# Questions Asked onNovember 22, 2011

1. ## pre-calc

A ferris wheel is 28 meters in diameter and makes one revolution every 10 minutes. For how many minutes of any revolution will your seat be above 21 meters?

2. ## Physics

A 25 kg child slides down a playground slide at a constant speed. The slide has a height of 3.0 m and is 7.0 m long. Using energy considerations, find the magnitude of the kinetic friction force acting on the child.

3. ## Physics

An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers, as illustrated below in Figure 18. The plane is traveling horizontally at 30m/s at a height of 200m above the ground. a. What horizontal distance does the

4. ## chemistry

write the equations for the substitution reaction of methene with bromine under the following conditions. a) reaction in the presence of sunlight CH4+Br2 sunlight=? b) reaction in the absence of sunlight CH4+Br2 =?

5. ## anatomy

In the body, lever systems involve the interaction of __1__, which provide the force, and __2__, which provide the lever arms. The force is exerted where __3__. The site at which movement occurs in each case is the intervening __4__, which acts as a

6. ## Calculus 1

If you have 280 meters of fencing and want to enclose a rectangular area up against a long, straight wall, what is the largest area you can enclose?

(1) Making rice pudding can be very easy. (2) First, get a large, heavy saucepan. In the pan, measure 3 cups of whole milk, 1 cup of water, 1/2 stick of margarine or butter, and 1/2 cup of rice. (3) Bring this mixture to a quick boil. (4) Lower heat and

8. ## Chemistry

Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute. If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 13.9 mL of

9. ## Physics

In the winter sport of curling, players give a 20 kg stone a push across a sheet of ice. A curler accelerates a stone to a speed of 3.0 m/s over a time of 2 s. a)How much force does the curler exert on the stone? b)What average power does the curler use to

10. ## Math

Reasonableness. Use the clues to solve the. Riddle. I am between 24and34. You say my name when you count by twos from zero. You say my name when you count by fives from zero. What number am I? 20 21 22 23 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

11. ## Mathematics

The difference between two numbers is 9 and the product of the numbers is 162. Find the two numbers. Explain your working

12. ## Math

6,11,16,21,....Algebraic expression______ 12th term- 30th term-

13. ## Physics

Two ships in a heavy fog are blowing their horns, both of which produce sound with a frequency of 165.0 Hz One ship is at rest; the other moves on a straight line that passes through the one at rest. If people on the stationary ship hear a beat frequency

14. ## physics

bill steps off a 3.0-m-high diving board and drops to the water below. At the same time Ted jumps upward with a speed of 4.2 m/s from a 1.0-m-high diving board. choosing the origin to be at the water's surface and upward to be the positive direction, write

15. ## Physics ASAP

Tarzan, mass 85kg swings down from a tree limb on the end of a 20m vine. his feet touch the ground 4.0m below the limb. A. how fast is Tarzan moving when he reaches the ground? B. Does your answer depend on Tarzan's mass? C. Does your answer depend on the

16. ## Algebra 1

In a bike race, a rider covers a 5 mi flat stretch of road at a speed of s mi/h. She then doubles her speed down a hill 1 mi long. Finally, she reduces her downhill speed bu 12 mi/h as she rides the last 3 mi of the race. What function gives the time t it

17. ## Physics

Write an expression for a transverse harmonic wave that has a wavelength of 2.8 m and propagates to the right with a speed of 14.2 m/s. The amplitude of the wave is 0.13 m, and its displacement at t=0 and x=0 is 0.13 m.

18. ## chemistry

write the equations for the addition reaction of ethene with bromine under the following conditions. a) reaction in the presence of sunlight H2C=CH2+Br2 sunlight=? b) reaction in the absence of sunlight H2C=CH2+Br2=?

19. ## chemistry

Balancing Redox Reaction in Basic Solution CN- + MnO-4 --> CNO- + MnO2 H2O + CN- --> CNO- + 2H +2e 3e + 4H + MnO4- --> MnO2 + 2H2O My confusion is with adding the OH- please explain

Find the centroid of the area bounded by the parabola y=4-x^2 and the x-axis A.(0,1.6) B.(0,1.7) C.(0,1.8) D.(0,1.9)

21. ## English (The Wife of Bath)

What do you think of the Wife of Bath's opinion about what women want most? If she were asked what men want most, how do you suppose she would respond?

22. ## physics

seagulls are often observed dropping clams and other shellfish from a height to the rock below, as a means of opening the shells. If a seagulls drops a shell from rest at a height of 14m, how fast is the shell moving when it hits the rock?

23. ## university of ghana

similarities between good governance and democracy

24. ## chemistry

Conjugate base of acid H3PO4= I have H2PO-4 Is this correct?

25. ## chemistry

how many half lives will it take for 50 g of 99Tc to decay to 6.25 g?

