# Questions Asked onSeptember 25, 2011

1. ## math

A cube measures 2 meters on each side. What is the volume of the cube?

2. ## diffirential calculus

a woman 6ft tall walks away from a light 10ft above the ground. if her shadow lengthens at the rate of 2ft/sec. how fast is she walking?

3. ## geometry

Find the length of a side of a square whose perimeter and area have the same value. help? perimeter of a square is P=4s & the area of a square is A=s^2

4. ## math

A cubic yard is 3 feet long by 3 feet wide by 3 feet tall. (Part A) How many cubic feet are in 1 cubic yard? (Part B) Landscaping mulch costs &1 per cubic foot. What is the cost for 3 cubic yards of landscaping mulch?

5. ## diffirential calculus

a pole 27ft long is carried horizontally along a corridor 8ft wide and into a second corridor at right angles to the first. how wide must the secon corridor be?

6. ## Mun

vector A is 3.95 m and points 37.4 deg north of east vector B is 6.60 m points 37.9 deg east of north what is the resultant vector

asked by Joseph Charles
7. ## diffirential calculus

considering the area of a circular ring as a increment of area of a circle, find approximately the area of a ring whose inner and outer radii are 3 inches and 3.02 inches, respectively.

8. ## English 101

What are some interesting topic regarding Pop Culture. Any ideas for my research paper.

9. ## diffirential calculus

two points are moving horizontally in space at different heights above the earth. show that the angle of elevation of the line joining them is greater when the distance between them is least.

10. ## statistics

A small company has 15 employees. Five of these employees will be selected randomly to be interviewed as part of an employee satisfaction program. How many different groups of five can be selected?

11. ## diffirential calculus

a builder intends to construct a storage shed having a volume of 900ft^3, a flat roof and a rectangular base whose width is three-fourths the length. the cost per square foot of the materials is 4000.00 for the floor,6000.00 for the sides and 3000.00 for

12. ## help

1.Lynn's teacher likes to give lectures and rarely uses the overhead or challenges to illustrate her points. Lynn is struggling in the teacher's class. What is least likely lynn's preferred style of learning? A. auditory B. Kinesthetic C. Visual D. Musical

13. ## physics

is it possible a son is biologicaly older than his parent?

14. ## math

Can someone help me with how to determine the slope?

15. ## biology

is it possible a son is biologicaly older than his parent?

16. ## Written Analysis

I am in desperate need of some help with these questions? Can you identify which theory of life's origin is "true"? By what basis do you make your decision. Should one theory or the other or both be taught in acts that are left school? If so, should they

asked by Keri Ann
17. ## math

a function f(x)has doamin {xeR/x>-4} and range {yeR/y

18. ## math

If f(x) = (x-4) (x+3) , determine the x-intercept of each function a)y=f(x) b) y=-2f(x) c) y=(-(x+1)) thanks for the help !!!!!!

19. ## Chemistry

How many moles of Fe2O3 are required to produce 38.4 moles of Fe?

20. ## college Algebra

Let g(x) = x3 - 12x + 16. Find the location of the local minimum of this function (there is only one such location). Evaluate function g(x) at the x-value of the ordered pair location of this local minimum.

21. ## chemistry

Write a balanced chemical equation for the reaction that occurs when Mg(s)reacts with Cl2(g). Express your answer as a balanced chemical equation. Identify all of the phases in your answer.

22. ## finance

What are the similarities and differences between net present value and interest rate of return? Which method do you prefer to use in making capital budgeting decisions? Why?

23. ## physics

A 300 kg sailboat accelerates at 0.5 m/s^2 at an angle of 25degrees North of East. Find the magnitude and direction of the force responsible for this accelereation.

24. ## physics

At the surface of Mars, the acceleration due to gravity is 3.72 m/s^2. A watermelon has a mass of 4.5 kg here on Earth. a) What is its weight here on earth? b) What is its mass in Mars? c)What is its weight in Mars?

25. ## word problem(algebra)

a shopkeeper bought 16 boxes of pens.each box contained m pens.10 pens were sold on the first day. (a) how many pens were left after the first day?give ur answer in terms of m. (b) if m=5,how many pens were left after the first day?

26. ## word problem(algebra)

mary has y m of cloth.she used 2 m to sew a skirt.she used the remaining cloth to make 5 jackets. (a) find the amount of material that was used to make each jacket in terms of y. (b) if she has 17 m of cloth.how much material was used for each jacket?

27. ## word problem(algebra)

a magazine costs half as much as a book.The book costs \$p.A pen costs \$2 more than the magazine. (a) how much is the pen in terms of p? (b) if the book costs \$5,how much is the pen?

28. ## word problem(algebra)

in 2001,there were g white storks migrating fron europe to africa in winter.The next year, only half of the white storks made the journey to africa.in 2003,the number of migrating white storks decreased by another 45. (a) find the number of white storks

29. ## Math

Trains a and b are travelling in the same direction on parallel tracks. Train a is travelling at 40mph and train b is travelling 48mph.Train a passes a station at 3:10 a.m. If train b passes the same station at 3:40 a.m., at what time willtrain b catcth up

30. ## chemistry

is it possible to find out the quantity of aluminium phosphide from stomach wash of 3 ml

31. ## physics

Initially (at time t = 0) a particle is moving vertically at 5.8 m/s and horizontally at 0 m/s. Its horizontal acceleration is 2.1 m/s2. At what time will the particle be traveling at 54 with respect to the horizontal? The acceleration due to gravity is

32. ## physics

Particle 1 is moving on the x-axis with an acceleration of 5.55 m/s2 in the positive x-direction. Particle 2 is moving on the y-axis with an acceleration of 7.45 m/s2 in the negative y-direction. Both particles were at rest at the origin at t = 0 s. Find

33. ## physics

A charge of 10.104 nC is uniformly distributed along the x-axis from −1 m to 1 m. What is the electric potential (relative to zero at infinity) of the point at 5 m on the x-axis?

34. ## physics

A linear charge of nonuniform density lambda(x)=bx C/m, where b = 5.2 nC/m2, is distributed along the x-axis from 4.9 m to 6 m. Determine the electric potential (relative to zero at infinity) of the point y = 8.6 m on the positive y-axis.

35. ## mis

what is the function of fiber optics communication cable and enterprise software for the it system in a school?

asked by digital city
36. ## maths

In a reference (O, i, j), the points A (-12, 1150) and B (10, -500). The function f is defined on (-20, 10) by: f(x) = x^ 4 +2.25 x^3-44.5x^2-260x+100 We note Cf his(her,its) representative curve. We try to determine all the points of intersection of the

37. ## math

In a reference (O, i, j), the points A (-12, 1150) and B (10, -500). The function f is defined on (-20, 10) by: f(x) = x^ 4 +2.25 x^3-44.5x^2-260x+100 We note Cf his(her,its) representative curve. We try to determine all the points of intersection of the

38. ## maths

1) The first term of arithmetic progression is -20 and the sum of it's term is 250. find it's last term if the number of it's terms is 10 2) Find the fifth term from the arithmetic progression -12, -9, -6 hence find the sum of it's first fifty terms. 3)

asked by Amir khan
39. ## English

I'm finding it difficult to turn sentences (or better speech acts) into indirect speech. Can you please check my sentences (for making arrangements)? Thank you!! Making arrangements 1)“Is it OK if we to meet/if we meet at seven o’clock for dinner?”

