# Questions Asked onApril 3, 2011

1. ## freedom similes and metaphors?

I'm stuck on what to write for freedom similes and metaphors? help? Thanks!

Particles 1 and 2 of charge q1 = q2 = +3.20 x 10-19 C are on a y axis at distance d = 22.0 cm from the origin. Particle 3 of charge q3 = +9.60 x 10-19 C is moved gradually along the x axis from x = 0 to x = +5.0 m. At what value of x will the magnitude of

3. ## physics

the velocity of the water jet discharging from the orifice can be obtained from v = (2gh)^(1/2), where h = 2m is the depth of the orifice from the free water surface. determine the time for a particle of water leaving the orifice to reach point B and the

4. ## algebra

Suppose the speedometer in your car reads 55.0 mph also written as mile/hour. What is your speed in m/sec? (1 km = 0.621 mi.) unit factor methond soooo lost on this one please help!!!

A 8000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m

6. ## Stat

An instant lottery game gives you probability 0.02 of winning on any one play. Plays are independent of each other. If you play 4 times, the probability (±0.0001) that you win on none of your plays is about

7. ## Calculus

Find the area of the region enclosed by one loop of the curve. r = sin(12θ)

8. ## physics

A block of mass m = 5 kg is attached to a spring (k = 35 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 4 cm, as shown in the figure. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley,

9. ## Chemistry

Determine the density of CO2 gas at STP.

10. ## linear programming app

write the constraints as linear inequalities and identify all variables used. A canoe requires 8 hours of fabrication and a rowboat 5 hours. The fabrication department has at most 110 hours of labor available each week

11. ## Science

What will be lost if intrusion goes unchecked? Appeal to the biological diversity.

47. ## Finance

An investment generates $10,000 per year for 25 years. If you can earn 10 percent on other investments, what is the current value of this investment? If its current price is$120,000, should you buy it?

48. ## finance

An investment offers to pay you a $10,000 a year for five years. If it costs$33,520, what will be your rate of return on the investment?

49. ## physics

Water skiers often ride to one side of the center line of a boat, as shown in the figure . In this case, the ski boat is traveling at 15 {\rm m}/{\rm s} and the tension in the rope is 76 N. If the boat does 3600 J of work on the skier in 53.6 m, what is

50. ## algebra

Donna must choose a number between and that is a multiple of , , and . Write all the numbers that she could choose. If there is more than one number, separate them with commas.

51. ## Calculus

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.

52. ## Chemistry

If 80.0 grams of methane were reacted with 368 grams of oxygen, how many grams of water would be formed (find limiter first).

53. ## physics

a 12 kg sled is pulled horizontally with a force of 82 N. the coefficent of the kentic friction of the sled is 0.42. draw a FBD of the sled.

54. ## Chemistry

For the given reaction, how many moles of water will be formed starting with 45.0 moles of aluminum hydroxide: 2AL(OH)3(s) + 3 H2SO4 > Al2(SO4)3 + 6H2O

55. ## MDM4UO

A teacher provides pizza for his class if they earn an a average on any test the proability of the class getting an A average on one of his test is 8% What is the probability that the class will not earn a pizza for the firt seven tests? Answer is 0.5578

56. ## geometry

the perimeter of triangle ABC is 21 units. Give the perimeter of the triangle formed by its midsegments (connecting midpoints of all sides).

57. ## chemistry

given the reaction 4NH3 + 3O2 =2N2 + 6H20 how many moles of N2 would form if 2.77 moles of NH3 reacted completely?

58. ## Chemistry

How many milligrams of oxygen sre in a 4.00-L bottle of the gas at STP?

59. ## statistics

Three students take equivalent stress tests. Which is the highest relative score? a. A score of 144 on a test with a mean of 128 and a standard deviation of 34. b. A score of 90 on a test with a mean of 86 and a standard deviation of 18. c. A score of 18

60. ## stat

Musical styles other than rock and pop are becoming more popular. A survey of college students finds that 34% like country music, 32% like gospel music, and 12% like both. What is the conditional probability (±0.01) that a student likes gospel music,

61. ## Chemistry

What volume will 10.0g of oxygen gas occupy at a temperature of 22 degrees C an a pressure of 740. torr? Hint: Change pressure units to atmospheres.

62. ## math

if 2 cards are drawn from 52-cards deck without replacement, how many different ways is it possible to obtain a king on the first draw and a king on the second?

63. ## AP Chemistry

A mixture of aluminum and zinc metal is used in 2 experiments described below: A- A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg

64. ## physics

If we instead used 90 g of steam, how much of the 200 g of water would have turned into 100° C steam in the end?

