# Questions Asked onOctober 31, 2008

1. ## math

This is an SAT prep question. Senai customized her bicycle by exchanging the front wheel for a wheel that had one half the diameter of the back wheel. Now Senai rides the bicycle, how many revolution does the front wheel make for each revolution on the

2. ## Physics

A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. (Intro 1 figure) The spring has a spring constant k, the ball has a mass m, and the ramp rises a height y above

3. ## physics kinetic energy

a) if a particle's speed decreases by a factor of four, by what factor does its kinetic energy change? b) particle A has three times the mass and twice the kinetic energy of particle B. What is the speed ratio VA / VB?

4. ## math

Suppose a single die is rolled, Find: a)P(6, given that an odd number was rolled) b) P(5, given that an odd number was rolled)

5. ## math

In the xy-plane, line l passes through the origin and is perpendicular to the line 4x+y=k, where k is a constant. If the two lines intersect at the point (t,t+1), what is the value of t? I tried drawing a picture of the problem described above, but I don't

6. ## math

m=6/7(5,-7) the equation of the line is y=

7. ## chemistry

a compound contains only c,h and o. c=48.65% and h=8.11%.a)calculate its emperical formula

8. ## math

suppose a pair of dice is rolled. Consider the sums of numbers on the top of the dice. Find the probabilities: a) P(5, given that the sum are odd) b) P(odd, given that the sum rolled is 5) c) P(7, given that one of the dice rolled was odd)

9. ## Chemistry

Ca + F2 --> CaF2 The mass of CaF2 that results from the reaction of 3.00 g of calcium and 2.00 g of fluorine is 4.02 g. What is the percent yield? (Atomic weights: Ca = 40.08, F = 19.00).

10. ## HS Calculus/math

Find the Parametrization for the left half of the parabola y=x^2-4x+3

11. ## HS Calculus/math

x=2sint y=-3cost 0

12. ## Geography/Social Studies

Find the destination using the clues below. With easy access to the bountiful sea, it's no surprise that this place developed into a leading fishing and whaling port in the 18th century. Typical of port towns with moving (shifting) sandbanks (or sandbars),

13. ## Social Studies

I am trying to find something that starts with the letter X that is related to the Civil War, can anyone help me?

14. ## algebra

One number is twice another. The sum of their reciprocals is 3/10. Find the number.

15. ## bio

how does acute pancreatitis affect organs of the digestive system? does anyone know its answer?

16. ## civics

what example can I write about the rights that the 3rd amendment protects?

17. ## math

flip a coin 3 times a) what are the odds in favor of getting exactly 2 heads b) what are the odds against getting at most 1 tail

18. ## math

Which is more probable. a) flipping a coin 3 times and obtaining at least 2 heads b) flipping a coin 4 times and obtaining at least 2 heads Justify your answer

19. ## math

In rolling a pair of dice, suppose you win \$5 if the sum is 10 but lose \$2 if the roll is "doubles." If the price to play is \$1, would it be a fair game? Justify your answer.

20. ## chemistry

a)indium-115 has a half life of 4.5 hours. if you start with a 12.0-mg sample of indium-115, how much will remain after 13.5 hours? b)how much of a 3.50-mg smaple of nickel-63 will remain after 368 years? the half-life of nickel-63 is 92 years?

A radioisotope has a half-life of 4 days. How much of a 20-gram sample of this radioisotope remains at the end of each time period? 1) 4 days 2) 8 days

0.42 -0.163

23. ## math

Suppose you toss a coin and it you win a dollar if it comes up heads. If it comes up tails you toss the coin again. This time you get two dollars if it is heads. If it is tails you toss it again. This time you win four dollars if it is heads, but if it is

24. ## math

flip a coin 3 times a) what are the odds in favor of getting exactly 2 heads b) what are the odds against getting at most 1 tail

25. ## math

3-1/2y=8x what is the slope and y-intercept

26. ## math

4y+6x+7=10+6x what is slope and y-intercept

27. ## Algebra 2

Linear Programming Your club is making boxes and plant hangers to sell as a fundraiser. Your profit is \$10 for a box and \$8 for a hanger. How many boxes and hangers should you make in order to maximize your profit under the following conditions A) lumber

28. ## math

(6,4)and (8,-8) find the slope if it exists, of the line containg the pair of points

29. ## math

While shopping for an air conditioner, Adam Bryer consulted the following table giving a machines BTUs and the square footage that it would cool. Ft^2(x) BTUs(y) 150 5000 175 5500 215 6000 250 6500 280 7000 310 7500 350 8000 370 8500 420 9000 450 9500 a.