26. ## Pre-calculus

An airplane has an airspeed of 150 km/hr. It is to make a flight in a direction of 70 degrees while there is a 25 km/hr wind from 340 degrees. What will the airplane's actual heading be? Please Explain this Problem to me!!!!

27. ## algebra 1

A piece of lumber which is 55 inches long is cut into two parts such that 2 times the larger part will be 12 more than 5 times the smaller part. How long are each of the pieces of lumber?

28. ## geometry

Given l parallel to m, find the measures of each angle.

29. ## chemistry

draw a diagram showing the arrangement of the valency electrons in one molecule of the covalent compound selenium chloride. use x to represent an electron from an atom of selenium. use o to represent an electron from an atom of chlorine

30. ## physics

A book with 67 joules of gravitational potential energy fell from a shelf and landed on the flood. what was its kinetic energy when it landed on the floor?

31. ## physics

A thin uniform rod is rotating at an angular velocity of 6.7 rad/s about an axis that is perpendicular to the rod at its center. As the drawing indicates, the rod is hinged at two places, one-quarter of the length from each end. Without the aid of external

32. ## physics

the first active volcano observed outside the earth was discovered in 1979 on Io, one of the moons of jupiter. the volcano was observed to be ejecting material to a height of about 2.00x10^5m. given that the acceleration of gravity on Io is 1.80 m/s^2,

33. ## Physics

A solid cylindrical disk has a radius of 0.18 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular

34. ## college math

a license plate is to consist of three digits followed by two uppercase letters. determine the number of different license plates possible. the first digit cannot be zero and repition is not permitted.

35. ## Physics

A daredevil decides to jump a canyon of width 10 m. To do so, he drives a motorcycle up an incline sloped at an angle of 15 degrees. What minimum speed must he have in order to clear the canyon?

36. ## Psychology

Is my answer correct I said the correct answer is D Regarding cultural differences in self-esteem, which of the following statements is/are TRUE? a. People from Eastern cultures are more likely to engage in self-criticism. b. The self-esteem for people

37. ## university

A surfer is catching a wave. Suppose she starts at the top of a wave with a speed of 1.37 m/s and moves down the wave until her speed increases to 9.90 m/s. The drop in her vertical height is 2.64 m. If her mass is 63.3 kg, how much work is done by the

38. ## Chemistry

how many moles of o2 are needed to produce 3.91 mol fe2o3

39. ## Math

An alligator’s tail length, T, varies directly at its body length, B. An alligator with a body length of 3.2 feet has a tail length of 2 feet. What is the tail length of an alligator whose body length is 4.8 feet?

40. ## physics

Water is leaving a hose at 6.8 m/s. If the target is 2 m away horizontally, What angle should the water have initially?

41. ## physics

A block of mass m sliding on a frictionless table is attached to a string that passes through a narrow hole through the center of the table. The block is sliding with speed v0 in a circle of radius r0. (Use any variable or symbol stated above as

42. ## physics

A car is safely negotiating an unbanked circular turn at a speed of 17.2 m/s. The maximum static frictional force acts on the tires. Suddenly a wet patch in the road reduces the maximum static frictional force by a factor of three. If the car is to

43. ## physics

A parallel plate capacitor has square plates of side L= 12 cm and a distance d= 2 cm between the plates. Half of the capacitor areae is filled with a dielectric with k1 = 35. the other half is filled with a different dielectric with k2 = 8. The effective(

44. ## Psychology

Is this the correct answer I said C is the correct answer Jasmine is a college student, who is self-conscious and anxious in social situations and who tends to be a bit too trusting and tender-hearted when it comes to loaning money and clothing to her

45. ## physics

A 2.0 nF parallel plate capacitor with a sheet of mylar (k= 3.1) filling the space between the plates is charged to a potential difference of 90 V and is them disconnected. How much work would be required to completely remove the sheet of mylar from the

46. ## Physics

Assume that the earth is a uniform sphere and that its path around the sun is circular. a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is

47. ## Physics

During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.11 km/s at an initial inclination of 39.4◦ to the horizontal. The acceleration of gravity is 9.8 m/s2 . How far away did the

48. ## SCIENCE

the brachialis is a short stout muscle inserting cloes to the fulcrum of the elbow joint' the brachioradialis is a slender muscle inserting distally, well way from the fulcrum of the elbow joint. Which is a mechanical advantage and which is a disadvantage

49. ## Physics

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 512 Hz and has a speed of 28.0 m/s. The motorcycle has a speed of 13.0 m/s. What frequency does the motorcyclist hear?