40. ## Physics

Hi Would someone be able to confirm that the following equation wil give the fall time for an object falling under gravity ignoring air resistance: T= sq root of 2h/g where h is fall height and g is accel due to local value for gravity. A derivation from a

41. ## math

find the general term of the set. (8,12,16,20,24,...)

asked by old me
42. ## English

Illustration essay: Succesful student In order to be succesful college student must be punctual to class and dedicated to his work. For instance if a student is punctual and comes to class daily : He will be constantly reminded of the upcoming assignments

43. ## chemistry

The formula weight of diethyl ether is 74.0 amu. What is the weight of 4.25 ´ 10 20 molecules of diethyl ether?

44. ## calculus

let f(x) = (x)^(1/2) Compute the difference quotient for f(x)at a=37 and h=33

45. ## physics

A jet travels at 433 m/s. How long does it take to travel 210 m? Answer in units of s How long to travel 12.4 km? Answer in units of s How long to travel 11 in? Answer in units of s thank you

46. ## psych

what are some of the limitations in using the Jungian theory while counseling depressed clients?

47. ## math

graph the points in each group and connect each point with the next point using straight line segments. Do not connect the last point in one group with the first point in the next group.

48. ## Decision Criteria

You have available five different investment strategies and their respective payoffs for various states-of-nature as shown in the chart below. Which investment would you make under the different decision criteria? States of Nature Sever Decline Moderate

49. ## math

The sum of three consecutive integers is 267. What is the largest integer?

50. ## physics

If a race car completes a 3 mi oval track in 50 s, what is its average speed? Did the car accelerate? 1. Yes, the speed changed. 2. No, the speed didn’t change. 3. Yes, the direction of the motion changed.

51. ## physical science

if two lighting volts heat exactly they same place at they same time in are frame of ref.,it is possible that observed in other frames will see the volts heating at diff. time r at diff. places????? explain.

52. ## Algebra

I can't get this problem, could you please help me? Solve each system of equations x+2y=12 3y-4z=25 x+6y+z=20

53. ## science

An object measures 12 x 3 x 2.5 cm and has a density of 0.6 g/cm3. When it is placed in water, what is the volume of the part of the object that is above the surface of the water?

54. ## physics

A car travels along a straight stretch of road. It proceeds for 15 mi at 51 mi/h, then 28.2 mi at 44 mi/h, and finally 36.4 mi at 39.3 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h

55. ## physics

A car travels in a straight line for 4.9 h at a constant speed of 73 km/h . What is its acceleration? Answer in units of m/s2

56. ## chemistry

what volume of 0.1 moldm-3 HCL acid would be required to dissolve 2.3 grams of calcium carbonate equation CaCO3+2HCL----------=CaCl2+CO2+H20 (WATER)

57. ## science

An object measures 12 x 3 x 2.5 cm and has a density of 0.6 g/cm3. When it is placed in water, what is the volume of the part of the object that is above the surface of the water?

58. ## physics

if two lighting volts heat exactly same place at the same time in are frame of ref,it is possible that observes in other frames will see the volts heating at def. time or diff. places? explain

59. ## physics

suppose that all the people of the earth went to the north pole and on a signal all jump straight up. estimate the recoil speed of the earth. the mass of the earth is 6 x 10^24 kg and there are about 6 billion people(6 x 10^9).

60. ## maths

solve the formula for the given variable.Assume all variables as non-negative. A = 5s^2 for s

61. ## Science

Why does a toy car go faster and further when it is added weight onto it and is put on a ramp at 45 degrees?

62. ## Chemistry

How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute. This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am I right

63. ## math

What is the volume of a sphere with a 10 inch radius?

64. ## Chemistry

For the reaction NO2(g) + NO(g) = N2O3(g) If at particular temperature, K was 575 and equilibrium concentration of N2O3(g) was 2.5 M, calculate the equilibrium concentrations of NO2(g) and NO(g) if they both had the same initial concentrations. i have my

65. ## MAth

-4.8 -(-4.9) + 5.7

66. ## health

what is the meaning of the medical term hydrocele?

67. ## science

Is volume the amount of space an object takes up?

68. ## Chemistry

if one mole of gas occupies 22.4L at STP what is the volume at 25 degress C. and 3.05 atmosphere?

69. ## Chemistry

Ok I'm given 38.5 mg as mass. I have to find moles and number of atoms. Am I also converting mg to g? If so please help

70. ## Chemistry

What volume will 12.0 grams fo neon gas occupy at 25 degress C. and a pressure of 0.520atm?

71. ## Chemistry

What volume will 12.0 grams of neon gas occupy at 25 degrees C. and 3.05 atmospheres?

72. ## Gr10 Math

Charlene is looking into cell phone plans. Cell plus gives unlimited minutes for \$50/month.A1 Cell offers a \$40 monthly fee, plus 5¢/min for any time over 300min oer month. a)Define two variables and write a linear equation to represent the charges for

73. ## physics

A project is fire at angale of 45 with x-axis with the K.E 100J what is its K.E energy at maximum height?

74. ## health article

Find article related to teen depression or anxiety

75. ## math

jill has four of her five game scores: 8 6 6 3 her average score for the five games is 6 points. what is the fifth game score? write an equation to help solve the problem.

76. ## health

How to go into indepth about the conductivity of the heart?

77. ## Chemistry

A dragster moves at a speed of 225 miles per hour. Express this speed in nanometers per Microsecond. Ok so I've solved this problem like twenty times, each time adding something into the equation or taking something out and I almost got the correct answer,

78. ## Statistics

You have available five different investment strategies and their respective payoffs for various states-of-nature as shown in the chart below. Which investment would you make under the different decision criteria? States of Nature Sever Decline Moderate

79. ## Math

Jan Gentry is the owner of a small company that pro¬duces electric scissors used to cut fabric. The annual demand is for 9,000 scissors and Jan produces the scissors in batches. On average, Jan can produce 185 scissors per day. Demand for scissors has

80. ## physics

A mass M = 21.00 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, as shown in the figure. If the string makes an angle theta = 28.00 degrees with respect to the vertical, what is the acceleration

81. ## Math

You have available five different investment strategies and their respective payoffs for various states-of-nature as shown in the chart below. Which investment would you make under the different decision criteria? States of Nature Sever Decline Moderate

82. ## Grade 12 english

I have to write a reader response theory on a story, and I'm having a hard time understanding what exactly reader response theory is, could anyone explain? Thanks!

83. ## English

Here are other two speech acts I changed into indirect speech. I'm posting you them separately. Advising 1)“I think you should/ought to see a doctor”, she said. 2)“It seems to me that you should see a doctor”, she said. 3)“I (strongly) advise you

84. ## English

Here is the second speech act. Thank you for your cooperation. I also wanted to know if: A) Would you prefer it if we met at six? has the same meaning as B) Would you prefer to meet at six? Is "it" necessary in sentence number 1? Indirect speech: She asked

85. ## cal

f (t) = radical 5 divided by t^4

86. ## Math

In a class of 50 students, 3x play cricket, 30 play football, 9 play both cricket and football and x plays neither a. Draw a carefully labeled venn diagram to represent the information above b. Determine the number of students who play cricket.