65. ## physics

Bob..thank you very much for taking time with my question but I still don't seem to get it. the book answers are a=672 N.m b=14.1 KW to re-iterate the problem...a shaft rotating @ 800 rpm delivers a torque of 240 N.m to an Output Shaft that is rotating @

66. ## World. Issues!

If a country has a high population density does that mean the the country has to be overpopulated? IS lebanon overpopulated?

67. ## Calculus

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.

68. ## math polynomials

Simplify 4q^2-5q-1+8q^2+8q-9 A. -4q^2+3q+8 B. 12q^2+3q-10 C. -12q^2-13q-10 D. -4q^2-13q+8 I'm pretty sure its B. 12q^2+3q-10 Add (4x-2y) + (7x-5y) A. 11x+3y B. 11x-7y C. -3x+3y D. -3x-7y I think this one is B. 11x-7y, also.

69. ## Chemistry

A 50.0 mL sample of 0.23 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, is titrated with 0.14 M KOH. Ka of CH3CH2COOH = 1.4 multiplied by 10-5. What is the pH at equivalence point?

70. ## elementary

Plane A left Vancouver for Winnipeg, a distance of 2232 km, travelling at an average speed of 560km/h. At the same time, Plane B left Winnipeg for Vancouver travelling at an average spped of 430km /h. how long after take-off did the planes pass each other?

71. ## Chemistry

A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the following points in the titration. Ka of HCOOH = 1.8 multiplied by 10-4. What is the pH when 50.0 mL NaOH is added 60.0 mL NaOH is

72. ## math

David helps his dad with grocery shopping.he wants to buy brand x or brand y laundry detergent.he knows his dad wants the best value,so he compares the prices.48 ounces of brand x is 5.76.two pounds of brand y is 4.80.which brand is the better value.show

73. ## Chemistry

Consider the following electochemical cell. Pt | Fe3+ (0.0600 M), Fe2+ (6.50e-5 M) || Sn2+ (0.0620 M), Sn4+ (3.90e-4 M) | Pt (a) Calculate the voltage of the cell, Ecell, including the sign.

74. ## Word Meaning

What's another word for unconsitutional?

75. ## Chemistry

If 2.00 liters of 0.580 M CuSO4 solution is electrolyzed by passing 1.70 amps through the solution for 2.00 hr using inert electrodes. What is the [Cu2+] in the solution at the end of the electrolysis?

76. ## italian-college

Ciao! can you please check my italian essay? Im only in italian elements II so its a little rough and I don't know a lot of vocabulary. below is the prompt: Racconta le vacanze più belle della tua vita heres is the essay Mi piace la clima freddo però, mi

77. ## chemistry

what is the ph of a 2.0M solution of a strong acid?

78. ## Chemistry

A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams of compound remain in solution? How may grams of solid are formed?

79. ## math

Kate is a veterinarian.she has 9 liter bottles of a common liquid medicine for cats.she carefully measures 90 milliliters of the medicine into a smaller bottle and labels the bottle with each cats name.How many smaller bottles of 90 ml each she make from

80. ## English

I have two more questions on the same theme. Thank you. 1)Pay attention to (not at) your teachers' explanations. 2)You must put up your hand, if you want to ask a question to your teacher/your teacher a question . Are they both possible? 3) You mustn's

81. ## calcium cloride

we are having a ice cream industry we are using calcium cloride to get -35 degree now we are getting -25 degree density of liquid is 1.210 how many kilo grams of calcium cloride to mix in liquid to get the density of 1.300 the liquid is nearly 3000 liters

82. ## math

Reggie knows the length and width of a rectangle.How can he find the perimeter of the rectangle.

83. ## math

A truck traveled 22.75 mileage in 3 hours and 30 mins. What is the unit rate?

84. ## chemistry

Calculate how many mL of the 5% w/v AgNO3* solution must be added to 0.4020g of the sample to precipitate all the chloride. Assume the sample is NaCl. * this means tat there are 5 grams of silver nitrate present per 100ml of solution.

85. ## Geometry

Two sides of similar regular polygons are in the ratio of 5 : 4. The sum of their perimeters is 20. Find the perimeters of each polygon

86. ## geometry

Two cords are equally distant from the center of two congruent circles draw three conclusions?

87. ## Chemistry

a. What is the theoretical [H+] of 0.00030 M HCl? Answer: 0.00030 b. The above 0.00030 M HCl solution was prepared in the lab by dilution. The pH of the solution was measured as 4.23. Calculate the [H+] from the measured pH. Answer: pH = 4.23 = 10^ (-4.23)

88. ## Math

What is the least common multiple of 15, 34, and 55?

