Jessy

Most popular questions and responses by Jessy
1. Physics Question......many thanks

A projectile is shot directly away from Earth's surface. Neglect the rotation of Earth. (a) As a multiple of Earth's radius RE, what is the radial distance a projectile reaches if its initial speed is one-fifth of the escape speed from Earth? ____ times RE

2. Physics help!!!!!!

A 5.0 kg particle and a 2.7 kg particle have a gravitational attraction with a magnitude of 2.2 10-12 N. What is the gravitational potential energy of the two-particle system? a) A 5.0 kg particle and a 2.7 kg particle have a gravitational attraction with

3. Finance

Fletcher Company's current stock price is \$36.000, its last dividend was \$2.40, and its required rate of return is 12%. If divends are expected to grow at a constant rate, g, in the future and if Rs is expected to remain at 12%, what is Fletcher's expected

4. Numerical Analysis

Use Taylor series expansions (zero through fourth order) to predict f (2) for f (x) = ln(x) with a base point at x = 1. Determine the true percentage relative error for each approximation.

5. Math

A small plane flying a banner in the shape of a rectangle the area of the banner is hundred and 44 square the width of the banner is one fourth the length of the banner what are the dimensions of the banner

6. Physics

If a thunderstorm is heard 5 seconds later. How far away did the lightning strike?

7. financial literary

Floyd employer purchase a health insurance plan that cost 825 per month Floyd page 105 toward the plan each month what is the annual value of the employer's contribution?

8. Trigonometry

Prove the following trigonometric identities. please give a detailed answer because I don't understand this at all. a. sin(x)tan(x)=cos(x)/cot^2 (x) b. (1+tanx)^2=sec^2 (x)+2tan(x) c. 1/sin(x) + 1/cos(x) = (cosx+sinx)(secx)(cscx) d. tan^2 (x)(1+1/tan^2 x)

9. English

Even though they are good friends, what is one argument seen in the play "The Night Thoreau Spent in Jail" between Henry and Waldo?

10. Physics

In using a pulley system,an Effort of 100N is needed to raise steadly a load of 800N.(a)what is the mechanical advantage?(b)if this Effort moves through a distance of 20m and the load is moved up a distance of 2m caculate the velocity ratio.

11. epidemiology

The prevalence of previously undetected diabetes in a population to be screened is approximately 1.5% and it is assumed that 10,000 persons will be screened. The screening test will measure blood serum sugar content. A value of 180 mg percent or higher is

12. english

what is the appositive inthis sentences Charles Lutwidge Dodson is better known by his pen name,Lewis Carroll.

13. Gravitation help..........thanks

A projectile is shot directly away from Earth's surface. Neglect the rotation of Earth. (a) As a multiple of Earth's radius RE, what is the radial distance a projectile reaches if its initial speed is one-fifth of the escape speed from Earth? ____ times RE

14. IUPUI

The prevalence of previously undetected diabetes in a population to be screened is approximately 1.5% and it is assumed that 10,000 persons will be screened. The screening test will measure blood serum sugar content. A value of 180 mg percent or higher is

15. physics

A block is projected up a frictionless inclined plane with initial speed v0 = 1.92 m/s. The angle of incline is è = 12.2°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?

16. Analytical CHM

Calculate the theoretical amounts of 0.1000 M NaOH titrant used to titrate 0.8 and 0.9 g KHP Please show step by step solution , i need the correct significant figures and units to finish up the rest of the lab correctly i found the answer but for some

17. statistics

To observe the effect of increasing sensitivity, assume a blood sugar screening level of 130 mg percent, with a sensitivity of 44.3% and a specificity of 99.0%. Set up a two by two table with the appropriate numbers in each cell. Calculate the following

18. Biochm I

The ∆Gº’ of hydrolysis of ATP is –35.7 kJ/mol. => Calculate the overall free energy change for the hydrolysis of ATP when [ATP]=3.8 mM, [ADP]=2.0 mM, and [Pi]=4.6 mM at 30 ºC Reminder: R=8.314 J.mol-1K-1. Use 273.15 for conversion of Celsius to

19. Math PLZ HELP!!!!

A tank that holds 4000 gallons of water will drain completely into a reservoir in 32 minutes. The volume of remaining water in tank after time t is given by the function: V(t)=4000(1-t/32)^2, 0

20. Physics....Orbiting Satellite

A orbiting satellite stays over a certain spot on the equator of (rotating) Venus. What is the altitude of the orbit (called a "synchronous orbit")? I found the radius and mass of Venus on the google, but I don't know what I should plug in the "T" if I use

21. Physics

Calculate the final speed of a skier who skis down a 70.8 m high hill, if her initial speed is 2.18 m/s

22. Analytical CHM Lab

I am filling out my neutralization titration data sheet and i did not understand how to find buret correction (ml) and corrected volume(ml) and Molarity of NaOH without buret correction and as well as with buret correction. in the lab we have used 50 ml of

23. Math

Find four consecutive integers, such that the product of the first and second integer minus 2 is equal to 3 times the product of the third and fourth integer.