87. ## maths

Draw a triangle ABC with BC=10cm,AB=9cm and A11cm. on your diagram, draw and label the locus of points which are equidistant from B and C

88. ## Chemistry

Confused again ok I have to find the number of atoms in carbon with a mass of 13.5. So this is what I didi. 13.5 / 12.01* 6.022 *10^23= 6.77x10^23 but the correct answer is 6.74x10^23 what have I done wrong

89. ## American Literature

I am doing a paper on The Minority Experience - American Indian Studies. My question would be how far back can any of this information acutually be documented? My professore replied this is fine as long as I make my focus a literay one. He suggest using

90. ## statistics

what sampling technique is used if a quality-control inspector selected every 20th DVD player as it came off an assembly line

91. ## area an perimeter

a parallelogramhas an area of 4yd squared the height is 1yd find the base

92. ## chemestry

What is the molecular formula of the following compound? Empirical formula C3H6O2 (M=74.08 g/mol)

93. ## chemistry

The mass of a single silver atom is 1.79E-22 grams. How many silver atoms would there be in 112 milligrams of silver?

94. ## chemestry

calculate the moles of compound in .540g of ammonium bromide

95. ## chemistry

The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?

96. ## physics

What coefficient of friction is required to stop a hockey puck sliding at 12.3 m/s initially over a distance of 38.7 m?

97. ## math

Linear Programming word problem Full Question: Madison is preparing a wilderness backpacking trip on which she plans to eat a combination of cereals and nuts. The recommended daily requirement is at least 300 calories and 2.4 ounces of protein. Each ounce

98. ## math

identify which property is being illustrated. 15.1=15 5.0=0 11.1/11=1 3+2=2+3 7+-7=0 -9.1=-9 6.1/6=1 -1+1=0 5.6=6.5 (2+3)+5=(3+2)+5 7(8+5)=(8+5).7 (3+2)+5=3+(2+5) 3(9+1)=(3.9)+(3.1) (1+2)(3+4)=(3+4)(1+2) 4(2.6)=(4.2)6 3(5-a)=15-3a

99. ## 6th grade math

Chan drove for X miles at 45 miles an hour, Y miles at 60 miles an hour, and Z miles at 55 miles an hour. Which expression can be used to find the total numbers of hours that Chan drove? A. (45+60+55)(XYZ) B. 45X + 60Y + 55Z C. (45+60+55)/XYZ D. X/45 +

100. ## physics

A 5.6 kg bag of groceries is in equilibrium on an incline of 32. The acceleration of gravity is 9.81 m/s2 . What is the magnitude of the normal force on the bag?

101. ## chemistry

Concentrated HCL acid is 38% by weight of HCL and has a density of 1.19 g/ml. What is the morality of HCL?

102. ## Amoritizing Loans

"A woman borrows \$6000 at 9% compounded monthly, which is to be amortized over 3 years in equal monthly payments. For tax purposes, she needs to known the amount of interest paid during each year of the loan. Find the interest paid during the first year,

103. ## US history

View of himself : He saw him self as a man who has risen from the bottom to the top with self determination despite of his financial problems. Describe his character : Nixon was a very insecure and paranoid president, because of his past low stature he

104. ## Math

In a group of 40 students, all students study maths, 28 study biology and math, 20 students study geography and maths and x students study all three subjects. a. Draw a venn diagram to represent the information above, showing in terms of x, the number of

105. ## social studies

i have a project to do on entrepreneur activity.I have to create a product that people will want to but during the time period of 1400-1600. And create a product product that someone would want to invest in to a joint-stock company. I want to used a

106. ## psychology

The study of sensation and perception is important to a psychologist because perception and sensation are the foundation of: neurotransmitters and the brain's function. memory and how it is experienced in the world. the science of neuropsychology.

107. ## s.c.

is it a good ideal to use a resturant.

108. ## scicence

the mass of a rock is 15.0 g and its volume is 3ml what is the density?

109. ## s.s

what should i used.

110. ## physics

a roller coster goes from 43 yards per hour to a stop in the station.it took 4.5 seconds to stop.what was the acceleration? (1yd=0.9144m)

111. ## US history

View of himself : He saw him self as a man who has risen from the bottom to the top with self determination despite of his financial problems. Describe his character : Nixon was a very insecure and paranoid president, because of his past low stature he

112. ## physics

abe left his house at 10:14 and goes north 14.0 kilometers to school then and south 70.6 kilometers to the candy store,arriving at 10:57.what are his displacement,total distance,average velocity?

113. ## physics

superman flies to a meteor traveling at 440km/hr.superman slows it down at a rate of -24.8m/s^2.how long before the man of steel stops the meteor?how far did he travel with the meteor?

114. ## Media Writing

How do you correctly write the following in AP style? "Guilty Verdict. A jury found a Midville man guilty of Second-Degree Manslaughter after an hour's worth of deliberations on Tuesday. Johnny Gene Garber was convicted at the end of a 3-day trial which

115. ## physics

jeff gordan traveled around a 1.5 mile track 300 times just bcause he felt like it.it took him 6.14 hours to complete the 300 laps.what was his total distance traveled?(1 mile=1.6093km)

116. ## English

I included other speech acts. Thank you. 1)“How would you like to go to the zoo?”, he said. “I’d love/like to”. “That sounds great”. 2)“Would you like to go to the zoo?”/”Do you want to go to the zoo?” “I’d love to, but I

117. ## physics

a bowler releases her bowling ball at 425.36 cm/s.it decelerates towards the pins at -4.8 cm/s^2.the length of a bowling alley is 60ft.what velocity did the ball hit the pins and how long did it take to get there?

118. ## English

I included other sentences I turned into indirect speech. Where can I find exercises on the use of indirect speech so that I don't have to invent all the sentences myself? Thank you. 1) Why don’t we go for a walk? She suggested going for a walk. 2)I gave

119. ## social studies

Humans rely most heavily on the sense of __________, because evolution designed us to be more active during the daytime than at night. A-taste B-touch C-hearing D-sight

120. ## physics

two mice are racing to a hunk of cheese.mouse a was between mouse b and the cheese.mouse a started 8.68 meters from mouse b, but "x"meters away from the cheese.both mice traveled at the same velocity,which were 1.43 m/s and started at the same time.it took

121. ## s.s.

entrepreneur activity during the period 1400-1600.

122. ## chemistry

Please explain me which solution reacts faster to breakdown the materials the 25% or 10% HCL?

123. ## physics

Two points in a plane have polar coordinates (2.40 m, 40.0°) and (3.50 m, 110.0°). (a) Determine the Cartesian coordinates of these points. (2.40 m, 40.0°) x = m y = m (3.50 m, 110.0°) x = m y = m (b) Determine the distance between them. m

124. ## social studies

The study of sensation and perception is important to a psychologist because perception and sensation are the foundation of: A-neurotransmitters and the brain's function. B-memory and how it is experienced in the world. C-the science of neuropsychology.

125. ## Algebra 1 (HELP PLEASE!!)

Can you please tell me the roster form and set-builder notation for: N is the set of real numbers that are factors of 12

126. ## Math

Doug hop must shovel a pile containing 50 ft squared of sand into a dump truck. With each scoop, he decreases the size of the pile by 16 ft squad. Let x be the of scoop he has shoveled. How much sand is left after 100 scoops? I know the expressionbid 50 -

asked by plz help
127. ## Chemistry

Plot data, preform interpolations or extrapolations, determine slope of best line, determine y intercept. Write equation of the line. T in Kelvins40.0 70.0 100.0 120.0 0 V in ml 250.0 430.0 610.0 730.0 0 Value of V at T= 50.0? Value of T when V= 800.0?