50. ## Physics

During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.11 km/s at an initial inclination of 39.4◦ to the horizontal. The acceleration of gravity is 9.8 m/s2 . How far away did the

51. ## microsoft office aplication-computers

what is an advantage of inputting text on a slide via a text in powerpointx a )any font can be selected within a text box b)text within a text box can be formatted by color or style c)you can position the text anywhere on the slide by dragging the text box

52. ## jfk high school

if one side of a regular octagon is represented by 2x-1, the perimeter of the octagon can be represented by what?

53. ## Physics

The drawing shows a model for the motion of the human forearm in throwing a dart. Because of the force applied by the triceps muscle, the forearm can rotate about an axis at the elbow joint. Assume that the forearm has the dimensions shown in the drawing

54. ## Algebra II

If y varies directly as the square root of w and inversely as the cube of x, by what factor will y change if w is tripled and x is halved?

55. ## physics

1)A fire hose held near the ground shoots water at a speed of6.5 mps At what angle should the nozzle point in order that the water land 2.5 meters away? Answers: 18 degrees and 72 degrees 2) A long jumper leaves the ground at 45 degrees above the

56. ## medical Coding

Can someone tell me if I coded this right. This 23-year-old female is brought to the emergency department after being found by her college roommate. Sometime within the last hour and a half after the roommate left, the patient ingested her entire bottle of

57. ## Statistics

4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

58. ## chemistry

Acid dissociation constant for HNO3+H2O-H3O+ +NO3= I have [H3O+][NO1-3]/[HNO3] Do I have this right?

59. ## busi/stats

The Quality Assurance Department selected a sample of 12 printed circuit boards and tested them. The number of defects in each circuit board was 3, 3, 0, 5, 1, 1, 5, 6, 6, 2, 0, and 1. What kind of control chart should be constructed to monitor the

60. ## chemistry

summarize the solubilty behavior of hydrocarbons in water (a polar solvent) and in non polar organic solvents

61. ## Physics

A pair of in-phase stereo speakers is placed side by side, 0.85 m apart. You stand directly in front of one of the speakers, 1.2 m from the speaker. What is the lowest frequency that will produce constructive interference at your location?

62. ## math

Emily surmises that the probability that she will pass math or chemistry is .95, the probability of her passing math is .7, and the probability of passing both is .55. Find her estimate of the probability of passing chemistry?

63. ## Math

Solve the logarithmic equation for x. Log3(x^2 − 5x − 9) = 3 I Have no idea

64. ## Algebra II

The maximum safe load of a rectangle beam varies jointly as its width and the square of its depth and inversely as the length of the beam. If a beam 8.00 in. wide, 11.5 in. Deep, and 16.0 ft long can safely support 15.000 lb, find the safe load for a beam

65. ## physics

Legend has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

66. ## math

If (x+2)/2=y/5, then which of the following must be true? x/2=(y-2)/5 x/2=(y-5)/5 (x+2)/5=y/25

67. ## Statistics

4) The table below shows the study times and test scores for a number of students. Study Time (minutes) (x) 9 16 21 26 33 Test Score (y) 59 61 64 65 73 a)What line best relates study time to the test score? b)Calculate r and r^2. c)Determine whether r is

68. ## Physics

a projectile has an initial velocity of 15.0 m/s at an angle of 30 degrees above the horizontal. What is the location of the projectile 2.0 seconds later?

69. ## physics

total internal reflection between two materials is seen to occur if a critical angle of 60 degrees is exceeded. if the index of refraction of the material that the light is entering is 1.98,find the inndex of refraction of the material in which the light

70. ## math

All of the following are equilavent to 3:8 = x:32 except 8:3=32:x 3:8=8:32 x:8=3:32 8:32=3:x

71. ## physics

A ball, of mass 0.13Kg, is held on the inside of a smooth hemispherical bowl at a height 0.25 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

72. ## Math

The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

73. ## calculus

Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)

74. ## science

hydrogen and oxygen combine in the ratio of 1:8 by mass to form water.what mass of oxygen gas would be required to react completely with 3grams of hydrogen gas?

75. ## physics

A hot air balloon is traveling vertically upward at a constant speed of 3.9 m/s. When it is 10 m above the ground, a package is released from the balloon. After it is released, for how long is the package in the air? The acceleration of gravity is 9.8 m/s

76. ## Calculus still confused

Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)

77. ## calculus, math

Use Newton's method to approximate the value of (543)^(1/5) as follows: Let x1=2 be the initial approximation. find x2 and x3 =? approximation

78. ## Physics

A fleck moving horizontally to the right at 2.5 m/s begins to accelerate downward at 0.75 m/s2 . Where is the fleck 4.0 s later?

79. ## Algebra II

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

80. ## Math

If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

81. ## Finance

1) A potato chip manufacturer has been accused of shortchanging their customers with their 10-ounce bags of potato chips. A sample of 50 of that company’s 10-ounce bags was taken, and it was found that the average weight was 9.8 ounces with a standard

82. ## chemistry

Question: how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? Could someone give me the setup for

83. ## physics

Legned has it that Isacc Newton was hit on the head by a falling apple, thus triggering his thoughts on gravity. Assuming the story is to be true, estimate the speed of the apple when it struck Newton.