24. Social Studies

Of the problems experienced by the Confederation Congress, which do you think was the most harmul? and why

25. physics

a plank of mass 5kg is placed on a frictionless horizontal table. further a block of mass 2kg is placed over the plank. A mass-less spring of natural length 2m is fixed to the plank by its one end. The other end of spring is compressed by the block by half

26. Finance

If you bought a share of common stock, you would probably expect to receive dividends plus an eventually capital gain. Would the distribution between the dividend yield and the capital gains yield be influenced by the firm's decision to pay more dividends

27. english

When did you memorize the patriotic poem, "Paul Reveres ride"? In the above sentence is the predicate did memorize? If so what part of the sentence would the word poem be??

28. predication?

what is difference between predicate predicator and predication? Clean up the most threatened areas. In grammar, the predicate is the main verb and all the words and phrases and clauses that go with it. http://www.answers.com/predicate Scroll down a bit

29. math

You make a purchase at a local hardware store, but what you've bought is too big to take home in your car. for a small fee, you arrange to have the hardware store deliver your purchase for you. You pay for your purchase, plus the sales taxes, plus the fee.

30. Numerical Analysis

show that the equation xcosx-2x2+3x-1=0 has at least one solution in [0.2,0.3]

31. geo

two capes located at africas southern tip Cape Agulhas and the Cape of Storms, which was renamed the Cape of Good Hope. Good luck

32. geo

what four countries possess islands in the caribbean sea http://www.lib.utexas.edu/maps/index.html =) h Name four countries that possess island in the Caribbean Sea Well it is Canada Islabn-jjjugdhjb;bvfjhbfjbjcvbghfj hgjh duighbjfg jfg jghjfgjfh;ahg

33. Finance

A company is planning to set aside money to repay \$100 million in bonds that will be coming due in 10 years. If the appropriate discount rate is 9%, a. how much money would the company need to set aside at the end of each year for the next 10 years to be

34. Chemistry.

Predict these reaction products. If a reaction takes place, balance the reaction if needed. If no reaction takes place then write no reaction. Cu+FeCl3--->CuCl3 + Fe Double replacement Al+HBr----> AgNO3 + KCL--->AgClKnO3 Double replacement

35. Physics

The electrons that produce the picture in a TV set are accelerated by a very large electric force as they pass through a small region in the neck of the picture tube. This region is 1 cm in length, and the electrons enter with a speed of 1 × 105 m/s and

36. physics

Two cars, A and B, travel in the same direction on a straight section of highway. A has a speed of 69.5 km/h, and B a speed of 84.3 km/h (both relative to the earth). (b) If A is initially 394 m in front of B, how long will it take for B to reach A?

37. english

What a most delightful quatrain Jamie has written. In the above sentence i need to identify the subject. I don't know if its quatrain or Jame. And I also need to tell what the form of the verb is. I think the verb is has written and if so is that

38. Math

Complete the square to find the vertex of each quadratic function. State the vertex. y=-x^2+5x-3 y= 5x^2+1/5x-10 2x^2+8x-2

39. chemistry

balance the following equation by half reaction method in an acidic medium: C3H8O + MnO4^- gives off C3H6O + Mn^2+

40. calcus/ math

Nick has enough wire to construct a 100m of fence. he wish to use it to form three sides of a rectangular garden,one side is along his building. 1)What dimensions should be choose in order to enclose the largest possible area? 2)Verify the result thus

41. physics

An electron with a speed of 1.1 × 107 m/s moves horizontally into a region where a constant vertical force of 3.6 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the

42. Math

I need help with this question. I need to know how to do the steps for it. (hope it makes sense) Question: Square root 2t+1 - 5 = - square root t

43. P-Chemistry

A closed vessel of volume 2.50 dm3 contains 100g of nitrogen (N2) and 100g of carbon dioxide (CO2) at 25 C. What are the partial pressures and mole fractions of each gas? Can you check my answers.Thank you. I got Partial Pressure for N2=34.95 atm CO2=22.24

44. English

What do you think the real Thoreau or Emerson would be like as a teacher today?

