# Questions Asked onFebruary 8, 2013

1. ## probability

In a recent survey, 35 percent indicated chocolate was their favorite flavor of ice cream. Suppose we select a sample of ten people and ask them to name their favorite flavor of ice cream. (b) What is the probability exactly four of those in the sample

2. ## science

List the five conditions that can disturb genetic equilibrium in a population I think Infinite population size, no mutation, no selection against a certain homozygous gene, random mating, no immigration/emigration Mutations. can someone let me know if this

3. ## maths

find the missing value to the nearest hundredth Tan ___ = 73 I just don't get these!

4. ## chemistry

If 50.0 mL of 0.150 M magnesium bromide is combined with 200 mL of 0.110 M sodium bromide what is the molarity of the bromide ion in the resulting solution? (assume volumes are additive)

5. ## Physics

A uniform rod of mass 100g has a length of 1m.it is supported horizantally on two knife edges placed 10cm from it end. What will be the reaction at these supports when a 50g mass is suspended 30cm from one of the knife edges?

6. ## math

calvin buys 3/5 pound of ground beef. he divides the beef into 6 equal portions. a)find the weight of 1 portion of beef. b)fin the weight of 4 portions of beef.

A basketball player throws the ball at a 38° angle above the horizontal to a hoop which is located a horizontal distance L = 5.6 m from the point of release and at a height h = 0.4 m above it. What is the required speed if the basketball is to reach the

8. ## Physics

The force required to stretch a Hooke’s-law spring varies from 0 N to 63.5 N as we stretch the spring by moving one end 5.31 cm from its unstressed position. Find the force constant of the spring. Answer in units of N/m

9. ## biology

a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more

10. ## Math

A box contains a one-dollar bill, a five-dollar bill, a ten-dollar bill, and a twenty-dollar bill. Two bills are chosen in succession without replacement. Use a tree diagram to list the sample space for this experiment and then answer the following

13. ## Physics

You shine your laser pointer through the flat glass side of a rectangular aquarium at an angle of incidence of 45 degrees. The index of refraction of this type of glass is 1.55. A. At what angle from the normal does the beam from the laser pointer enter

14. ## probability

Listed below is the population by state for the 15 states with the largest population. Also included is whether that state's border touches the Gulf of Mexico, the Atlantic Ocean, or the Pacific Ocean (coastline). Rank State Population Coastline 1

15. ## physics

A toboggan approaches a snowy hill moving at 15.0 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.460 and 0.350, respectively, and the hill slopes upward at 41.0 above the horizontal. Find the acceleration of

16. ## physics

Suppose a piano tuner hears 2 beats per second when listening to the combined sound from her tuning fork and the piano note being tuned. After slightly tightening the string, she hears 1 beat per second. Should she loosen or continue to further tighten the

17. ## physics

While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.25. The pushing force is directed downward at an angle θ below the horizontal. When θ is

18. ## Chemistry

At a certain temperature, the solubility of gas in water at 2.04 is 48.0 . Calculate the solubility of gas in water, at the same temperature, if the partial pressure of gas over the solution is increased from 2.04 to 6.00 .

19. ## math

in a mathematics class, half of the students scored 91 on an achievement test. with the exception of a few students who scored 47, the remaining students scored 71. which of the following statements is true about the distribution of the scores? a: the mean

20. ## probability

An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of 6.4 emails per hour. Assume the arrival of these emails is approximated by the Poisson distribution. (a) What is the probability

21. ## English

-------------------- This poem is by Diana Chang and i reallly really have no idea what she is talking about. Im suppose to TPCASTT it paraphase, connotation, The attitude of the poem, and the shift , the theme, and the meaning of the title. please

22. ## accounting

Which of the following statements is incorrect? a. The normal balance of accounts receivable is a debit. b. The normal balance of an expense account is a credit. c. The normal balance of the owner's capital account is a credit. d. The normal balance of

23. ## probability

During the second round of the 1989 U.S. Open golf tournament, four golfers scored a hole in one on the sixth hole. The odds of a professional golfer making a hole in one are estimated to be 3,708 to 1, so the probability is 1/3,709. There were 155 golfers

24. ## Physics

A uniform rod of mass 100g has a length of 1m.it is supported horizantally on two knife edges placed 10cm from it end. What will be the reaction at these supports when a 50g mass is suspended 30cm from one of the knife edges?