84. ## Math

If both masses are increased by 60% and the distance between them is halved, by what percent will the force of attraction increase?

85. ## statistics

The following data on the number of iron workers in the United States for the years 1978 through 2008 are provided by the U.S. Bureau of Labor Statistics. Using regression techniques discussed in this section, analyze the data for trend. Develop a scatter

86. ## physics

a car starts from rest and accelerates at in a straight line at a constant rate of 4.5m/s/s. How far will the car travel in 35 seconds.

87. ## physics

An object of mass 10 kg is pulled along a horizontal floor of a distance 3 m. The friction force between the object and the floor is 50 N. What is the minimum work done by the pulling force?

88. ## Algebra II

The maximum safe load of a rectangle beam varies jointly as its width and the square of its depth and inversely as the length of the beam. If a beam 8.00 in. wide, 11.5 in. Deep, and 16.0 ft long can safely support 15.000 lb, find the safe load for a beam

89. ## socials

Invasion of Italy were allies the U.S, Britain the Soviet Union? how Canada involved in this? they team up with Britain? i thought Canada be independence on own and no fight no more but they fight for what? They overtake Sicily. this place in europe? then

90. ## Economics

Suppose the production function is Y = 100(K3/10)(EN)7/10 and capital lasts an average of fifteen years. The rate of population growth is 0.5%. The rate of technological progress is 2.5%. The saving rate is 5%. A. Derive the equation for output per

91. ## Algebra II

If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

92. ## Math

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

93. ## Physics

A ball, of mass 0.3Kg, is held on the inside of a smooth hemispherical bowl at a height 0.15 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

94. ## Algebra

a colection of stamps consist of 2 cent stamps, 8 cent stamps, and 14 cent stamps. The number of 2 cent stamps is five more then twice the number of 8 cent stamps.the number of 14 cent stamps is three times the number of 8 cent stamps. The total value of

95. ## Statistics

A battery manufacturer is positive that its AA batteries last for 1,000 hours. However, you’re working for Consumer Reports and you don’t agree with what they say about their product. So, you buy 400 batteries and you test them out. Your findings are

96. ## statistics

Using our data set from Unit 1, compose a 3-page e-mail to the head of the American Intellectual Union, which includes the following: 1.Begin your e-mail to AIU by first providing an overview of the database, that is, a story about the characteristics that

97. ## home economics

What is the maximum amount it would be worth to shareholders to elicit high CEO effort all the time rather low CEO effort all the time?

98. ## math

I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?

99. ## chemistry

mix 10ml NaBr 3.i000M wth 10ml water & 10ml AgNo3 3.3.1000M KspAgBr=5.25.1000 .what is the situation at equilibrium

100. ## Algebra II

The kinetic energy of a moving body is directly proportional to its mass and the square of its speed. If the mass of a bullet is halved, by what factor must its speed be increased to have the same kinetic energy as before?

101. ## astronomy

Using the densities below, find what percentage of the Earth's mass is contained in its core. If Earth's core were adjusted in radius so that the core contained forty percent of the mass, by what factor would the radius of the Earth change compared with

102. ## Math

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

103. ## Physics

A ball, of mass 0.15 Kg, is held on the inside of a smooth hemispherical bowl at a height 0.16 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

104. ## MATH

A bag contains 2 red marbles, 4 blue marbles, and 8 green marbles. What is the probability of choosing a blue marble?

105. ## economics

1. What is the maximum amount it would be worth to shareholders to elicit high CEO effort all the time rather low CEO effort all the time?

106. ## Algebra II

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

107. ## chemistry

Acid, base, or salt? I have H2SO4= Acid, KOH= Salt, MgCl2= Salt, and NH3= Base Are these correct?

108. ## chemistry

How many molecules are in 3.78 moles of carbon dioxide?

109. ## chemistry

how to solve for a 28.4 L sample of methane gas is heated from 35.0° C to 76.0° C. The initial pressure of the gas is 1.00 atm at 35.0° C. Assuming constant volume, what is the final pressure of the gas? OK, I did the following: P₁ = 28.4 L P₂ = ?

110. ## physics

A 6.0 kg mass moves along an inclined plane that makes an angle of 36 degrees with the horizontal. The mass is connected by a cable to a second mass of 10.0 kg, which is suspended over a frictionless, massless, pulley and is free to move. The second mass

111. ## economics

Suppose you decide to elicit high CEO effort when and if good luck occurs by paying the bonus for \$1 billion outcomes only. What criticism can you see with this incentive contract plan?