128. ## math

use intermediate value theorem to show f(x) has a zero f(x)= x^5 - 4x^4- 7x^2 - 6x; [-0.7, -0.6]

129. ## math

use intermediate value theorem to show f(x) has a zero f(x)= x^5 - 4x^4- 7x^2 - 6x; [-0.7, -0.6]

130. ## math

find the product or quotient. write the strategy you used, write model, break apart, multiplication table, inverse operations, pattern, or doubles

131. ## Sociology

11{1[1(19)19]}> All sages provide both wisdom and inspiration. Since Dasha’s speech contained wisdom and greatly inspired her audience, Dasha is a sage. Which one of the following points out the flaw in the argument above?

132. ## Math

Is 0 an even natural number?

133. ## Physics

The position vector for an electron r is = (7.8 m)i - (2.6 m)j + (6.9 m)k. Find the magnitude of r.

134. ## calculus

Find the volume of the solid obtained by rotating the region under the graph f(x) = x2 - 3x about the x-axis over the interval [0, 3].

135. ## Physics

The position vector r of a particle moving in an xy plane is given by [r = (6t^3-3t)i + (4-1t^4)j] with r in meters and t in seconds. What is the angle between the positive direction of the x axis and a line tangent to the particle's path at t = 3 s? Give

136. ## Physics

A boy pulls a sled with a force of 40 N on a rope 2.5 meters long. The end that he holds is 1.5 meters higher than the end attached to the sled. What is the magnitude of the horizontal component that acts to pull the sled forward? (First find the angle of

137. ## Physics

A dart is thrown horizontally with an initial speed of 11 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ? (b) How far away from the dart board is the dart

138. ## Physics

At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 57 m horizontally and h = 73 m vertically above the launch point. At the instant it reaches its maximum height above ground level, what is its horizontal

139. ## statistics

If there are 24 students in a class, how many different-sized groups can be formed, and how many students will be in each group? Make a list of all possible groupings.

140. ## Calculus

I think I have the correct answers for the following problems. For anyone who has the time I would appreciate it if you could tell me if I am correct/incorrect. Thank you. 1). Differentiate ã(x)sin x = (2xcosx+sinx)/2ã(x) 2). Differentiate 2t/(4+t^2)

141. ## business communication

which of the following is not something to check during a thorough revision?

142. ## Math

Can anyone answer: "R is the set with even natural numbers that are less than 2" in roster and set builder form

143. ## physics

Two particles are at the same point at the same time, moving in the same direction. Par- ticle A has an initial velocity of 9 m/s and an acceleration of 2.7 m/s2. Particle B has an initial velocity of 2.9 m/s and an acceleration of 4.2 m/s2. At what time

144. ## chemistry

What is the density of air if a 5000ml sample has a mass of 0.125?

asked by eliza Higgins
145. ## physics

A wooden crate weighs 780lb.What force is needed to start the crate sliding on a wooden floor when the coefficient of starting friction is 0.40?

146. ## English

what is the rhetorical strategy used in this parapgraph and what is the effect/function. Please quote the sentence of where the rhetorical strategy is used. Paragraph: If a Mongolian restaurant seems exotic to us in Evanston, Ill., it only follows that a

147. ## Physical Science

A charge of +2 X 10^-7 C is 10 cm from a charge of -6 X 10^-6 C. Find the magnitude and direction of the force of each charge.

148. ## chemisty

What volume of silver will weigh exactly 25.0g? The density of silver is 10.5g/ml.

asked by eliza Higgins
149. ## Chemistry

Oxygen is 36.8% of a compound. What is the mass in grams of a sample of the compound that contains 21.8 g of oxygen?

150. ## Algebra

find any intercepts then graph the linear equation -x+3y=9

151. ## Physical science

Why is zinc added to gold cyanide

152. ## psychology

Perceptual illusions occur when our brain misinterprets sensory information or because of sensory: A) overload. B) adaptation. C) deprivation. D) patterns.

153. ## PHYSICS

A crate of potatoes of mass 23.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.65 and μk = 0.44. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. Please help

154. ## chemistry

What is the density of air if a 5000ml sample has a mass of 0.125?

asked by eliza Higgins
155. ## Microeconomics

Applying the concepts. 1.What is the break-even price? 2.How do entry costs affect the number of firms in the market? 3.Does volentary pricing work? 4.What type of consumers pay relatively high prices? 5.What are the effects of market entry? 6.What does it

156. ## south lewis

when water and ice are mixed the temperature of the mixture is 0 degrees Celsius. When methyl alcohol and ice are mixed a temperature of -10 degrees is obtained. Why is there such a difference?

157. ## math

x^(2ln(x)-1) +e^1/9=(1+e^1/9) *x^(ln9x)-0.5)

158. ## Math

100 students were asked whether they are taking psychology or biology. 61 were taking pyschology, 18 were taking both and 12 were taking neither. how many were taking biology?

159. ## Physics

A spectrometer uses a grating with 11600 lines/cm. Find the angle at which red light, 632.3 nm, has the first-order bright band. Answer in units of degrees.

160. ## Calculus 2

The question is: Evaluate the improper integral for a>0. The integral is: the integral from 0 to infinity, of e^(-y/a)dy Can anyone help me solve this? When I try I get 'a', which apparently is incorrect. Thank you!

161. ## Physical Science

A charge of +2 X 10^-7 C is 10 cm from a charge of -6 X 10^-6 C. Find the magnitude and direction of the force of each charge. Could someone help me with this problem. I don't know what to do.

162. ## Help Please

1.Lynn's teacher likes to give lectures and rarely uses the overhead or challenges to illustrate her points. Lynn is struggling in the teacher's class. What is least likely lynn's preferred style of learning? A. auditory B. Kinesthetic C. Visual D. Musical

163. ## Physical Science

Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the substance have very different melting temperatures and densities. The unknown substance is

164. ## Math

(1/25)^1/2 i know the answer is 0.02 but how do you find it in a fraction without using a calc?

165. ## precalculus

use remainder therem to find the remainder when f(x) is divided by x+2 then use factor to determine whether x +2 is a factor f(x) = x^6 + 2x^5 + 3x^2 - 2x - 16

166. ## Physics

A concave mirror has a focal length of 37 cm. Determine the object position for which the resulting image is upright and four times the size of the object. Answer in units of cm

167. ## Physics

The fastest major league pitcher throws a ball at 45m/s. If he throws the ball horizontally, how far does it drops vertically on the 18.4m trip to the home plate?

168. ## Science

How is it possible that the gravel, for example, in a sedimentary rock consists of pieces of both igneous and metamorphic rocks?

169. ## algebra

a purse contains 26 coins, some of which are dimes and the rest are nickels. Altogether, the coins are worth more than \$2.10. At least how many dimes are in the purse?

170. ## General-English

Is the change in trade name of a material considered a "like-for-like" change?

171. ## physics

An electron travels 3.75 m in 6.41 × 10−8 s. How fast does it travel? Answer in units of cm/s

172. ## Physics

For a 1.1 km radious cylinder, find the time for one revolution if "gravity" at the surface is to be 9/8m/s^2. I changed 1.1km= 1100m Then I used the equation a=v^2/r to calculate the velocity. the square root of: 1100 x 9.8= 103m/s I guess my confusion is

173. ## economics

in economics a price is made up of what two things?

