# Questions Asked onNovember 13, 2011

1. ## Calculus

A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s^2.) a)Find the distance (in meters) of the stone above ground level at time t. b)With what velocity does it strike the ground? (Round your answer to

2. ## Chemistry

A sample of C3H8O that contains 200. molecules contains ________ carbon atoms.

3. ## Chemistry

Write a balanced chemical equation for the reaction of propylamine with water. Is propylamine --> CH3CH2CH2NH2? Is the equation CH3CH2CH2NH2 + H2O --> CH3CH2CH2NH3+ + OH- right? Isn't this balanced?

4. ## physics

A 1.6 air bubble is released from the sandy bottom of a warm, shallow sea, where the gauge pressure is 1.6 . The bubble rises slowly enough that the air inside remains at the same constant temperature as the water. What is the volume of the bubble as it

Explain the importance of recognizing cultural variations and list 5 categories of cultural differences (10). Here is my answer: Recognizing cultural variations are important because there are a great chance that you will be communicating across

6. ## Physics

A solenoid with 200 turns and a cross sectional area of 60 cm^2 has a magnetic field of .60 T along its axis. If the field is confined within the solenoid and changes at a rate of .20 T/s, the magnitude of the induced potential difference in the solenoid

A 13-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away at a rate of 2 feet per second, how fast is the area of the triangle formed by the wall, the ground, and the ladder changing when the bottom is 12 feet

8. ## Chemistry

A 100g sample of water at 90 degrees celsius is added to a 100g sample of water at 10 degrees celsius. The final temperature of the water is which of the following: a) between 50 degrees celsius and 90 degrees celsius b) 50 degrees celsius c) between 10

9. ## Physics

A plane has an airspeed of 200 m/s due north and is subject to a westerly wind of 50 m/s. What is the planes speed relative to the ground?

10. ## Chemistry

Consider the combustion of propane: C3H8(g)+5O2(g) yields 3CO2(g) + 4H2O(l) delta H= -2221 kJ Assume that all of the heat comes from the combustion of propane. Calculate delta H in which 5.00g of propane is burned in excess oxygen at constant pressure.

11. ## chemistry

for the reaction S2F6 (g) 2SF2(g), the equilibrium concentrations are as follows: [S26]=0.000430M, [SF2]=2.08 M, [F2]=1.32M. the equilibrium constant is

12. ## physics

The brick shown in drawing the is glued to the floor. A 3500-N force is applied to the top surface of the brick as shown. If the brick has a shear modulus of 5.4 109 N/m2, how far to the right does the top face move relative to the stationary bottom face?

13. ## physics

Calculate the density of the balls in this area. Each ball has a mass of 1 kg. Estimate the area taken up by the whole structure by looking in the Parameters Palette for the diameter of the balls and multiplying this by the number of balls on each side.

14. ## US history HELP

Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

15. ## Chemistry

The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C?

16. ## physics

a horizontal force of 290N is applied to a stationary wooden box in one direction, and a 800N horizontal force is applied in the opposite direction. What additional force is needed for the box to remain stationary?

17. ## calculus

A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area. (Round to the nearest hundreth)

18. ## Chemistry

A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C · g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/°C · g) are heated to 100.0°C. The mixture of hot iron and aluminum is then dropped into 91.9 g of water

19. ## Anthropology Quiz

1. The hydraulic theory of state formation is: (Points : 1) polities conquer societies which have irrigation. polities with irrigation systems conquer smaller political units. centralized government is necessary to organize and maintain irrigation systems.

20. ## Chemistry

Chlorine gas, CL2 is used to purify water. How many moles of chlorine gas are in a 7.00L tank if gas has a pressure of 865mmHg anf temp of 24 degree celcius?

21. ## Calculus

A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs \$2 per square foot and the metal for the sides costs \$7 per square foot. Find the dimensions that minimize cost if the box has a volume

22. ## communications

Which of the following are the qualities of effective interpersonal communication conversation skills? A.making introductions, relevance, tact,and sincerity B.relevance, tact, sincerity, and giving directions C.relevance, tact, courtesy and sincerity I

23. ## Stats

Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8 minutes and a standard deviation of 2 minutes. Suppose a random sample of 25 ordering processes is selected. The standard

24. ## US history HELP

All of the following statements about the Battle of Midway are true EXCEPT that: 1. ( They never retreated :S ) the Japanese navy was forced into retreat less than six months after Pearl Harbor 2.(possible) the battle began with another Japanese surprise

25. ## College Calculus

A light is on the ground 20m from a barn. A 2m tall llama walks from the light directly toward the side of the barn at 1m/s. How fast is the height of the llama's shadow on the barn changing when he's 14m from the barn? (draw and label a nice diagram

26. ## math

1. Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged \$123.00 for 3 days and 300 miles, while Mary was charged \$216.00 for 5 days and 600 miles. What does Best Rental charge per day, for mileage?

27. ## solid mensuration

what is the area of a parabola inscribed in a rectangle 30cm long and 22cm wide

28. ## Chemistry

1. Out of all the "8" gases [Argon, Hydrogen, Nitrogen, Oxygen, Air, Helium, Methane, Carbon Dioxide], which one is the most likely to depart from the ideal gas behavior? Why? 2. Out of all the "8" gases [Argon, Hydrogen, Nitrogen, Oxygen, Air, Helium,

29. ## physics

a pet truck is moving at 25m/s north, a dog inside moves at 1.75 m/s at angle 35 degrees east of north. What is the velocity of the dog relative to the road?

30. ## chemistry

what one is the Most Soluble compound 1) CuS, Ksp = 1.27 x10^-36 2) PbS, Ksp = 9.04 x 10^-29 3) AgCl,Ksp = 1.77 X 10^-10 4) AgI, Ksp = 8.51 x 10^17 5) Not enough information. My book states that AgCl is insoluble in water and so are MOST phosphates and

31. ## English

Analyze the realtion between Angela nd Gracey. It is correct? The book “Angela”, written by James Moloney, deals with the friendship of Angela and Gracey, which drifts apart by a historical conflict, because the girls come from two completely different

32. ## physics

A 100 N force is applied to the side of a crate resting on a level floor. The crate has a mass of 50 kg. If the coefficient of static friction is ìs = .25, is the 100 N force enough to make the crate accelerate? Explain why or why not.