Your team is a group of leading US business consultants and you have been tasked with proposing an M-Commerce application to a well-regarded regional pharmacy chain consisting of 200 stores. The pharmacy chain wants to better connect with their customers

113. ## math/Right triangle trig

Your favorite team is attempting a field goal. The ball is kicked at an angle of 45 degrees with the field. The ball covers a horizontal distance of 85 inches before the kick is blocked. What is the minimum height the opposing team's player can be to block

114. ## statistics

Some test use a median of 50 and a standard deviation of 10. What proportion of the population will be between the standard score of 90 and 110?

115. ## english

Please help me with the correct grammar, punctuation, and capitalization on the following paragraph. You will not notice any appreciable change in the pain level for about a week; however, you should be able to anticipate some relief during the second week

116. ## Math

If 750 m of 3.00-mm-diameter wire has a resistance of 27.6, what length of similar wire 5.00 mm in diameter will have the same resistance?

117. ## statistics

2)A political candidate is positive that she will get 60% of the vote in an upcoming election. A sample of 100 people is taken, and 52 say that they will they will vote for her. Using a 5% significance level, is the politician right in her claim?

118. ## Math

A chemist has two ethylene glycol and water solutions: one that contains 11.98% ethylene glycol and another with 7.30% ethylene glycol. How many litres of each must be mixed to make 7.50 x 102 L containing 10.50% ethylene glycol?

119. ## chemistry

what gas is produced in the reaction between calcium carbide and water?write the balanced equation for the reaction.

120. ## Algebra

"Did you hear about..." Its 12 words btw

121. ## Astronomy

If we assume the Sun is made totally out of hydrogen, how many hydrogen atoms are contained with the Sun? If the Sun converts half of these hydrogen atoms into helium over its lifetime of about ten billion years, how many hydrogen atoms are converted per

122. ## accounting

Given the case assignment, do items 1 – 4 1. Draw a partial REA diagram of the XYZ Company’s revenue cycle to model there events: taking customer orders, deliveries, and the use of vehicles. Be sure to include cardinalities 2. Create a set of tables

123. ## physics

many vacuum flasks have steel walls instead of glass. how would this effect how gfast some hot coffee cools

124. ## Algebra II

The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

125. ## college math

solve the equation 1). (x+4)(x-12)=5x 2). 4x^2+2x-14=16-17x

126. ## law

I have a mediation question. 14. If How would a mediator know whether information provided by one of the parties may be shared with the other party? How should he handle this? 16. What effect, if any, would an ongoing financial business relationship

127. ## math

In a right angle triangle, two acute angles are in the ratio 2:3. Find the angles?

128. ## Environmental Science

Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species:, b. agriculture:, c. biotechnology:, d. medicine:

129. ## Physics Drwls

I was wanting help with my physics post and since no one replied I thought there wasn't a physics tutor on Jiskha, but came back on today cause I really need to get a hang of my physics stuff and luckily seen you Drwls. A bike rider approachea a hill with

130. ## physics

A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

131. ## computers

In which type of network configuration is each device connected to exactly two other devices? (Points: 5) Bus Mesh Ring Star im confused between B and C plz help

132. ## Blank Verse

I needed the scansion for the word "Cordelia" I believe cordelia is /-/- stressed unstressed stressed unstressed let me know if my thought process is right I appreciate any help!

133. ## statistics

x= 70 115 105 82 93 125 88 y= 3 45 21 7 16 62 12 compute r using the computation formula nearest thousandth

134. ## statistics

x= 70 115 105 82 93 125 88 y= 3 45 21 7 16 62 12 compute r using the computation formula nearest thousandth

135. ## Geometry

A ladder leans against a house at a 60° angle to the ground. If the ladder extends to a length of 166 inches, what is the height of the house to the nearest hundredth of an inch?

136. ## physics

A 160g stone, tied to a thread, swings in a horizontal circle with a 100 cm diameter. If the maximum tension the thread can withstand before snapping is 28n, find the A) Maximum speed of the stone. B) Acceleration of the stone at this speed. For A I used

138. ## Algebra II

The intensity of illumination at a given point is directly proportional to the intensity of the light source and inversely proportional to the square of the distance from the light source. If a desk is properly illuminated by a 74.0 w lamp 8.00 ft from the

139. ## social studies 7th gr

Im learning about types of government and need to write advantages and disadvantages for each of the following: do you have website that could help me' 1) theocracy 2) monarchy, 3) dictatorship 4) facisims 5) democracty 6)cnsititutional monarchy 7)

140. ## Mathematic

. The number of vibrations per second made when a stretched wire is plucked varies directly as the square root of the tension in the wire and inversely as the length. If a 1.23 m long wire will vibrate 325 times each second when the tension is 115 N,

141. ## physics

Suppose the simple pendulum shown below were released from an angle of θ = 74°, with L = 0.73 m and m = 0.25 kg..What angle of release would give half the speed of that for the 74° release angle at the bottom of the swing?

