# colleen

Most popular questions and responses by colleen
1. ## Chemistry

At 298 K, the Henry\'s law constant for oxygen is 0.00130 M/atm. Air is 21.0% oxygen.At 298 K, what is the solubility of oxygen in water exposed to air at 1.00 atm? At 298 K, what is the solubility of oxygen in water exposed to air at 0.896 atm? If

2. ## physics

A coin is placed on a vinyl stereo record that is making 33 1/3 revolutions per minute on a turntable. In what direction is the acceleration of the coin? Find the magnitude of the acceleration when the coin is placed 18 cm from the center of the record.

3. ## physics

A crate with mass 32.5 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 140 . How far does the crate travel in 10.0s? What is its speed at the end of 10.0s?

4. ## physics

A circular steel wire 2.00 m is to stretch no more than 0.25 cm when a tensile force of 400 N is applied to each end of wire. What minimum diameter is required for the wire?

5. ## PHYSICS

What is the potential energy for an 800 kg elevator at the top of Chicago's Sears tower , 440 m above street level? Let the energy be zero at street level.

6. ## physics

The upward normal force exerted by the floor is 620 N on an elevator passenger who weighs 650N. What are the reaction forces to these two forces? Is the passenger accelerating? If so, what are the magnitude and direction of acceleration?

7. ## HIS 104 WORLD CIVILIZATIONS 11 QUIZ

One of the results of the Industrial Revolution was Which of these was not a feature of working class life in early industrial societies The advantages that led Britain to the Industrial Revolution included

8. ## physics

Two uniform spheres , each of mass M and radius R, touch one another. What is the magnitude of their gravitational force of attraction?

9. ## physics

An earth satellite moves in a circular orbit with an orbital speed of 6200m/s. a) find the time of one revolution. b) find the radial acceleration of the satellite in its orbit.

10. ## Gen Chem II

A gas-forming reaction produces 1.60 m3 of gas against a constant pressure of 127.0 kPa. Calculate the work done by the gas in joules. Please explain. Thanks!

11. ## Math

A 36 inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece find the length s of all three pieces

12. ## Life orientation

What roles and responsibilities do the media have in reporting human rights violations in a responsible manner

13. ## physics

the hammer of a pile driver weighs 3800N and must be lifted vertically 2.80 m at constant speed in 4.00 s . What horsepower must the engine provide to the hammer?

14. ## Math

Cantaloupe is priced at \$0.69 per pound. If a cantaloupe weighs 3.241 pounds, how much will it cost? Round to the nearest cent.

Using the simplex method, solve the following linear programming problem: Maximize: P= 5x+2y Subject to: 4x+3y < or equal to 30 2x-3y < or equal to 6 x > or equal to 0, y > or equal to 0.

16. ## science

Rebecca is studying the range of growth of tomato plants. She measured the following data in the fourth week of growing her plants. tomato plant measured growth 1 1.5 cm 2 6.5 cm 3 7 cm 4 6.5 cm 5 3.25 cm 6 7.75 cm 7 5.5 cm 8 6 cm Given this data, what

17. ## physics

A loaded elevator with very worn cables has a total mass of 2200kg, and the cables can withstand a maximum tension 28 000N a) what would be the maximum upward acceleration for the elevator if the cables are not to break? b) what would be the answer to part

18. ## statistics

Suppose a large shipment of microwave ovens contained 18% defectives. If a sample of size 228 is selected, what isthe probability that the sample proportion will be greater than 14%? (Round your answer to 4 decimal places)

19. ## Science

Assume the speed of a nerve impulse is 100 m/s. How does this compare to the speed of electricity in a copper wire (approximately 3.00*10^8 m/s)? What does this tell you about the flow of electrons in a wire compared to the movement of ions in a membrane?

20. ## social studies

Have you learned something new about your own racial, ethnic, or cultural history?

21. ## Pre Algebra

What is the function rule when the input is 0,1.2.3 and the output is 5,4,3,2?

22. ## Physics

Essay Question: discuss whether or not it is possible for an object to be increasing in speed as its acceleration is decreasing. For either position you take, use examples as part of your explanation. CAN SOMEONE HELP SUGGEST AN EXAMPLE THAT WOULD HELP

23. ## physics

What average force is required to stop an 1900 car in 6.0 if the car is traveling at 80 ?

24. ## Science

Adam suffers from severe emphysema. Gas exchange in his lungs is not adequate, and he requires supplemental oxygen. But even though his blood carbon dioxide levels are elevated, his blood pH is close to normal. Considering the urinary system, explain how

25. ## statistics

If a spinner labeled 1-7 was spun 150 times, what is the probability of getting a prime number?