33. ## Physics

A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

34. ## Comm 100 college

The most important principle of language adaptation is to A.adapt the level of language to the situation and the audience. B.adapt to less formal and more colloquial so that all people will understand you. C.adapt to spoken and written substandard language

35. ## Physics

A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

36. ## chemistry

The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.42 x 10e-6 m that must be absorbed to melt 2.00 g of ice.

37. ## Trig

cos(-11pi/12)

38. ## Science

Consider the combustion of propane: C3H8(g)+5O2(g) yields 3CO2(g) + 4H2O(l) delta H= -2221 kJ Assume that all of the heat comes from the combustion of propane. Calculate delta H in which 5.00g of propane is burned in excess oxygen at constant pressure.

39. ## chemistry

The enthalpy of neutralization for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 185.0 mL of 0.400 M HCl is mixed with 152.5 mL of 0.500 M NaOH?

40. ## Chemistry

Consider the following reaction. CH4(g) + 2 O2(g) CO2(g) + 2 H2O(l) ÄH = -891 kJ Calculate the enthalpy change for each of the following cases. 1.00 103 L methane gas at 719 torr and 26°C is burned in excess oxygen.

41. ## Physics

Two Planes approach each other head-on. One plane has a speed of 800 km/h and the other has a speed of 900 km/h and they spot each other when they are initially 15 km apart. How much time in seconds do the pilots have to take evasive action?

42. ## Math

Find the instantaneous rate of change of r with respect to theta for r = (theta/2)- (1/theta).

43. ## psychology

# 1.21 (1 pts.) William is acutely retarded and requires intense care. His IQ has been measured at approximately 15. What term would be used to classify William's level of retardation? A) mild B) moderate C) severe D) profound # 1.22 (1 pts.) Shannon has

44. ## Math

What is the volume of a cone that has a radius of 3 cm and a height of 7 cm? (use 22/7 for pi) I got 594 cubic cm, but I have a feeling I'm terribly off.

45. ## Physics

A heavy-duty stapling gun uses a 0.162-kg metal rod that rams against the staple to eject it. The rod is pushed by a stiff spring called a "ram spring" (k = 32657 N/m). The mass of this spring may be ignored. Squeezing the handle of the gun first

46. ## social studies

how did the aborignal people get thie food?

47. ## psychology

# 1.31 (1 pts.) Debbie is a little girl who has been diagnosed as having autistic disorder. Each time she engages in self-injurious behavior, like head-banging, her mother immediately runs over and attempts to stop her by holding her close. According to

48. ## chemistry

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.0 g sample of CaCl2 is dissolved in 134 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the

49. ## chemistry

The combustion of 0.1619 g benzoic acid increases the temperature of a bomb calorimeter by 2.77°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) kJ/°C A 0.1510 g sample of vanillin

50. ## algebra

simplify by collecting like terms if possible 7sqrt20-8sqrt5

51. ## Math

What is 5x^2y^-3 over 25x^6y^2 in simplest form

52. ## math

write an equivalent expression using radical notation 625 3/4 Help

53. ## US history

Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

54. ## solid mensuration

what is the area of a section bounded by a closed elliptical whose major and minor segments measures 60cm and 45cm respectively?

55. ## Chemistry

1. Out of all the "8" unknown gases, which one is the most likely to depart from the ideal gas behavior? Why? 2. Out of all the "8" unknown gases, which one is most likely to behave closest to that of an ideal gas? Why?

56. ## US history

. Chapter 30 The Second World War Question MC #42 (Points: 2) The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war

57. ## Physics

A helicopter hovers above the north magnetic field pole in a magnetic filed of magnitude 0.5G perpendicular to the ground. The helicopter rotors are 10m long, are made of aluminum, and rotate about the hub with a rotational speed of 10 000 rpm. What is the

what are the importance of recognizing culture variations?is it similar to what are the importance of recognizing cultural differences?

59. ## economics

since the AC curve in the problem is upward-sloping everywhere, it is not possible to construct a zero-profit equilibrium given the assumptions of the problem (this outcome requires a U-shaped AC curve). this problem will consider an alternative example

60. ## US history

After dropping two atomic bombs on Japan, the United States: 1. accepted Japan’s surrender, albeit with the condition that the emperor could keep his throne 2. dropped a third one on Tokyo to force the Japanese to surrender 3. accepted Japan’s

61. ## calculus

the tangent to the curve y=a/x +bx at (1,3) is parallel to the line whose equation is y=2x+1. find the values of a and b.

62. ## Physics

What is the rotational inertia of a solid iron disk of mass 45 kg, with a thickness of 3.44 cm and radius of 19.0 cm, about an axis through its center and perpendicular to it?

63. ## chemistry

Aqueous solutions of iron (III) sulphate and barium hydroxide are combined. Does a precipitate form? If yes write a net ionic equation for the precipitation reaction. You first identify the formula of the aqueous compounds (note that iron is said to be

64. ## Physics

A boat can travel 2.85 m/s in still water. If the boat points its bow directly across stream whose current is .95 m/s, what is the velocity of the boat relative to the shore?

65. ## Quantative reserach

1. The average commute time via train from the Chicago O'Hare Airport to downtown is 60 minutes with a standard deviation of 15 minutes. Assume that the commute times are normally distributed. What proportion of commutes would be: a. longer than 80

66. ## Chemistry

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ÄH = -81.5 kJ A 12.4 g sample of CaCl2 is dissolved in 100. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the

67. ## Chemistry-Common ions

c=Calculate the OH- conc in a solution containing 6.2x10(-3)M Ba(OH)2 and 1.00x10(-2)M BaCl2? I thought of using the BaCl2 conc to find the conc of Ba initially, then use that in the ice table for Ba(OH)2, and solve for OH. But i dnot think that's right.

68. ## Math

How much money should be invested at an annual interest rate of 6.2% compounded continuously, to be worth at least \$58,000 after 13 years.

69. ## US history

The GI Bill did all of the following EXCEPT: 1. provide educational benefits for veterans 2. pay veterans large bonuses to remain in the military 3. provide medical treatment for veterans 4. help prevent a postwar depression 5. provide housing loans for

70. ## English

this crime is holy-------what kind of literary device is this?