142. ## physics

many vacuum flasks have steel walls instead of glass. how would this effect how fast some hot coffee cools?

143. ## MATH

A RADIO USES THE ENERGY EQUIVALENT 1/20 TON OF COAL PER YEAR. FIND THE ENERGY EQUIVALENT IN TONS OF COAL FOR OPERATING A RADIO FOR FOUR YEARS.??

144. ## scien

the relative density is 6.5. find the mass of the solid cube of side 2ocm

145. ## English

Could you please check these sentences, please? Thank you. 1) It is advisable for you to do the exercise. 2) It would be better/best if he did the exercise. (but NOT for him to do) 3) It is difficult for him to do the exercise. It is easy for him to do the

146. ## maths

brand 1 beer contain 8% alcohol and brand2 contain 6.5% of alcohol. how many litres of each alcohol must be added to produce 600 l of a new brand containing 7 % alcohol?

147. ## Calculus

Let f(x)=x^3+3x and g(x=5x^2-x Determine the area of the region enclosed by the graphs of f and g.

148. ## English

Ms. Sue, thanks for your answer. Is there a rule in grammar that I can use to convince someone that #2 is correct? Which one is correct: 1. The box contains two slides labeled "A" or "B". 2. The box contains two slides labeled "A" and "B".

149. ## physics

A student has six textbooks, each with a thickness of 3.6 cm and a weight of 38 N. What is the minimum work the student would have to do to place all the books in a single vertical stack, starting with all the books on the surface of the table?

150. ## science

How plant and animal life dependent on the water cycle?

151. ## health care

What is the difference between descriptive and inferential statistics? Provide example how you could apply both in your work environment

152. ## Physics

If an outburst of northern lights occurs 3.5 days after a large solar flare is seen, what is the average velocity of the solar wind? Give the answer in meters per second.

Identify a sacco organization involved in online business

154. ## English

When can I use "further" as a sentence connector? Thank you. I have a few more doubts. 1) One million people died of the famine (never: one million of people): 2) The uilleann pipes originally known as the Union bagpipe of Ireland. The uilleann pipes bag

155. ## math

rewrite this ad so it will be more effective: Three thousand five hundred dentists surveyed recommend sugarless gum to their parents who chew gum

156. ## math

in art class there are 5 sheets of drawing paper for 9 people. how much paper will each person get?

157. ## Algebra

Wat is the factorization of 2x^4+3x^3-38x^2-27x+180=0

Under what conditions is a flexible budget more effective than a forecast budget?

159. ## English

I urgently need you to check these sentences for me because I made some variations. Thank you very much. 1) The head of our science department would like to discuss the theme in further detail with you before deciding which students to include in the

160. ## chemestry

what is the molarity of a solution made by dissolving 3.86 moles of NaCl in 2.50 L of solution?

161. ## Math

The time needed to empty a vertical cylindrical tank varies directly as the square root of the height of the tank and the square of its radius. By what factor will the emptying time change if the height is doubled and the radius increased by 25%?

162. ## chemistry

How much of the water (in grams or mL) is consumed to produce 15 mL of the H2 gas

163. ## geometry

h ttp://img64.imageshack.us/img64/574/plotformula.jpg (please remove the space in the link above, because I could not post the full problem) I think that I should use the following: a

164. ## statistics

If a company is thinking of giving one department a 1000 bonus. Based on their means and standard deviation scores which set of employess will do better based on this information? Who should get the bonus? Employee A mean 16.875 standard deviation 4.45413

165. ## Algebra

-4^2+44x-160=0 If you graphed the above equation, would the graph open up or down? How can you tell without graphing it?

166. ## calculus

what is the derivative of x^2(x^2-4)

167. ## Trig

Triangle ABC has B= 137degrees, A=31.6 in., and C=42.8 in. Find B.

168. ## algebra

brad wants to buy flowers for his friend with 27 \$ . the daises are \$1 each and the roses are \$3 each. he buys 3 more daises then roses. how much did the roses cost?

169. ## Math

Solve by completing the square x^2+4x-21=0 Help how do I do this???

170. ## physics

Suppose the simple pendulum shown below were released from an angle of θ = 74°, with L = 0.73 m and m = 0.25 kg..What angle of release would give half the speed of that for the 74° release angle at the bottom of the swing?

171. ## general chemistry

Calculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is methyl propyl ether (CH3OC3H7) which has a vapor pressure of 375.2 torr at room temperature, 20C. The volume of the flask is

172. ## trig

In a rignt angle base is 20 mtr,adjacent side is 6 mtr, hypotenus is 20.88 mtr, what is the degree of angle of hypotenus and base

173. ## math

the third and fourth terms of the sequence are 21 and 38. If the second differences are a constant 2, what are the first five terms of the sequence?

