# Questions Asked onOctober 9, 2010

1. ## Maths

Among the examinees in an examination 30%, 35% and 45% failed in Statistics, in Mathematics, and in at least one of the subjects respectively. An examinee is selected at random. Find the probabilities that a. He failed in Mathematics only b. He passed in

2. ## Physics

My answer was 19.8 cm but it was incorrect. A basket of negligible weight hangs from a vertical spring scale of force constant 1500 N/m. If you suddenly put a 3.00 kg adobe brick in the basket, find the maximum distance that the spring will stretch.

3. ## math

For a fair coin tossed three times, the eight possible simple events are HHH, HHT, HTH, THH, HTT, THT, TTH, TTT. Let X = number of tails. Find the probability distribution for X by filling in the table showing each possible value of X along with the

4. ## chemistry

Na3PO4(aq) + AlCl3(aq) produces? Complete and balance each of the following equations. If no reaction occurs, write NOREACTION.

5. ## math

a. A box contains three white balls and two red balls. A ball is drawn at random from the box and not replaced. Then a second ball is drawn from the box. Draw a tree diagram for this experiment and find the probability that the two balls are of different

6. ## physics

A moving rod is 12.0 cm long and moves with a speed of 15.0 cm/s. If the magnetic field is 0.800 T, calculate (a) the emf developed, and (b) the electric field in the rod. I got a)0.0132v and b).12v/m

7. ## physics

A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If the coefficient of friction between the skis and the snow is .08, find the speed of the skier when he reaches the top of the

8. ## chemistry

In a laboratory experiment, a 18.0 ml sample of NaCl solution is poured into an evaporating dish with a mass of 24.00 g. The combined mass of the evaporating dish and NaCl solution is 37.15g. After heating, the evaporating dish and dry NaCl have a combined

9. ## Chemistry

What is the number of grams of Hydrogen in 5.45 x 10^22 molecules NH3?

10. ## statistics

Women comprise 80.3% of all elementary school teachers. In a random sample of 300 elementary teachers, what is the probability that more the 3/4 are women?

11. ## religion

The Middle East is the spiritual homeland for all of the following world religions EXCEPT: a. judaism b.christianity c.islam d.buddhism

12. ## physical science

Calculate (to the nearest 0.1 u) the formula mass of these compounds. (a) rubidium nitrate, RbNO3 u (b) aluminum peroxide, Al2(O2)3 u (c) water, H2O u

13. ## chemistry

In acidic solution MnO4- oxidizes H3AsO3, a weak acid, to H3AsO4, a weak acid, and is reduced to Mn2+. Write the balanced net ionic equation for this reaction. How many H+ are there in the balanced equation

14. ## math

A bacteria culture starts with 1,000 bacteria and doubles in size every 2 hours. Find an exponential model for the size of the culture as a function of time t in hours. f(t) = 1

15. ## physics

An electron with a speed of 1.3 × 107 m/s moves horizontally into a region where a constant vertical force of 4.4 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the

16. ## Psychology

Samantha is suffering from fatigue and sometimes cannot make herself get of of bed in the morning. She feels that the world is a sad, unhappy place and would like to be relieved of her existence. Dr. Powell and Samantha examine her feelings very closely

17. ## Chem

The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 0.020 mol of Demerol hydrochloride? I got 6.640g is this right?

18. ## chemistry

Suppose 70.00 mL of a lithium hydroxide, LiOH, solution requires 55.42 mL of a 0.1050 M solution of propanoic acid, C2H5COOH, for neutralization. LiOH + C2H5COOH ® C2H5COOLi + H2O What is the concentration of the base solution? 0.08313 M 0.1663 M 0.3325 M

19. ## Maths

From a set of 1000 observations known to be normally distributed, the mean is 534 cm and SD is 13.5 cm. How many observations are likely to exceed 561 cm? How many will be between 520.5 cm and 547.5 cm? Between what limits will the middle 50% of the

20. ## chemistry

Magnesium reacts with HCl to produce magnesium chloride and hydrogen gas. Mg(s)+2HCl(aq)->MgCl2(aq)+H2(g). What is the molarity of the HCl solution if 330 ml of the HCl solution reacts with magnesium to produce 7.40 L of H2 gas measured at STP?