71. ## Math/trig

Solve the equation in the given Domain: 1-cos theta/ sin theta = sqr3, 0degrees

72. ## Chemistry

An estimation of the radius of a lead atom: a. You are given a cube of lead that is 1.000 em on each side. The density of lead is 11.35 g/cm3. How many atoms of lead are contained in the sample. b. Atoms are spherical; therefore, the lead atoms in this

73. ## Chemistry

The value of delta H for the reaction of 2Na2O2(s) + 2H20(l)----> 4NaOH(s)+O2(g) is -126KJ When 2.0 moles of NaOH is formed?

74. ## calculus

Find the angle that maximizes the area of the isosceles triangle whose legs have length l=31 angle=

75. ## english

Is this a good paragraph with correct grammar? The Grilled Cheese Memorial and Museum is an interesting and educational place to visit. It is located in Elmwood, IL. There are many exhibits in the museum. The exhibits show all different varieties of

76. ## Calculus

At time t >or= to 0, the position of a particle moving along the x-axis is given by x(t)= (t^3/3)+2t+2. For what value of t in the interval [0,3] will the instantaneous velocity of the particle equal the average velocity of the particle from time t=0 to

77. ## Science

This is for my science hw:Sound in an empty room can be very loud, with many echoes. Describe three ways to make the room quieter. The thing is that I looked online, asked my friends for help, and everything but no avail! This has to have a scientific

78. ## algebra

Again I have no clue in figuring out this problem, please help: (3s^4-3s^3+3s^2+13s-6) + (s^5+8s^3+6s^2-3s+3) + (-6s^4+s^2-7s-6)=

79. ## Science

What determines the color of obkects that emit light and what determines the color of objects that do not? I wrote that color of objects that emit light is determined by the wavelenghts of light waves that they emit.Then I wrote that if an object does not

80. ## psychology

A newspaper advice columnist suggests that thinking can be voluntarily controlled and changed but that emotions are gut-level, biological reactions that can't be voluntarily controlled or modified. Use your knowledge of emotion research and theory to

81. ## communication

In general, thesis or central idea is supported by claims; claims are supported by proof; and A.proof is supported by development,including details and examples B.proof is supported by the specific purpose C.proof is supported by solutions A?

82. ## physics

A 36 cm diameter wheel accelerates uniformly about its center from 150 rpm to 360 rpm in 3.6 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.1 s after it has started accelerating.

83. ## Chemistry

The iodide ion can be oxidized in an acidic solution by hydrogen peroxide. One proposed mechanism for the reaction is as follows: Step 1: H2O2 (aq) + I-(aq) → H2O (l) + OI-(aq) slow Step 2: H+(aq) + OI-(aq) → HOI(aq) fast Step 3: HOI (aq) + H+(aq) +

84. ## English

I urgently need you to check these other examples. I can't find a good example with " The swan glides.../The swan hisses ..." Could you help me? 1)You will be asked to walk, trot and canter your horse around the ring. 2) The lion pounced on its pray. 3)

85. ## home economics

Explain ow the term 'expiry date' relates to food purchasing.

86. ## Physics

A 65kg person's density is 990kg/m^3 with 2.4 L of air in lungs. What vol of air would the person have to expel to bring the density to that of water 1000 kg/m^3 (neglect the mass of air)?

87. ## Calculus

You are an engineer in charge of designing the dimensions of a box-like building. The base is rectangular in shape with width being twice as large as length. (Therefore so is the ceiling.) The volume is to be 1944000 m3. Local bylaws stipulate that the

88. ## English

1. What's this? - It is goggles. - It is trousers. - It is scissors. 2. What are these? - They are goggles. - They are trousers. - They are scissors. (Are the questions and answers all correct?)

89. ## math

how do you simplify 3(x + 4) - 2(3x - 3)

90. ## University College of Applied Sciences

A rectangular object is 25 cm tall , 15 cm wide , and 10 cm deep .what is its volume in cubic centimeters , liters , and kiloliters ?

91. ## Math

Solve: ((10)/(x^2-3x+45))=x+1

92. ## statistics

A new restaurant with 123 seats is being planned. Studies show that 63% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?

93. ## math

What is 3(x +4) - 2(3x - 3) simplified a) -3x + 18 b) -3x + 12 c) -9x + 18 d) -9x + 12

94. ## edu-310

How has the influence of content and state standards improved what content is being taught in the classroom? What are some possible negative effects this mandate has had on American education? Explain.

95. ## Psy 201

Fill in the blank- 5points each: Please fill in the blank with a word of phrase that best answers the questions. Be sure to highlight your answer, use bold font or select a different color of lettering to distinguish your answer. 1. Two biological causes

96. ## Physics

Ignoring air resistance, a ball dropped from rest at altitude 250km strikes the ground with (a) 1500m/s (b) 2200m/s (c) 2800m/s I already know that is 2200m/s but don't understand why???

97. ## psychology

# 1.11 (1 pts.) While Pete was out playing touch football with his friends, he tripped, fell, and bumped his head on the ground. Immediately afterward, he was very disoriented and kept asking his friends what time it was. Pete may have experienced A)

98. ## bio

if something is lipid solube? why might that be a good thing? for example cholorphyll and beta carotene are both lipid soluble due to thier hydrocarbon chain. why is it important that both of these molecules are lipid soluble?

99. ## Social Studies

what effect do you think the northwest ordinance had on native americans??????? plz help

100. ## calculus

The figure below shows the curves y=square root of x, x=9, y=0 and a rectangle with the sides parallel to the axes and its left end at x=a. Find the dimensions of the rectangle having the maximum possible area.

101. ## trig

find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places

Let W be the set of all continuous !@#\$%^&tions from the set of real numbers R to R. For f, g in W define f+g by (f+g)(x)=f(x)+g(x) and (f*g)=f(x)g(x). Verify that W is a commutative ring. Does W have unity? Why or why not?

103. ## Math

How to solve this? 10/(x^2-3x+5)=x+1

104. ## Chemistry

True or false? 1 mole of ozone has 1.8 x 10^24 atoms? correct if wrong THANK YOU!

105. ## Biology

When dissecting a fetal pig, how can you tell the difference between veins and arteries? I remember someone saying something about if you poke one, its spongier or something? help! Thank you!

