# Questions Asked onSeptember 20, 2012

1. ## mathematics

what is the domain of the function f(x)=1/root[2x-3]

2. ## Physics

A solid of density 5000 kg/m^3 weighs 0.5 kgf in air.It is completely immersed in water of density 1000 kg/m^3. Calculate the apparent weight of the solid in water.

3. ## Calc 3

Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=

4. ## mathematics

in triangle abc if acosA= bcosB then how to prove the triangle is isosceles or right angled

5. ## SIG FIGS

How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. If you don't mind can you please state some rules for sig figs that are helpful and some confusing

6. ## english

1. What makes “The Seafarer” an elegy? a.It celebrates the speaker’s faith in God. b.It describes a strong and fearless traveler. c.It focuses on feelings of loss and mourning. 2. What is the fate of the speaker in “The Wanderer”? a.He must

7. ## math

if you diluted 145 ml of a 9% benzocaine lotion to 6% how much could you produce

8. ## phsycis

A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

9. ## chemistry

The mass of an empty flsk is 49.74 g. what is the mass of the flask filled with acetone ( d = 0.792 g/mL) if the same flask weighs 75.2 g. when filled with water?

10. ## Physics

A bear spies some honey and takes off from rest, accelerating at a rate of 2.3 m/s2.v If the honey is 18 m away, how fast will his snout be going when it reaches the treat?

11. ## Chemistry

A modern penny weighs 2.5 g but contains only .063 g of copper. How many copper atoms are present in a modern penny? Thanks in advance for any help you can give!

12. ## calc 3

Use the Chain Rule to find dw/dt. w = ln (x^2 + y^2 + z^2)^.5 , x = 9 sin t, y = 6 cos t, z = 7 tan t

List the conjugate base for the following acids: 1) Acid = CH3CH2CH2NH3^+ Conjugate base = CH3CH2CH2NH2^- 2) Acid = CH3CH2CH2OH2^+ Conjugate base = CH3CH2CH2OH^- Are my answers correct? Thank you!

For the function f(x)= 8/x+7,find the average rate of change of f from 1 to x.

15. ## calculus

2 posts one is 10m high and other is 15m higs stand 30m apart they are to be stayed by transmission wire attached to a single stake at the ground level, the wire running to the top of the post , where should stake place to used least amount of wire ?

16. ## mathematics

what is the maximum value of sinthetacostheta?

17. ## mathematics

write the number of points of intersection of 2y=1 and y= sinx. -2pi

18. ## General Chemistry (Chem101)

A chemist mixes two liquids A and B to form a homogeneous mixture. The densities of the liquids are 2.0514 g/mL for A and 2.6678 g/mL for B. When she drops a small object into the mixture, she finds that the object becomes suspended in the liquid; that is,

19. ## Chemistry

Which cannot be broken down chemically or physically into a simpler substance between sugar, salt, seawater, and copper?

20. ## Abnormal Psychology

Behaviors such as fighting, destructiveness, and threatening others are referred to as _______ behaviors. A. aggressive C. externalizing B. delinquent D. externalizing and aggressive

21. ## Math Ratios

Julian, Majid and Pillay had the same number of rubber bands. During a game, Julian lost 12 rubber bands to Pillay and Majid lost 20 rubber bands to Pillay. The ratio of Julian's rubber bands to Majid's rubber bands became 4:3. How many rubber bands did

22. ## mathematics

the complex numbers 1,-1,iorta root3 form which type of triangle in graphical form

23. ## Algebra 2

Jason loves to download music. Downloads R Us sells songs only in packages of three, and it charges \$2.00 for each package of three songs. jason's favorite group just released their Greatest Hits CD, which has 17 songs on it. Jason wants to buy all 17

24. ## math

using the terms factor, division, multiple, product, and divisible by, write as many statements as you can about the number sentence 4x7=28

25. ## Intro to Accounts

Hello, I really don't know where to begin Travis Fortney, an architect, opened an office on April 1, 2010. During the month, he completed the following transactions connected with his professional practice: a.Transferred cash from a personal bank account

26. ## chemistry

Concentrated hydrochloric acid is a 38% solution of hcl in water and has a density of 1.18g/ml. How many milliliters of concentrated hydrochloric acid are needed to prepare 500ml of a 1:200 hcl solution. My own three calculation 1.18g/ml x 1000ml x0.38 /

48.3-12.716=

28. ## Math

How many significant figures does 22.0, 0.22, 22. , 0.022? Im just confused as to the decimal addition to numbers and what the sig figs will be for them. Thank you!!!