25. ## math

How many prime numbers p are there such that 29^p+1 is a multiple of p?

26. ## Physics

The only two forces acting on a body have magnitudes F1 and F2 and directions that differ by an angle θ. If the resulting acceleration has a magnitude a, what is the mass of the body?

27. ## Physics

The blood speed in a normal segment of a horizontal artery is 0.166 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to 1/5 of its normal cross-sectional area. What is the difference in blood pressure between the normal

28. ## Physics

A person who weighs 506 N is riding a 94-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 6.70 x 105 Pa, what is the area of contact between each tire and the

29. ## science

Newton’s Second Law of Motion is expressed as F = ma. If you are pushing a lawn mower in your backyard and suddenly double the pushing force, what will happen to the lawn mower's rate of acceleration? The mass of the lawn mower is constant. A. The

30. ## physics

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant

31. ## probability

In a binomial distribution,n=8 and π=.35. Find the probabilities of the following events. (Round your answers to 4 decimal places.) (a)x=1 (b)x≤4 (c)x≥5

32. ## MAth

A model length of 12 cm. represents an actual length of 102 feet. What is the scale model?

33. ## Math

Mr. Brown needs to buy some fencing for his garden (too many rabbits have been getting in and eating the vegetables). If his garden is twenty-three meters by thirty-four meters and is in the shape of a rectangle, what length of fence does he need to build?

34. ## Physics

An ore car of mass 37000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 9.9 m lower vertically, is a horizontally situated spring with constant 3.9 × 10 5 N/m. The acceleration of gravity is 9.8 m/s 2 . Ignore

35. ## Physics

A meter stick lies on the bottom of a 100 cm long tank with its zero mark against the left edge. You look into the tank at an angle of θ = 30°, with your line of sight just grazing the upper left edge of the tank, and height of the tank is 50cm. (a) What

36. ## Chemistry

How much 2 M KOH must be added to 0.5 L of 0.2 M glycine at pH 8 to bring its pH exactly to 10?

37. ## Elmentary Math for Teachers II

A spinner containing 8 numbers is spun. What is the probability of the event that the spinner A.) lands on an odd number? B.)lands on a number divisible by 3? C.)does not land on 5,6, or 7? D.)lands on a number less than 4?

38. ## SOCIAL STUDIES!

10. "Liberty and Union, now and forever, one and inseparable!" –during a debate in the Senate, 1830 Following the War of 1812, regional issues brought conflict to the American political scene. Which eloquent speaker defended national interests in this

39. ## math

Find an equation of the line (in slope-intercept form) that passes through the point (7,5) and is perpendicular to the line 7x + 10y - 17 = 0 y=?

40. ## MATH

if 5 times a certain integer ìs subtracted from twice the square of the integer the result is 63. find the integer

41. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 45.9° above the horizontal, and with a speed v = 32.3 m/s. Assuming

42. ## social studies

how can we say that the democracy is the only best system of good governance for a country.

43. ## Please translate from spanish to english

La familia Gutierrez tiene dos hijos. Ramón tiene 15 años. Es el hijo mayor. Su cumpleaños es el veinte de agosto. Rogelio tiene 13 años. Es el hijo menor. El cumpleaños de Rogelio es el 1 de diciembre. Ramón y Rogelio tienen dos primas. Ellas se

44. ## Physics

An airplane is ﬂying in a horizontal circle at a speed of 104 m/s. The 88.0 kg pilot does not want the centripetal acceleration to exceed 6.15 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

45. ## algebra

Why did the ghost decide to haunt city hall?

46. ## PHYSICS 2

Near San Francisco, where the vertically downward component of the earth's magnetic field is 6.8 x 10-5 T, a car is traveling forward at 17 m/s. The width of the car is 2.1 m. Find the emf induced between the two sides of the car. If positive charge

47. ## Elmentary Math for Teachers II

From a set of eight marbles, five red and three white, we choose one at random. What are the odds in favor of choosing a red marble?