106. ## geography

The Beaufort Sea touches what two North American countries? Canada and the United States 2. Are there any states located south of 25 degrees N latitude? If so, which one(s)? Yes, Hawaii. 3. What line of latitude falls halfway between the Tropics of

107. ## Global Politics

Describe the difference between intergovernmentalism and supranationalism. Provide useful examples from the European Union, NATO, and the United Nations.

108. ## Comm 100 college

Persuasive speeches focus on forcing the audience to change the way it thinks and feels. TRUE OR FALSE I just wanted to double check on this, because I don't think you are for say "forcing" them to think differently, but giving them the info to let them

109. ## Chemistry

I have an assignment to 'Research ionization energy levels and come up with 3 real world applications'. I'm not so sure how to do this. Any help would be appreciated.

110. ## physics

hi, reading over momentum notes and i just want to clarify a few things. if i had a system containing a cart that was moving (cart 1) and then a cart that was stationary (cart2)would there be any net external force acting on the system between the initial

111. ## chemistry

the combining ratio by weight of copper and sulfur assignment

112. ## Chemistry

Does helium have a smaller volume than hydrogen?

113. ## math

Solve the system of equations x + 3y = 32 -3x + 2y = 3

114. ## Pre-Algebra

Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.

115. ## Pre-Algebra

Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.

116. ## Finance

Trying to figure out how to do problems like these. So confused! 1. The receivables turnover for 2009 is 10 times. 2. All sales are on account. 3. The profit margin for 2009 is 14.5%. 4. Return on assets is 22% for 2009. 5. The current ratio on December

117. ## organic chemistry

Could you use NaOH to separate acetylsalicylic acid (aspirin) and acetaminophen (Tylenol) by acid-base extraction?

118. ## media and the culture

Write a 500- to 550-word essay response for Part Two. Comprehensive writing skills must be used. Explain the effect of relationships among television, movies, and electronic games with culture. Include the following: • How culture is reflected in movies

119. ## Physics

A 11.5 m long conveyor belt, inclined at 30.0°, is used to transport bundles of newspapers from the mailroom up to the cargo bay to be loaded on to delivery trucks. Each newspaper has a mass of 1.0 kg, and there are 21 newspapers per bundle. Determine the

120. ## Critical Thinking

When the interests of politicians or big business moguls coincide with those of the masses which of the following is the consequence? coverage of events will be leaked coverage of events will be automatic coverage of events will be cancelled coverage of

121. ## COMM 100

Assertive speakers tell their listeners what they mean and what they expect. true or false, Assertive communication is said to be where you take in the other persons feelings and rights into consideration, however assertive makes me think of firm, so I

122. ## US history

Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

123. ## solid mensuration

in a circle with diameter of 12 inches, a regular five-pointed star is inscribed. what is the area of that part not covered by the star?

124. ## COMM 100

Your self-concept is not usually influenced by your communication with others or their feedback to you. true or false true?

125. ## algebra

2x +y+3z=-1,(a+3)x+2y+8z=2,3x+y(a+1)z=1 solve for a, by gauss-jordan elimination

126. ## Chemistry

I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told to look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

127. ## chemistry

A closed-tube manometer is filled with a nmineal oil whose density is 0.857 g/cm^3. What is the pressure in mm Hg if you measure a height of the mineal oil equal to 79.3 mm? The density of mercury is given as 13.586 g/cm^3.

128. ## Physics

The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

129. ## math

500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry

130. ## media and the american culture

You are the chief editor of a large metropolitan daily newspaper. One of your reporters is caught fabricating sources and making up facts. How do you handle the situation, from disciplining the reporter to explaining it to your readers?

asked by crying out for help!!!!
131. ## Physics

A square conducting loop with sides of length L is rotation at a constant angular speed of, w (omega), in a uniform magnetic field of magnitude B. At time t=0, the loop is oriented so that the direction normal to the loop is aligned with the magnetic

132. ## trig

Cos(-11/12) use the sum or difference formula to find the exact number

133. ## Related rates-calculus

You are eating soup from a hemispherical bowl of radius 6cm at a constant rate of 40ml/min. Find the rate at which the soup level is going down in depth of the soup is 2cm.

134. ## Physics

A man 1.80 m tall walks at 2.00m/s perpendicular to a horizontal magnetic field of 5.0 T; that is, he walks between the pole faces of a very big magnet. Given that his body is full of conducting fluids, estimate the potential difference induced between his

135. ## History

In what ways can we honor our veterans? Can i please get a link?

136. ## Chemistry

1. When 20cm^3 of a gaseous Allene burns in an excess of oxygen, 60cm^3 of carbon dioxide are formed. Both volumes are measures at r.t.p. What is the formula of alkene? Is it C3H6 or C6H12 and why? 2. A student investigate the reaction of vegetable oil

137. ## Psychology

Hi Jiskha Instructors, I am having a real difficult time finding answers to my five questions. Is there someone who can help point me in the right direction to credible or reputable website sources? Or answer these five questions. I need a credible

138. ## US history

Which of the following is an American organization founded in the early 1920s to promote international peace? 1. Daughters of the American Revolution 2. American Committee for the Outlawry of War 3. Kellogg-Briand group 4. League of Nations 5. United

139. ## Math

can someone tell me what are the 5 strategies for overcoming communication barriers?

141. ## Physics

Suppose vectors a&b, if a cross b=c. Show that c is perpendicular to a&b.

142. ## precal

okay, so I'm trying to figure out how to do this 3x3 matrix. I'm suppose to be finding the determent and using CRAMER'S RULE. Can someone please explain to me how to do this? 4x-y+z= -5 2x+2y+3z=10 5x-2y+6z=1

143. ## economics

Q AC MC 1 4 12 2 8 20 3 12 28 4 16 36 5 20 44 6 24 52 7 28 60 8 32 68 9 36 76 suppose that there are 70 firms in operating in the industry. using the MC curve, find out how much output in total is delivered to the market at each price (you only need to

144. ## Spanish 1

Does this question -- Does he like sandwiches? -- translate to ¿A él le gustan los sándwiches?

