected into a patient steadily for half a second. At the end of this time, the quantity, Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.4% per second. Using formulas, express Q as a

10. ## Public speaking

Saying "gonna" instead of "going to" is an issue of: A. Body movement B. Eye contact C. Articulation D. Timing

11. ## Math Trigonometry

A man is 6 ft. tall casts a shadow of 8 ft. find the angle of elevation of the sun.

12. ## Geography

Describe service delivery protest in your community or neighbourhood about one page

13. ## appliances

What is the purpose of the external jumper wire on a variable-speed reversing drill switch

1. The UV index on a sunny day can be modelled by the function y= -0.15(x-13)^2+7.6 , where x represents the time of day on a 24-h clock and f(x) represents the UV index. At what time(s) was the UV index 7? 2. Determine if each system has one, two, or no

15. ## geometry

box of cereal measures 10 in .wide.12in . high, 3in deep .all surfaces made of cardboard and total overlapping cardboard in the box is 7in squared , how much cardboard is used to make a cereal box including the amount of overlapping parts ?

16. ## Criminal Justice

Social Darwinism: A. explains corporate crime. B. is associated with Jacques Rousseau. C. supports aid to the disadvantaged. D. has as its credo the phrase "survival of the fittest." According to my book a,b,c are wrong. And answer D im not sure i don't

17. ## Math Geometry

The sun rises at 6am; At noon the sun is directly overhead. The height of a pole is 8m tall. What is the length of the shadow at 11am?

18. ## saraswathi vidyalaya

find all the zeroes of 2x4 - 9x3 + 5x2 + 3x-1 if two of its zeroes are 2+root3 and 2-root3

19. ## maths

Two men and six boys can cut a field in 3hours. If the men work at 3/2 times that of the boys, how many men are required to cut the field in 2hrs.

20. ## Narayana

A triangle whose sides ABC a line Ap drawn to the side BC such that ap is not a median or altetude?

21. ## ncedo senior secondary school economics

Detailed explanation with graphs of how the price of milk would have been determined in the absence of government involvement in the market

33. ## Ethics

Traits of character that dispose a person to act in a moral fashion are typically referred to as:

34. ## UNIBEN Demonstration secondary school, benin city,Nigeria

how to calculate mole fraction

Do you know what the roots of early animosity leading to the cold war is? Plz

36. ## improving writing

I have written two paragraph about the problem and solution plz tell me is it ok if any grammatical mistake or punctuation error is then plz tell me. the content of this paragraph meets the desired topic as per the exam requirements. plz, guide . below is

1. Solve the system of equations by elimination.y=2x^2-2x-3 and y=-x^2-2x-3 2.The system of equations y=-5(x+4)^2-4 and y=8x^2+64x+124 has _____ solution(s). 3. Determine the value of k in y=kx^2-5x+2 that will result in the intersection of the line

38. ## Maths

A hand fan is made by stitching 6 equal size triangular strips of two different types. The dimensions of equal strips are 25cm, 25 cm and 14 cm.Find the area of each type of paper needed to make the hand fan.

39. ## B. My gange girls sen sec school (science)

A hot plate of an electric oven connected to a 220V line has two resistance coils A and B, each of 24 ohms resistance, which may be used separately, in series, or in parallel. What are the currents in the cases?

40. ## biology help

Describe the hormeostatic control that occurs in the body of a normal person to increase blood glucose level when they are low

41. ## psy410

parkinson's disease huntingtons disease and alzheimers disease are all types of major neurocognitive disorder

42. ## Chemistry

PLS HELP ME(1)Write a balanced equation in each case dilute hydrochloric reacts with[i]ZnCO3[ii]CuCO3 (2)Discuss how hydrocarbons contribute to the formation of ozone in the atmosphere.I'M CONFUSED I NEED HELP!

