# Questions Asked onOctober 14, 2011

1. ## Chemistry

A snorkeler takes a syringe filled with 16 mL of air from the surface, where the pressure is 1.0 ATM, to an unknown depth. The volume of the air in the syringe at this depth is 7.5 mL. What Is the pressure at this depth? If the pressure increases by an

2. ## math

the 9th term of an AP is 52 while the 12th term is 70.find the sum of its 20th term

3. ## chemistry

A solution contain 43mEq/L of Cl- and 11 mEq/L of HPO4*2-. If the only cation in the solution is Na+ what is the Na+ concentration if mEq/L? Can you help me with each step to solve this problem?

4. ## math

Mr. Wilson invested money in two accounts. His total investment was \$40,000. If one account pays 4% in interest and the other pays 8% in interest, how much does he have in each account if he earned a total of \$2,720 in interest in 1 year?

5. ## physics

A cart loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope. The rope is inclined at 30.4  above the horizontal and the cart moves 21.5 m on a horizontal floor. The coefficient of kinetic friction between ground and cart

6. ## Calculus

Given f(x) = (x^4 + 17) / (6x^2 + x - 1) Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. From the work that I have done so far, I know that there are two

7. ## physics

Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance

8. ## Calculus

Suppose f(x) = [sin(x^2 - 4)]^ -1. Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. Okay, I presume that the [] brackets denote the greatest integer function (int ()

9. ## chemistry

Acetylene gas, c2h2, burns in oxygen to produce carbon dioxide and water. If 61.4 g of co2 are produced when 22.7g c2h2 react with sufficient oxygen, what is the percent yield for the reaction?

10. ## math

bill furrier marks up mink coats 3000.00, which represents a 50% markup on cost. what is the cost of the coats?

11. ## cost accounting

The East Company manufactures several different products. Unit costs associated with Product ORD203 are as follows: Direct materials \$50 Direct manufacturing labor 8 Variable manufacturing overhead 10 Fixed manufacturing overhead 23 Sales commissions (2%

12. ## economics

Is limitless growth really possible? What forces do you think will be most important in slowing or halting economic growth?

13. ## math

a sphere has a volume of 500/3 pi cubic centimeters. What is the total surface area, in sqaure cntimeters, of the square? A. 25 pi B. 40 pi C. 100 pi D. 400 pi Please show your work. im very confused :(

14. ## Calculus

Suppose f(x) = [sin(x^2 - 4)]^ -1. Identify any points of discontinuity, and determine (giving reasons) if they are removable, infinite (essential), or jump discontinuities. Okay, I presume that the [] brackets denote the greatest integer function (int ()

15. ## calculus

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint cm thick to a hemispherical dome with a diameter of meters.

16. ## math

mistyped before. A sphere has a volume of 500/3 pi cubic centimeters. What is the total surface area in square centimeters, of the sphere? The correct answer is 100pi, but I have no idea why. I need to see it worked out from start to finish :(

give the two possible alleles in the eggs produced by a women whose genotype is JjKkLl

18. ## chemistry

What mass of oxygen is needed for the complete combustion of 2.60×10−3 of methane? Express your answer with the appropriate units.

19. ## pre-calculus

A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two adjacent sides. The greenbelt must be 10 times the area of the

20. ## physics

A particle leaves the origin with an initial velocity = (2.35 m/s) and moves with constant acceleration = (-1.90 m/s2) + (2.60 m/s2)>. (a) How far does the particle move in the x direction before turning around? m (b) What is the particle's velocity at

21. ## stat

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: longer than 80 minutes? less

22. ## Scholarship

Please revise my essay by giving tip or suggestions. A scholarship like “The FATE” will help me achieve my educational & career goals. “The FATE” not only will benefit financially but it will also boost my self-confidence, give me greater power of

23. ## statistics math &146

Outstanding balance on each account. is it a mean median or mode

24. ## physics

A uniform chain 10m long and weighing 6 kg permetre hangs vertically.calculate the work required to wind it up

25. ## physics

Find the resultant of two vectors 7N and 8N inclined at an angle of 65 degree to each other

26. ## Physics

A hot-air balloon is rising upward with a constant speed of 2.83 m/s. When the balloon is 8.64 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

27. ## Monthly payment-Math

Okay here is my question two guys buy a new room for \$10,000 down payment: \$1000 and they want to pay whatever they owe in 30 monthly payments.. find the amount of the monthly payment at 10% add on interest. I keep getting 330.. but the answer is 375. I

28. ## Chemistry

Using enthalpies of formation, calculate the quantity of heat produced when 14.0 g of propane is completely combusted in air under standard conditions.