145. ## Physics

How can i find the area of the triangle vertices (2,-3,1), (1,-1,2)&(-1,2,3)

146. ## Calculus- rates

A tanker is spilling oil into the water resulting in an oil slick that is close to circular. At te time that the slick's diameter is growing at a rate of 8 ft/sec, the diameter is 250 feet. At what rate is the area of the oil sick increasing?

147. ## English

I need to revise animal sounds. I wonder if there are children's short poems, songs or riddles I can use to memorize them. 1) What sound does the cat (all other animals) make? I made up a series of short sentences to help memorization. 2) When I arrived

148. ## Algebra/trig

How would i use my calculator to find the approximate value of the expression, cot 0.2748 rad

149. ## Calculus- rates

A man 6ft. tall walks at the rate of 5 ft/sec toward a streelight that is 16 ft. above the ground. At what rate is the length of his shadow changing when he is 10ft. from the base of the light?

150. ## physics

what is the temperature of a bunsen burner?

151. ## English

Thank you for your help. I think I made a mistake in my previous post (sentence 1). I added a few more examples I'm unsure of. 1) There is no point in (not of) worrying about his behaviour. He won't change it. It is no use/no good worrying about his

152. ## US history

The passage of the lend-lease bill in 1941 signaled what about American opinion? 1. Internationalist sentiment was weakening. 2. Pacifism was resurgent. 3. Americans paid little attention to the European war. 4. The president lost control over Congress. 5.

153. ## Physics

An airplane with an airspeed of 33.3 m/s is headed 30 degrees east of north in a wind blowing due west at 30 m/s. What is the ground speed of the plane?

154. ## chemistry

I need help with this question please help, I just don't understand it Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another Mr Pursley posted this response,

155. ## math

A tire swing is suspended from a tree. The swings height (in feet) above the ground is modeled by the equation, h = -12cos(x) + 15. (x is the angle measured in degrees). What is the height of the swing, when the angle is 60 degrees?

156. ## math

4. Solve the system of equations x + y = 6 x - y = -9

157. ## US history

At the Battle of the Bulge: 1. Germany’s victory once again threatened an overall Allied defeat 2. the British repelled the German invasion force seeking to conquer Britain 3. German forces pushed the Allied amphibious invasion back into the English

158. ## chemistry

FeSO4 (aq) + Ba(OH)2 (aq) = BaSO4 (s) + Fe(OH)2 (s) 2Fe3+(aq) + 3SO4=(aq) + 3Ba2+(aq) + 6OH-(aq) ===> 2Fe(OH)3(s) + 3BaSO4(s) which one respresents the precipate when iron (III) sulphate aq and barium hydroxide aq are combined.

159. ## statistics

The heights in inches of 14 randomly selected adult males in LA are listed as: 71, 67, 70, 59, 71, 68, 67, 71, 80, 68, 74, 69, 72, 68. 1. Display the data in a stem-and-leaf plot. 2. Find the mean. 3. Find the median. 4. Find the mode. 5. Find the range.

160. ## Chemistry

which contains the lowest % of hydrogen? HCl H3PO4 H2SO4 H20 is it HCL?

161. ## statistics

Why should we check if your data is binomial?

162. ## algebra

If the pattern below follows the rule "add 6 to the previous number and then multiply the result by 3" what is the third number in the pattern, based on the initial number 1? 1, __, Δ, .....

163. ## science

what properties would you predict for darmstadtium?

164. ## STATISTICS

Pure Plastics Inc. manufacture molded plastic pieces. A sample of their raw material inventory is shown in the table below: Item Average Inventory (units) Value (\$/unit) 128 400 3.75 234 300 4.00 233 120 2.50 236 75 1.50 239 60 1.75 240 30 2.00 678 20 1.15

165. ## Chemistry

The combustion of 0.1583 g benzoic acid increases the temperature of a bomb calorimeter by 2.93°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) A 0.1710 g sample of vanillin (C8H8O3)

166. ## MACROECONOMICS

Suppose that there are 10 million workers in Canada and South Korea and each worker in Canada and South Korea can produce 4 cars per year. A Canadian worker can produce 10 tonnes of grain a year, whereas a South Korean worker can produce 5 tonnes of grain

167. ## Geometry

Steph has a line drawn on her paper with the equation y = 4x - 3. She wants to draw a line parallel to the given line, but through the point (2, 2). Describe, in words, the steps she needs to go through to find the equation of this new line.

168. ## math (algebra)

decide whether the pair of lines is parrallel, perpendicular, or neither. 3x+4y+1 and 4x+3y=2

169. ## Human Physiology

Bill damaged the spinothalamic tract on the right side of his spinal cord at the thoracic level. What would be impaired? 1) touch sensation of the right leg 2) touch sensation of the left leg 3) temperature sensation of the right leg 4) pain sensation of

170. ## math

explain how to use addends of a sum 17

171. ## math

David takes 300 milligrams of medicine every day. Find this rate in grams per day

172. ## algebra

Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds? I got that=5 pi BUT What speed is it moving in miles/hr???? algebra - PsyDAG, Sunday, November 13, 2011 at 1:38am Assuming it does move 5 pi, convert 5 *

173. ## Humanities

What is the influence of the Dominican Order during the past and the present?

174. ## Humanities

What is the influence of the Dominican Order during the past and the present?

175. ## English

I urgently need you to check this rephrase.I added another sentence. "The ice did split with a thunder-fit; The helmsman steered us through." 1) The ice split as (?) the sound of the thunder and the helmsman steered them through. 2) The white Moon

176. ## algebra

There is one rectangle in Figure 1 There are 3 rectangles in Figure 2 (two small and the one made of two) There are 6 rectangles in Figure 3 (three small, two made of two and one made of three) What figure number corresponds to 28 small congruent

177. ## Reserach

The average commute time via train from the Chicago O'Hare Airport to downtown is 60 minutes with a s=15 minutes. Assume that the commute times are normally distributed. what proportion of commutes would be: Between 45 and 75 minutes?

178. ## Mat

What is mean median and mode

179. ## ---college algebra (average rate of change)---

If the average rate of change of g(x) from x = 1 to x = 9 is 20, and if the average rate of change of g(x) from x = 9 to x = 21 is 40, then what is the average rate of change of g(x) from x = 1 to x = 21?

180. ## statistics

Given a normal distribution of scores with a mean of 100 and a SD of 10, compute z scores for the following raw valves: 95, 115, 80, 130.