29. ## Chemistry

25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal

30. ## Abnormal Psychology

Which of the following is not true of the meta-analytic findings of research therapy with children? A. Changes achieved by children receiving treatment are greater than those for children not receiving treatment. B. Treatment effects are larger for

31. ## Abnormal Psychology

In comparison with youth on the life-course-persistent path, those on the adolescentlimited path A. display more extreme antisocial activity. B. are more likely to drop out of school. C. are often influenced by situational factors, such as their peers. D.

32. ## Chemistry

This is meant to be simple, but for some reason I'm not getting the right answer. Question is: Perhaps the most famous horse race ever in the United States was the 1938 race between two thoroughbreds, War Admiral and Seabiscuit, both of whom stood about 15

33. ## Abnormal Psychology

The single most powerful predictor of conduct problems in adolescence is A. early antisocial behavior. B. early antisocial behavior and involvement with deviant peers. C. early antisocial behavior and poor parenting. D. poor parenting and involvement with

34. ## AP Human Geography

What are some mathmatical examples of physiological and agricultural density?

35. ## stats

a horse race has 11 entries, assuming that their are no ties what is the probability that four horses owned by one person finish first second third and fourth

36. ## calculus

Differentiate the function. S(R) = 4πR^2

37. ## dynamics

The acceleration of a particle is defined by the relation a = -60x^-1.5, where a is expressed in m/s^2 and x in meters. Knowing that the particle starts with no initial velocity at x = 4 m, determine the velocity of the particle when x = 2 m, x = 1 m, x =

38. ## math

a fencing company was asked to enclose three gardens with wire fences: a rectangular garden with a length of 270 meters and a width of 1123.62 meters; a square garden with a side length of 657.955 meters; and a rectangular garden with a width of 35 meters

39. ## Physics

A 5.2-m-diameter merry-go-round is initially turning with a 3.0s period. It slows down and stops in 28s. i found the v = 5.4 m/s, How many revolutions does the merry-go-round make as it stops?

40. ## sociology

what can occur when a social norm is dysfunctional?

41. ## algebra

a boy is b years old and his father is 6 times as old as him. find the father's age. and also the sum of their ages in years time?

42. ## health

why is it imporant to take part in team disussion on care plans and reviews for clients?

43. ## arrays

another band has 30 speakers. they stack them at least 4 high, but no taller than 6 high. what are all the different arrays they could make?

44. ## MATH

IT TOOK STACY 6 MINUTES TO COUNT TO 1,000. IF SHE CONTINUED COUNTING AT THE SAME RATE, HOW LONG WOULD IT TAKE HER TO COUNT TO 1,000,000?

45. ## arrays

Rock bands often stack their speakers in an array. One teen band has 24 speakers. They stack them at least 2 high, but no taller than 8 high. What are all the different arrays they can make.

46. ## arrays

One band has 30 speakers. They stack them at least 3 high, but no taller than 6 high. What are all the different arrays they could make?

47. ## arrays

Another band has 48 speakers. They stack them at least 4 high, but no taller than 6 high. What are all the different arrays they can make?

48. ## arrays

One band has fewer than 40 speakers. They stack them in a array exactly 9 high. How many speakers could they have? Explain how you know.

49. ## physics

when the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 4.7m/s as it slows from 8.7 m/s to 0 m/s. find the time interval of acceleration for the bus

50. ## Chem

There are two stable isotopes of Gallium Their masses are 68.92558 and 70.9247050 AMU. If the average atomic mass of gallium is 69.7231, what is the natural abundance of the lighter isotope? I don't know where to start!

51. ## physics

how do you find the initial velocity on a velocity time graph

52. ## physics

how do you find the initial velocity on a velocity time graph

53. ## Algebra

A farmer plans to enclose a rectangular region using part of his barn for one side and fencing for remaining sides. The area of the region is maximized when the width is 30 feet. a.) write an equation that could model the area as a function of the width.