174. ## Social Studies

What was the 1st automobile to be mass produced in the U.S.? It was the 1901 one

175. ## English

1. He pretended he was carrying the glass necklace /and started down the stairs. Did the two actions happen at the same time(before 'and' and after 'and)? 2. Pretending he was carrying the glass necklace, he started down the stairs. 3. While he pretended

176. ## physics

The cost of gasoline per hour for running a certain car is directly proportional to the square of the speed. I f the cost is \$2.40 per hour for a speed of 40 km/h, what is the cost per hour for a speed of 60 km/h?

177. ## Physics

A projectile was launched 64° above the horizontal, attaining a height of 10 m. What is the projectile's initial speed?

178. ## Math

How do you calculate interest earned using the initial money and ending savings?

179. ## chemistry

Oxidation CN- C=2+ N=3- Can you explain how C is 2+

180. ## Religion

Movie: Romero Q. how do you think that believing in Jesus affected what Romero did??

181. ## ISB

Find the angles of atriangle which are in the ratio 2:3:5. Could someone explain how to do this also. Thnaks.

182. ## computers

Which type of data communication system is composed of a group of devices in close proximity? (Points: 5) CAN LAN MAN WAN Is it LAN

183. ## world geography

i'm stuck on this one whats the answer? 7. Which European colonial power took control of Malaya and built the port at Singapore? A. Spain B. Portugal C. Netherlands D. The United Kingdom

184. ## Algebra II

The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn \$5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of \$6148.48?

185. ## math

What is the distance between two parallel lines whose equation is L1,3x-4y+10=0 and L2,3x-4y+2=0

You're standing several meters away from a regular (plane) mirror. The mirror has water spots on its surface. Can you see both the spots and yourself in focus at the same time?

187. ## Javascript

I would like the function test to get the input from the user and display the like the counter function and to display if it passed or not. var negatives =0; var zeroes =0; var positives=0 ; function counter(array){ var i=0; for(i=0;i 0) : positives ++;

188. ## Geology

What type of rock is grey with white veins along the BOTTOM of the walls? What is the rock's origin?

189. ## Physics

A projectile is shot from the ground at an angle of 60 degrees with respect to the horizontal, and it lands on the ground 5 seconds later. Find: a. the horizontal component of initial velocity b. the vertical component of initial velocity c. initial speed

190. ## math

Would you use mental math to solve 2984+1997+406? Explain?

191. ## Math

The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn \$5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of \$6148.48?

192. ## English

I still have a doubt, Could you check this sentence, please? 1) I think it would be best if our science department (head??) teacher would get in touch with you directly so that you can discuss every detail before drawing up the project.

193. ## Math

find the x and y intercepts f(x)=9x^2+24x+16 Help

194. ## Algebra II

If y varies jointly as w and x, and y is 483 when x is 742 and w is 383, find y when x is 274 and w is 756.

195. ## English

Thank you. Could I use the simple past instead of the present in the sentence I posted you? It would be best if our science teacher spoke with you .... Can I say: I think it woud be best for our science teacher to speak with you directy?

196. ## Algebra II

The amount paid to a work crew varies jointly as the number of persons working and the length of time worked. If 5 workers earn \$5123.73 in 3.0 weeks, in how many weeks will 6 workers earn a total of \$6148.48?

197. ## Algebra II

The volume of a given weight of gas varies directly as its absolute temperature t and inversely as its pressure p. If the volume is 4.45 m^3 when p=225 kilo pascals (kpa) and t = 305 K, find the volumn when p = 325 kpa and t = 354 k.

198. ## English

1. He must be a doctor. 2. He has to be a doctor. (Are both the same? Is #2 grammatical?)

199. ## law

Can you say you are terminating a mediation if both parties show up a mediation and announces that they have settled the problem? Should you still have a caucus with both parties? Are do you terminate mediation?

200. ## math

what is the square of 65

201. ## ETH501

Sethi, S., Veral, E., Shapiro, H., & Emelianova, O.. (2011). Mattel, Inc.: Global Manufacturing Principles (GMP) - A Life-Cycle Analysis of a Company-Based Code of Conduct in the Toy Industry. Journal of Business Ethics, 99(4), 483-517. Retrieved August 2,

202. ## riddle

Did you hear about . . . the words are something like away five ten music were who tigers a two cash got the store dough etc .

203. ## MATH

So none of these are correct? 2/3 divided 3/5 = 1 1/9 or 2/5?

204. ## Algebra 2

The radius of a right cylinder is 15 inches and its height is 6 inches. What single amount can be added to either the radius or the height so that the volumes will increase the same amount?