181. ## biology

Please help to write a assignment on the topic Biotechnological applications in agriculture and medicine .how to write it?

182. ## Math

differentiate 1-cosx/1+cosx

183. ## algebra

Describe and correct error [-13]-  = -13 - 13 = -26 thanks

184. ## English

Could you please revise these sentences. I have two doubts concerning my previous post. 1) When I arrived at/on the farm (which preposition is best??) 2) A rabbit was thumping (its paw??) in the rabbit hutch 3) The theme of reversal of values is best

185. ## edu 310

Power Point Presentation: The Professional Standards Movement i) How has the content and professional standards movement in K-12 changed the way educators teach students in America?

186. ## Accounting/Finance

A for-profit hospital, has a high degree of business risk the preferred method of financing growth would be ? a. Short-term debt b. By increasing leverage c. Bonds d. Equity e. Long-term debt

187. ## Algebra

You borrow \$40 from your sister. To repay the loan, you pay her \$5 a week. Write a linear equation to model the situation and check with unit alalysis.

188. ## Math (algerbra)

How do i find the Gcf with veriables. For example. 15b^3c^2, 75ab^2c^3 (^ = exponent)

189. ## algebra

Jeff made some designs using equilateral triangles, as shown bellow. He noticed that as he added new triangles, there was a relationship between the number of triangles, and the outer perimeter of the design. If the pattern is continued, what would be the

Suppose local govt decides that a tax is the best way to address the inefficiency created by outdoor concerts. Assuming the social cost curve and the private cost curve are parallel to each other, how much does the tax on concerts have to be to achieve the

192. ## algebra

the length of a rectangle is 25cm twice its width the perimeter of the table must be less than 335 cm.find the maximum dimensions of the table if each dimension is an interger

193. ## science - biology

What is the health advantage that can result in sickle cell hemoglobin?

194. ## Math

A car is traveling south at a speed of 68 mi/h from Dallas toward San Antonio. Dallas is about 272 miles north of San Antonio. A truck is traveling north from San Antonio to Dallas at a speed of 71 mi/h. When and where will they pass each other? 1. Create

196. ## math

Let R be a commutative ring in with a^2=a for every element a. Show that a+a=0 for all a in R

197. ## math

Solve graphically y = 2x - 6 and y = -2x + 10

198. ## math questions

is there a site i could use to help me with compund inequalities?

199. ## Trig

I have these sum and product property problems and I just want to make sure my work is right. Write equations expressing 1. cos 37degrees cos99degrees as a sum Answer: sin136+(-62) 2. sin4+sin7 as a product Answer: 2sin5.5 sin-1.5 3. cos 8x - cos 2x as a

200. ## maths

This is actually maths homework but the question sounds like geography: 1)Why do you think the UK is so high up in the list for mortality rates due to drug-related diseases. What do you think we can do to lower drug-related deaths in the UK? 2)Why do you

201. ## math

Multiply ã7(ã10-ã6)

202. ## physics

a small block of mass M=0.050 kg is released from rest at the top (h=0.60 m) of the curved frictionless ramp shown above. The block slides down the ramp and collides with a larger block of mass 1.5M=0.075 kg at rest at the bottom of the incline. The larger

203. ## Word

what does implementing means ? at my school website it says our school is implementing several new techniques for behavior management in the 2009-2010 school years

204. ## English

Are there any tutors on here that are familiar with The Canterbury Tales?

205. ## physics

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

206. ## algebra

Please I do not know how to figure this out: Identify the degree of each term of the polynormial and the degree of the polynormial of -4x^3 + 2x^2 + 7x + 1 degree of the first term, second, third, fourth terms and the polynomial

207. ## physics

Assume the driver has a mass of 70.6 kg . What horizontal force does the seat exert on the driver? Answer in units of N

208. ## Math

One of the "think outside the box" problems in my math work is really challenging me. I need to write and equation expressing: 8 cos theta + 15 sin theta as a single sinusoid I tried graphing to no avail and there is nothing in my textbook about turning an

209. ## science

I want to do a science fair project on which skin moisturizer works best. How can I find some ideas on ways to test this? Thank you!

210. ## calculus

Your task is to design a rectangular industrial warehouse consisting of three separate spaces of equal size.? The wall materials cost \$58 per linear foot and your company has allocated \$27840 for those walls. 1) The dimensions which use all of the budget

211. ## chemistry

How many liters of base will neutralize 1 liter of acid?

212. ## US history HELP

Which of the following statements about the Social Security Act is NOT true? 1. It was based on a progressive tax that took a larger percentage of higher incomes. 2. It provided old-age pensions. 3. It was, according to Roosevelt, the “supreme

213. ## US history HELP

Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

Is their anything else I can add to my conclusion. Please check my artist statement. I know I show it to you but i did some changes again and i would like for you guys to check it. writing statemrnt: The reason why my essay "Vive la difference!" relates to

Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, A = {10, 12, 14, 16}, B = {13, 17}, and C = {10, 13, 16, 17, 18}. List all the members of each of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the

216. ## physics

A planet orbits its star in a circular orbit (uniform circular motion) of radius 1.62x10^11 m. The orbital period of the planet around its star is 37.0 years. Determine the following quantities for this orbital motion: Angular acceleration , Tangential

217. ## math

During a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for \$85.50. Later you buy three more sweatshirts and four more pairs of sweatpants for \$123.00 What is the sale price of each sweatshirt and each pair of

218. ## Physics

A 2010 kg car traveling to the west at 18.5 m/s slows down uniformly under a force of 8880 N to the east. a) How much force would be required to cause the same acceleration on a car of mass 3120 kg? How far would the car move before stop- ping? Answer in

219. ## US history HELP

The Farm Security Administration: 1. provided federal subsidies for the expansion of large farms 2. concentrated on rehabilitating devastated soils on the Great Plains 3. offered loans to marginal farmers (so they could avoid falling into tenancy) and to

220. ## Calculus

find the derivative of: (x^2+y^2)^2=x^2-y^2

221. ## Chemistry

A sample of Argon gas at standard pressure occupies 1000 mL. At constant temperature, what volume does the gas occupy if the pressure increases to 800 mm Hg?