174. ## statistics

Will the sampling distribution of means be approximately normal if n=25 or so, even if the frequency distribution of X values is not normal?

175. ## physics

Problem 22.2 2 *10^13 electrons flow through a transistor in 1.0ms . Part A - What is the current through the transistor? Express your answer using two significant figures. in mA

176. ## pre calculus

use given info about a polynomial whose coefficients are real numbers to find the remaining zeros. Degree: 6 so I know there's at least 6 zeros:-5-isqrt7, 13 + 2ni, -5 - 3i (where n is a real number) any ideas??????

177. ## english

hey i really need help in this plzzzzz Each of the following exercises shows the original source, and then a student’s sentence and/or citation about that source. Each sentence and each citation has at least one thing wrong with it (most have more than

178. ## Math

Tonia deposited a total of \$174.52 into her checking account. She also withdrew a total of \$186.15. Use addition to find the net change in Tonia’s checking account.

179. ## physics

You accidentally throw your car keys horizontally at 9.0 m/s from a cliff 72 m high. How far from the base of the cliff should you look for the keys?

180. ## help please!

All the following are effective techniques for a kinesthetic learner EXCEPT: A.Study while participating in a physical activity. B.Have someone quiz you orally. C.use experiments to learn the material. D.building a model. i got C what do you think ?

181. ## Physics

Problem 22.16 A 7.5 v battery supplies a 3.5 mA current to a circuit for 8.2 Hr . Part A - How much charge has been transferred from the negative to the positive terminal? Express your answer using two significant figures. Part B - How much work has been

182. ## geometry

Martin drew a pair of perpendicular lines and a pair of parallel lines. Which of these statements best compares the pairs of perpendicular and parallel lines? Answer A: Perpendicular and parallel lines always have a common endpoint. B: Perpendicular and

183. ## his/115

Write a 150- to 200-word summary explaining how the existence of the Confederate government played a role in the development of the current Constitution. Use some of the points you included in your table to support your explanation.

184. ## English

Thank you very much. Could you please check these sentence, too? 1)"I'll buy you lunch", said Mark . Mark promised to buy me lunch. Mark promised (that) he would buy me lunch. 2) 'You must see a doctor.' John insisted that I saw a doctor. John demanded

185. ## Life Direction

Life Direction has three parts: vision, setting goals and a plan of action. Provide a brief description of each three and discuss their importance.

186. ## world religion-movie questions

Why was the neighbour called the city of joy in the movie''the city of joy''. pls help

187. ## geometry

Lara wrote the statements shown in the chart. Statement One: If two lines intersect, then they intersect at exactly one point Statement Two: In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the length of

188. ## math

X=e^(6)(.075) how would u solve that the answer is x=1.5683, however i keep getting 30.257

189. ## chemistry

Analysis of a compound shows carbon hydrogen and nitrogen present. Each molecule contains one nitrogen atom. A 150. Mg sample of the compound produces 27.4 mg of NH3 in which all the nitrogen comes from the sample. Which of the following is the formula for

190. ## Chemistry

The speed of light is = 3x10^8 m/s. How long w ill it take to reach Pluto, 278,000,000,000 km away? This is how I solved it: 3x10^8m/s x 1km/1000m x 1/2.78x10^11 km I keep getting the wrong answer. I am not sure if this is how you set this conversion??

191. ## physics/ 2D motion

A projectile of mass 0.539 kg is shot from a cannon. The end of the cannon’s barrel is at height 6.4 m, as shown in the figure. The initial velocity of the projectile is 9 m/s . How long does it take the projectile to hit the ground? Answer in units of s

192. ## English

I forgot to include these sentences. Can suggest be followed both by the "subjunctive" and "should"? Thank you. 1)“I suggest/recommend that you should see a doctor." OR that you see a doctor. Reported speech: He suggested/recommended that I should see a

193. ## Algebra & Trigonometry

A slice of thickness 1 cm is cut off from one side of a cube. If the volume of the remaining figure is 180 cubic centimeter, how ling is the edge of the original cube

asked by Ruth Joy
194. ## pre calc

A math teacher uses four algebra books, two geometry books, and three pre-calculus books for reference. In how many ways can the teacher arrange the books on the shelf if books coiver the same subject matter are kept together?

195. ## English

I'm reposting you the questions again. Thank you. 1)"I'll buy you lunch, "said Mark. Mark promised to buy me lunch. Mark promised (that) he would buy me lunch. 2) "You must see a doctor." John insisted that I saw a doctor. John demanded that I saw a

196. ## displaying data

The data shown estimate the number of flea eggs produced over a period of days. Day No. of Eggs 1 436 2 495 3 575 4 444 5 754 6 915 7 945 8 655 9 782 10 704 11 590 12 411 13 547 14 584 Day No. of Eggs 15 550 16 487 17 585 18 549 19 475 20 435 21 523 22 390

197. ## Math

A ten-pin bowling ball has a volume of about 5274 cm3. A candlepin (8) bowling ball has a volume of about 48 in3. About how much greater is the volume of a ten-pin bowling ball than the volume of a candlepin bowling ball?

198. ## General-English

Posted by angie on Sunday, September 25, 2011 at 4:48pm. Is the change in trade name of a material considered a "like-for-like" change? General-English - Ms. Sue, Sunday, September 25, 2011 at 4:52pm Please explain what you mean by a "like-for-like" change

199. ## physics

By considering the nergy time uncertainity principle, estimate the range of the weak nuclear interaction at low energies. compare this range to the size of a typical nucleon for exapme a proton and therefore explain why the weak nuclear interaction between

200. ## Chemistry

Ok I think I'm gettingvit I hope, I need to check my work. Given 0.0449 mols Pt Find mass 0.0449 mol Pt x 195.08/1 =8.76g Pt Am I right

201. ## help please

sarah sets aside time every night to read some pages in her history book. She schedules a break into her study time. why is this not an effective study plan ? A. The task is irrelevant to her priorties. B. The task is not realistic for the time she has set

202. ## MAth

Ida plans to construct a square showing exact measurements of the sides. Which combination of tools would best help Ida construct the square? Answer A: pencil, compass, and straightedge B: pencil, string, and compass C: pencil, ruler, and straightedge D:

203. ## math

Emily takes a trip, driving with a constant velocity of 79.5 km/h to the north except for a 22 min rest stop. If Emily's average velocity is 68.8 km/h to the north, how long does the trip take?

204. ## Math

3 ^ (y+7) = 8 find y..i know you have to change 3 & 8 to the same thing so you can cancel them out and bring the exponents down but i don't know what you have to multiply it by.

starbucks changed the name of some of its coffehouses to connote a different personality to customers. True or False?

206. ## College Chemistry

One liter of benzene (C6H6) is completely burned (oxidized) with air. Write a balanced chemical equation to represent this reaction.

207. ## Physics

During a lawnmower race, a rider starts from rest and accelerates at 1 m/s/s for 10 seconds. The rider then maintains a constant velocity for the remainder of the race, which takes an additional 20 seconds. A) How far was the race? B) What was the

208. ## english

which one is correct. a)the temperature was 104 degrees and Eric's car was not equipped with airconditioning grammar or b)the temperature was 104 degrees, and Eric's car was not equipped with airconditioning grammar

209. ## physics

a projectile is fired from the surface of the earth with a speed of 200 m/s at an angle of 30 degrees above the horizontal. If the ground is level, what is the maximum height reached by the projectile

angle 3=3x+9

211. ## chemistry

A solution is made by dissolving 21.5 grams of glucose (C6H12O6) in 255 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m?