29. ## physics

The space shuttle has a total mass of 2.0 x 10^6 kg. At liftoff, the engines exert a total thrust of 35 x 10^6 N. Calculate the shuttle's weight. Calculate the shuttle's acceleration at liftoff. If the acceleration averages 13 m/s/s over the first 10

30. ## Child development

Using these steps, consider a cognitive “problem” a young child might encounter that he/she needs help with (such as putting together a puzzle, sequencing – putting items in order, sorting by color or size, adding, subtracting, tying shoes, learning

31. ## scientific notaton

Express the following quantities in the scientific notation: According to NASA, Mars is 225,000,000 km from the Sun at its closest point.

32. ## patterns

the first five terms of a sequence are shown below: 8,6,4,2,0 ... What is the 100th term in the sequence? A. -192 B. -190 C. -108 D. -90 I know how to figure this out but it would take a few minutes. There UST be some sort of formula?

33. ## math sequence

the first 5 terms of a linear sequence are given below: 8,6,4,2,0... What is the 100th term in the sequence? A. -192 B. -190 C. -108 D. -90 I could figure this out in like 5 minutes, but I know there's a pattern I can't remember to figure it out quicker.

34. ## Unscramble

Unscramble the following words eye lies the beauty of in the beholder

35. ## math

The demand for the video game is modeled by the logistic curve, where q(t) is the total number of units sold t months after its introduction. q(t)= 10000/(1+0.5 e**(-0.4t)) (a) Use technology to estimate q'(4) to the nearest integer. mark units per month

36. ## science

How many years after voyage 2's launch was it before scientists could view its photographs of Uranus?

37. ## calculus

Find the equation of the line tangent to the graph of the given function at the point with the indicated x-coordinate. f(x)=(4 sqrt(x)+7)/(sqrt(x)+2); text( ) x=4

38. ## Sat prep English

Choose the word which best completes the sentence Neither the cat nor the dog (play, plays) together. And Neither the cat nor the dogs (play, plays) together. And Neither the cats nor the dogs (play, plays) together.

39. ## math

Express the following quantities in the scientific notation: According to NASA, Mars is 225,000,000 km from the Sun at its closest point.

40. ## physics

Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each elevator has mass 500 kg when empty and maximum acceleration 2.25 m/s^2. The elevator cables can withstand a maximum tension of 19.6 kN before breaking.

41. ## Differenctial equations

Use the change of variable x = exp(s) to recast the differential equation xy′′+y′+(L/x)y=0 Please HELP ME

42. ## math

suppose walmart stok is selling at 59 dollars a share and mattel stock is selling at 28 a share. amy waller has a maximum of 6000 dollars to invest. she wishes to purchase four times as many shares of walmart as of mattel. only whole shares of stock can be

43. ## physics

A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

44. ## physics

A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

45. ## physics

A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor?

46. ## chemistry

hey drbob222, where did u get 500ml from? question is: 1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL are taken from the 100 mL volumetric flask and transferred to a 0.500 L

47. ## Comp 156

How would overly biased writing negatively affect a persuasive essay?

48. ## chemistry

A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

49. ## chemistry

The solubility product constant (Ksp) for the dissolution of Cu(OH)2 as represented by the chemical equation is 2.6 x 10-19. Cu(OH)2 (s) Cu2+ (aq) + 2 OH- (aq) Calculate the moles of Cu(OH)2 that dissolves in 1900 mL of water. i know how to do it when its

50. ## Physics

A shell of a gun has a initial speed of 1700 m/s at initial inclination of 55◦ above the horiztontal. Ignore air resistance and other effects. a) what is the maximum height? B) what is the total time of the shell's flight? c) how far away did the shell

we have to prepare model, ppt and file on cotton textile industry. so help us out.

52. ## calculus

t(x)=((x+4)^0.1-5x)^-5.1

53. ## physics

if i ran a 4.6 forty yard dash and i ran down hill at a max speed of 18 miles per hour and punched you right in the face how many foot pounds of pressure would my hit have

54. ## math test

if a 15 foot pece of electric tape has 0.56 feet cut from it then what is the new length of tape?

