# Questions Asked onFebruary 5, 2014

1. ## physics

A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 30° above the horizontal. If the mass of the box and the books is 40.0 kg, what is the acceleration of the box? Square root of three meters per second

2. ## Algebra 1

Plz help me with the following problems. Simplify. 5^-1(3^-2) Simplify. mn^-4/p^0q^-2 Write a scientific notation. 0.0042 Write in standard notation. 6.12*10^3 Simplify. Write in scientific notation. 0.5(8 * 10^5) Simplify. Write in scientific notation. (9

3. ## english

9. What personality trait does Odysseus reveal when he devises a plan to listen to the Sirens' song and yet escape destruction? (1 point) irritability loyalty curiosity generosity10. Read the following passage from the Odyssey: Tell me, where was it, now,

4. ## Calculus 2

Find Mx, My, and (x, y) for the laminas of uniform density ρ bounded by the graphs of the equations. y=sqrt(x)+4 y=(1/2)x+4 The I keep getting 20/3 for Mx but webassign acts like it is wrong.

5. ## physics (clear answer)

An airplane traveling north at 400 m/s is accelerated due east at a rate of 50 m/s2 for 6 s. If the effects of air resistance and gravity are ignored, what is the final speed of the plane?

6. ## spanish

celoso/a compartir deprimido/a discutir inmaduro/a mal odiar separarse tener celos María y Pedro se conocieron la semana pasada. Se llevan muy bien. María es muy simpática y Pedro es muy gracioso. Pedro coquetea mucho con María. Creo que se quieren

7. ## chemistry

a .50 sample if vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 kJ are given off. what id the caloric value, in kcal/g

8. ## math

In a 365 day calendar year, there are ____ more odd-numbered days than even-numbered days. Please Explain

9. ## quanitative methods

The time required to complete a project is known to be normally distributed with a mean of 44 weeks and a standard deviation of 8 weeks. (a) What is the probability that the project is finished in 40 weeks or fewer?

10. ## SS

Which of these groups contribute to total GDP? A. human records, raw materials, capital goods B. government spending, capital goods, net imports C. net imports, net exports, household spending D. net exports, household spending, government spending D?

11. ## Physics

What is the weight of a 22.0 kg mass at the equator on the surface of Saturn? The mass of Saturn is 5.69 x 10^26 kg and the radius of Saturn is 6.03 x 10^7 m I tried this one using the equation : Fg= Gm1m2/r^2 Fg= (6.67 x 10^-11)(22.0kg)(5.69 x 10^26kg) /

12. ## Chemistry

Calculate the number of grams of xenon in 3.566 g of the compound xenon tetrafluoride.

13. ## physics

you are driving up a long, inclined road . after 1.20 mi you notice that signs along the roadside indicate that your elevation has increased by 550 ft.

14. ## Math

.50x+.20y=3.60 x+y=9

15. ## Math

Five pounds of birdseed is used to fill 4 identical bird feeders. A. What fraction of the birdseed will be needed to fill each feeder B. How many pounds of borked seed are used to fill each feeder? C. How many ounces of birdseed are used to fill three bird

16. ## Math

How many 2/3 cup sugar bowls can be filled from 8 cups of sugar?

17. ## MATH

(4 pts) The score on an exam from a certain MAT 112 class, X, is normally distributed with \mu = 77.6 and \sigma = 10.9. NOTE: Assume for the sake of this problem that the score is a continuous variable. A score can thus take on any value on the continuum.

18. ## Plz, plz help! SS

What resources led to the appearance of the Industrial Revolution in New England? During the early 1800s, the United States tried to make peace with other countries in order to grow and develop. Give an example of one of these peace efforts and briefly

19. ## MATH

(5 pts) The length, X, of a fish from a particular mountain lake in Idaho is normally distributed with \mu = 9.7 inches and \sigma = 1.7 inches. (a) Is X a discrete or continuous random variable? (Type: DISCRETE or CONTINUOUS) ANSWER: (b) Write the event

20. ## physics

Two boxes are connected by a cord running over a pulley as shown in the picture below. Box I of mass 8.0 kg is on the top of the table; the coefficient of kinetic friction between box I and the table is 0.10. Box II has a mass of 15.0 kg. What is the

21. ## Math

Could someone help me with these questions? Thanks! a) A cargo plane left Vancouver, British Columbia (time zone −8) at 3:00 p.m. on a Monday. The plane ﬂew for 11 h to Paris, France (time zone +1). At what local time and on what day did the plane land