205. ## trig

In a rignt angle base is 20 mtr,adjacent side is 6 mtr, hypotenus is 20.88 mtr, what is the degree of angle of hypotenus and base

206. ## microsoft office aplication-computers

YOU HAVE JUST INSERTED A TABLE WITHIN POWERPOINT SLIDE.You will then place the text within the of the table: A)records b)cells c)legends d)placements IS B CORRECT ANSWER?THANK YOU:)

207. ## english

Once you click on the paint palette icon, you will be given a list of potential resources. How many resources are under the “Arts and Humanities” category?

208. ## math

Will pays \$85 membership fee to become a member of a gym. He then pays only \$37 every month. Write an equation to show how many months he could work out if he has \$560.

209. ## math

the area is 16msquared it has to be a rectangle. what is the permitter

210. ## math

924cm is how many meters. my shape has to be square what are my measurements converted to meters

211. ## math

the perimeter is 1000cm. my shape has to be rectangle and convered to meters. what are my deminsions

212. ## English

I added a few more things on a listening comprehension I find it difficult to simplify.I hope you can help me. 1) The House of Lords represented the aristocracy and the Church of England, whereas the House of Commons represented the merchants and the

213. ## English- dracula

What are some examples of moral seriousness in dracula?

214. ## English

1. It had to be a real diamond. 2. It must have been a real diamond. (Does #1 mean #2? Are both the same?)

215. ## Trig/Math

RST is a triangle with right angle S. If s- 21.3 Angstroms and t=8.71 Angstroms, find the measure of the larger acute angle.

216. ## Algebra 2

Factor 6x^2-6y^2 6(x+y(x-y) or 6(x-y)^2 ??

217. ## math

Find the angles of atriangle which are in the ratio 2:3:5. Could someone explain how to do this also. Thanks.

218. ## XECO/212

Can you locate recent articles in the New York Times or Wall Street Journal in which economists are quoted using positive and normative statements? Provide one quote and its context for both a positive and normative statement.

219. ## Math

Write a quadratic equation having the given number as solutions -7 and -4 I cant think of how to do this?

220. ## english

Any suggestions on punctuation, grammar and sentence structure? Springfield Homeless Camps and the Law The growing homeless population in Springfield Missouri is unavoidable. They are seen everywhere, especially in more populated towns and cities. As they

221. ## Intergrated science

What are the various solvents for the following solutes? a. wax b. plant pigment c. glucose d. coaltar e. fat

222. ## Maths

Solve the equation. 2y^2 - 6y = 56

◦What do you feel are the biggest weaknesses of the health care plan, and why? ◦Be sure to provide 2–3 weaknesses for each group (i.e. providers and patients), and explain your rationale for choosing each by supporting your thoughts with properly

224. ## math/science

what is dimensional analysis and how does it work?

how do you convert 2 4/5 to decimals

226. ## math

1 hour and 35 minutes before12:00

227. ## math

solve for x x^2+18x+4=0 is the answer -18 + or -square root symbol 90

228. ## English

Thank you. I have a doubt on Hamlet's plot. 1) Hamlet's father has been dead only two months, but but his mother, Queen Gertrude, has married her brother-in-law, Claudius, who has now become king. 2) Does it mean that "he had died two months before"? I

229. ## english

which one is correct: 1. the box contains two slides labeled "A" or "B" 2. the box contains two slides labeled "A" and "B"

230. ## Math

can you please let me know if these are correct: 1. 5 5/6 x 2 4/5 = 16 2. 2/3 divided 3/5 = 1 1/9 or 2/5? 3. 7/12 divided 2/3 = 7/8 4. 3 1/2 divided 3/4 = 4 2/3 or 2 5/7 5. 4 2/3 divided 7 = 2/3 6. 4 1/5 divided 1 2/5 = 3 7. 2/5 x 5/14 = 1//7 8. 2/3 + 1/7

232. ## physics

explain why air moving over an object can increase its rate of cooling.

233. ## computers

What type of network is a collection of devices that equally share the processing and storage without having a centralized server? (Points: 5) Client/server File server Peer-to-peer Web-based is it C

234. ## math

curve y=f(x),minimum point (1,q),q is a constant...then the quadratic function is 3x(x+p)^2 + 2....find 1.)value p,2.)value q

x+5/6 = 3x-5/8 Solve for x

236. ## english

can you give me a good common sentence that has these words:to,two,and too

237. ## math

85min earlier than 18:50

238. ## Anthropology11

does anyone know any good videos on generalized anxiety disorder?

239. ## math

give exact and approximate solutions to three decimal places x^2+8x+16=9

240. ## math

100minutes earliar than 19:40

241. ## math

the area is 16msquare it has to be a square what is the perimeter

242. ## math

1 hour and 50 minutes before01:30

243. ## math

the permitter has to be 10m, my shape has to be a rectangle what are my deminsions