54. ## Ratio and Proportions

Salina had some local and foreign stamps. The ratio of the number of local stamps to the number of foreign stamps was 3:4. She bought 21 more local stamps and the ratio became 9:8. a. How many foreign stamps did Salina have? b. How many local stamps did

55. ## math

how do i figure out the volume that 90g would occupy?

56. ## geometry

Type a counter-example that would have to exist in order for the conclusion to be false. 5 0, 6 0, 12 0, 16 0, 20 0, 100 0. Conclusion: All numbers are greater than 0.

57. ## chemistry

The atomic mass of chlorine is listed as 35.454 amu on the periodic table. It has two naturally occurring isotopes, CI-35 and CI-37. What are the approximate percentage of each?

58. ## mathematics

how many liters of water will have to be added to 1125 liters of 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content.

59. ## maths

if alpha and bita are the zeros of polynomial p(x=3xsquare+2x+1,find the polynomial whose zeros are 1-alpha/1+alpha and 1-bita/1+bita

60. ## Calculus

Consider the function f(x)=(5^x−1)/x. A) Fill in the table values for f(x): x= -0.1, -0.01, -0.001, -0.0001, 0.0001, 0.001, 0.01, 0.1 f(x)= 1.4866, 1.5866, 1.6081, 1.6093, 1.6096, 1.6107, 1.6225, 1.7462 B) Based on the table values, what would you expect

61. ## 3rd math

April needs to estimate the sum of 427 and 338 should she round to the nearest ten or hundred to get the closer answer? Explain.

62. ## Math

Suppose 8 out of every 20 students are absent from school less than 5 days a year. Predict how many students would be absent from school less than 5 days a year out of 40,000 students

63. ## physics

determine the acceleration for a jet taking off on a run way as it starts from rest and reaches a velocity of 50m/s over a period of 10s

64. ## Financial Investments

The number of years n required for an investment at interest rate r to double in value must satisfy (1+r)^n = 2. Using the approximation ln(1+r)=r valid for small r, find the number years n as a function of r.

65. ## math

To cook 4 cups of rice, you use 8 cups of water. To cook 10 cups of rice, you use 20 cups of water. Write an expression to show how many cups of water you should use if you want c cups of rice. How many cuos of water shou you use to cook 5 cups of rice?

66. ## Calculus

During a sale, a music store is selling all drum kits for 20 percent off. Preferred customers also receive an additional fifteen percent off. Write a composite function to represent the final cost of a kit that originally cost c dollars. Find the cost of a

67. ## Physics

tammy leaves the office drives 50 km due north, then turns onto a second highway and continues in a direction of 32 degrees north of east for 93 km. At what angle is her displacement? (consider east to be 0 degrees and north 90 degrees)

68. ## World History

What was the role of women in Muslim society?

69. ## Chemistry

Which cannot be broken down chemically or physically into a simpler substance between sugar, salt, seawater, and copper?

70. ## Language Art

In the giver, i guess headdresses and hair ribbons represent sameness. Does anyone know what page number it talks about the headdress because im not able to find it ?

71. ## Chemistry

A mixture of iodine solid and sodium chloride ( Hint: iodine is not soluble in water) What method(s) can I use to separate the mixtures? Filtration Evaporation Centrifugation Decant Magnetic attraction Paper chromatography Distillation

72. ## Science (Physics)

1.A hiker started to walk from her campsite heading east with a velocity of 5 m\s after 6 seconds, she attained a velocity of 7 m\s. What is the average velocity of the hiker? What is the hiker’s acceleration? If the hiker continues walking for another

73. ## Math

Is there a way to simplify this further? Thanks (√ x + √ y) / x^2+y^2 ( Square root of x plus square root of y) All divided by x^2+y^2.

74. ## science

10 grams of ice at 0 degree centigrade absorbs 5460 joules of heat to melt and change itno water at 50 degree centigrade.calculate the specific latent heat of fusion of ice?

75. ## Physics

A rollercoaster travels 135ft at an angle of 58.7 above the horizontal. How far does it move horizontally?