55. ## Biology

How is it a solution of 300mOsM NaCl is both isotonic and isosmotic to a red blood cell with an osmolarity of 300mOsM? Yet a solution of 300mOsM urea is only isosmotic to that red blood cell?

56. ## Chemistry

Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is about 0.5min. If I use a 4.6 x 100mm x 2.7um column,

57. ## Science

anyone know the cost of neon as of now

58. ## Sociology

Q1. All societies produce some form of inequality. a)True b)False Q2.Income is the measure of social class inequality that is most often used. a)True b)False for 1 i think a and for 2 a

59. ## Sociology

A major reason why children of upper-middle class families do well in school is the pressure that is placed on them by their families. a.True b.False a I guess..

60. ## owning

_________of the vehicle is the likely consequence of failture to make the required loan payments. A.Theft B.Repossession C.Destruction D.Loss of warranty i got D

61. ## Sociology

When children are taught to sit straight and not slouch, to address men older than themselves as "sir" and to look the person they are addressing in the eye, they are learning aspects of: a.deference b.demeanor its deference, maybe.

62. ## algebra 2

write a polynomial function of least degree that has real coefficeints the given zeros and a leading coefficient of 1. the problem is 5,2i,-2i

63. ## physics

Let A and B be the two vectors of magnitude 10 unit . If they are inclined to X-axis at angle 30 degree and 60 degree respectively. Find the resultant.

64. ## algebra

the surface area of a cylinder with a radius of 21 cm and a height of 42 cm. Use 22/7 for pi .

65. ## Pre-Algebra

Evaluate the expression. 1. (18 + 9) + 11 2. 8(-2)(5) 3. 1.2 + 4.7 + 1.5 Simplify the expression. 4. t + 24 + 17 5.-8 + c + (-10) 6.4(6x)

66. ## English

1. When did he live in this town? 2. When did he start to live in this town? (Are both grammatical?

67. ## physics

A 23- bullet traveling 230 penetrates a 3.6 block of wood and emerges cleanly at 170 . If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

69. ## Algebra

The sum of two consecutive odd integers is 56. A. Define a variable for the smaller integer. B. What must you add to an odd integer to get the next greater odd integer? C. Write an expression for the second integer. D. Write and solve an equation to find

70. ## Algebra

A jet leaves the Charlotte, North Carolina, airport traveling at an average rate of 564 km/h. Another jet leaves the airport one half hour later traveling at 744km/h in the same direction. Use an equation to find how long the second jet will take to

71. ## Algebra

This is soooo confusing! An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours. A. Define a

72. ## physics

Two balls have the same mass of 3.085 kg and identical charges of 21.0 ìC. They hang from the ceiling on strings of identical length as shown in the figure. If the angle with respect to the vertical of the strings is 22.0°, what is the length of the

73. ## Calculus

equation of tangent line of the function sqrt (3x+5) where x=10

74. ## Mathematics

Alicea baked a plum bar and cut it into ninths. What fair trades can she make with Rosita, whose raspberry bar is divided into ninths?

75. ## essay

Hello, I am writing a film analysis on the film Heathers. I am doing a Character analysis on Heather Chandler, and I wanted to say she is at the top of her hierocracy but I wasn't sure if that made sense if anyone gets what im trying to say plz help

76. ## PROBLEM SOLVING IN MATHEMATICS

what do you need to know to solve this? you have kite ABCD. angle B is at the top of the kite and measures 80 degrees. angles A and C are on the sides and angle D is at the bottom of the kite. what is the largest siza that angle A or C could be?

77. ## Calculus (Discontinuities)

Suppose, f(x) = { (x - 1)^2 / x + 1 if x < 2 (x^2 - 2x - 8)/(x - 4) if 2

78. ## HELP-PROBLEM SOLVING IN MATHEMATICS

probably the most famous approach to problem solving is Polya's four-step process. Describe the four-step process.

79. ## Physics

A seed shoots out from the pod with the speed of 2.4 m/s but with a direction of motion 30° below the horizontal. The seed pod is initially 1.2 m above the ground. (a) How long does it take for the seed to land? (Neglect air resistance.) (b) What

80. ## physics

Two objects attract each other gravitationally with a force of 2.1×10−10 when they are 0.25 apart. Their total mass is 4.50 .

charlie can not remember how much he financed to buy his car.. he does remember that his monthly payment is \$200 and his add on interest rate was 12% and he made a total of 18 payments. find the amount of his loan to the nearest penny. I keep getting over

82. ## art

got a project about you need to find 12 pictures to suit the vales like line texture and etc

83. ## chemistry

a bottle of 12.o M HCL has only 49.8 ml left in it. What is the molarity of the hcl if the solution is diluted to 350ml.