212. ## Finance

Joeli deposited \$1000 on 1 January 2011 in an account paying interest of 12% p.a compounded quarterly. He also deposited \$800 (on 1 January 2011) in another account which pays 15% p.a. effective interest. Find the time (n) when the two accounts will be

213. ## Finance

Joseph has just retired and is trying to decide between two retirement income option as to where he would place his life savings. Fund A will pay him quarterly payments for 25years starting at \$1000 at the end of the first quarter. Fund A will increase his

214. ## Physics

Can you explain how to figure this out? A helicoptor accelerates at a rate of 2m/s^2. If you drop a rock out of the helicoptor 3 seconds after takeoff how high is the helicoptor when the rock hits the ground. Thanks

215. ## Finance

A man stipulates in his will that \$50000 from his estate is to be placed in a fund from which his three children are to each receive the same amount when they reach age 21. When the man dies (on January 2010), the children are aged 19, 15 and 13. The fund

216. ## Help please

Tom has difficulty battling distractions while studying. Which of the following strategies would help him with this problems? A. Taking notes to keep him focused. B. Improving his studying environment. C. Adding positive messages to his study area. D. both

217. ## statistics

If 86% of households have cable television and three households are picked at random, what is the probability that at least one of those three picked will have cable television?

218. ## english

separate the sentence with a line between the complete subject and the complete predicate Three-fourths of the earth / is covered by water, and most of it is salty ocean water. is the line in this simple sentence correct?? THANKS

219. ## math

write down four odd digits that summ up to 19.

220. ## Chemistry

Some solid calcium oxide in a test tube picks up water vapor from the surrounding to change completely into solid calcium hydroxide. An observed total initial weight (calcium oxide + test tube) f 10.860g goes eventually to 11.149g. What is the weight of

221. ## Math

A city has a population of 30,000 people. Suppose that each year the population grows by 3.7% . What will the population be after 6 years? i multiplied 30,000 by 6 then 3.7 and got 7425000 i don't think that's the answer i feel like im missing a step..

222. ## Physics

I know a steady force produces a steadily increasing velocity and a constant acceleration. But what happens when you increase the force by doubling or tripling it? I think the acceleration would follow force changes but what about velocity?

223. ## English

Could you check these other sentences, too? Thank you. 1) She proposed renting a house in the mountains. 2) She proposed that I rented a house in the mountains. 3) She said the banks must be closed. 4) “You must finish this homework for tomorrow.” She

224. ## Chemistry

When aqueous CuSO4 is added to aqueous Na2S2O3, why is there no reaction?

225. ## physics

A small fish is dropped by a pelican that is rising steadily at 0.63 m/s. After 2.5 s, what is the velocity of the fish? The acceleration of gravity is 9.81 m/s2. Answer in units of m/s

226. ## help please

Renne has a research paper due in three days. She has set aside two hours to complete this task, What is wrong with this study goal ? A.it is not significant and cant be rewarded. B. The goal is not concrete and specific. C. The time she has alloted is not

227. ## help please

Renne has a research paper due in three days. She has set aside two hours to complete this task, What is wrong with this study goal ? A.it is not significant and cant be rewarded. B. The goal is not concrete and specific. C. The time she has alloted is not

228. ## math

Fraction simplest 12 over 210

229. ## Physics

A youngster bounces straight up and down on a trampoline. Suppose she doubles her initial speed from 2.0 m/s to 4.0 m/s. (a) By what factor does her time in the air increase? (b) By what factor does her maximum height increase? (c) Verify your answer to

asked by Nyla (really desperate)
230. ## Science help please

My homework asks of me to write a sentence for each word reflecting the scientific meaning and showing how I understand what the word means. I am so puzzled and stuck. I have figured out the definition for the words, but I don't know how to write the

231. ## help please

Disscussing concepts with others as a way of learning a concept would be an effective study techniques for which of the following learning modalities? A. Visual B. Kinesthetic C. Auditory D. All of the learning styles i got A what do you think ?

232. ## physics

A rocket-driven sled running on a straight, level track has been used to study the physiological eﬀects of large accelerations on astronauts. One such sled can attain a speed of 440 m/s in 1.9 s starting from rest. What is the acceleration of the sled,

233. ## statistics

For a population with µ = 70 and ó = 20, find the z-score that corresponds to each of the following X-values

234. ## geometry

find the distance points of each pair of points 12.G(0,0),H(-3,4) 13.N(5,2),K(-2,8) 14.A(-4,-4),W(-2,2)

235. ## physics

A bus slows down uniformly from 65.0 km/h to 0 km/h in 20.0 s. How far does it travel before stopping? Answer in units of m

236. ## math

A model of a brdge is 1m long and 2.5% of the actual size of the bridge. How long is the actual bridge?

237. ## physics

a speeder is going at a constant speed of 20m/s when a police car accelerates from rest at a rate of 4.5,/ssquared to catch them. How long did it take for the officer to reach the speeding car?

238. ## help please

Which of the following are positive results of using new study techniques ? A. Learning new materials will become easier. B. You will retain more of what you learn. C. You gain power and responsibility over your learning. D.All of the above . i got C what

239. ## College Algebra

Matt scored 75 on the calculus midterm. If the final exam counts twice as much as the midterm exam, then for wht range of scores on the final would Matt get an average between 81 and 92?

4

241. ## sociality

what are the dimentions of cultural diversity?

242. ## help please

When trying new study techniques that appeal to your strongest learning style, you should expect which of the following ? A. I t will be challengiing at first it is new. B.You will see instant results C. learning will become more enjoyable and rewarding D.

243. ## help please

In studing, reading, and listening , using the information you have learned in some way is important because: A. It helps you to retain the information . B. The information becomes relevant to you. C. You will most likely remember the information. D. All

244. ## Geometry

Which statement describes the similarity between sketches and drawings? A: Both sketches and drawings are made freehand. B: Both sketches and drawings do not require a compass. C: Both sketches and drawings do not need drawing tools like a pencil. D: Both

245. ## pre calculus

find the x and y intercepts of f(x) = x^2 -16/ x^2 - 4 obtain additional points ?

A crate of potatoes of mass 23.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.65 and μk = 0.44. Find the frictional force (magnitude and direction) on the crate if the crate is at rest.

247. ## Physics

Two cars are traveling along a straight line in the same direction, the lead car at 22 m/s and the other car at 34 m/s. At the moment the cars are 59 m apart, the lead driver applies the brakes, causing the car to have a deceleration of 1.5 m/s 2 . How

248. ## Chemistry

How do I find the equilibrium constant for 4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(g) at 825 degrees celcius, assuming that delta H and delta S knot do not depend on temperature, and Delta H is -908 KJ and Delta S is 1206 KJ?

249. ## how to write a journal

how to write a effected journal

250. ## pre calculus

Ok not sure if it's just me with a block solve the following equation in the real number system. x^4 +3x^3 + 3x^2 + 21x - 28 = 0

251. ## help please

The pattern of the following that is strongest is called : A. learning modality B. intelligence activity C. learning style D. both A&C i got c what do you think ?