21. ## Chemistry

Preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate How can i explain the key features of the periodic table relate to the conclusions of the above experiment, i need to

22. ## CHEMISTRY- vapour pressure

Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium vapour pressure of bromobenzene is 137mmHg and that of chlorobenzene is 285mmHg. Calculate the equilibrium vapour pressure

23. ## algebra

the acme widget company has \$13,000 available for making widgets. part of the money is spent on an advanced widget-bending machine costing \$1,000. the manufacturing cost for each widget is \$3. how many widgets can be made with the money available?

24. ## chemistry

A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant externam pressure of 2.00 atm at a constant temperature. Calculate the work in KJ for the gas expansion (Boyle's law applies)

25. ## physics

A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?

26. ## Physics

What is the instantaneous velocity of a freely falling object 10s after it is released from rest? What is its average velocity during this 10s interval? How far will it fall during this time? For the average speed I got 50m/s nd for the last one I got 500m

27. ## Physics

A 21.0-kg box rests on a frictionless ramp with a 15.1° slope. The mover pulls on a rope attached to the box to pull it up the incline. If the rope makes an angle of 43.6° with the horizontal, what is the smallest force F the mover will have to exert to

28. ## PreCalc

The decibel (dB) is defined as dB= 10log (P2/P1), where P2 is the power of a particular signal. P1 is the power of some reference signal. In the case of sounds, the reference signal is a sound level that is just barely audible.How many dBs does a sound

29. ## empirical formula of a compound

if 11.80 g of iron reacts with 5.06 g of oxygen . Determine the empirical formula of the resulting oxide ?

30. ## CHEMISTRY- molality

a sucrose solution was prepared by dissolving 13.5g sucrose in enough water to make 100ml of solution. the density is 1.050gml. calculate molality

31. ## English

Here are some more sentences I'd like you to check. Thank you very much. 1) He can take a pound of flesh from Antonio on the condition (No: on the condition) that he doesn't shed a single drop of Antonio's blood. 2)News is brought that all of Antonio's

32. ## physics

A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?

33. ## physics

A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2. What acceleration would the force give to an object of mass (a)m2 – m1 and (b)m2 + m1?

34. ## college algebra

Kepler’s third law. According to Kepler’s third law of planetary motion, the ratio t^2/r^3 has the same value for every planet in our solar system. R is the average radius of the orbit of the planet measured in astronomical units (AU), and T is the

35. ## Chem

Given that Kw = 2.4x10^-14 at 37 celsius, compute the PH of a neutral aqueous solution at 37 celsius, which is the normal human body temperature. Is PH = 7 solution acidic, basic, neutral at 37 celsius? Thank you!!!!!!

36. ## college

How many milliliters of 0.100 M KOH would you need to titrate 25.0 mL of the oxalic acid solution

37. ## physics

A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?

38. ## chemistry

What volume of 0.174M Na3PO4 solution is necessary to completely react with 89.1mL of 0.106M CuCl2? 2Na3PO4(aq) + 3CuCl2(aq) produces Cu3(PO4)2(s)+ 6NaCl(aq)

39. ## Psychology

Humanism denies the role of determinism, but elevates the role of: A) suggestion B) positive thought processes C) free will D) Gestalt I believe the answer is "C" free will

A 0.386g sample of a protein was dissolved in water and made up to a volume of 60mL at 21.0°C. At this temperature the osmotic pressure of this solution was 1.24mmHg. Calculate the molecular mass of the protein 12682 g mol-1 95025 g mol-1 9627613 g mol-1

41. ## Chemistry

An atom contains a total of 29 electrons. When the atom is in the ground state how many principle energy levels will contain electrons? a: 1 b: 2 c: 3 d: 4 How do you figure this out?