22. ## science(CHECK ANSWERS)

which of the following is the best example of transforming electromagnetic energy into thermal energy? A.when trees absorb sunlight for photosynthesis. B.when the interior of a car absorbs sunlight and warms up. C.when a solar panel absorbs sunlight to

23. ## physics

As a rock of mass 3.0 kg drops from the edge of a 60. meter high cliff, it experiences air resistance, whose average strength during the fall is 22. N. At what speed will the rock hit the ground? Answer 1.5 m/s 13 m/s 18 m/s 26 m/s 34 m/s

24. ## Pre calc

8sinxcosx=1 I don't know where to go after 2sinxcosx=1/4

25. ## chemistry

I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl

26. ## Math

Anderson has a phone plan that charges a monthly rate of $50 for the first 1,000 minutes plus$0.25 for each additional minute. Which of the following functions models Anderson's plan for all m > 1,000, with m as the number of minutes per month and f(m) as

27. ## Physics

If the period of a transducer is 0.83msec, what is the HZ?

28. ## Chemistry

Aspirin, C9H8O4 , is produced through the following reaction of salicylic acid, C7H6O3, and acetic anhydride, C4H6O3: C7H6O3(s) + C4H6O3(l) ---> C9H8O4(s) + HC2H3O2(l) A. What mass of aspirin (kg) could be produced from 75.0 mol of salicylic acid? B. What

29. ## Chemistry

Magnesium metal reacts with phosphoric acid to produce hydrogen gas. If 50 g of phosphoric acid is used, how much magnesium metal is needed? How much hydrogen gas is produced?

30. ## Accounting

Please explain I'm so lost Chandler Ltd. estimates sales for the second quarter of 2014 will be as follows. Month Units April 2,550 May 2,475 June 2,390 The target ending inventory of finished products is as follows. March 31 2,000 April 30 2,230 May 31

31. ## trig

A kite is flying at an angle of elevation of about 40 degrees. All 80 meters of string have been let out. Ignoring the sag in the string, find the height of the kite nearest ten meters.

32. ## Physics

A football is kicked at ground level with a speed of 17.9m/s at an angle of 39.0∘ to the horizontal. How much later does it hit the ground?

33. ## Science

5. The process of desertification can occur when (1 point) A. plants usually found in the desert replace trees that have been cut down B. farmers use contour farming techniques C.an area of forest is clear-cut*** D.an area of forest is selectively cut

34. ## Math

Can the sum of two mixed numbers be equal to 2? Explain why or why not.

35. ## Math

I have a graph which is graphed by the equation f(x) = |x| - 4 and I'm asked to find the solution to the equation f(x) = 0. What would the solution be?

36. ## chemistry

I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl

37. ## Math

The 80 students in the 5th grade at north side elementary school voted for their favorite animal after a trip to the zoo.the elephant received 3/5 of the votes.how many votes did the elephant receive.

38. ## Chemistry

Answer the following questions about the characteristics of the elements in Group 2 (the alkaline earths). How do they react with iodine? How do they react with water? How do they react with oxygen? Which reacts the most vigorously? Which element in the

39. ## Chemistry

Answer the following questions about the characteristics of the elements in Group 2 (the alkaline earths). How do they react with iodine? How do they react with water? How do they react with oxygen? Which reacts the most vigorously? Which element in the

40. ## Math - Alg

How much water must be added to an 80% acid solution to make a mixture of 50mL which is 70% acid?

asked by McKenna Louise
41. ## Agarwal Siksha samithi

A Vertical pole of 5.6m height carts a shadow 3.2m long at same time find the height of pole which carts a shadow 5m long.

asked by Sonal Bansal
42. ## physics

The pulse duration of the transducer is 0.6 microseconds. The frequency of the transducer is 8MHz. How many cycles are contained in that pulse?

43. ## science

Which statement about supercell storms is false? A. A supercell storm can develop into a self-sustaining, extremely powerful storm. B. A supercell storm is characterized by rotating updrafts. C. A supercell storm occurs only during the winter months. D. A

44. ## U.S History - need Help to check my answer

Document A - “Sir, our vessels are now captured when destined to the ports of France and Britain without even the pretext of having on board contraband of war, enemies' property, or having in any other respect violated the laws of nations.. . . . Over

45. ## Basic Algebra

What is the slope of any line perpendicular to the line 4x-2y=10 ?