84. ## Psychology

Contribution of psycholoy to learning in primary schools?

85. ## stats

For each of the following situations, determine: a) the null and research hypotheses; b) the hypothesis test used (normal curve, single sample t-test, dependent samples t-test, independent samples t-test, ANOVA). For situations 1, 3, 4, and 5, also state

86. ## Physics

A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

87. ## Chemistry

A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate? I got this one, its 39.4 g B)The reaction described in Part A required 3.28 of potassium chloride. What is the concentration of this potassium chloride

88. ## Chem

1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL are taken from the 100 mL volumetric flask and transferred to a 0.500 L flask, and it is brought up to volume. What is the

89. ## Pre Calculus

Applications of trigonometric functions Solve the missing parts of the triangle satisfying a=125 b=150 alpha=55 degrees There are two solutions

90. ## accounting

Jane Doe of Creative Marketing was recording transactions into the accounting records to prepare financial statements for the bank in a loan application. Her expenses were higher than anticipated and she was concerned about the effects on net income. As

Posted by anne on Friday, October 14, 2011 at 6:30pm. Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is

92. ## math

An oceanographic research vessel comes across a volcano under the sea. The top of the volcano is 450 ft below the surface and the sea floor is -6,700 ft. What is the height of the volcano?

93. ## com-156

does the opinion of an expert in the field carry more weight than the opinion of someone that is not?

94. ## Chemistry

How many moles of CaCl2 are in 250mL of a 3.0M of CaCl2? Ca=40.08 -- Cl=35.45 X 2 ?? Thanks

95. ## Chemistry

reaction between sulfur and oxygen is S+O2 = SO2. how much sulfur is in the original materials, would result in 1000g of so2

96. ## physics

A car starts from rest and accelerates at 6 m/s/s. How far does it travel in 3 s? Answer in meters. Round answer to the nearest ones.

97. ## physics

A satellite orbits Earth once per day. From the reference frame of the Moon, which orbits Earth once about every 27 days, what is its motion?

98. ## chemistry

What is the concentration, mass/vol percent (m/v) of a solution prepared from 50.gNaCl and 2.5L? Do I divide 50.g NaCl/2.5L?? = 20% Thank you!

99. ## physics

object A exerts a gravitational force of magnitude 8.2 x 10^-10 N on object B. determine the magnitude of the gravitational force if, simultaneously, the separation distance is tripled, mA increased by 4 times and m8 is halved. explain your reasons and

100. ## chemistry

what is ph during titration of 10.00ml of 0.1000m triethylamine, ch3ch2)3n (kb=2.3x10^-, with 0.1000m HCL solution after addition of titrant (HCL) 1, 0ml, 5ml,10ml, 20ml,30ml

101. ## Chemistry

Calculate your Kinetic Energy in Joules if you weigh50 kg and you are walking 2 meters/second. This is what I did: Ep=50kg x 9.8m/s^2 x 2m/s = 980 Joules. What do I do next?

102. ## physics

A hockey puck is hit on a frozen lake and starts moving with a speed of 10.6 m/s. Five seconds later, its speed is 6.10 m/s. (a) What is its average acceleration? m/s2 (b) What is the average value of the coefficient of kinetic friction between puck and

103. ## physics

A woman at an airport is towing her 21.0 kg suitcase at constant speed by pulling on the strap at an angle of è above the horizontal (Fig. P4.40). She pulls on the strap with a 34.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle

104. ## calculus

Find an equation of the tangent line to the curve at y = cosx - sinx (pi, -1) I found y'= -sinx - cosx and used the equation of the tangent y = mx +b I input the values and get -1 - [(-sinx - cosx) * pi] = b the answer says it is y = x - 1 - pi I have no

105. ## Geography

I need to write about the river tees AND about the source to mouth. Please please help me :( I have to redo do it by monday and I can only use the computer for 30 more minutes! Please F'ing help ME.

106. ## physics

The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 100 cm apart on the same axle. From the angular displacement 22.9 ◦ of the two bullet holes in the disks and the rotational

107. ## Stats.....plz help me.....

Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Errors Frequency 51-53 9 54-56 19 57-59 16 60-62 24 63-65 25

108. ## math

a sphere has a volume of 500/3pi cubvic centimeters. What is the total surface area, in square centimeters, of the square? The answer is 100pi, but i don't know why. HELP!!!!!!!!!

109. ## math

If H is a subgroup of G, and K is a normal subgroup of G, prove that: HK = KH

Posted by anne on Friday, October 14, 2011 at 6:30pm. Hi, I have a question on HPLC (high performance liquid chromatography). The procedure says to use a 4.6 x 150mm x 3um column. The relative retention time of Impurity B with reference to the main peak is

Problem 11.3 -- Kelly is a 35 year old single parent with a one-year-old son. She earns \$45,000 a year as a marketing analyst and has employer paid group life insurance worth twice her annual salary. She also participates in her employer’s 401(k)

112. ## physics

4. Brick A is hurled vertically upward from a bridge at an initial speed of 4.90 m/s. One second later, Brick B is thrown horizontally from the same bridge with an initial speed of 9.80 m/s. Which hits the water first?

113. ## Algebra

In Algebra terms, what does "restrict the variables" mean?

114. ## physics

4. Brick A is hurled vertically upward from a bridge at an initial speed of 4.90 m/s. One second later, Brick B is thrown horizontally from the same bridge with an initial speed of 9.80 m/s. Which hits the water first?

115. ## MBA Practice problems

you are presently involved with a project to establish the cost of the gold presently used in the production of 1000 computer chips per month. each chip uses two grams of 20 ct gold with the remaining portion of a metal whose cost is insignificant. what is

116. ## physics

can you explain briefly about fluid statics?

117. ## Physics 1 - Mechanics

You throw a rock with an initial horizontal velocity and it hits the ground at x meters away from your feet. What if: (a) You throw the same stone with the same initial conditions but instead you do this on a another planet with a mass 4 times the mass of

118. ## child development

• Which one of Piaget’s stages of intellectual development would the behavior described fall into? • How would knowledge about that stage help you in resolving the situation? Scenario #1 A child snaps two duplo blocks together and walks around making

119. ## Physics 1 - Mechanics

You are making a trip in a space shuttle, and your friend Jimmy is in another space shuttle. He shares the same circular orbit with you, which is 420 km above the Earth, but he is 21 km ahead of you. (a) How long will it take you to catch up with your

120. ## Science

A spherical rock rests at the top of a steep hill. the rock has A)Potential Energy B) Chemical energy C)Kinetic energy or D) no energy i think it's A or B but I'm not sure. thanks

121. ## statistics

You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.7. With water it will die with probability 0.6. You are 84 % certain the neighbor will remember to water the plant. You come back from

122. ## Chemistry

Calculate your Kinetic Energy in Joules if you weigh50 kg and you are walking 2 meters/second. This is what I did: KE is Ek=1/2mv^2 So it would be Ek=1/2(50kg) x 2m/s Then I convert kg to pounds. There are .454kg in 1 lb so 50(.454)=22.7lbs

123. ## physics

A 33.0 kg box initially at rest is pushed 5.95 m along a rough, horizontal floor with a constant applied horizontal force of 145 N. If the coefficient of friction between box and floor is 0.300. find: the work done by the applied force the increase in

124. ## Religion of the World

I need information pertaining to the similarities in Judaism, Isslam and Christianity pertaining to the ten commandments.

125. ## Science Math

7. Calculate the difference in the lung volumes of a male athlete who is 62 inches tall and a female athlete who is 56 inches tall. Show your work. (2 points)

Let c be a positive integer with 1

127. ## algebra

solve the equation for y 4y+5x= -7 I came up with this is, is it right? y=-5x/4+4

128. ## physics

To move a large crate across a rough floor, you push on it with a force F at an angle of 21°, below the horizontal, as shown in the figure. Find the acceleration of the crate, given that the mass of the crate is m = 38 kg, the applied force is 329 N and

129. ## math

What is the mass of a liter of gasoline if its density is 0.66 g/mL?

130. ## HUM

What is one important distinction you could not overlook making when critically evaluating the information provided in these materials about the Boston Tea Party? Clarify the importance of that distinction

if the line 3x-4y=0 is tangent in the first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????

132. ## HUM/111

identify two possible strategies that Thomas Hutchinson or Samuel Adams, or both, likely used to develop and improve his thinking prior to taking a stand and acting according to his beliefs.

133. ## Physics

A car traveling at 18 m/s accelerates at 5.5 m/s2 for 9 s. How far does the car travel during the time it is accelerating for 9 seconds?