42. ## physics

A tennis ball rolls off the edge of a tabletop 0.800m above the floor and strikes the floor at a point 1.10m horizontally from the edge of the table. 1) Find the time of flight of the ball. 2) Find the magnitude of the initial velocity of the ball. 3) Find

43. ## Stats

There are four major political parties in the country Treon. A public research group is interested in finding out whether there is any relationship between the party that is supported by a citizen of Treon and that citizen's socio-economic status. For the

44. ## empirical formula of a compound

how many grams of Mg combine with 1.50 g of Cl ions in MgCl2 ?

45. ## math-algebra

A launched rocket has an altitude, in meters, given by the polynomial h = vt -4.9t^2, where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket is airborne. If a

46. ## CHEM- FP

The boiling point of water at 735mmHg is 99.073°C. What mass of BaCl2 should be added to 2.28kg water to increase the boiling point to 100.000°C ? Kb for water = 0.510 K kg mol-1 2589 g 777 g 734 g 288 g 863 g

47. ## Chemistry

Compare the amount of heat required to vaporize a 200.-gram sample of H20(L) at its boiling point to the amount of heat required to melt a 200.-gram sample ofH20(s) at its melting point.

48. ## math

9. An isosceles triangle is drawn with its vertex at the origin and its base parallel to the x-axis. The vertices of the base are on the curve Find the area of the largest such triangle.

49. ## Physics

A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the

50. ## Chem

A 50 ml sample of 0.025M AgNo3 is mixed with 15 ml of 0.04 M CrCl3. How many grams of AgCl will precipitate? Please show steps

51. ## physics

Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the table is 0.400. The objects have masses of m1 = 3.00 kg, m2 = 1.45 kg, and m3 = 1.90 kg, and the pulleys are frictionless.

52. ## math

find a function y=ax^2+bx+c whose graph has an x-intercept of 1, a y-intercept of -2, and a tangent line with slope -1 at the y-intercept.

53. ## Pre-Cal

A box with a square base and an open top is constructed from 5400 cm^2 of cardboard. Find the dimensions of the largest possible box. I know the answer is : base lenght - 42.4 cm height- 21.2 cm please help me, thank you so much :)

54. ## Psychology

Behavioral and psychodynamic perspectives differ in that the former emphasizes the____, while the latter focuses on___. A) the blank slate;pattern of traits B) emotional life;objective life C) determinism; functionalism D) observable behavior;inner life I

55. ## physical science

Volcanoes emit much hydrogen sulfide gas, H2S, which reacts with the oxygen in the air to form water and sulfur dioxide, SO2. Every 69 tons of H2S reacts with 97 tons of oxygen and forms 37 tons of water. How many tons of SO2 are formed

56. ## physics

A lead ball is dropped in a lake from a diving board 6.28 m above the water. It hits the water with a certain velocity and then sinks to the bottom with the same constant velocity. It reaches the bottom 5.16 s after it is dropped. (a) How deep is the lake?

57. ## physics

The driver of a car traveling at 30 m/s needs to quickly reduce the car’s speed to 20m/s to round a curve in the highway. If the car’s deceleration has a magnitude of 6.0 m/s2, how far does it travel while reducing its speed?

58. ## Chem

4C3H5N3O9 -> 6N2 + 12 CO2 + 10H20 + O2 a) how many grams of water would be produced if 75 g of nitroglycerin decompose? b) The creation of 3.89 moles of CO2 would require how many grams of nitroglycerin?

59. ## physics

A truck is traveling at 12 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle θ = 15° with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.7. How far does the truck skid

60. ## math

After several drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, with one fourth being removed every hour, find the person's blood alcohol level after 2 hours.

61. ## home economics

what are the different careers in home economics and their qualifications.

62. ## home economics

what are the different careers in home economics

63. ## physics

1.The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2. 2.An airplane taking off from a landing field has a run of 500 m. It starts from rest, moves with constant acceleration, and

64. ## Chemistry

You have a bottle of 20% NaOH. You will use some of it to make a new solution by dilution with water. How musch 20% NaOH is needed to prepare 150mL of 7% NaOH by dilution.

