# Questions Asked onOctober 21, 2007

1. ## Chemistry

What is the pressure (in atmospheres) of the gas inside the container connected to an open-end, mercury-filled manometer as shown in the picture? The atmospheric pressure is 0.95atm. l----l | (G) l | l - --- l Hg l Hg *18cm - - --- Hg Hg HgHgHgHg what

asked by leo
2. ## physics

In a mall, a shopper rides up an escalator between floors. at the top of the escalator, the shopper turns right and walks 9.00m to store. the magnitude of the shopper's displacement from the bottom of the escalator is 16.0m. the vertical distance between

asked by ajo
3. ## Physics

A ball of mass 0.15kg is dropped from rest at a height of 1.25m. it rebounds from the floor to reach a height of 0.960n. what impulse is given to the ball from the floor? i don't have a clue where to start. i know impulse is constant force x change in time

asked by natali
4. ## science

A 2:35 kg block is pushed 1:57 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of 67.5 degree with the horizontal. The acceleration of gravity is 9.8 m/s2. If the coefficient of kinetic friction between the

asked by aksha
5. ## ECON-HELP!!

1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises taxes

asked by greg
6. ## Chemistry

Fill a balloon with helium gas to a volume of 2.68 L at 23 celsius and 789mmHg. What would the volume of helium if the pressure changes to 632 mmHg but the temperature is unchanged. This is how I solved it V2 = V1 X P1/P2 2.68L X 23/789 = V2 =.078 L Is

asked by lt
7. ## science

An outfielder throws a .150 kg baseball at a speed of 40.0 m/s and an initial angle of 30 degrees. What is the kinetic energy of the ball at the highest point of its motion. Work: 0^2=40^2+(.002)(-9.8m/s^2)(d) d=81.6m W=(.150kg)(9.8m/s^2)(cos30)(81.6m)

asked by Anonymous
8. ## sand bath (chem)

what are disadvantages and advantages of using a sand bath to heat something in chem?

asked by ~christina~
9. ## physics

The earth moves around the sun in a nearly circular orbit of radius 1.50*10^11m. During the three summer months (an elapsed time of 7.89*10^6s), the earth moves one-fourth of the distance around the sun. (a)what is the average speed of the earth? (b) what

asked by ajo
10. ## ECON--HELP!?!?!

1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises taxes

asked by GREG
11. ## econ--HELP!!

QUESTION Consider an economy described by the following equations: Y=C+I+G Y=500 G=1,000 T=1,000 C=250+0.75(Y-T) I=1,000-50r a.In this economy, compute private saving, public saving, and national saving. b. Find the equilibrium interest rate. c. Now

asked by greg
12. ## Microeconomics

Indicate how you think each of the following would shift demand in the indicated market: a.Incomes of buyers in the market for Adirondack vacations increase. b.Buyers in the market for pizza read a study linking hamburgers consumptions to heart disease.

asked by Tiff
13. ## Calculus

Find the average value of sqrt(cosx)on the interval [-1,1]

asked by Anonymous
14. ## CHEM

I was just wondering if someone would be able to critique my answers for the following Chem questions? they range from pretty basic to a bit more... 2)which of the following is the definition of the value of Avogadro's constant: b) the # of Carbon atoms in

asked by K
15. ## science

When rollerblading,why is a fall less harmful on a wooden floor than on a concrete floor that has less give?Explain in terms of impulse and momentum.

asked by Emma
16. ## physics

A driver of a 7.50 N car passes a sign stating "Bridge Out 30 Meters Ahead." She slams on the brakes, coming to a stop in 10.0 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and

asked by Anonymous
17. ## Science

What processes must a stone undergo if it is to be made ready for use in jewelry?