89. ## statistics

A sample of 36 females is taken. What is the probability that the mean height of these women is shorter than 64 inches if we know the height for all American females is N(63,3^2)? What is the probability that a random woman is shorter than 64 inches?

90. ## Polynomial- Doublecheck2

I asked this earlier, but I didn't get an answer. I'm glad though, because I found a couple of typos. I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they

I'm watching shark tank and they keep going on about royalty. They'll say something along the lines of: I'll give you 500k for 30% equity and 10% royalty. I don't really understand all this business stuff but what I think is going on it that they're giving

92. ## math2

What would be the greatest commmon factor to 15, 34, and 55?

93. ## Literature

What literature do you consider to be part of the United States' current literary canon, and why? How do those selections reflect the cultural tradition of the United States? What do you consider to be part of your personal literary canon?

94. ## english

In paragrpahs 2-4 the letter Public Statement by Eight Clergymen why does King use narrative in paragraph 2 and why does King use refutation. In paragraph 3 why does King use allusion.

95. ## English

We have to give presentations on syntax. I remember awhile back reading this modernist poem which repeated the same sentence over 20 times but changed the order of words each time resulting in a different meaning. I think it really demonstrates the

96. ## math

2(5656)-93872

97. ## biology

If you toss a coin and it comes up tails on eight consecutive tosses, what is the likelihood it will come up heads on the ninth toss?

98. ## Chemistry

Given the following information: Ag^+(aq) + Cl^-(aq)AgCl(s) Keq=1.8x10^-1 Ag^+(aq) + 2NH3(aq)Ag(NH3)2^+(aq) Keq=8.2x10^3 Explain why the AgCl(s) dissolved when NH3 was added to the test tube.

99. ## science

only some light passes through

100. ## Physics

"A 1220-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Find a) the magnitude of the tension in the cable and b) the magnitude of the horizontal and

189. ## math

At kenneht's school, tickets for a concert were sold at the rate of 40 per half-hour. how many tickets will be sold in 7 hours?

190. ## com155

Having a credit card could get someone into much trouble if it is not used responsibly. I personally have nightmares when it concerns credit cards. I do not like paying interest on something when it is not necessary. I learned how to use credit cards the

191. ## Health

The patient was started on a Lasix drip and transferred to the cardiac floor. The concentration of the Lasix drip is 64mg/250mL D5NS. The prescription is for the drip to deliver 4mg of Lasix per hour. How many hours will the bag last?

192. ## Chemistry

Vinegar is a dilute solution of acetic acid. In the titration of 5.00 mL of vinegar, 39.75 mL of 0.137 M sodium hydroxide solution was required to neutralize the vinegar to a phenolphthalein end point. Calculate each of the following of the vinegar. (a)

193. ## AP Chemistry

A mixture of aluminum and zinc metal is used in 2 experiments described below: A- A 1.7 gram sample of the mixture is reacted with excess hydrochloric acid and the resulting hydrogen gas is collected over water. The reaction takes place at 750 mm Hg

194. ## math

a square with perimeter 5 less then the area. perimeter and area equal 45

195. ## Physics

An object with mass 0.250 kg is acted on by an elastic restoring force with force constant 10.8 N/m. The object is set into oscillation with an initial potential energy of 0.150 J and an initial kinetic energy of 6.00×10−2 J. What is the amplitude of

196. ## Algebra

Can someone please help me with this? I'm not looking for the answer, just a detailed explanation on how to solve this. Thank you in advance. Solve: 16(t - 1) + 10 > 8(t +2) + 4(t - 1) + 4t

197. ## algebra

(9,2),(10-10) find the slope if it exists

asked by bianca, pleeease help i'm lost
198. ## arithmetic

In a mobile phone network, how many times as strong would a signal be expected to be at 200 m from a base station, compared with at 600 m? i calculated 3 or 81. which is it right?

199. ## college

Find the x and y intercepts and graph 9x + 8y = 72. Graph the points.

200. ## HCS341

can someone explainwhy training and education are vital in health care and the importance of measuring competencies an is there a Description of the process for tracking and evaluating training effectiveness ? thanks

201. ## math

A rectangle has a length 10 m less than twice its width. When 2 m are added to the width, the resulting figure is a sqaure with an area of 196 m squared. Find the demensions of the original rectangle

202. ## chemistry

Suggest a technique the student could try to reduce the concentration of the 12 M solution.