46. ## Physics

) What is the minimum uncertainty in the velocity of an electron that is known to be somewhere between 0.050 nm and 0.10 nm from a proton?

47. ## Chemistry

Calculate the number of grams of xenon in 3.566 g of the compound xenon tetrafluoride.

48. ## Math

Show all the ways of breaking apart 8/8 write the equations next to each array and draw a line to separate it.

49. ## physic

ten dipoles, each consisting of two charges +- 19 uC, are located within a spherical surface, the radius of which is 2 mm. What is the flux density through the sphere i got 4.1*10^6 N-m^2/C ???????????

50. ## English III

In the following sentence identify the appositive or appositive phrase and the noun or pronoun renamed by the appositive. Mother gave a birthday gift to Mary, my youngest sister.

51. ## algebra

what value makes the polynomial factor as a perfect square x+12+?

52. ## Math

I don't understand this question, could someone solve/walk me through this? One afternoon in Fort Simpson, Northwest Territories, the air temperature was −10ºC and the wind speed was 25 km/h. The air temperature dropped by 5ºC in the evening, but the

53. ## physics

A basketball is launched with an initial speed of 10.0 m/s and follows the trajectory shown. The height of the basket y= 1.50m.From what distance x the ball is shot? Note: The drawing is not to scale. Angle is 45degrees

54. ## criminal

Criminal offenses that employ advanced or emerging technology are called _____. A. technocrimes B. cybercrimes C. computercrimes D. electrocrimes

55. ## AP chem

Consider the titration of 50.00 ml .250 M HBr with .100 M Ba(OH)2. What is the pH after the following additions of Ba(OH)2 to the 50 ml of hydrobromic acid? 0 ml. 15 ml. 25 ml. 50ml. 51ml.

56. ## physic

During fair weather, an electric field of about 100 N/C points vertically downward into the earth's atmosphere. Assuming that this field arises from charge distributed in a spherically symmetric manner over the surface of the earth, determine the net

57. ## Writing Evaluation (Writeacher!)

What do you think? Have I written according to the directions? What improvements do you suggest? Write 2 paragraphs describing Annie Johnson's sitation ("New Directions" by Maya Angelou.) A: Annie Johnson’s situation shows the familiar struggle that many

64. ## SS

5. How did western settlement help improve the nation’s economy? The number of people searching for gold increased, thus increasing the amount of gold in the United States. The number of people looking for nonfactory jobs increased, thus increasing the

65. ## Math

It takes Kelly 3/4 hour to bake a small loaf of bread.how many loaves of bread can she bake in 3 3/4 hours if she bakes one loaf at a time.

66. ## algebra

square route of 2 plus the square route of 1 plus k = 2.24

67. ## physics

5. A charge of -5.00 nC and a charge of -2.00 nC are separated by a distance of 40.0 cm. Find the equilibrium position (where the net force equals zero) for a third charge of 15.0 nC.

68. ## Chemistry

complete the equation. Na + H2-->

69. ## SS-1 question

Which of the following was Daniel Webster speaking of when he declared, "Liberty and Union, now and forever, on and inseparable!"? regional differences international differences improved transportation improved industry My answer is A

70. ## biostatistics

Seventeen people has been exposed to a particular disease. Each one independently has a 40% chance of contracting the disease. A hospital has the capacity to handle 10 cases of the disease. What is the probability that the hospital's capacity will be

71. ## math

square root of 2+(square root of 1+k)equals the square root of 5. Solve for k

72. ## Math

Subtract fractions: The third- graders used the recipes below to make Native American desserts for Multicultural Day. Use the recipes to solve each problem. Cherokee Blackberry cobbler 1/4 quart black berries 1 cup corn meal 1/3 cup milk 3/6 cup honey 2/16

73. ## social science

Think about the war between the United States and Iraq. To what degree, if any, did political culture play a role in the decision to go to war, the public’s support of the war, and how public officials discussed the war? Looking at this example, reflect

74. ## Calculus

I'd really like some help in solving an integral. ʃ 1/ √x (1-3√x) In numerator: 1 In denominator: the square root of x times 1 minus 3 times the square root of x The answer given is -2/3 ln l1-3√xl + C but I don't know how to get there.

79. ## chemistry

I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl

80. ## chemistry

I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl

81. ## algebra

If Will gives Molly $9 dollars he will have the same amount of money as her. If Molly give Will$9, the ratio of money she has to the money will has will be 1:2. How much money does will have in the beginning?