26. ## accounting

Wilson Reed, the bookkeeper for Home Interior Improvements and Designs Company, has just finished posting the closing entries for the year to the ledger. He is concerned about the following balances: Capital account balance in the general ledger: \$ 48,550

27. ## Chemistry

I need to be able to tie in acetic acid and boric acid. To decipher properties of acid-base chemistry and how they adhere to Le Chatelier’s principle. I appreciate any input....

28. ## History

The article by Tom Watson and deals with the Negro Question in the New South. What was Watson answer to that question.

the base of the great pyramid is a square with an area of 571536 ft squared. If one of the sides of a similar figure is 5 cm what is the area of the figure? How can I solve this?

30. ## english

what is a immigrant women and what is a refugee women?

31. ## economics

Which combination of fiscal policy actions would be most stimulative for an exonomy in a deep recession? a) increase taxes and government spending b) decrease taxes and government spending c) increase taxes and decrease government spending d)decrease taxes

32. ## geometry

In right triangle ABC, measure of angle ACB= 90 and segment CD is the altitude to the hypotneuse AB. Ad= 6 cm and BD= 4 cm. Find the length of segment CD to the nearest hundredth.

33. ## MATH

I know a polygon has many sides am I correct to say that a concave polygon has two sides.

34. ## Chemistry

I wanted to find out what the difference is between acetic acid and boric acid and how they relate to the LaChatelier's principle.

35. ## CHILD CARE

SAMUEL IS BEGINNING TO REALIZE THAT HE HAS A TALENT FOR ART, AND HE FEELS GOOD ABOUT IT WHICH OF ERIKSONS STAGES MAY HE HAVE REACHED(A) AUTONOMY VS SHAME (B) INDUSTRY VS INFERIORITY ( C)INITIATIVE VS GUILT (D)IDENTITY VS ROLE CONFUSION

36. ## accounting

What entry in account journalizing this would be: Mr. W made a additional payment of 2k by issuing a 60 day note. Thank you!

Find warranty period (in days) for a washing machine whos average (mean) life is 6 years and standard deviation of 2.5 years. Assume 365 days in a year.

38. ## Chemistry

How many grams of H2SO4 will be needed to react with 69.3gof NaOH? Can you list steps so I can understand this? Thanks

39. ## English

A Thirteen Letter Word That Means "A Whole Bunch". The Thirteen Letters Are As Follows: NOSOREGGTIACN

40. ## math

What is an equivalent expression of 8 • n - 18 + 6 - 5 • n

41. ## child care exam number 00390500

proximal development

42. ## Anatomy

Explain why a surgeon would use subq sutures duing abdominal surgery, but not during an open reduction and internal fixation of a fractured radius

43. ## physics

a) compute the kinetic energy in Joules of a 1600kg automibile traveling at 50.0 km/h. By what factor does the kinetic change if the speed is doubled?

44. ## Geometry

The vertices of ∆ABC are A (-2,5), B(-2,4), and C(-5, 3). If ∆ABC is reflected across the line y=-2 to produce the image ∆A’B’C, find the coordinates of the vertex A’ if ∆ABC is reflected across the line x= -2.

45. ## Math

On Monday at noon, the temperature was 23oF. By 9 pm it was -4oF. On Tuesday at noon, it was 18oF. By 9 pm it was -11oF. On which day did the greater temp. change occur?

46. ## His 104 civilization 11

the Indian ocean was largely spared large-scale warfare because

47. ## 104 cilivi history

the Indian ocean was largely spared large-scale warfare because

48. ## math

how to draw a right triangle with one acute angle measuring 75 degrees and a leg of 5cm on a side of the 75 degree angle

49. ## HIS 104 civilizations 11 quiz

THE Monroe Doctrine emphasized

50. ## 104 world civilizations 11

The economic exploitation of colonies included

51. ## health

What is the eleven letter word that describes the process by which the alcohol leaves the body.

52. ## history

Which of the following was a problem faced by the average Chinese citizen during the Song dynasty? the shrinking use of the civil service exam and thus the lack of opportunity to obtain a government position the control of the Chinese treasury by northern

53. ## Geography

From the perspective of a core country (e.g. France or Germany), explain the positive andnegative factors associated with being a member of the European Union.

54. ## english 121

I need help with my quiz in week 2

55. ## accounting

Your review of the general ledger of Home Interior Improvements and Designs Company reveals a beginning capital balance of \$25,000. You also review the general journal for the accounting period and find the closing entries shown on the next page.Prepare a

56. ## Math

If there are 9 flavors of ice cream and each student orders 2 scoops with noone getting the same order - how many students are there?