65. ## physics

A diver running 1.3 m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 2.5 s later. How high was the cliff and how far from its base did the diver hit the water

66. ## physics

An electron with a speed of 1.3 × 107 m/s moves horizontally into a region where a constant vertical force of 4.4 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the

67. ## physics

A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s

68. ## chemistry

5.50 grams of nitrogen triiodide are detonated in a closed 7.00 L flask that was under full vacuum initially. The nitrogen triiodide forms nitrogen gas and iodine gas upon detonation. What is the partial pressure of the iodine gas (in Pa) when the vessel

69. ## math

find 4 consecutive odd integers such that the sum of 7 times the smallest number and twice the largest is -91.

70. ## Chemistry

CuSO4 + X h20 -> CuSO4 +xH20 ... a 9.6 g sample of CuSO4 was allowed to absorb water. After absorption the sample weighed 15.01 grams. What is the value of x?

If you don't know what page the word keening is on in the book Hatchet then can you tell me were to find the book online so I can read it online. Thanks!

An apple has 24 fewer calories than a banana. If 7 bananas have the same number of calories as 10 apples, how many calories are in a banana?

73. ## chemistry

Ok so im just totally confused because i don't technically have chemistry teacher (i have cancer so i cant go to school so while i have a teacher i can email questions to, he doesnt really help so im stuck teaching myself) & i didn't get any reference to

74. ## math

jim wants to place carpet in his living room.the dimensions of his living room are 15 3/4 feet by 18 1/8 feet.aprocimately how many square feet of carpet does he need to cover his living room????thanks for helping

75. ## physics

A motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of (a) the net force on the rider and (b) the force on the rider from the motorcycle?

76. ## college kinetics chem

what is the rate law for 2OF2 yeilds O2 + 2F2

77. ## physics

A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the

78. ## Finance

Please help me out this problem! :) suppose that I buy a 10 yr bond today for \$1000 and the interest rate when the bond is issued is 5 percent. the day after I buy the bond, the market interest rate on 10yr bonds rises to 7percent. if I keep the bond for

79. ## Stats

a) IHI insurance is interested in determining whether younger drivers (below the age of 25) are more prone to motor accidents than older drivers (25 or older). A random sample of 70 IHI policyholders below the age of 25 were selected and whether they had

80. ## Physics

A ball was thrown with a velocity of 150 ft/ s at angle of 45 degrees above the horizontal. a)Find the range and the time of flight. b)What is the maximum height reached?

I am reading the novel Hatchet in my class. I am not aloud to take the novel home so that's why I have asked this question: What page is the word keening on in the novel Hatchet? We have read chapters 1-4 and I need to know what page keening is on. Please

82. ## chemistry

What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate

83. ## algebra

Two planes are 1,400 miles apart. They fly towards each other, one at 125 mph and the other at 175 mph. How long does it take the planes to pass each other (round to the nearest hundredth)?

84. ## Physics

A spring gun launches a ball horizontally from 1.3 m above the floor. the ball strikes the floor 2.2m away, measured horizontally. Calculate A .. the time the ball is flight B... the vertical component of its velocity at the time it strikes the floor C....

85. ## pHYSICS

A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; s b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s

86. ## The scarlet letter- amer lit

I have to write an essay for english here is the topic: Identify the protagonist: The critic Randal Stewart has this is say about Hester and Dimmesdale: ..."But hester is not the protagonist,the chief actor,and the tragedy of the scarlet letter is not her

87. ## English Ms. Sue

I would like to know how I could write this in my own words. I wondering if you could help me out because I don't know what to put. Thank you and enjoy the rest of your weekend. Style is known for being the literary element that makes language memorable.

88. ## algebra

a rental car costs \$24 per day plus 25 cents per mile. the total trip costs \$54. how many miles were traveled if the trip lasted one day?

89. ## physics

An electron with a speed of 1.3 × 107 m/s moves horizontally into a region where a constant vertical force of 4.4 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the

90. ## Psychology

Dr. Wade excitedly explains that the difference between a male and female is apparent in the structure and function of the brain. She is so pleased that you have asked about her research that she eagerly shares slides of PET scans which support her

91. ## mla format

For mla formatting an essay how do you write and cite a quote from a book? also, is the quote suppose to be in italics? thanks

92. ## English

Would someone look over my paragraph and let me know if and where I need to make improvements In Garrett Hardin's "Lifeboat Ethics", the paragraph that touched me the most is "Overloading The Environment". Hardin talks about India and how the population is

93. ## algebra

the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?