252. ## physics

A car is parked near a cliﬀ overlooking the ocean on an incline that makes an angle of 21.7◦ with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline and has a

253. ## science

a car exerts tractive force, calculate the force available for acceleration

254. ## Chemistry

Given 2.05 mol Hg find mass Hg 2.05 mol Hg x 200.59g Hg / 1 mol Hg =411g Hg My question is would my answer be wrong if I put it in scientific notation 4.11E2

255. ## chemistry

how to you find the partition coefficient of the benzoic acid in CH2Cl2 in water

solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

259. ## math

In new jersey's pick 4 lottery game, you pay 50 cents to select a sequence of four digits, such as 1332. if you select the same sequence of four digits that are drawn, you win and collect \$2788. 1. Find the expected value?

260. ## english

need help writing a poem about facing challenges

261. ## Biophysics

a person is standing with there feet 0.1m apart and length from shoulders to feet(pivot point) is 1.5m what is the minimal coefficient of static friction required so that the frictional force is at least 1.5 x as large as the external force toppling the

262. ## tx, history

give three examples of how humans effect geography.

263. ## Logic

The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jery mist be taller than six feet. The argument abv. if flaw because it confuses -Jerry with other members of the

264. ## Chemistry

Calculate Delta G for H2O(g) + 1/2 O2(g) H2O2(g) at 600. K using the following data: H2(g) + O2(g) H2O2(g) k = 2.3 X 10^6 at 600. K 2H2(g) + O2(g) 2H2O(g) k = 1.8 X 10^37 at 600. K

265. ## physics

The surface area and the average depth of the Pacific Ocean are 1.8 x 10 8 km 2 and 3.9 x 10 3 m, respectively. Calculate the volume of water in the ocean in liters.

266. ## math

Describe a pattern you could use to complete the following grid and then complete it. 0.35, , , , , 0.95

267. ## math

Iam a 2 digit #.Both of my Digits are even My ten digit is 8 more than my ones digit. What # am I?

268. ## Logic Research

Mrs. Orlof teaches two history classes, one in th morning and one in the afternoon. Yesterday she gave the same test to both classes. Anyone who failed the test must take a retest. Since a greater percentage of students who took the morning test failed the

269. ## physics

A 34.3-kg child swings on a rope with a length of 6.11 m that is hanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?

270. ## Biology-- cells

Explain why stomach cells have a large quantity of ribosomes and golgi apparatus ?

asked by Mr. Green
271. ## psychology

I have to define organizational psychology and the difference in general psychology. Let me know if I am correct and where I could find more information please. Organizational Psychology studies the behaviors of people in a formal organizations. While

272. ## physics

A set of crash tests consists of running a test car, moving at a speed of 12.80 m/s into a solid wall. Strapped securely in an advanced seat belt system, a 63.00 kg dummy is found to move a distance of 0.690 m from the moment the car touches the wall until

273. ## english

need help writing a poem about facing challenges

274. ## Logic Research

A new campaign finance reform bill being considered by Congress would limit the amount of campaign contributions that political candidates can receive. However, a survey of candidates runing for mayor, governor, and senate seats shows that not one of them

275. ## Logic Research

All sages provide both wisdom and inspiration. Since Dasha's speech contained wisdom and greatly inspired her audience, Dasha is a sage. Which one of the following points out the flaw in the argument above? -Just because Dasha is a sage doesn't mean that

276. ## Physics

Problem 22.2 2*10^ 13 electrons flow through a transistor in 1.0 ms. Part A - What is the current through the transistor? Express your answer using two significant figures. in mA

277. ## Physics

Problem 22.2 2*10^ 13 electrons flow through a transistor in 1.0 ms. Part A - What is the current through the transistor? Express your answer using two significant figures. in mA

278. ## Calculus--Pythagorean Theorem

Use the Pythaogorean Theorem to determine the exact length of AB. Express the answer as A) an exact value in simplest mixed radical form B) A decimal to the nearest hundredth The picture is right here, I uploaded it of the diagram. h t t p : //imageshack .

279. ## calculus

How would you solve by completing the square? 3x^2 + X - 1/2= 0

280. ## AP Physics

Light passes from air into water at an angle of incidence of 33.5.degrees Find the angle of refraction in the water. Answer in units of degrees

281. ## Book Summary

In the book: "A Tale of Two Cities"; in book one chapter one "The Period". What is that chapter taliking about it is really confusing. You don't really meet any characters yet. HELP PLEASE!

282. ## Grade 12 Data Management

A baseball player has had 14 hits in 60 times at bat in the last 20 games. How many hits does the batter need in her next ten at bats to increase the probability of her getting a hit to 0.300?

283. ## ALGEBRA2

HAS THE CONTENT in this course allowed you to think of math as a useful tool? if so how? what concepts investigated in this course can apply to your personal and professional life? in what ways did you use my mathlab for extra support?

284. ## physics

How far to the nearest tenth of a meter can a runner running at 10 m/s run in the time it takes a rock to fall from rest 91 meters

285. ## Geometry

Find the distance between point R (5,6) and point S (-2,0). Round your answer to the nearest tenth.

286. ## Chemistry

Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron. Fe2O3 I really can't figure this one out please help step by step

287. ## essay

can someone critique my short college admission essay and if so how do I submit it

288. ## 4th grade social study

Please HELP! what is the relative location of virginia? Thanks.

289. ## Algebra 1

The probability of rolling a die and getting an even number is 1/2. If you roll the die twice, the probability of getting a even number both times is (1/2)(1/2) or (1/2)^2. Write an expression to represent the probability of rolling the die (d) times and

290. ## math

if you walk for m minutes, the number c of calories used is proportional to the time you walk. if 30 caloris are used when you walk for 12 minutes, write an equation of variation and find the number of calories used when you walk for an hour

291. ## Physics

The lowest pressure attainable using the best available techniques is about 10^-12 N/m^2. At such pressure, how many molecules are there per cm^3 at 0 degrees C. I know that PV= nRT and that you solve for n/v = P/RT. I have also converted from N/m^2 to atm

292. ## geography

if it is 6pm @ 45 degree east what time will it be at 60 degree west?

293. ## Writing

I need help with unscrambling this sentence - a the absorbs upper rays uv beneficial of layer atmosphere, ozone

294. ## help please

The pattern of learning that is strongest is called : A.learning modality B.intelligence activity C.learning style D.both a&c I got c what do you think?

295. ## Algebra

2/5x^4-23x^2+1/15 x^4+5x^2-5 Simplify each expression.

y2/3

297. ## geography

hi ms sue! how do i show the calculation i am doing longitude and time?

298. ## Chemistry

Calculate the empirical formula for the compound 1.245g Ni, 5.381g I Can you help with the steps please

299. ## help please

What is the purpose of study reading ? A. comprehend information B.Absorb and retain the information C.retain information in the long-term memory. D.Both b&c. i got b what do you think?

300. ## College Algebra 2

The number of kilograms of water in the human body varies dirctly as the mass of the body. An 84-kg person contains 64-kg of water. How many kg of water is in a 63-kg person?

301. ## science

what is the ratio of 54 colored m&M's with 8 of them being green and 9 of them being blue. Need answer on how you come up with answer

302. ## Geometry

a rectangle has an area of (2x^2 +12), a length of 9x+1) and a width of (3x-6). what is the value of x?