43. ## psychology

The biosocial approach suggests that gender differences are based on: a. the hormone and neurological differences between men and women. b. how men and women think about their environment. c. the physical ability of men to protect the home and of women to

44. ## chemistry

A sample of gas has an initial volume of 20.9 L at a pressure of 1.4 atm If the sample is compressed to a volume of 12.9 L: , what will its pressure be? (Assume constant temperature.) Thank you

45. ## Language Arts

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. While being an extra on a movie set may seem fun and

46. ## English

I'm looking for a pair of gloves. 1. Are they for you? 2. Is it for you? ======================== Which response is right?

47. ## English

1. This is a long-sleeved shirt. 2. This is a longsleeved shirt. 3. This is a long-sleeve shirt. 4. This is a longsleeve shirt. =================== Which ones are grammatical?

48. ## physics

A student of weight 810 N was sent to another planet called Nerdland. If Nerdland has a mass that is 4 X the mass of the earth and a radius that is 1/2 the radius of the earth, what would be the mass in kg of the student when on Nerdland? what would be the

49. ## Chemistry

(1)Write a balanced equation in each case dilute htdrochloric reacts with[i]ZnCO3[ii]CuCO3 (2)Discuss how hydrocarbons contribute to the formation of ozone in the atmosphere

50. ## statistics

P( 1.05 < Z < 2.05) Need help solving please

51. ## math

A fisherman has estimated that it takes 6 minutes to paint each square foot of the hull of his boat. How much time should the fisherman allow for the painting of the hull, if the hull were composed of two sides, each 31.5 feet by 8.00 feet? 1512.0 hours

52. ## math

can someone elxplai to me how to solve this differential equation. dy/dx= (x^2+3y^2)/2xy

53. ## Languarge Arts

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. When it looked like all hope was lost for winning the

54. ## English

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. The group of friends _________ around the coffee shop

55. ## Language Arts

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. The fact that the lottery winner flaunted his newly

56. ## LA

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. While most people in Los Angeles will go to a Dodger's

57. ## System of Equation

___________ involves isolating the variable in one equation and replacing the same variable in the other equation with this expression.

58. ## finance-1

the Herandez family is facing some financial pressure with a combination of 66000 dollars of income.

59. ## English

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. While most museum visitors displayed respect for the

60. ## English

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. 1. When it looked like all hope was lost for winning

61. ## Maths

Bobbt jannet made jam from 8kg strawberries and 4 kg sugar, how much did it cost to make 1kg of jam if 1kg of strawberries cost 6.50 and 1 kg of sugar cost 2.10?

62. ## English

I'm looking for a shirt for my dad. =============================== Does 'for my dad' modify 'shirt' or 'looking'? Is 'for my dad' an adjective phrase or an adverbial phrase?

63. ## math

round off the following to nearest 10000 1,82,937

64. ## algebra

Shoe O Rama is having a 20 % off sale this friday. Which equation below shows how to find the sale price, s, as a function of the original price, p?

65. ## Crestwood

A bag contains 3 yellow, 4 white, and 8 blue marbles. How many samples of 2 marbles are possible?

66. ## psy 410

Which of the following is NOT usually one of the effects of abuse on a child?

1. Suppose the height, h, in feet, of a trampolinist above the ground during one bounce is modelled by the quadratic function h(t) = -16t2 + 42t + 3.75 . For what period of time is the trampolinist at least 22 ft above the ground? Round your answers to the

68. ## Math (Need help Urgent)

1. Graph the solution to the inequality y ≤ -2(x - 2)2 - 2 ?

69. ## physics

A body is projected at an angle of 30degree to the horizontal with a velocity of 150metre per seconds.Calculate the time it takes to reach the greatest height,take g=10metre per seconds square and neglect air resistance.

70. ## stats

A sample has a mean of M = 73 and a standard deviation of s = 5

71. ## Math

the ratio of Simone's pocket money to Fiona's pocket money was 2:3. After Fiona had received \$5 from her mother, the ratio of Simone's pocket money to Fiona's pocket money became 4:7. how much pocket money did both of them have at first?