asked by Christine
18. ## physics

A 2.0 g bullet leaves the barrel of a gun at a speed of 300m/s. (a) Find its kinetic energy. (b) Find the average force exerted on the bullet by expandin gases as the bullete moves the length of the 50 cm long barrel. I did (a), but I am not sure if it is

asked by Anonymous
19. ## government

Hello there. I was wondering if someone could please tell me whether or not you could call a government totalitarian and communism? We're studying Sparta (from ancient Greece) and our teacher said it was totalitarian and later she said it was

asked by Lydia
20. ## science, biology

Hemophilia is a hereditary disease that prevents a persons blood from clotting correct;y. The gene responsible for blood clotting is located on the X chromosome of the sex chromosome pair (X and Y. This is called x-linked inheritance. The dominant gene is

asked by maggie r
21. ## COLLEGE PHYSICS

A car with mass of 1400kg is towed with a net force of 4500N. the car starts from rest, find the speed of the car traveled after it traveled 100m. W=FnetX distance=ma x distance 4500N=(1/2)1400kg V^2 2.5m/s=V is this right? if not what am i doing wrong?

asked by Anonymous
22. ## american History

compare Jefferson's presidency and Washington's, which seems more like today's presidency?why?

asked by ek
23. ## science

If you throw an egg against a wall, the egg will break. But if you throw it at the same speed into a sagging sheer, it may not break. Why?

asked by Emma
24. ## Physics

Mars' moon Phobos has a mass of 1.07x1016 kg and a mean radius of 11.1 km. Let's say our rocket blasts off from the surface of Phobos when Phobos is 9500 km from the surface of Mars. Does the rocket have to work harder to escape from the gravitational pull

asked by Raj
25. ## Diversity

Would someone please check my answers to make sure I've chose the best possible answer? 1. An example of ________ can be found in the gradual immersion of early Irish immigrants and their descendants across decades as they become a part of and contributed

asked by Rose
26. ## Accounting

I am struggling with the operating activities section of this as in what titles of accounts I should use in this section and do they decrease or increase the net income 2005 2004 Assets Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . \$ 53,875

asked by Tricia
27. ## Biology

What are 3 characteristics you would find in a protein secreting cell?

asked by Mala
28. ## U.S. GOVERNMENT

I NEED AN EXAMPLE OF HABEAS CORPUS BEING BROKEN IN HISTORY

asked by I NEED HELP!!!!!!!!!!!!!!!!!!!!
29. ## math

The Melt in Your Mouth Chocolate Factory is a rectangular building. The distance across the front of the store is 98 yards. The distance from the front to the back is one-third of this distance. If the owners paint a sign all the way around the outside of

asked by ty
30. ## AP Biology

the metabolic function of fermentation is to: a. oxidize NADH to NAD+ so that glycolysis can continue b. reduce NADH to NAD+ so that more ATP can be produced by the electron transport chain c. produce lactate during aerobic exercise d. oxidize pyruvate in

asked by Sarah
31. ## com 215

Discuss how your would approach creating a negative message for a superior ( such as a manager at work or and instructor) versus creating a message for a colleague, subordinate, or fellow student

asked by attivia
32. ## physics

The first graph you plotted is called a speed-time graph. However, information other than speed or time can be obtained from such graphs. (a) What does the area under the line of the graph represent? the distance traveled? (b) Write an equation to

asked by Anonymous
33. ## Chemistry

If coffee powder is dissolved in hot water, which is the solute, which is the solvent? HOW DO YOU KNOW? I know coffee is solute and water is solvent but how do I know? Iunno.

asked by Dick Rogers
34. ## Reading

How to get a 7 year old to comprehend reading, math, and writing? (and 1st grade book reports)

asked by Susan
35. ## Social Studies

does anyone have a good website for the Neolithic Age?? {new stone age} thanks

asked by Bailey
36. ## Chemistry

Use a diagram to help explain how LiF dissolves in water. Dont know if you guys can help me on that..

asked by Dick Rogers
37. ## Physics

How does one Coulomb of charge compare to the charge on an electron? How do you think such a large difference arose historically?

asked by Adam
38. ## calculus

Find the area of the region in the first quadrant enclosed by the coordinate axes and graph of x^3+y^3=1.

asked by Anonymous
39. ## Chemistry

There's a test tube filled with a gas, and you bring a flame to the mouth of the tube. Many things could happen... The flame might get snuffed out and there might be a popping sound... so how can you find the density of that gas in relation to the air

asked by amaliyah
40. ## Science

Can someone explain to me homeostasis? I looked it up but I couldn't figure it out.