76. ## Conditional Probability

A box contains 1 green ball, 2 blue balls, and 3 red balls. These balls are selected at random, one after another without replacement, and their colors are noted. Find the conditional probability that the third ball is red given exactly one ball is red.

77. ## Math

How do you solve a(x+1)= b solving for x

78. ## math

how do you put 2√45 in simplest radical form?

79. ## Math

How do you solve a(x+1)= b solving for x

80. ## Abnormal Psychology

_______ refers to the concept that the childâ€™s behavior is both influenced by and influences the behavior of others. A. Coercion C. Reciprocal influence B. Attachment D. Influential factor

81. ## Math

If you have 7 striped socks and 3 red ones. How many must you take away to be sure to have a striped pair?

82. ## Abnormal Psychology

The formal assignment of a clinical case to a DSM-IV-TR classification category is referred to as a/an _______ diagnosis. A. empirical C. proper B. taxonomic D. psychological

83. ## Geometry

What is the simple term for a converse? Like what is it? Like when they say "Same Side Interior CONVERSE" Whats the converse part mean?

84. ## Physics

Instructions for building a buried treasure include the following: Go 872 paces at 167 degrees turn to 286 degrees and walk 135 paces, the travel 319 paces at 152 degrees. A) Find the magnitude of the resultant displacement from the starting point. B) What

85. ## chemistry

When 14 grams of a sample cools from 59C to 27.8C it loses 20.9 Joules of heat. What is the specific heat of the sample?

86. ## law/421

What types of problems was the UCC designed to address?

87. ## statistics

how do i calculate the SAT score that defines the bottom 3% of students with a mean of 500 and standard deviation of 100

88. ## physics

(a) If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 3.43 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2

89. ## math

A function whose domain is all reals and whose range is all integers.

90. ## Math

A function whose domain is all reals, and which maps all rational numbers to 1 and all irrational numbers to 0.

91. ## English

Can you please give me three examples of friendship and sacrifice? Thanks.

92. ## Algebra 2

1. |x^2-3x+3|=3 2. |x^2+2x+1|=-4 3. |3x+2|+3=0

93. ## college us history to 1877

compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to America,

94. ## math

find the value of 7n when n is 7565?

95. ## Chemistry

A 0.41 g sample of limestone was dissolved in HCl and all the calcium in the limestone was converted to Ca2+(aq). The solution was treated with excess ammonium oxalate, (NH4)2C2O4(aq), and it was found that 3.0 g of calcium oxalate, CaC2O4(s) was

96. ## math

find the value of 7n when n is 7565?

97. ## Math

The ruble is the currency in Russia. In 2005, 1 united states dollar was worth 28 rubles. How many rubles were equivalent to 10 united states dollars

98. ## math

find the value of 7n when n is 7565?

x+4/-3=6-x

100. ## Accounting

In a trial balance there are amounts in the debit side and credit side. How do i know which one is debtors or creditors? Returns are on both debit and credit side. Which one is Return Inwards?

101. ## Math

This isn't a question for math homework but i have a really low grade in math and i want to raise it up. What can i do to get my grade up because i am getting progress reports on Monday and i want to get a really good grade.PLEASE HELP!!!!

102. ## math

anoter poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of this poster if the length is 30 3/10" and width is 20 7/8"?

103. ## phsyics

a 100 kg block being released from rest over a pulley from a height of 1.0 m. It takes 0.98 s to reach the floor. What is the mass of the block hanging on the other side of the pulley.

104. ## health

Adults and children should limit their intake of sodium because? A. Keeping blood pressure in the normal range reduces an individualâ€™s risk of cardiovascular disease, conges¬tive heart failure, and kidney disease. B. Keeping blood pressure in the

105. ## physics

200 gram cube is moved by a 100 gram water filled Styrofoam cup

106. ## calculus

Differentiate the function. g(x)= x^2(1-2x) g'(x)= i tried doing 2x(1-2x) 2x-4x^2

107. ## Physics

Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.2 seconds after you release the keys, they have an instantaneous velocity of 15.7 m/s, directed 52° below the horizontal. What initial velocity did you give them?