94. ## physics

motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of the force on the rider from the motorcycle?

95. ## chemistry

what are the errors in the double-indicator titration of (sodium carbonate and sodium hydrogen carbonate) against hydrochloric acid, using Phenolphthalein and Methyl orange as indicator? how can I improve the it?

96. ## Stats

Give the numerical value for each of the following descriptions concerning normal distributions by referring to the table standard unit normal distribution for N(0,1) The 5th percentile of N(20,36) Mean and variance

97. ## math

Find the expected value, ì, for the sum of two fair dice. The probability distribution for the sum of two dice is given in the table. ì = 1 2=1/36, 3=2/36, 4=3/36, 5=4/36, 6=5/36, 7=6/36, 8=5/36, 9=4/36, 10=3/36, 11=2/36, 12=1/36

98. ## Psychology

Psychologists who believe in _________ are most likely to attempt to understand diversity in ethnic background as influence on behavior. A) individual differences B) free will C) determinism D) universal principles I think the answer is "D" am I correct?

99. ## US HISTORY

i) Create a timeline tracking the major themes/paradigm shifts in American History from the Columbus's voyages through the Mexican-American War (1846-1848). ii) Include the following in your descriptive analysis: (1) The cultural patterns of the Native

100. ## Chemistry

A titration was performed in which 56 ml of a .022M HCL solution was used to titrate 50 ml of a PB(NO3)2 solution a) what was original concentration of the Pb(NO3)2? b) How many grams of PBCl2 will ppt?

101. ## grammar

correct the errors in the following sentence : My best childhood friend is her

102. ## chemistry

I need help.. this one question says explain why the measurement "12.5 * 10^-6 centimeters" is written in correctly in scientific notation.. is it because it is not necessary to have the centimeters in there?

103. ## chemistry

what is the formula of the product form when CH3NH2 reacts eith hydrogen ion?

104. ## chemistry

Chlorine is used to disinfect drink water supplies and pool water. Suppose you have 17.3 L of Cl2 in a cylinder at 1200 torr and 24 C. How many grams of chlorine do you have in the gas cylinder?

105. ## physics

What is the density of an unknown spherical substance with mass of 30 g and radius of 0.35 inches in kg/m3? (density= mass/ volume)

106. ## algebra

it has been found that the world record for the men's 10,000 meter run has been decreasing steadily since 1950. the record is approximately 28.7 minutes minus 0.05 times the number of years since 1950. assume the record continues to decrease in this way.

107. ## algebra

a bread recipe calls for 2/3 cup of rye flour. you only have 3/4 cup on hand. what percent of your original amount of rye flour will remain after baking the bread?

108. ## Chemistry

What is the total number of principal energy levels or shells in an atom with an atomic number of 30? and why? (1) 3 (2) 4 (3) 5 (4) 6

109. ## Physics-please check-this can't be right

I asked about a golf ball hit at a 35 degree angle and the hole was 175 m away. What was speed of ball. I got a response, and it follows with my response. I'm not doing something right, can you help, please.Physics - drwls, Saturday, October 9, 2010 at

110. ## Spanish

Complete this conversation between two friends, Ana Margarita and Fernando. They are planning to go to a party with a group of students from the United States. Use ir, voy, vas, va, vamos, and van. 1.Ana Margarita: ¡Hola, Fernando! ¿Adónde * ahora? 2.

111. ## Scarlet Letter - essay - Thesis help

So I am writing about how I agree with this one critic that Hawthorne over used symbolism in the book the Scarlet Letter. My thesis: He stressed the sin by stretching the idea and making it seem like it is a mystical character itself, and allowing it to be

112. ## MEDICAL BILLING/CODING

DO ANYONE HAVE THE LAYOUT FOR INTERPERSONAL COMMUNICATION GRADED PROJECT I AM STUCK NEED IDEAS

113. ## physics

The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.

114. ## algebra

a public television station set a goal of \$350,000 in pledges during a certain month. the total pledged was \$525,000. What percent of the station's goal was reached?