asked by Bailey
41. ## Algebra

Checking some homework, Perform the indicated operations (x2 – 11x + 4) – (-2x2 + 2x – 6) –(x2+ 6x – 5) I took away the parenthesis and put the like terms next to each then added and subtracted the likes terms. Answer : 2x^2 - 19x + 15

asked by John
42. ## Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz

asked by Allen
43. ## science

Why do 6-ounce boxing gloves hit harder than with 16-ounce gloves?

asked by Emma
44. ## Chemistry

How many grams of hydrochloric acid are required to react completely with 4.30 grams of zinc? I got 4.80g HCl for the answer but do not know how to do part 2 which is, How many molecules of a gas will be produced? Thanks.

asked by lucy
45. ## Check out my answer for this science question plez

The chemicals make rain acidic how does it happen? Is it this it? The chemicals from the black smoke gets mixed up in the water cycle and creates acid rain.

asked by Vero
46. ## physics HELPPP please

I am stuck on a question that asks for the resultant force(magnitude + direction) question says : A rope is strung between a car and Joe, the car pulls on the rope with a force of 20,000 newton. joe pulls the rope with a force of 25,000N. what is the

asked by sam
47. ## French for Miche

For some reason I missed your question the other day about "C'est délicieux, etc." and I thought you might like an explanation. The pronoun "ce" (c') meaning "it, he, she, this, that, they, these, those" is used only with the verb être. "Ce" replaces

asked by SraJMcGin
48. ## American History

Why was Marbury v. Madison such an important case, both in the early days of the country and for its future?

asked by ek
49. ## Science

Explain why the cost of obtaining some minerals is very high.

asked by HELLPPP!!
50. ## math

I am taking test and I have done it twice these are the problems I am comming up with two different answers. 10. The gas tank in Giorgio's car holds 23 gal when full. The car gets 30 mi/gal. How far can he travel on 2 full tanks? I came up with 1380 miles

asked by Christi
51. ## Physics

I am stuck on a question that asks for the resultant force(magnitude + direction) question says : A rope is strung between a car and Joe, the car pulls on the rope with a force of 20,000 newton. joe pulls the rope with a force of 25,000N. what is the

asked by sam
52. ## social studies

What was the government like in Mesopotamia

asked by I want HELP
53. ## Biology

So the question is: What is the evolutionary significance of the 'Euglena' that forms a perspectie of utiliazing pigments to capture light energy? I researched for hours but couldn't find information on evolution of Euglena. please help ASAP! Thank you!

asked by I NEED HELP
54. ## Finance

Marie-Josee intends to buy her father company. He wishes to sell her his company for a \$850 000 amount because he would like to bequeath his inheritance to his daughter in his lifetime. Knowing the big generosity of her father, Marie-Josee wishes to make

asked by Eli
55. ## Askk

What is the worlds tallest man

asked by Joshua
56. ## math

How do you work out: 5u-v+2w=25 3u+2v-3w=16 2u-v+w=9 I have tried loads of times already and can't get the right answer.

asked by Anonymous
57. ## calculus

Find f(4) if S (0 to x) dt=xcospix.

asked by Anonymous
58. ## math

Find intervals on which the following functions are increasing and decreasing. 1. f(x) = sin 2x : x is greater than or equal to 0 and less than or equal to pi 2. y = sin x + cos x [0,2pi]

asked by aksha
59. ## Physics

A motorboat accelerates uniformly from a ve- locity of 6.4 m/s to the west to a velocity of 2.0 m/s to the west. If its acceleration was 3.3 m/s squared to the east, how far did it travel during the acceleration? Answer in units of m.

asked by Brandon
60. ## Human Biology

Which human organ system is the first to become visibly differentiated during development? Which is the second? What is the significance of this order?

asked by Jen
61. ## Chemistry - Solutions

Can the term hydration be applied to the solvent carbon tetrachloride? Explain your reasoning. If it cannot be used, what term can?

asked by Dick Rogers
62. ## chemistry

convert 0.0840 mol to liters ??? is it 1 liter over 1 mol

asked by lt
63. ## Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz

asked by Allen
64. ## grammar

Is this the correct use of a semicolon? From the harbors of Africa to the forests of Vietnam, mankind has glorified the most horrid of acts; the practice of murder.