108. ## math

how do you solve 4(3d-2)=8d-5

109. ## Spelling

From the vocabulary word in lis 6, choose the word that bests completes each sentence. Write the word in the blank provided. 1. Sir Lancelot's _______ was so great that it was said, "He hath the strenght of ten because his heart is pure. - Is the words

110. ## Calculus AP

Use the table of integrals to find int cos^4 3x dx I found the table: ∫cos^n u du = (1/n)cos^(n-1)u sinu + (n-1/n)∫sin^(n-2)u du = 1/4 cos^(4-1)u sinu + (4-1/4)∫sin^(4-2) u du so what i did the problem: let u=3x then du=3dx =1/4*1/3 cos^3u sinu +

111. ## math

a large stadium holds almost 100,000 people about how many times does the stadium have to filled for total attendance to reach one million?

112. ## Physics

Standing on a balcony, you throw your keys to a friend standing on the ground below. 1.2 seconds after you release the keys, they have an instantaneous velocity of 15.7 m/s, directed 52° below the horizontal. What initial velocity did you give them?

113. ## statistic and probability

a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)

114. ## Math

If g(x) = 5 + x + e^x, find g^-1(6) g^-1(6) = ?

115. ## MATH

IT TOOK STACY 6 MINUTES TO COUNT TO 1,000. IF SHE CONTINUED COUNTING AT THE SAME RATE, HOW LONG WOULD IT TAKE HER TO COUNT TO 1,000,000?

116. ## algebra

\$16 added to an amount of money saved,s, then spent equally on 3 items what does the expression mean?

117. ## math

I am a number less than 15. The sum of my 4 digits is twice my hundredths digit. My greatest digit is in the ones place. what number am I?

118. ## probability

From a well- stuffed deck of playing cards is drawn. Find the probability that: a.) it is a spade? b.) it is a face card? c.) it is a jack?

119. ## LA

what links the subject of the sentence with a description of the subject?

120. ## Physics

A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?

121. ## LA

A noun in the predicate that is used as a description is called a _______> Please help!

122. ## Physics

A motorist drives north for 40.0 minutes at 61.5 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.70 h. (a) What is his total displacement? (b) What is his average velocity?

123. ## physics

A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant, a ball is dropped from rest from a building 15 m high. After how long will the balls be at the same height?

124. ## calculus

Determine whether the series is convergent o divergent and say what test you used to solve it. (d) sum n=1 to infinity (5n)^(3n) / (5^n + 3)^n (e) sum k=1 to infinity 5 / sqr(2k - 1)

125. ## physics

A swimmer is capable of swimming 0.95 m/s in still water. (a) If she aims her body directly across a 150-m-wide river whose current is 0.65 m/s, how far downstream (from a point opposite her starting point) will she land?

126. ## physics

A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

127. ## physics

A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

128. ## math

A bead maker wants to separate 10,000 beads in boxes. She will put 100,000 beads in one box. Where will she put the 4358216th bead?

129. ## Physics

A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 4.0 minutes. The tortoise wins by a shell (35 cm). (a) How long does the race take? (b) What is

130. ## physics

A boy is riding a bicycle in a rainy day. The force exerted by the boy and the force due to which rain falls downward.

131. ## Social Studies

Which three countries makes up most of North America?

132. ## stat

Help my name is Gee and i have posted several question on and ive waited for help and no one will answer can someone please assist me. My post were on Sept 13 and 18 2012 thank you

133. ## math

how to solve 2x-9/3=8-3x

134. ## literature

Where is Hrothgar leading the warriors at the beginning of Episode Seven?

135. ## music

why college students learn about music that is not their favorite type

136. ## Accounting

Calculate variable cost variances—explain results The standards for one case of Springfever Tonic are: Direct materials . . . . . . . . . . . . . . . . . . 8 lbs. @ \$3.00/lb. = \$24 Direct labor . . . . . . . . . . . . . . . . . . . . . 6 hrs. @ \$1

137. ## Algebra

I'm totally confused help please?!? In 1990, 253 million people visited theme parks in the United States. In 2000, the number of visitors increased to 317 million people. What was the percent of increase?