222. ## math

SOLVE THE EQUATION BY USING EQUIVALENT FRACTIONS? 1. 12/21=X/7, What's X= 2. 12/16=6/Z, What's Z= 3. 4/14=20/Y, What's Y= 4. 16/14=8/Z, what's Z= PLEASE HELP ME!!!!!!!!!

223. ## geometry

What size would your 5ft X 7ft bed be on a blueprint with a scale of 1 block = 5" x 5"?

224. ## US history HELP

The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war in Asia. 3. They shocked Germany into surrendering before

225. ## English Quick ?

Is my grammar correct in this sentence and should it be effect or affect? Thank you A year later, and I still haven't completely figured out how to deal with what I'm going through and not let it affect how I go about everything else.

226. ## Calculus

find the derivative of: (x^2+y^2)^2=x^2-y^2

227. ## US history HELP

From late 1941 into early 1942, World War II in the Pacific experienced: 1.(i am not sure) a string of American victories that put Japan on the defensive 2.(wrong) the Japanese invasion and capture of Australia 3.(wrong) the Japanese on the Philippines

228. ## math

This is actually maths homework but the question sounds like geography: 1)Why do you think the UK is so high up in the list for mortality rates due to drug-related diseases. What do you think we can do to lower drug-related deaths in the UK? 2)Why do you

229. ## chemistry

H2 + I2 2 HI. Looking for Keq: Complete the equation. Assume all concentrations are equilibrium constants in mol/L , M Temp in Celcius = 25 [H2] = .355 [I] = .388 [HI] = .0922 K eq = ??

230. ## Math

an estate was divided Among three heirs. After Andrea received 20% of the estate, her mother received 50% of what remained, leaving \$20,000 for Andreas uncle. what was the total value of the estate?

231. ## calculus

a rectangular box with a square bottom is to have a volume of 1000 cubic inches. the bottom cost \$100 per cubic inch, the sides are \$25 per square inch and there is no top. what are the dimensions of the box that has materials costing the least

solve. -0.8

233. ## Black Achievement Award

How to get a Black Achievement Award in the 7th Grade?

234. ## Math

Find the number c that satisfies the conclusion of the Mean Value Theorem: x^3+x-9 [0,2]

235. ## Global

How and why did Russia emerge as a great power? Discuss the character of Peter the Great. How were his reforms related to his military ambitions? What were his methods of reform? To what extent did he succeed? What were Russia’s domestic problems before

236. ## Math

What is the volume of a sphere with a radius of 7 cm? Use 22/7 as pi.

237. ## Health

Does Sickle Cell Disease involve a single gene or entire chromosome?

238. ## College Calculus

A 13-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away at a rate of 2 feet per second, how fast is the area of the triangle formed by the wall, the ground, and the ladder changing when the bottom is 12 feet

239. ## ESL

what is English Second Language?

240. ## calculus

Maximize p = 2x + 2y subject to 4x + 8y 24 8x + 4y 32 x 0 , y 0 (Round all answers to the nearest 0.1.) p = Incorrect: Your answer is incorrect. x = Incorrect: Your answer is incorrect. y = Incorrect: Your answer is incorrect.

241. ## Chemistry

Consider the following data: * NH3(g) yields 1/2 N2(g) + 3/2 H2(g) delta H = 46kJ * 2 H2(g) + O2(g) yields 2 H2o(g) delta H = -484 kJ Calculate delta H for the reaction: 2 N2(g) + 6 H2O (g) yields 3 O2(g) + 4 NH3(g)

242. ## psychology

A newspaper advice columnist suggests that thinking can be voluntarily controlled and changed but that emotions are gut-level, biological reactions that can't be voluntarily controlled or modified. Use your knowledge of emotion research and theory to

243. ## Chemistry (Follow up post - Dr.BOB22)

Ionization is when an electron is removed from an atom and ionization energy is the energy required to do this. "Electrons stream from the negative electrode to the positive electrode. In the process of moving from one electrode to the other they knock

244. ## Physics

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the

245. ## Veterans Help!!!

what are the reasons to help a veteran?

246. ## math is this right (18)

amy paid \$62.05 for a pair of running shoes during a 40% off sale. what is the regular price. i got \$74.46? is that correct?

247. ## Physics

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4Hz. Find the ratio m2/m1 of the

248. ## Algebr

Each week you must do a minimum of 18 hours of homework. Participation in sports requires at least 12 hours per week. You have no more than 35 hours per week in total to devote to these activities. - Write a system of inequalities to model the situations.

249. ## 7th Grade English Essay - Diversity Means

Ms. Sue or any other teacher Im done with my essay. I hope you guys like it. .... = school name im not aloud to tell someone that I not know of my school online only if someone I know enjoy !!!:) Here it is Diversity means the condition of being different.

250. ## US history

Who was the economist whose ideas provided a theoretical justification of the New Deal? 1. Henry Morgenthau 2. Harold Ickes 3. Milton Friedman 4. Arthur Laffer 5. John Maynard Keynes Out of all of them the only economists are Jogn Maynard Keynes and Arthur

251. ## Math

Tyler buys a stereo system for \$1200, and pays for it using a credit card. This particular card charges 1.5 percent monthly interest on the unpaid balance, and requires a minimum payment of \$20 each month. Suppose that Tyler pays only the minimum amount

252. ## Finance

Suppose you just inherited a gold mine. This gold mine is believed to have three years worth of gold deposit. Here is how much income this gold mine is projected to bring you each year for the next three years: Year 1: \$49,000,000 Year 2: \$61,000,000 Year

253. ## History

What does it mean to be a true idealist? In my book it said Roosevelt considered himself to be a true idealist, not President Wilson.

254. ## Math

Lalph Rauren was famous for discovering potential models as he walked the streets of New York. One day he spotted four girls who later became top models: Amy, Mary, Kay, and Beth. One was discovered walking through an apartment building, one in a coffee

255. ## Chemistry

Calculate the pH at the equivalence point for the titration of 0.120 M methylamine with 0.120 M HCl (kb of methyalamine is 5.0 x 10^-4)

256. ## History

What is the difference between personal debt and social debt? What do each of them mean?