203. ## math

a boat travels 4 km upstream and 4 km back. the time for the round trip is 9 hrs. the speed of the stream is 2 km/hr. What is the speed of the boaty in still water?

204. ## Physics

a shaft rotation @ 800 rpm delivers a torque of 240 N.m to an output shaft that is rotating @ 200 rpm. a. if the efficiency of the machine is 70%, compute the output torque b, what is the output power e=Po/Pi .7=x/240 N.m = 168 N.m this is not the answer

219. ## Math

Find the length of VR, the direct distance across the river, to the nearest tenth.

220. ## Calculus II

Find the area of the region enclosed by the inner loop of the curve. r = 5 + 10sin(θ) Thanks for the help!

221. ## Math Help

a to the 9 power b to the 3 power / a to the 7 power b to the 8 power.( a^8b^8/ a^7b^8)

222. ## Math

What is the equation for the sequence 1, 2, 1/4, 8, 1/16, 32,......

223. ## Principle of economic

The quantities of orange supplied by a producer in a week is shown below 12,6,7,3,15,10,18,9 calculate the variance deviation for groupdata and ungroupdata.

224. ## Science

How many Newtons of force are neede to lift 20 50lb bags of sand??

225. ## calculus

A company wants to bid on an order of 20,000 square based boxes which hold 5 cubic feet. The cardboard cost is $.15 per square foot. The boxes must be reinforced with an extra layer of cheaper cardboard on the bottom ($.12 per square foot). The box is held

226. ## Physics

Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.

227. ## Titrations (chem)

In the titration of a 0.101 M sodium hydroxide solution, 19.02 mL of 0.130 M sulfuric acid solution was required to neutralize the sodium hydroxide in reactions that replace both hydrogen ions of the sulfuric acid. Calculate the number of milliliters of

228. ## Math

How would I solve this...I don't get it. Two solutions of an equation are (6,5) and (8,5). What could the equation be?

229. ## FRENCH - repost

Pourriez-vous me dire, s'il vous plait, quelle de ces phrases est correct? Je voudrais dire: "It has been two years since we were there". 1) Il y a deux ans que nous y étions. 2) Il y a deux ans que nous étions là. 3) Il a été deux ans depuis que nous

230. ## Chemistry

A sample containing 4.80g of O2 gas has a volume of 15.0L. Pressure and temperature remain constant. What is the new volume if 0.500 mole of O2 gas is added? Am I converting the 4.80 O2 into moles first? How do I do that?

231. ## English

I left out the following sentences. Thank you for your help. It's urgent 1) I must always bring all my books and exercise books to school (class?) I must do (my) homework every day. 2) How can I get to the school (or to school?) from here? Do you know how

232. ## Chemistry

Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?

233. ## science

what would most likely happen to organisms in an ecosystem if the temperature suddenly increased alot for an extended period of time?

Use Demoivre's Theorem to find the fourth roots of -16. Leave the four roots in trigonometric form. How the heck do i do this?

235. ## math

find the vertex, the line of symmetry, the max or min value of f(x)=2x^2-8x+16

236. ## Leah

During a week in December on anchorage, Alaska the daily high temperatures were 20,18,-10,15,-15,25, and 11. Write an expression to find the average daily high temperature during that week.

237. ## English

this is what i have done so far, but i need help with the rest. The type of graphs that could be used for the topic same-sex marriage, such as graphing out how many same-sex couples exist in the state of region. Than comparing the number of licensed

238. ## Math

A recipe that makes 18 cookie calls for 3/4 cup of sugar. Howbmuch sugar is needes to make 24 cookies using this recipe?

239. ## chemistry

if you start with ten grams of lithium hydroxidr, how many grams of lithium bromide will be produced

240. ## spanish2

how do you make a spanish comic strip with only two people talking to each other? please give me some examples

241. ## Algebra I

How do you find compositions of functions? Example: (-x Squared)(x-2/5(8))

242. ## Chemistry

This is for a lab about determining the equilibrium constant. Given: 5.00mL of .203M Fe(NO3)3 mixed with 100mL of .00205M KSCN in a .5M HNO3 solvent for both solutions. Resulting absorbance for solution is .315. How can i find the total Fe, [Fe*] and SCN,

243. ## algebra

solve by the subtraction method 5x+6y=0 x=34-8y

asked by bianca last one I promise
244. ## French - Sentences

Could you check to see if these sentences make any sense. I tried to simlify what I wanted to say. Oui, j'aime l'art parce il fais moi sourire. Il fais moi avoir envie de magique, et il donne moi plaisir. In english: Yes, I love art because it makes me