48. ## biology

Will someone please check my answers? 1. Which process results in an individual inheriting the incorrect number of chromosomes? a.)mutation b.)nondisjunction

49. ## Biology

What is one negative effect of indirect artificial selection?

50. ## Spanish

4. If you have one brother and one sister, which term(s) could you use to talk about both of them? mis hermanas *mis hermanos Please Help Thank You

51. ## math

Find an equation of the line (in slope-intercept form) that passes through the point (7,5) and is perpendicular to the line 7x + 10y - 17 = 0 y=?

52. ## physics

A bicycle wheel has a diameter of 57.7 cm and a mass of 2.66 kg. The bicycle is placed on a stationary stand and a resistive force of 156 N is applied tangent to the rim of the tire. Assume that the wheel is a hoop with all of the mass concentrated on the

53. ## Physics

4 kg mass is placed on the smooth horizontal tabke.two light inextansible strings are connected to it and two masse 2kg and 5kg are attached to the free ends of the strings. Find the accelaration of each objects and the tension of the strings

54. ## Calculus

Use the intermediate value therom to show that there is a root of the given equation in the specified interval. x^5-7=2(25-x); (2,3) Please explain for understanding and show work, Thank you in advance :)

55. ## Algebra

Evaluate e^0.1 to four decimal places

56. ## physics

A phone cord is 3.55 m long. The cord has a mass of 0.200 kg. A transverse wave pulse is produced by plucking one end of the taut cord. The pulse makes four trips down and back along the cord in 0.775 s. What is the tension in the cord?

57. ## Chemistry

How many grams of Ca3(PO4)2 can be formed from 206 g of calcium nitrate and 140 g of phosphoric acid?

58. ## Social studies ASAP

Which of the following helped to increase the populations of northeastern cities more diversity successful cotton crops growth of factories and trade building of the Erie Canal i chose building of the erie canal

59. ## Physical Science

Predict the shift of equilibrium for each of the following conditions in the following reaction involving gaseous reactants and products: N2 + 3H2 = 2NH3 + heat

60. ## Physical Science

Predict how each of the following changes will affect the following reaction involving gaseous reactants and products: 2NO2 = N2O4 + heat a. the temperature is increased. b. the pressure is increase. c. N2O4 is removed from the equilibrium mixtur. d. NO2

61. ## Physics

A projectile is fired at 65.0° above the horizontal. Its initial speed is equal to 37.5 m/s. Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored.At what time after being fired does the projectile

A small steel ball bearing with a mass of 17.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.23 m. Calculate the horizontal distance the ball would travel if the same spring

63. ## math

in a mathematics class, half of the students scored 91 on an achievement test. with the exception of a few students who scored 47, the remaining students scored 71. which of the following statements is true about the distribution of the scores? a: the mean

64. ## chemistry

Ethylene glycol (antifreeze) has a density of 1.11 {\rm g/cm^3}.What is the mass in G of 435mL of this liquid?

66. ## physics

A particle moves along a circular path over a horizontal xy coordinate system, at constant speed. At time t1 = 4.60 s, it is at point (4.30 m, 6.20 m) with velocity (3.30 m/s) and acceleration in the positive x direction. At time t2 = 13.0 s, it has

67. ## College Algebra

The distance, d, in feet that an object falls in t seconds is modeled by the formula d=16t(2) if you dive from a height of 128 feet, how long will it take to hit the water? (answer may be in simplified radical form).

68. ## Applied Calculus......

Rewrite the expression using positive exponents only. (Simplify your answer completely.) (x^3-y^3)(x^-3+y^-3)

155. ## math help please urgent

the difference of two numbers is 27. the first number is equal to one more than twice the value of the second number. find both numbers. please show work.

156. ## math

5 6/9 - 2 2/5= I need to show work I really have a hard time with these ones not sure what to do

157. ## english (theses writing)

Can you give us a topic on our thesis about civil engineering?