45. ANALYTICAL CHM

What are the possible sources of error in using a graduated pipet? in using a buret?

46. Math

Find two numbers, x and y, such that 10% of x is the same as 40% of y. Explain!

48. science

an oil tanker has a mass of 100 000 tonnes. its kinetic energy is 200 MJ.Calculate its speed. (1Tonne=1000kg, 1 MJ= 1 Megajoule= 1 000 000 J) PLEASE HELP

49. math

In a factory of electronic items, the total cost of production, expressed in thousands of dollars, is given by the function C(x)= (x^2-x+2)/x+1 where x belongs to [0;5] and expressed in hundrends of items produced. 1) calculate in dollars the total cost of

50. child care

hello i need some help with those questions (the legal requirements relevant to inclusive practice.) and the importance of inclusive practise in a pre school setting. thank you

51. chemistry

covert 19.4g NH3 to moles

52. chemistry

An Excess of hydrogen sulfide reacts with 42 moles of oxygen. How many moles of each product is formed using the BCA Table?

53. clause patterns

can someone correct these sentences and help me understand this? 1.I remember the reasonableness of my father's arguments. SPOA or is this not adverbial? 2.We are in a bit of a mess. what is in a bit of a mess? 3.Do you call yourself a porter? is a porter

54. P-Chemistry

A closed vessel of volume 2.50 dm3 contains 100g of nitrogen (N2) and 100g of carbon dioxide (CO2) at 25 C. What are the partial pressures and mole fractions of each gas?

55. world history

the Liao empire did all of the following exept a. create a chinese style dynasty b. conquer southern china c. adopt chinese writing d. use the civil service system my answer D

56. College physics

How much work (kJ) must a car produce to drive 239 miles if an average force of 369 N must be maintained to overcome friction?

57. math

A person a pair of shoes is purchased each year and has noticed that the price has increased as a geometric progression. If the price increase in the last two years was 25 dollars and in the last year was 15 dollars. a. What was the price of the pair of

58. Math

Find the equation of the curve that joins the following points. Hint: Use common differences. a. The zeros of the function are 3,-1,-5. The y-intercept is 15. Find the function. b. (1,1), (0,1), (2,-5), (-1,-5)

59. Trigonometry

Given the equation 2cos^2x+sinx-1=0 1. Explain why this equation cannot be factored. 2. Use a trigonometric identity to change the equation into one that can be factored.

60. Math

There are approximately 131,000 cases of colorectal cancer in the US each year ( data as of 1998). The US pop is approx 270 million. What's is the probability that a randomly selected person in the US will develop this type of cancer during a year? What

61. Numerical Analysis

show that f(x)=xsinπx-(x-2)lnx has at least one zero derivative in [1,2]

62. Numerical Analysis

Use Taylor series expansion (degree 0 to 6) about x’=pi/4 to find an approximation for f(x) = cosx at point x=pi/3 and then compare the result with the exact data

63. physics

Two carts with masses of 4.3 kg and 3.0 kg move toward each other on a frictionless track with speeds of 5.7 m/s and 4.4 m/s, respectively. The carts stick together after colliding head-on. Find their ﬁnal speed. Answer in units of m/s

64. French I

We're supposed to complete with the indicated verb. 1. Romain et Christophe _______ un vol Air France. (choisir) 2. Quand Romain fait enregistrer ses bagages, il _______ aussi sa place. (choisir) 3. Pendant le voyage, les deux garcons ont faim. Ils _____

65. COM220

Strategies for gathering information Appendix D Is the source the name of the article or the reference who wrote it. What goes in the source box?

66. math

Can you tell me the answer to: 3 1/2 = ______x 4 3/8. I keep coming up with 1 1/4 but it doesnt work out when I multiply it back. HELP!!!!

67. english

Many notable poets often lived in the New England states. In the above sentence i need to identify the subject modifiers in the sentence and the descriptive adjectives. I believe the adjectives are New England, many and notable. What then would be the

68. english

Invite Jim on our fishing trip. In the above sentence can you tell me what words modify the predicate. I think the predicate is invite but I'm not sure. if so would on our fishing trip be the predicate modifiers. And also would Jim be the subject of the

69. english

The city of munich plans many interesting festivities. Would you capitalize city and munich in this sentence?