134. ## Chem/Physics

A baseball weighs 5.19 . What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 98.0 ?

135. ## Calculus

h(x)=In abs (*x+1)/(3x-6)(x-4)

136. ## Calculus

s(x)=log3(x^2+6x) find derivative?

137. ## science

Rebecca is studying the range of growth of tomato plants. She measured the following data in the fourth week of growing her plants. tomato plant measured growth 1 1.5 cm 2 6.5 cm 3 7 cm 4 6.5 cm 5 3.25 cm 6 7.75 cm 7 5.5 cm 8 6 cm Given this data, what

138. ## GK

which is correct word beuaty lies in the eyes of the beholder or the beauty of eyes lies in the beholder

139. ## math

What is the area of 11 m 21 m 8 m 5 m

140. ## physics

Ten boxes, each 16.0 cm high and weighing 250 N, initially are all side by side on the floor. The boxes are lifted and placed in a vertical stack 1.60 m high in a time interval of 7.00 s. Compute the power necessary to stack the boxes.

141. ## Physics

A 1.21 kg block slides down a 25.0 m long 25.0° incline at constant velocity. How much work is done by friction?

142. ## College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

143. ## College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

144. ## College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

145. ## College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

146. ## College Physics

A 4.30 kg block starts from rest and slides down a frictionless incline, dropping a vertical distance of 2.60 m, before compressing a spring of force constant 2.20 104 N/m. Find the maximum compression of the spring.

147. ## College Physics

Find the minimum work required to carry a truckload of furniture weighing 1.99 104 N to a third-story apartment, 24.0 m above the truck.

148. ## algebra

a sphere has a volume of 500/3pi cubic centimeters. What is the total surface area, in square centimeters, of the sphere?

149. ## Chemistry 101

A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

150. ## chem

How many grams of H20 are produced when 140 grams of NH3 reacts by the following? Answer in 3 SF 4NH3+6NO--->5N2+6H20 Please help! Thanks

151. ## chemistry

what is the typical relationship between the rate of reaction and the value of the equilibrium constant? A) it is a direct porportionality B) it is an exponential proportionality C) it is an inverse proportionality D) there is no relationship between these

152. ## Chemistry

Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric acid by mass calculate the number of moles of phosphoric acid

153. ## Chemistry

Givien a 2.0kg solution of phosphoric acid and water 53% phosphoric acid by mass calculate the number of moles of phosphoric acid

154. ## microeconomics

Do you think that a firm always pays the lowest wages they can? Why/why not? Relate your answer to productivity. Which workers do you think would be the first to be laid-off in the event of a slowdown. Why?

155. ## opertating a car

The sticker price on a new car includes: A.The final selling price of the vehicle B.an extended warranty C.everything you need to know about the vehicle D.the retail price of everything that comes with that particular vehicles. i got D

156. ## anaheim

a glacier moves with a speed of 54m/s. how many years wold it take for the glacier to move 0.65 km? assume there are 365 days in a year

157. ## Truth in Lending

I have a quick question. I keep getting confused in this topic. Purchase down payment= \$3000 add on number of payments = 18 price= \$500 interest rate : 7% FIND THE APR TO THE NEAREST HALF. In my solution I am first calculating the total payment and then I

158. ## World History

describe three social or economic reforms between 1917 and the 1930s that were a result of the Mexican Revolution.

159. ## Physics

A rifle is pointed horizantally 100 meters away from a target. The bullet hits 0.75 millimeters below the target. How long did it take to get there? What was the velocity of the bullet when it was first shot?

160. ## Science

What is the role can play integrated science in primary schools?

161. ## Maths

Please show me the way of using formula log?

162. ## physics

A 14 g bullet is ﬁred into a 120 g wooden block initially at rest on a horizontal surface. The acceleration of gravity is 9.8 m/s^2 . After impact, the block slides 6.97 m before coming to rest.If the coeﬃcient of friction between block and surface is

163. ## Chemistry

A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.58 mol of a gaseous product. If the cylinder contained 0.11 mol of gas before the reaction and had an initial volume of 2.1 L, what was it's volume after the reaction. Am

164. ## English

Could you check these few sentences, please? Thank you. 1) What are people intolerant about (is "of" also possible)? 2)They are intolerant about the color of the skin, religion and clothes. 3) They are prejudiced against people of other religions. 4) In