57. ## English

Can Anyone Unscramble These 13 Letters (NOSOREGGTIACN. The correct word will mean "A Whole Bunch"

58. ## child care

the best strategy for encouraging social competence with a group of school-age children is to (a(reassure the student about positive behavior (b)punish students for antisocial behavior (c)use external rewards (d) model good social skills

59. ## child care

child care staff are most effective during science activities when they

60. ## child care

one of the most important function pf a child's peer group is

61. ## Microeconomics

How can I calculate for quantity when I know the price and MC? Price = 42.00 and MC = .006

62. ## mental health

i need to know 5 communication skills working with a person that has mental ilness

63. ## mental health

i need to know the explanation of the miracle and scaling question in mental health

3 2/9 - 1/3 = p - 5 1/2 3 2/9 - 3/9 = p - 5 1/2 2 11/9 - 3/9 = p - 5 1/2 2 8/9 = p - 5 1/2 2 8/9 + 5 1/2 = p - 5 1/2 +5 1/2 2 16/18 + 5 9/18 = p 7 25/18 = p 8 7/18 = p is mom right?

65. ## pre cal

show that 6+6sin X is equivakent to --------- - 7 cos x 6cos x ------------ -7(1- sin x)

66. ## algebra 1

what is x^2_3x+2/x^2-16+3x+6/x^2-16

67. ## chemistry

how mant electron valences are in CCl4

68. ## Chemistry

How do I find the molarity of NaCl for different dilutions? You calculate the number of moles per liter of solution.

Use the straight line amortization method. Equipment amortizes 20 percent per year. Trial Balance for March 31, 2005 shows equipment worth \$90,030.

70. ## theology

what is the ordained clergy? http://en.wikipedia.org/wiki/Minister_of_religion Scroll down and read about Priests/Vicars. =)

1. ## Physics (check)

Where did you get the 19.3 from?

posted on February 21, 2019
2. ## English

It seems to be a mirror.

posted on February 24, 2016
3. ## Physics

Ok THANKYOU so much for the clarification and the example. That sure did help A lot. Massive Thanks. Let's just hope this test goes well...

posted on January 6, 2016
4. ## math

What is the quotient of 2,100 divided by 4?

posted on December 2, 2015
5. ## analogies

skill: prowess consternation:fear

posted on March 19, 2014
6. ## medical billing and coding

233.0 IS CORRECT

posted on March 14, 2014
7. ## 104 cilivi history

the Indian ocean was largely spare large- scale warfare because

posted on September 15, 2013
8. ## world history

the indian ocean was largely spared large-scale warfare because

posted on September 15, 2013
9. ## Com200 Interpersonal Communication

i need help with these answer

posted on March 23, 2013
10. ## COM200: Interpersonal Communication

true

posted on March 23, 2013
11. ## Logic

Julie and Kurt get married and had a body'' is best symbolized as

posted on March 13, 2013
12. ## psy

director : cast thank you

posted on March 9, 2013
13. ## phi 301

slippery slope fallacy

posted on March 1, 2013
14. ## history

I am extremely confused

posted on October 11, 2012
15. ## history

i thought the civil service was used wide spread

posted on October 11, 2012
16. ## history

my guess is an influx of Christian missionaries countering Confucianism. what do you think ms sue

posted on October 11, 2012
17. ## Geography

could you give me some web sites maybe? because i cannot find anyting on this

posted on September 10, 2012
18. ## english 121

i need help with english 121 with week 2 discussion 1

posted on June 30, 2012
19. ## english 121

can you help me with english 121 week3 discussion 1 and2

posted on June 30, 2012
20. ## Chemistry

to decipher properties of acid-base chemistry and how they adhere to Le Chatelier’s principle. I appreciate any input on it.

posted on November 30, 2010
21. ## Child care

posted on October 24, 2010
22. ## Child care

posted on October 24, 2010
23. ## child care

posted on July 7, 2010
24. ## child care

i see a and d

posted on July 7, 2010
25. ## child care

A ASKING DIVERGENT QUESTION (b) ANSWER QUESTION AS SOON AS THEY'RE ASKED (C) GUIDE CHILDREN THROUGH STRUCTURED ACTIVIES (D) LIMIT EXPERIMENTATION TO ENSURE SAFETY

posted on July 7, 2010
26. ## child care

b providing opportunties for compettion

posted on July 7, 2010
27. ## child care

posted on July 7, 2010
28. ## childcare

child care staff are most effective during science activities when they

posted on July 7, 2010