138. ## Maths

What is the integral of: 1/root(2x-x2)

139. ## math

A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

140. ## physics

A hiker makes four straight-line walks A 31 km at 299 degrees B 32 km at 210 degrees C 29 km at 59 degrees D 22 km at 150 degrees in random directions and lengths starting at position (41 km, 41 km). Which vector will return the hiker to the starting

141. ## Science

pH of: 2.50mL of 0.100M nitric acid added to 30mL of 0.200M potassium hydroxide Please show me working out :)

142. ## Geometry

What is the simple term for a converse? Like what is it? Like when they say "Same Side Interior CONVERSE" Whats the converse part mean?

143. ## MATH

a large stadium holds almost 100,000 people about how many times does the stadium have to filled for total attendance to reach one million?

144. ## Math help ASAP!

A truck has a maximum-load rating of 5 tons.It is going to be loaded with machine parts that each weigh 66 pounds 9 ounces.How many of the machine parts can be loaded into the truck without exceeding its maximum-load rating?

145. ## heath

What sources might you use to gain information on a new client to aged care facility?

146. ## chemistry

drysol contains 5g of aluminum chloride hexahydrate in 60 ml of an alcohol base. what is the final strength of drysol

147. ## science

After you have worked out at the gym on a stationary bike for 44.0 minutes, the distance gauge indicates that you have traveled 16.1 miles. What was your rate in km/hr?

148. ## ASAP MATH!

A paper carrier rides a bicycle to deliver newspapers on his route.He averages 5 miles per hour during his route.At that rate,how long would it take him to deliver papers to a street that is 680 yards long?Round the answer to the nearest tenth of a minute.

149. ## math

two fourths of a circle plus two tenths of a circle is what decimal part of a whole circle?

150. ## MATH FAST NOW!!!!

1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 7.x%(-17)=-35

151. ## Math

I am in need for help on laws of exponents. 1) 4/x^-3== I do not understand... 2)x^4/y^-3 = Early thanks.

152. ## physical

From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval

153. ## 24 game

How can you add,subtract,multiply, or devide the number 8,1/4,2,7 to get 24? You can only use the nunbers once

Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?

155. ## Physics

The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Suppose a car is designed to accelerate at this rate. How much time would be required for the car to accelerate from rest to 59.1 miles

156. ## math

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

157. ## math

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

158. ## physics

A 2.14 kg block is held in equilibrium on an incline of angle q = 67.7o by a horizontal force, F. If the coefficient of static friction between block and incline is ms = 0.314, determine the minimum value of F. Determine the normal force of the incline on

159. ## math

Every year there is a race to the top of the empire state building. In 1993 the winner got to the top in 10 minutes, 18 seconds. how many stairs did the winner go up per second, rounded to the nearest whole number

160. ## English 8R - HELP! (FAST!)

English 8R HW - literacy elements + literacy devices, look it up and take notes Please help!!!!! ps -- what is literacy devices????????/

161. ## chemistry

what is the bond order of n2 positive, n2neagative, n2 2neagative?

162. ## Math

What is the integral: 1/root(2x-x^2)

163. ## physics

a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?

164. ## phsyics

A place kicker must kick a football from a point 35 m (about 38 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 24 m/s at an angle of 48 ◦ to the horizontal. By how

165. ## physics

a car traveling in a straight line has a velcoity of 2.43 m/s at some instant. After 6.73 s, its velocity is 9.81 m/s. what is its average acceleration in this time interval?

166. ## science

What is the relationship between landscape and psychological well being?

167. ## health

What might be disadvantage of rearranging the furniture for the clients with dementia at aged care?

168. ## physics

A daredevil is shot out of a cannon at 41.6 ◦ to the horizontal with an initial speed of 28.6 m/s. A net is positioned a horizontal distance of 29 m from the cannon. At what height above the cannon should the net be placed in order to catch the

169. ## physical

From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval

170. ## literacy

8. Which of the following sets of Dewey Decimal call numbers is in the correct order? A. 813.54 C78A, 813.54 C780B, 813.54 C781D, 813.54 C782A B. 813.54 C781D, 813.54 C78A, 813.54 C782A, 813.54 C780B C. 813.54 C78A, 813.54 C782A, 813.54 C780B, 813.54 C781D

171. ## chemistry

how would you, explain ans how calcium chloride [CaCl2] is bonded.