158. ## Elementary Algebra

the width of a garden is 4 times it width the wall of her house forms one width of the triangle he uses 45 feet of fencing for the other 3 sides of his garden what are the length and width of his garden. what is the answer

159. ## Science

Having trouble with the question below. Clouds form when air is: a. swirled by wind b. heated by the sun c. turned into ozone Thanks.

160. ## Physics question

A boy intend to move an mkg crate across the floor by applying a constant force p newton on it.the coeficient of friction between the floor and crate is ü.which of these is the best option for his task?

161. ## physics

a boy throws a ball from the top of a tower with velocity 20 m/s in horizontal direction. The speed of the ball after 2 seconds is?

162. ## Math

An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?

163. ## Statistics

An Adviser has 9 products he wants to tell a client about, but only has time to tell him about 4. How many different ways can he give the details on 4 different products to the customer?

164. ## Venn Diagrams

P(Z)= .40, P(Y)=.30, P(Z ⋃Y)=.58 Find the following: P(Z’ ⋂Z’) P(Z’⋃ Y’) P(Z’⋃ Y) P(Z⋂ Y’)

165. ## Algebra2

Factor the polynomial p(x)=x^4-x^3-6x^2+4x+8

166. ## Physics

The coal car for a train has a mass of 1796 kg when it is empty. The track exerts a friction force of 3132. What force should the be exerted on it by the locomotive, to produce an acceleration of 1.3? (please report the numerical value to 2 decimal places-

167. ## world history

Explain the importance of Roman technology and engineering? Cover two separate kinds of Roman technology and engineering.

168. ## EVERYTHING

WHY DOES IT TAKE SO LONG TO ANSWER ;(

169. ## Chemistry

If you mix 10 mL of 6 M HCl (aq) and 10 mL of 3M NaOH, will the solution be acidic, neutral, or base?

170. ## BCOM/475

what makes the six principles of dynamic, continuous, circular, unrepeatable, irreversible, and complex so unique?

172. ## math

How do you evaluate i to large powers such as i^1992, i^1993, and i^2000 without a calculator?

173. ## College Algebra

for the sets {1,3,5,7,9} and {1,2,3,4,5} Define the ¿ and the U.

174. ## Business Need Help ASAP

What can I use as key words to search for information regarding REI's SCM? I have been on this assignment forever and trying to think of some more important information regarding REI's SCM.

175. ## Physics

The condensing pressure is 260psig and the metering device inlet temperature is 100 degrees for R-22 what is the total subcooling in the system?

176. ## math

how many square feet are there in an area of 1.00 square meters(1 ft=0.305)

177. ## English

1. The distance to the finish line seemed (endless). 2. I have ever ran so (fast). 3. Eli ran a surprisingly (fast) time in the trial. 4. He walked (confidently) to the starting blocks. 5. Is the high jump the first (field) event? 6. We looked (exhausted),

179. ## math

in a rectangular field adjacent sides differ by 17 cm.its diagonal length is 25 cm.find the cost of fencing the field at rs 5 per metre

180. ## social studies

could you pl let me know the distinction between galaxy and milkyway in solar system

181. ## maths

Two trains A and B 50kms apart are approaching each other at 30km/hr and 20km/hr respectively. A bee travelling at 80km/hr continually hovers betweenthe two trains. How many km will d bee cover before d two trains collide?

182. ## math-trig

tan(t)-sec^2(t)/tan(t)

183. ## math

isosceles triangle base length 21cm and side length 32cm

a/4=13

185. ## Ms. Sue

can you do me a favor and look at my science question? please?

186. ## Math

solve by the elimination method 5u+3v=-17, 2u+v=-7 would there be a solution or not?

187. ## math

5 6/9 - 2 2/5 =

b2-12b+144=0

189. ## finances

if you have \$10,000.00 in credit card debt with a 14% interest rate when is it beneficial to pay off the debt versus putting the money is a savings account?

190. ## english

I have a data story to write on employment and in my city unemployment for blacks is double the amount it is for whites.. I'm suppose to speak with employment agencies and speak with them about this issue. Do you guys have any suggestions of any

837divied 31

192. ## math

8 2/6 + 7 1/4 = 15 1/6 not sure this is right?