115. ## Health information technology

when the compute service bureau destroys or erases records, should the erasure be verified by the bureau to the physician?

116. ## chemistry

A solution contains 4.46 g KCl in 178 mL of solution. The density of the KCl solution is 1.11 g/ml. What is the percent (m/m) for the potassium chloride solution?

117. ## English 2

Need help with this-- Create an imaginary dialogue between Laotzu and a contemporary high school student in which the student asks for the philosopher's advice. Focus the dialogue on a concrete situation involving school, work, or relationships, and be

118. ## Chemistry

What volume of 0.5 N nitric acid would be required to completely neutralize 300 ml of 1.0 N sodium hydroxide?

119. ## Physics

i saw this question from physics book, can someone please help me solve this.. thank you.. A man pulls a 500 Newton block up a plane inclined 300 with the horizontal with a force of 300 Newton parallel to the plane. What net force tends to pull the block

120. ## Chemistry

In reflux, water normally enters from the bottom of the condenser and exits from the top. What causes water to be able to rise to the top of the condenser? Also, from the following website, it is stated that in the case of the Allihn condenser, water

121. ## Physics

True or false the work done by a non-zero net force on an object, moving on a horizontal plane, is equal to the change in the potential energy of the object? and don't forget to give the correct explanation for my q.

An apple has 24 fewer calories than a banana. If 7 bananas have the same number of calories as 10 bananas, how many calories in one banana?

123. ## Math

When adding and subtracting rational expressions, why do you need a LCD?

124. ## chemistry

Please help by Monday Explain in words how you would prepare 250.0 mL of a 3.000 M solution of Ba(OH)2 starting from solid barium hydroxide and water.

125. ## Physics

True or false the work done by a non-zero net force on an object, moving on a horizontal plane, is equal to the change in the potential energy of the object? and don't forget to give the correct explanation for my q.

126. ## Wisdom Poem

Haha, k, so this is what I got for my "wisdom" poem..I know it's lame, but it's the best I can do. Think it'll do? Treat others the way you would want to be treated And make sure to be pleasant and kind Follow the golden rule and you’ll not be defeated

How do you solve a problem like this ? 16+14=14+w

128. ## economics

i want to make my assignment in witch i have to analyze a problem related to any product like sugar (economy wise) and give its solution and also write its substitutes and compliments .please give an example of economic problem of sugar

129. ## buisness and tecnoligy

How can lean manufacturing and near-sourcing help a company gain a competitive edge and prepare for the future

130. ## Physics

Can someone help with this calculation, please? A golf ball is hit at a 35 degree angle and the hole is 175m away. What is the speed of the ball necessary to hit the hole? Thank you for any help you can give-

131. ## p6

A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. What is the average induced emf in the

132. ## physics

A goalie slips and falls to the ground and the opponent's forward, 20 m out in front of the net boots the ball toward the net at a speed of 15.9m/s and an angle of 45 degrees above the horizontal. Does the ball go into the net?

133. ## chemistry

If 50ml of 0.1M NaOH are mixed with 35ml of 0.1M HCL will the solution be acid, base or neutral? why?

134. ## physics

A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2. What acceleration would the force give to an object of mass (b)m2 + m1? is b) equal to 2.1?

135. ## statistic

o Formulate a hypothesis statement regarding your research issue.? o Perform a regression hypothesis test on the data.? o Interpret the results of your regression hypothesis test.? 11,809 12,009 12,095 12,050 11,671 11,952 11,975 11,774 10,864 11,402

136. ## physics

A 50 kg boy picks up a 11 kg stereo and raises it 0.75 m from the floor to a tabletop. How much work did he do on the stereo? How much work did he do to raise his own center of mass 0.40 m in the process? I'm assuming you use W=mgy equation but do you

137. ## Chemistry

In reflux, water normally enters from the bottom of the condenser and exits from the top. What causes water to be able to rise to the top of the condenser? Also, I read from wikipedia website that in the case of the Allihn condenser, water enters from the

138. ## Eng101

The assignment is to write an essay explaining a concept. My teacher is pretty unclear what she means. Any ideas?