257. ## Physics

The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

258. ## US history HELP

The use of atomic bombs against Japan had what significance? 1. They rendered the entire island of Honshu inhabitable for twenty-three years. 2. They prevented the Soviets from entering the war in Asia. 3. They shocked Germany into surrendering before

259. ## algebra

1/4-2/3y=3/4-1/3y

I have a question it the reflection rules for literture they said for presentation i have to have 1 orgainal and 2 copies are to be submitted. Does that means a) I have to print out my real essay and make 2 more copies b) print out my real copy and make 2

261. ## statistics

e Chebyshev’s theorem to find what percent of the values will fall between 226 and 340 for a data set with a mean of 283 and standard deviation of 19.

262. ## statistics

based on a random sample of 640 college students, the mean amount of sleep college students. construct a 95% confidence interval for the mean amount of sleep per night for college studenrs.

263. ## physics

A body is suspended vertically from an ideal spring of spring constant 3.4 N/m. The spring is initially in its relaxed position. The body is then released and oscillates about its equilibrium position. The motion is described by the following equation.

264. ## calculus

Find the angle that maximizes the area of the isosceles triangle whose legs have length l=31 angle=

265. ## math

a. Suppose a market research company finds that at a price of p = \$40, they would sell x = 27 tiles each month. If they lower the price to p = \$15, then more people would purchase the tile, and they can expect to sell x = 47 tiles in a month’s time. Find

266. ## Calculus

Let f(x)=3x^5+5x^3+15x+15. Use Rolle's Theorem to show that f(x) has exactly one root.

267. ## English

My task is to write a persuasive article for my chool website about an issue related to school meals. My title is 'Unhealthy heaven' My sub-heading is 'Those hungry humans crave for tasty foods. What will it be?' My introduction's main point is that '

268. ## hISTORY PLEZ HELP!

In what ways can we honor our veterans? Explain please but no links please, they are hard to understand.

269. ## Chemistry

1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What ions are left in solution after the reaction is complete?

270. ## English

I am trying to look for 20 lines of blank verse in shakespeare's play Measure for Measure. I found this: we CANnot WEIGH our BROther WITH ourSELF. great MEN may JEST with SAINTS; tis WIT in THEM. (2.2.16) Did anyone find a bigger chunk of blank verse?

271. ## chemistry

how many moles of Na2SO4 are present in 850cm3 of a solution which has a concentration of .6 mol d/m3

272. ## English- Due @ 8

Please chech for any errors and let me know if I need to change please correct it for me. Obesity is one of the major causes of health problems in the United States. According to Charles Schmidt, obesity is starting to catch up with smoking, which is

273. ## Math

Four friends contribute sums of money to a charitable organization in Haiti in the ratio of 2:3:5:8. If the largest amount comtributed is \$18,500, calculate the total amount contributed by the four people.

274. ## Math

I have a 4x4 grid of dots. How do I draw a straight line so I have 8 dots on each side of the line?

275. ## Calculus

Find the point on the line 2x+7y-6=0 which is closest to the point (-5,5.

276. ## businees

I have prepared my assignment but i am not sure if i am correct or not in punctuations,capitalization, sentences that i have framed and also if i have included everything in my prepared paragraph that is required for this assignment. please suggest me any

277. ## english

What kinds of things do parents teach their children in the animal kingdom are similar to the things our parents teach us?

278. ## geometry

how do you construct a reflection, rotation, and a translation of a triangle?

279. ## Geometry

If 3 us an element of A and 3 is not an element of B, then which of the following is NOT true 3 is an element of B complement 3 is an element of A union B 3 is an element of A intersect B

280. ## science

1) How do hormones from the thyroid gland and parathyoid gland work together?

281. ## chemistry

What is the function of each of the following reagents in this experiment: phosphoric acid; anhydrous sodium sulfate; sodium carbonate solution, and saturated sodium chloride solution

282. ## scienceee

what could be the result if a persons thymus gland was not functioning properly?

283. ## Science/Physics

An astronaut is about 20 m from her space station when the rocket thrusters run out of fuel. If she is carrying a few tools and can remove the rocket thruster, what should she do to get back to the space station? Explain reasoning.

284. ## CHEMISTRY

I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told you look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

285. ## calculus

A person drops a stone from a bridge. How high is the bridge if they hear the splash 4 seconds later. Assume the speed of sound is 1080ft/sec.

286. ## social studies

explain whether you think it is better for the country to have a policy of isolationism or one of imperialism. help meee its a study question for tommorrows test i need to know the answer!

287. ## CHEMISTRY

I have an assignment to 'Research ionization energy levels and come up with 3 real world applications' and was told you look up lasers, plasma arcs and neon lights. Hours later, (lol) I'm still having a little trouble. Is there any way someone can explain

288. ## Physics

The current in a very long, tightly wound solenoid with radius a and n turns per munit length varies in time according to the equation i(t)=Ct^2, where the current i is in amps and the time t is in seconds, and C is constant with appropriate units.

289. ## English

1. What do you enjoy doing? 2. What do you like doing? 3. What do you like to do? 4. What do you enjoy? -I enjoy swimming. (Can all the sentences from #1 to #4 be the suitable questions for the answer?)

290. ## history

i need to know how cleopatra had an impact on the roman republic or the roman empire? thank you!

291. ## physics

A ball of mass xg is release from a height of 20m . Calculate the time taken to fall to the ground.

292. ## Physics

A helicopter hovers above the north magnetic field pole in a magnetic filed of magnitude 0.5G perpendicular to the ground. The helicopter rotors are 10m long, are made of aluminum, and rotate about the hub with a rotational speed of 10 000 rpm. What is the

293. ## Chemistry

a compound was analyzed and found to contain C,H,N,O, and Cl. When o.150g sample of this compound was burned, it produced 0.138 g of CO2 and 0.0566 g of H2O. All of the Nitrogen in another sample of mass 0.200 g was converted to 0.0238 g of NH3. Finally,

294. ## math

ana is 5 times as old as beth and 2 2/3 times as old as cathy. What fraction of cathy's age is Beth's?

295. ## physics

A ball of mass xg is release from a height of 20m . Calculate the time taken to fall to the ground.

296. ## question

is breast cancer a part of a disorder of the endocrine system?

297. ## Proofs Geometry

What is the statement and the reason for Given: and mEGF∠=60 mAGF∠=°90; Prove: mAGB∠=°30. Thank you!