30. ## information technology

How would you describe property management system (PMS, point-of -sale(POS) and Accounting uses and interelation within the hospitality industry?

31. ## Physics - continued

Would it be sq(2ks^2/m)?

• Consider the following scenario: Your company sells its products in many different countries. The Director of Exporting and Trade has decided to take on a number of interns over the summer to help the company communicate with its outlets within the

33. ## chemistry

Ammonia acts as a base in aqueous solution; Kb is equal to 1.8 x 10-5. What is the Ka for the ammonium ion NH4+ in aqueous solution?

34. ## chemistry

The redox reaction below occurs in acidic solution. Balance it with the smallest whole number coefficients and determine the coefficient for H+. MnO4-(aq) + HNO2(aq) ---> Mn2+(aq) + NO3-(aq)

35. ## chemistry

Which of the following has the central atom with the lowest oxidation number? a. CO32- b. NO3- c. ClO2- d. SO42- e. PO43-

36. ## psy

need some information to compare and contrast this trait below: I am confused. Neurophysiological substrates Traits are biological patternings in the central nervous system that cause behavior to occur and account for the consistencies in socioemotional

37. ## math

find an equation of the line having the given slope and containing the givin point m=2,(7,5) the equation of the line is y=

38. ## Windows XP

You are assisting a salesperson who has called into the Help Desk with a problem. The user’s laptop has a single hard drive, and he is currently using the laptop on the road while visiting potential sales partners. At one sales site, the technical staff

39. ## physics help 2 please!!

Mass A (7 kg) and mass B (10 kg) sit on the ground, 2 m apart. a.) What is size of the the gravitational force: on A from B? N on B from A? N b.) What is the size of the gravitational force: on A from the Earth? N on B from the Earth? N once again, i am

40. ## physics help 3!! **

Based on the following data about planet X (which orbits around the Sun): Planet X's distance from Sun = 3.6*1012 m Planet X's radius = 2*106 m Planet X's mass = 8.2*1022 kg a.) Find gx, the size of the acceleration due to gravity on the surface of Planet

41. ## physics help 4 please!!

Two turtles (each 2 kg) sit on an approximately massless branch in the water. They sit on opposite sides of the branch's center, each 3 m away. The branch (10 m long) is spinning at 2 rad/s about its center (nearly without friction). Now, if both turtles

42. ## HS Calculus/math

suppose that in any given year, the population of a certain endangered species is reduce by 25%. if the population is now 7500, in how many years will the population be 4000?

43. ## HS Calculus/math

Solve the equation cotx=4 in the interval 0

44. ## Stem Cells

Are adult stem cells found only in adults human beings or all human beings regardless of age?

45. ## reimbursement methodologies

under major maedical insurance, \$250 must be paid before the company assumes liability. who responsible for paying the \$250?

46. ## reimbursement methodologies

the ability to accurately predict yearly expenses was one reason that large companies decided to A. offer HMO programs. B. enroll in manage care plans. C. self-insure their employees. D. offer medical spending plans.

47. ## college

Assignment: · Explain the cultural differences in approaching negotiations that predominate in two different countries. Be sure to include: o Negotiation models o Negotiation styles o Outcome preferences · Imagine a business person from each of the

48. ## college

Describe the cultural bases of negotiation conflict in 250 to 300 words, taking into account the following: o What specific factors underlie negotiation conflict o Why the underlying factors of negotiation conflict are difficult to recognize o How one can

49. ## chemistry

How many total moles of ions are released when each of the following samples dissolves completely in water? 30.2g of Ba(OH)2 8H2O

50. ## Chemistry

Given the chemical reaction: N2+3H2--->2NH3 If 20 molecules of nitrogen react with 30 molecules of hydrogen to from ammonia, what is the total number of molecules present after the reaction goes to completion?