82. ## chemistry

I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl

83. ## Math

Which is a good comparison of the estimated sum and the actual sum of 7 7/8 + 2 11/12? A. Estimated < actual B. Actual> estimated C. Actual = estimated D. Estimated < actual I chose D

84. ## SS

One way that political leaders can avoid paying the full costs of a policy is by raising taxes. borrowing money. cutting other spending. retiring from office. A The term "full costs" refers to the cost (in terms of money) of a policy, but there might not

85. ## sciene(HELP)

which of the following is the best example of transforming electromagnetic energy into thermal energy? A.when trees absorb sunlight for photosynthesis. B.when the interior of a car absorbs sunlight and warms up. C.when a solar panel absorbs sunlight to

86. ## gwagwa

a bullet of 0.05kg has a speed of 400m/s what is it kinetic

87. ## SS

What is one certain long-term cost of adding to the national debt? Americans in the future must have fewer public services. Americans in the future will not vote in elections. Americans in the future will not enjoy the benefits of the program. Americans in

They fought prejudice against women. Does this sentence mean that "they" side with the women and help fight against prejudice?

89. ## Precalculus

Suppose that the mean score of 250,000 students on the mathematics part of the SAT is 468 and the standard deviation is 104. Suppose that you make 650 on the SAT mathematics part. a. How many standard deviations is your score above the mean? How do you do

90. ## Precalculus

1. Gas Mileage Problem The EPA efficiency rating Ina particular model of new car says that the car is expected to get 22.7 miles per gallon (mpg) of gasoline. Assume that the standard deviation is 1.4 mpg and that the actual mileage are normally

91. ## chemistry

The normal boiling point of Rh is 3727°C. What is its vapor pressure in mm Hg at 2914°C, if its heat of vaporization is 557.0 kJ/mol?

162. ## Science (please check my answers)

7. During the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. The breaking of the covalent bonds during digestion releases energy. The type of energy released is (1 point)

163. ## social studies

I need help with this question haha blonde With the existing colonies or dependencies of any European power we have not interfered and shall not interfere. But with the Governments who have declared their independence and maintained it, and whose

164. ## ICD-9-CM and CPT Codes

32year old female was burned by hot grease in her kitchen 1 week ago She is in the hospital based wound clinic for large dressing changes on both extremities following second-degree burns to both arms. This is accomplished without requiring anesthesia.

165. ## physics

A 15.0-kg box is released from rest on a rough inclined plane tilted at an angle of 45° to the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.200. What is the force of kinetic friction on the box? Answer

166. ## The Odyssey Part 2

can i get a link or a summary of: The Odyssey Part 2?

167. ## History

How did the belief in Manifest Destiny contribute to the westward expansion of the United States? a.Americans believed expansion would offer new economic opportunities. b.Americans believed they could learn important values from other cultures. c.The

168. ## math

re-arrenge y=mx+c

169. ## science(CHECK ANSWERS)

which of the following is the best example of transforming electromagnetic energy into thermal energy? A.when trees absorb sunlight for photosynthesis. B.when the interior of a car absorbs sunlight and warms up.(I PICK THIS) C.when a solar panel absorbs

170. ## Physics

A 3.00 gram lead bullet travels at a speed of 240 m/s and hits a wooden post. If half the heat energy generated remain with the bullet, what is the increase in temperature of the embedded bullet? (clead = 128 J/kg C)

171. ## Art

what 2 colors make purple?

172. ## math help

Evaluate 1/8n + 2 1/4 n=3/4 How do u solve

173. ## English

1. The price itself is expensive. 2. The price itself is high. 3. The price itself is cheap/inexpensive. 4. The price itself is low. (Are they all grammatical? Which one is incorrect?)

174. ## Math

Mr Connors drives his car 11 miles each day to and from work. Is this distance mr Connors drives commuting to work proportional to the number of days he works ? How do you know?

175. ## Social Studies

I have a question was Osceola a Seminole chief? My book says:"He had no claim on hereditary leadership among the Seminole, but his determination and charisma soon attracted a large following." When I google it it says he wasn't a chief on some sites and on

176. ## Physics

What is the temperature increase of water per kilogram at the bottom of a 145 m waterfall if all of the initial potential energy is transferred as heat to the water?