303. ## College Algebra 2

To determine the number of deer in a game preserve, a conservationist catches 810 deer, tags them and lets them loose. Later 684 deer are caught; 171 of them are caught. How many deer are in the preserve?

304. ## chem

calculate standard heats THE following REACTION : (H3C)3COH+HBr-----> (H3C)3CBr+H20

305. ## Chemistry

how many valence electrons does a carbon radical possess?

306. ## statistics

draw a negatively skewed result

307. ## physics

a cat walking at 0.25 m/s sees a mouse and accelerates uniformly at 0.40 m/s (squared) for 3.0 s. what is the cat's displacement during this time?

308. ## Physics

Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 326 N, is applied at an angle α = 40° to the forward dashed line. The second force, F2 = 488 N, is applied at an angle β = 8° to the forward dashed line. a. What is

309. ## math

1 cubic yard equal how many cubic foot

310. ## math

A garbage can is in the shape of a rectangular prism. The area of the base of the garbage can is 480 square inches. The height of the garbage can is 30 inches. (Part A) how many cubic inches of space are inside this garbage can? (Part B) Explain how you

311. ## Pre calculus

find the domain of the given function f(x)=square root 9-x

312. ## math

3/m^2-2m+2m-1/m^2-8

313. ## chemistry

if 100j of heat energy is applied to a 25-g sample of mercury, by how many degrees will the temperature of the sample of mercury increase?

314. ## calculus

give an example of a function that has: a) only one point of discontinuity b) exactly two ponts of discontinuity c) an infinite number of discontinuity give an example of a function that is: a) continuous at every point b) discontinous at every point i am

315. ## College Algebra 2

To determine the number of deer in a game preserve, a conservationist catches 810 deer, tags them and lets them loose. Later 684 deer are caught; 171 of them are tagged. How many deer are in the preserve?

316. ## help please:)

In the SQR3 method, the three R's stand for all of the following EXCEPT: A. read B. recite C .revive D. review i got C what do you think?

317. ## College Algebra 2

The speed of train A is 16 mph slower than train B. Train A travels 190 mph in the same time it takes train B to travel 270 miles. Find the speed of each train.

318. ## engineering physics

An object of mass m is dropped at t=0 from the roof of a building of hdight h. A wind blowing parallel to the face of the building exerts a constant force F on the object. At what time t does the object strike the ground? Express t in terms of g and h.

319. ## Chemistry

In the following reaction, it 13g of sodium are reacted how many grams of copper(solid) can be obtained? 2Na(s)+ Cu(NO3) 2 - - > 2NaNO3 + Cu(s)

320. ## help please:)

) What should you do before you begin reading? A. review the introduction and conclusion B. Ask youself question about what lies ahead C. study graphic aids D. both A&B I got D what do you think?

321. ## help please:)

reading titles and headings, and trying to get an overview of what lies ahead in a reading passage is called : A. questioning. B. relating C. surveying D. reciting. I got C what do you think ?

322. ## marketing

You have been asked to create a project plan paper based on research and the project management skills you have mastered in this course. Specifically, your paper will address a plan for the operations of a sole proprietorship business in a service or

323. ## Chemistry

Caffeine a stimulant found in coffee has the mass composition of C, 49.48%, H, 5.19%, N, 28.85%, O 16.48%. The molar mass of caffeine is 194.19g/mol. Find the molecular formula for caffeine.

One of the methods used to train astronauts for the effects of "zero gravity" in space is to put them in a specially equipped plane which has been stripped of seats and fitted with padded walls. The pilot then takes the plane up to an altitude of typically

325. ## help please

SQR3 is a method used to : A.increase speed B.improve comprehension C.improve reading skills. D.both B&C I got D what do you think?

326. ## chemistry

How many grams of water should you add to 33.0 of sucrose, , to get a 0.795 solution?

327. ## geometry

suppose m is b/t L and N. LM=4x+8, MN=9x-4, LN=82. what is x?

328. ## Chemistry

I am having a hard time solving this problem. The formula given is: T=Tin - (Tin - Tinit.)e(-v/v)t If the initial temperature Tinit is 115 (degrees F), the cold water temperature is 35 (degrees F) (1.7 degrees C), and the volume and volumetric flow rate

329. ## Marketing

what is an example of a primary data source? A. Cost data B. A marketing information system C. Company files D. Website analysis I was thinking website analysis but, really not sure.

330. ## help please:)

All of the following statements about skimming are true EXCEPT: A. skimming is not an effective techniques for retaining information . B. it does not require attentive reading C. skimming is an effective techniques for identifying the main idea D. Most of

331. ## Math

Let f(x) = 3x. Find f( 2).

332. ## Comp 156

An effective persuasive essay involves developing an outline, planning topic sentences, and identifying supporting points. How will you use these three concepts in planning and writing an essay?

333. ## Physics

A ball, initially at y = 0, is thrown straight down and takes 1.50 s to move 15.5 m in the - y direction. Calculate the initial velocity of the ball. Calculate the velocity of the ball at t = 0.900s.

334. ## math214

Following are the men’s gold-medal times for the 100 m run in the Olympic games from 1896 to 2003, rounded tothe nearest tenth. Construct an ordered stem and leaf plot for the data. Year Time (sec), (rounded) 1896 12.0 1900 11.0 1904 11.0 1908 10.8 1912

335. ## Social Media

•Huge corporations own every television network and most other media outlets. How does this affect their news coverage? How much influence do you think these corporations have on the public? Do you think the public is aware of the comments made by you

336. ## math214

Use the following data to justify the amount of time that you expect to assign for weekly homework to classes in grades K–4 and grades 5–8. National Survey of Teachers Concerning the Amount of Homework Assigned per Week k-4 (percentages) 5–8

337. ## Social Media

Has the explosion of available information made media coverage better or worse?

338. ## Physics

A ball is thrown vertically upward, starting at y = 0, with a velocity of 15.0 m/s. (a) Calculate the maximum vertical displacement of the ball. (b) Calculate the time required for the ball to reach its highest point. (c) What is the ball's acceleration

339. ## pre cal

tan θ, cos θ; θ in quadrant III

340. ## Comp

An effective persuasive essay involves developing an outline, planning topic sentences, and identifying supporting points. How will you using these three concepts in planning and writing an essay?

341. ## help please:)

Which of the following is not important in SQR3 method? A.increse in the speed of reading B.absorption of information C.improvement of reading skills D.increse in retention I got A what do you think?

342. ## chem

why are electron groups that repel each other higher in energy?

343. ## Astronomy

Star 'A' has twice the radius of star 'B'. The ratio of the surface area of star 'A' to the surface area of star 'B' is equal to 8 4pi 2 1/8 4

344. ## Geometry

If the rule (x, y) ¡ú (x + 3, y ¨C 3) is applied to the original triangle, give the coordinates of and draw the image. Show your work for calculating the coordinates of the resulting image.

345. ## College Algebra 2

Find the equation of variation in which y varies jointly as x and z and y=8, x=4 and z=2

asked by So Confused

Iron is found in Earths crust as several different iron compounds. Calculate the mass (in kg) of each compound that contains 1.0 x 10E3 kg of iron. Fe2O3 Please help step by step

347. ## Physics

A dog is running at 3.0 m/s for 3.6 km. How long did it take him to arrive at his destination? (Give answer in seconds)