139. ## Physical science

What do you call the phenomenon that causes dispersion of white light when it passes through a triangular prism

140. ## physics

A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.77 m/s. The car is a distance d away. The bear is 17.8 m behind the tourist and running at 6.68 m/s. The tourist reaches the car safely. What is the

141. ## CHEMISTRY- molarity

what is the molarity of the solute in the following solution: a 12.5% w/v Co(NO3)2 solution?

142. ## physics

Can an adult male be rescued from a fall by tying a rope to a car's axle?

143. ## spanish

How does this sound? 8 de octubre ¡Hola, Marcia! Mi madre en casa de mis abuelos. No vamos al cine. Yo tengo que pasar la aspiradora y mis hermonos tienen que lavar los platos. Mi dormitorio es desordenada. Hago la cama y arreglo el cuarto. Yo tengo que

144. ## chemistry

The gas constant (R) has many different unit formulations. Convert the value of 8.314 (m3-Pa)/(K-mol) into units of (L-torr)/(K-mol).

145. ## Chem

A titration was performed in which 56 ml of a .022M HCL solution was used to titrate 50 ml of a PB(NO3)2 solution a) what was original concentration of the Pb(NO3)2? b) How many grams of PBCl2 will ppt?

146. ## english

could you unscramble these letters into two words? TURUENITAPIN

147. ## algebra

an insecticide originally contained 1/2 oz of pyrethrins. the new formula contains 5/8 oz of pyrethrins. what percent of pyrethrins of the original formula does the new formula contain?

148. ## physics

Let the mass of the block be 7.7 kg and the angle è be 25°. Find (a) the tension in the cord and (b) the normal force acting on the block. (c) If the cord is cut, find the magnitude of the block's acceleration.

149. ## math

what'S THE PERCENT OF 136,800,000???

151. ## Physical science

What do you call the phenomenon that causes dispersion of white light when it passes through a triangular prism

152. ## Staistics

Give the numerical value for each of the following descriptions concerning normal distributions by referring to the table for N(0,1) The 5th percentile of N(20,36)

153. ## gcse science

i need to find 3 examples of using combustion in everyday life and then i need combustion example , fuel used , and is fuel a fraction of crude oil? thankyou for your help:-}

154. ## English

Thank you very much. Can you please check these sentences, too? 1)He should ask a moneylender for a loan. (OR He should get a loan from a moneylender?). 2)He agrees to the loan on condition (OR on the condition??) that if he fails to pay within thirty

155. ## algebra

31 is 9 more than twice a number

157. ## english

Okay I figured out my question that I posted before. But can you please explain to me what this means? Style is not applied to writing. It is the writing. I don't understand what that means. Thank You

158. ## Math

A patient needs at least 36 units of vitamin supplement A, at least 36 units of vitamin supplement B and at least 24 units of vitamin supplement C. Local brand capsules contain 2 units of A, 3 units of B and 1 unit of C costs P15, while foreign brand

159. ## Earth Science

Give the latitude and longitude to the centers of these bodies of water: The sea of japan and the indian ocean.

I was wondering if someone can tell me if I did this right: The gas constant (R) has many different unit formulations. Convert the value of 8.314 (m3-Pa)/(K-mol) into units of (L-mmHg)/(K-mol). This is what I did: (8.314 m3-Pa/K-mol)*(1 atm/101325 Pa)*(760

I was wondering if someone can tell me if I did this right: The gas constant (R) has many different unit formulations. Convert the value of 8.314 (m3-Pa)/(K-mol) into units of (L-mmHg)/(K-mol). This is what I did: (8.314 m3-Pa/K-mol)*(1 atm/101325 Pa)*(760

163. ## algebra

a public television station set a goal of \$350,000 in pledges during a certain month. the total pledged was \$525,000. What percent of the station's goal was reached?

164. ## Chemistry

For a Vibrational Raman, will the S or O branch be at the higher wavelength? For a Rotational Raman, will the S or O branch be at the higher wavelength?

165. ## scarlet letter

Hey I need a quote about how Dimmesdale is torment by Chillingworth through hi "mind" thanks:) can you also give the page number?