asked by annie
65. ## science

If acid rain falls on people it burns their skin. What else does it do on people other than burn your skin?

asked by Jenny
66. ## social studies

need help unscrambling some letters for a word scramble the letters are tepmotleso, pemtounocleid,ralnarticniewv hopefully u have better luck than i did and ty

asked by Jennifer
67. ## writing analysis paper

I have an analysis paper due on a poem. I have a few ?'s. Is the plot the same as the setting of the poem? when doing an outline what do I put under the plot? The plot is number I, but what do I list as A. B. etc? Do I put the location, the time of day?

asked by confused
68. ## ethnics

Do Asian Americans and Pacific Islanders belong to a single "Asian American" culture? please help

asked by nora
69. ## Biology

So the question is: What is the evolutionary significance of the 'Euglena' that forms a perspectie of utiliazing pigments to capture light energy? I researched for hours but couldn't find information on evolution of Euglena. please help ASAP! Thank you!

asked by Megan
70. ## AP Biology

in cellular respiration, which compound has the highest free energy (will produce the most ATP when oxidized)? acetyl CoA glucose pyruvate fructose bisphosphate glyceraldehyde-3-phospate

asked by Sarah
71. ## Punctuation within sentences-hyphen

the book had some nice features, such as: a hard-bound cover, a ribbon for a bookmark, and the author's signature. 2. German grammar is simple: in that language, there are no exceptions to the rules. 3. Her daughter went on a diet that consisted of all

asked by ted
72. ## Physics

using uniform acceleration, how can I find the displacement of an object?

asked by brian
73. ## math

8x-[2x+3{-2(2x+3)-4x}-10]

asked by igi
74. ## U.S. GOVERNMENT

I NEED AN EXAMPLE OF THE STATES HAVING TOO MUCH POWER OVER THEIR CITIZENS IN HISTORY

asked by I NEED HELP!!!!!!!!!!!!!!!!!!!!
75. ## colonial log

i need to make a sort of traveling log from colonial times about 7 to 13 years before the Boston massacre and i'm having writer's block can anyone give me a general plan or idea please?

asked by Rebel
76. ## geometry

ok, so i don't understand this question. : which postulate justifies the following statement? "exactly one plane contains

asked by noel
77. ## social studies

need help unscrambling these words tepmotleso,pemtounocleid,hcnaotinw,woblinemso ty for any help with this

asked by Jennifer
78. ## biology

when a black angus has ofspring that come out brown or just spotted brown..what is the cause of it?

asked by yesenia
79. ## science

Which has the greater momentum when they move at the same speed- an automobile or a skateboard? Which requires the greatest stopping force?

asked by Emma
80. ## Calculus

What is the derivative of e^cx ?

asked by Mary
81. ## science

why is a punch more foreful with a bare fist than with a boxing glove?

asked by Emma
82. ## vocab

What's another word for "made-up"? For example 'something is made-up of...'

asked by katie
83. ## Comparative Politics

What are the implications of a united Europe for the global role of the United States?

asked by Jessica
84. ## social studies

What evidece suggests that the society in mali was stable?

asked by Anonymous
85. ## U.S. GOVERNMENT

WHAT DOES JAMES MADISON SAY ABOUT HE STATES BEING THE MOST CAPABLE OF PROTECTING THE CITIZENS RIGHTS?

asked by I NEED HELP!!!!!!!!!!!!!!!!!!!!
86. ## Science

what does H+ stand for?

asked by Judy
87. ## math

Find the average of these times using and recording two different sets of keystrokes you consider efficient? 11.5 s 10.5 s 12.2 s b) Which is more efficient?

asked by aksha
88. ## science

what is the name between high and low tides

asked by jamal
89. ## math

2m+12=3m-31 3(5j+2) = 2(3j-6)

asked by Hail
90. ## Science

describe the theories that scientists have developed to explain the events of the jurassic period.

asked by Anonymous
91. ## social science

describe the role of water in biosphere?

asked by jasmine
92. ## written communication

write a memo to my manger

asked by Marilyn Green
93. ## FRENCH

19 moins 11 font moins=minus or multiply?

asked by BEN