51. ## accounting, departmental accounts

P/S: Pls help me to solve this problem. i really don't get it and i have to present the answer in front of the classroom by next week. from the following list of balances you are required to prepare a departmental trading and profit and loss account in

52. ## chemistry

how can i describe the test to see if ACIDS ar covalent or ionic what do the results of such a test show

53. ## Chemistry

I've been given the Volume of Concentrated NaOh solution (mL) and also the Concentration of Concentrated NaOh solution (M). I also have the volume of stock solution after dilution (mL). The question is asking the approximate concentration of stock solution

54. ## physics

A long uniform rod of length 4.76 m and mass 5.48 kg is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest in a vertical position as in the figure. (A) At the instant the rod is horizontal, find its angular speed.

55. ## physics

Use the period of the earth (2.34 y), its mean orbital radius (1.496 × 1011 m), and the universal gravitational constant (6.673 × 10−11 N · m2/kg2) to calculate the mass of sun. Answer in units of kg.

56. ## chemistry (continued)

i kinda understand waht you're saying. to be a bit more clear this is from a lab, and here are the volumes we retrieved: Volume of Concentrated NaOH soultion (mL) = 9.00 mL Concentration of Concentrated NaOH soultuon (M) = 6.00 M Volume of Stock Solution

57. ## math

which store is cheaper kroger or meijers?

58. ## Chemistry.

hi again, thanks to the previous help i got the first part of the question. the second part builds on the first part as we used that stock solution for titration of the next. we are now given: Concentration of Standard Acid Soultion (M) = 0.100 M Volume of

59. ## the inspection process

the main reason real estate agents use home inspections is to?

60. ## chemistry

How many total moles of ions are released when each of the following samples dissolves completely in water? ? 3.70g of CuSO4 5H2O

61. ## Statistics

An automobile in surer has found that repair claims have a mean of \$1520 and a stardard deviation of \$770. Suppose that the next 100 claims can be ragarded as a random sample from the long-run claims process 1. What is the mean and standrd deviation of the

62. ## math

okay I need to find the slope for 8x=7y+63

63. ## healthcare

I need some help with describing some approaches to measuring patient outcomes. The links that were provide really didn't help me.

64. ## math

I do not even know where to start with this one, can someone help? the peak of a mountain is 19,340 ft above sea level. what is the integer that best expresses the given number?

65. ## Physics

A long uniform rod of length 6.66 m and mass 6.74 kg is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest in a vertical position as in the figure. Question 1: At the instant the rod is horizontal, find its angular

66. ## Georgia Studies

How was the name Ku Klux Klan brought into being? What were some of the harsher things that they did? Thanks -Mysterychicken

67. ## accountancy

2. The ledger accounts of M Ltd. show the following balances: Rs. 14% Preference share Capital 3,00,000 Securities Premium 20,000 Investment Allowance Reserve 50,000 General Reserve 80,000 Profit and Loss Account 38,600 The company redeems preference

68. ## math

a diver dives to 84m. If the diver rises 5 meters per min for 10 min. Where is the diver in relation to the surface. The answer would be 34 meters right?

69. ## insurance

what is the corporate structure of Manulife Financial Corporation?

70. ## chemistry

sorry to keep bugging you, but if it makes you feel better i am understanding it more. what if you have the same numbers, but you are trying to find the concentration of an UNKNOWN acid. all you have is: Volume of Unknown Acid Volume of Stock Solution

71. ## SCI 125

What are 3 freshwater resource issues? What are 3 ocean water resource issues? Choose one fresh or ocean water resource challenge and describe in detail why the issue has become a problem and how human activities have contributed to the problem.