166. ## spanish

who understands spainsh???????

167. ## chemistry

if an antacid tablet was dissolved in water would the solution become acid, base or neutral? why?

168. ## calculus

find the indefinite integral of ln y divided by 6y cube

169. ## math

help me solve r=3h+3v

170. ## algebra

the time that a traffic light remains yellow is 1 second more than 0.05 times the speed limit. what is the yellow time for a trafic light on a street with a speed limit of 30 mi/h

171. ## physics

Zandor is being shot out of his cannon (at a velocity of 40 m/s) at an angle of 40 degrees above the horizontal. He is planning to pass through a ring of fire (which is 60 m from where he starts) to the landing pad. How far is the ring of fire from the

172. ## Psychology

Dr. Hall believes that thought processes determine behavior. She encourages her patient to examine the way he looks at problems and solves problems. They look for successful and unsuccessful evaluations and strategies. Dr. Hall's approach

173. ## Physics

When will an object be in equilirium if different forces are acting on the object from the different systems? Would it be appropriate to use F=ma to find the equilibrium?

174. ## algebra

the time that a traffic light remains yellow is 1 second more than 0.05 times the speed limit. what is the yellow time for a trafic light on a street with a speed limit of 30 mi/h?

175. ## Chemistry

Is butyl paraben light sensitive?

How long, to the nearest year, will it take an investment to triple if it is continuously compounded at 16% per year?

177. ## Physical science

What do you call the phenomenon that causes dispersion of white light when it passes through a triangular prism

178. ## English

we are supposed to write this passage from "a midsummer night's dream" in our own words: Set your heart at rest The Fairyland buys not the child of me His mother was a vot'ress of my order And in the spiced Indian air by night Full often hath she gossip'd

179. ## Maths

5. Compute the two regression equations on the basis of the following data: X Y Mean 40 45 Standard Deviation 10 9 Given that the coefficient of correlation between X & Y is 0.50. Also estimate the value of Y for X=48?

180. ## Physics

Zandor is being shot out of his cannon (at a velocity of 40 m/s) at an angle of 40 degrees above the horizontal. He is planning to pass through a ring of fire (which is 60 m from where he starts) to the landing pad. How far is the ring of fire from the

181. ## algebra

the number 12 is 14 greater than twice a number. find the number.

182. ## algrebra

can someone show the steps 6*1/2-4[2-3(4*1/2-3)]=-17 in two step equation in algrebra

183. ## chemistry

Please check this and make sure i did it right.. How many centimeters are in 8534 millimeters? And i got 853 centimeters.. is that right? thanks!

184. ## English

1) Do we say "The information is correct as of 28 September 2010." or "The information is correct as at 28 September 2010."? 2) "I spoke with him yesterday." or "I spoke to him yesterday."? Someone mentioned to me that both sentences are acceptable but 1

185. ## science

if you are flying a plane at 600 km/h and you jump striaght up, where do you land and why?

186. ## math

How can I factor this: 2a^2 + 19a +42 ? I've been trying to do this for so long but I can't figure it out. Please explain the answer as well. The only way I can come up with is trial and error, and I've been trying so long and nothing fits..?

187. ## books-frankenstein

i have to take notes(annotations) on the diction, imagery, details (literary devices), language, and syntax of frankenstein. but i don't know what that means exactly. can someon show me some examples of notes you wiuld take for ch 2 so i can get an idea of

188. ## AP Bio

What are the variables, hypothesis, and purpose for both parts of Osmosis and Diffusion AP Lab?

In what jurisdiction, state and/or federal, and venue will a driver from Florida sue a driver from Washington who collided with him/her in Oklahoma?

190. ## Chem

Calculate the number of grams in 1.86 moles of K. I got 72.54g is this right?

191. ## math

the lowest and the highest number that will round to .035

192. ## Grammar

Can you find 20 errors in these paragraphs? Why are great numbers of students choosing to pursue their college degrees using their home computers. Benjamin Franklin said; A penny saved is a penny earned”. This principle applies to the american and

193. ## re

how does the 'lords prayer' describe god.