177. ## Anatomy and Physiology

A young child has a neurological disorder that causes spastic paralysis. What disease does this child most likely have? A. Huntington's disease B. Myasthenia gravis C. Subdural hematoma D. Cerebral palsy

178. ## physics

in a modern nonlinear dynamic experiment, small beads are vibrated on a plate; when the beads start to move, interesting patterns form. If the plate vibrates at 250 hz, for what amplitude of motion will the bears start to lift off?

179. ## Physics

You can use any coordinate system you like in order to solve a projectile motion problem. To demonstrate the truth of this statement, consider a ball thrown off the top of a building with a velocity v at an angle θ with respect to the horizontal. Let the

180. ## physics

A 101.6-N bird feeder is supported by three cables as shown in the figure below. Find the tension in each cable

181. ## math vectors

Find the angle between two vectors. In radians and in degrees. u=, v= I got radians = 1.676 degrees = 96

182. ## chemistry

1.64 L of a 4.95 M solution is diluted to form a 2.58 M solution. (Rounded to 3 sig figs) there are __________ L of the 2.58 M solution formed.

183. ## chemistry

What is the percent recovery if you begin with 0.482 grams of copper and recover 0.325 g? Include one decimal place in the answer and do not include the % sign. Answer

184. ## Math

If tickets cost 12 dollars for students and 18 for adults and 162 dollars is collected from 12 people how many adults and students are in the group

asked by Joel Sue
185. ## Physics

You can use any coordinate system you like in order to solve a projectile motion problem. To demonstrate the truth of this statement, consider a ball thrown off the top of a building with a velocity v at an angle θ with respect to the horizontal. Let the

186. ## Physics

A 500.0 kg object is attached by a rope through a pulley to a paddle-wheel shaft that is placed in a well-insulated tank holding 25.0 kg of water. The object is allowed to fall, causing the paddle wheel to rotate, churning the water. If the object falls a

187. ## Algebra 1

Sam collects insects. However, he only collects ants and beetles. One night while collecting insects for his collection, Sam had an unproductive hunt. The number of ants plus twice the number of beetles was only eight. The difference between the number of

asked by Alexzander Garcia

230. ## Ivytech

There are 7 multiple choice questions on an exam, each with 4 possible answers. If you are guessing, so that you are likely to choose 1 sequence of answers as another, what is the probability of getting all 7 answers correct?

231. ## science

a stone is dropped down a well.it hits th surface of the water after 2seconds.find the depth of water from point where the stone was dropped

232. ## Physics

Two trains, each having a speed of s, are headed at each other on the same straight track. A bird that can fly at speed 2s flies off the front of one train when they are d apart and heads directly for the other train. On reaching the other train it flies

233. ## Math

A truck had 20 L of gas in it when it was 4/5 full. How much can it hold when it is full?

234. ## L.A.

A grouse, a quail, or a pheasant is/are a close relative of the turkey. Is?

235. ## Math help

a \$6000 principal earns 8% interest compounded semi annually after 35 years what is the balance

236. ## us history

Imagine that you are living in New Jersey during the revolutionary war.Write a postcard to a friend in Boston describing how the war has affected your life.

237. ## Language Arts ~CHECK MY WORK PLEASE~

1. What can you predict about the poem by previewing the title, subtitle, and first line of the poem "In response to executive order 9066"? a.) It will be a letter to the Japanese-American citizens in which they are told they must leave their homes. b) It

238. ## math

What is the approximate circumference of a pizza pan with a diameter of 13.2 inches? (Use π = 3.14)

239. ## criminal

Prevention of catastrophic terrorism is most dependent on a unity of efforts between the federal government and A. the American Red Cross. B. local and state level agencies. C. the U.S. Armed Forces. D. private security services. I think the answer is C

240. ## english (check my work)

9. What personality trait does Odysseus reveal when he devises a plan to listen to the Sirens' song and yet escape destruction? (1 point) irritability loyalty curiosity generosity10. Read the following passage from the Odyssey: Tell me, where was it, now,

241. ## Algebra

On Jan 1, 2010, Chessville has a population of 50,000 people. Chessville then enters a period of population growth. Its population increases 7% each year. On the same day, Checkersville has a population of 70,000 people. Checkersville starts to experience

242. ## Physics

If the period of the moon were 31 days while its orbit radius 3.8x10^8m, what would the mass of the Earth be?

243. ## Chemistry

complete the equation. Na + H2-->

244. ## Science

A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of the metal.