70. science

covert 12.3 g of sulfur trioxide (SO3)to moles

72. Physics

A rope of mass m uniformly distributed along it's length l can slide without friction on a horizontal table. At instant t=0 the hanging part of the rope has a length b, and the rope is held at rest. When it is left, the rope begins to slide. At instant t

73. Finance

What is the value of 15-year corporate bonds, with a coupon rate of 9%, if current interest rates on similar bonds is 8%? How much would the value change if interest rates increased to 10%? Under what conditions will this bond trade at par (face value)?

74. P-Chem

Can you check my answer? Thank you What is the molar mass of a gas that behaves ideally (i.e. obeys the perfect gas law pV=nRT) if it has a density of 1.92 g dm-3 at 150 kPa and 25 C? I got; M=p(density)RT/(P)=31.7 kg mol^-1

75. Pre-algebra

1/5(95)-2•4+5

76. Math

John has 5 computer games. Julian has twice as many computer games as John. How many computer games do they have in all?

77. math

A country seen its population grow each year in the eighth of what it was the previous year. At that time the population is successfully a. duplicate b. triplicate

78. math

A businessman invested 10000 dollars in bonds paying annual interest of 8%. If you invest the proceeds in the purchase of new bonds, which will have the capital after 10 years

79. math

For a soccer game has been on sale 4 types of locations. The ticket prices for different locations form a geometric progression. If a person bought a ticket for each locality would spend 32.5 dollars and would see that the price of the most expensive is

80. math

A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the

81. math

Given the function f(x) =2^x and g(x) =x-2 and h(x) =2x-3 what compositions of function will result into y= 2^(x+1)-5

82. Math

Is f(x)= -x/x^2-1 odd, even or neither of the two functions?

83. Math

If 4-jx-x^2 is divided by x-4 the remainder is -4. Find k.

84. Math

Factor: (x^3)(z^6)-27y^9 81x^4-16y^4 2x^3+16y^3

85. Math

Complete the square to find the vertex y=5x^2+1/5x-10

86. Math

Determine the remainder of the following polynomial by remainder theorem. x^3-4x^2+x-6 divided by x+2. If x+2 is a factor, determine the remaining factors.

87. Trigonometry

Solve for the following equation to the nearest degree if needed for 0 less than equal to x less than equal to 360. sin^2x=cosx 2sin^2x+cosx-cos^2x=0

88. Numerical Analysis

We know that e (base of the natural logarithm) is 2.7182818. If we estimate this number with XA = 2.71828, what is the significant number of digits that XA approximates the e?

89. physics

Consider a square ABCD of side 10cm and total mass 10kg. Let O be the center of the sqaure. We cut a square of corners O and C. Find the central mass of the obtained shape after removing the small cutten sqaure.

90. math

Im greater than 99 but less than 1000, two of my digits that are not next to each other are the same, my tenth digit can't be greater and is more than my hundreths digit. What number am I?

91. english

Many notable poets often lived in the New England states. In the above sentence i need to identify the subject modifiers and the descriptive adjectives in the sentence. I believe poets is the subject so would many and notable be the modifiers and if that

92. english

My grandmother happily presented the family heirloom at the wedding. In this sentence i believe heirloom is the direct object, presented is the verb but i need to know what the subject modifier is and is happily an adverb that describes presented?

93. english

The German Oktoberfest actually begins in September. could you tell me what the predicate modifiers are and what the number of the predicate is. I am thinking that begins is the predicate.

94. english

The city of Munich plans many interesting festivities. In the above sentence i need to identify the nouns in the objectice case. I also need to know what part of the sentence is the word festivities. I know the subject is Munich and the form is simple.

95. english

In the following sentence i need to know what are the nouns in the objective case and what part of the sentence is the word festivities? I know that Munich is the subject and the form is simple but if someone could help with the other two questions that

96. geography

where is the safe place to live in a island and why

97. english

I have to write a research paper.My paper topic is Explain how the treatment of women in !@#\$%^&en's novel Hard Times reflects the Victorian age. I SHOULD HAVE A CLEAR THESIS IN THE INTRODUCTORY PARAGRAPH, A CLEAR LINE OF DEVELOPMent and arguments.Title

I got a letter from university,it tells me that they offer me the admission on summer 2007, does it mean I will continue in fall 2007? I should think so, but to be sure, you need to call the admissions office. Just tell them who you are and that you're