172. ## Math

The perimeter of a rectangular deck is 175 feet. The length of the deck, L, is 6 feet longer than 2 times the width, W. Which system of equations can be solved to determine the length and width, in feet, of the deck? What is the correct formula and why? a)

173. ## Math

Explain how to write 40,000 in two different ways (not meaning standard, expanded, or word form).

174. ## physics

a stone is dropped from rest at the top of a mine shaft. it takes 59 s for a stone to fall to the bottom of a mine shaft. how deep is the shaft? the acceleration of gravity is 9.8 m/s2

175. ## math

A jumbo jet carries 150 passengers, 30 in first class and the remainder in coach. If the average first class ticket is \$550 and the average coach ticked is \$150, how much will the airplane gross if the plane is full?

176. ## English

Why was literacy a prime concern in the Massachusetts Bay colony?

177. ## Math

Can you help me with this question? Could a person walk across the United States (New York to California) in a year? If not, about how long will it take? Explain your reasoning.

178. ## physics

Position vector r has magnitude of 14.8m and direction angle 240 degrees. 1. Find it's components, enter x and y components of the vector 2. Find the components of the vector -2r, enter x and y components of the vector 3. Find the magnitude of the vector

179. ## math

a poster reproduces the Mona Lisa in the original size, but adds a 4 1/2 inch border around each side. What is the perimeter of this poster if the length is 30 3/10" and width is 20 7/8"?

180. ## physics

how do you find the initial velocity on a Velocity Vs Time Graph

181. ## Physics

Your 2.85kg physics book rests on a horizontal tabletop. A. Find the normal force on the book. B. Suppose you pull up on the book with a 15.0N force, now what's the normal force? C. Suppose you push down on the book 15.0N Force now what's the normal force?

182. ## biology

Why are antibiotics and vitamins not normally autoclaved when preparing microbiological media?

183. ## Physics

A ball is thrown from a point 1.38 m above the ground. The initial velocity is 19.9 m/s at an angle of 33.8° above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

184. ## English

Would a soldier sacrifice their life to serve the country?

185. ## Math

Solve each equation for x e^(4x+1)=p log (kx)/ log (5) = c

186. ## Physics

A particle's constant acceleration is north at 108 m/s2. At t = 0, its velocity vector is 61.7 m/s east. At what time will the magnitude of the velocity be 102 m/s?

How do you identify whether a ratio is a rate??? Thank you for all help.

188. ## Math

Find the formula for the inverse of the function y =(e^x) / (1+8e^x)

189. ## science

how are the purposes of science and technology different?

190. ## English

I need help in writing a summary for the article posted in the new york times. The article is Texting may be taking a toll by Katie Hafner.

5x/9-11=-51

192. ## Physics

1) A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. What is the distance traveled? 2) A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s?

193. ## Physics

Judy, by chance, spots a potted plant falling outside the window at 2.88 m/s . Further down the same building, Judy’s boyfriend clocks the pot at 54 m/s . How far apart are the friends? The acceler- ation of gravity is 9.8 m/s2 . Answer in units of m

194. ## Physics

A person climbs from a Paris metro station to the street level by walking up a stalled escalator in 96.5 s. It takes 60.0 s to ride the same distance when standing on the escalator when it is operating normally. How long would it take for him to climb from

195. ## BIOLOGY

Why does the quadrant streak technique able to give single colonies?

196. ## Physics

A ball is thrown straight up and reaches a maximum height of 6.71 m. What was its initial speed? The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m/s please give right answer and explain how you got it, thanks !

197. ## math

order these decimals greatest to least 0.08, 0.09, 1.4, 0.0045, 2.9

198. ## math

if one sign binks every 7 seconds and the other sign blinks every 9 seconds in how may seconds will they blink together again?

How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x - 10y = 0 5x - 4y = 8 Answer (8,8) I got the right

200. ## Chemistry

Calculate the quantity of cold water assuming that 50mL of cold water weighs 50g.

201. ## Calculus -Series3

Find the sum of the following convergent series: (a) Ei=1 1 / (3i - 2)(3i + 1) I know that it equals: = 1/4 + 1/28 + 1/70 + 1/130 + 1/208 a= 1/4, but I can't figure out what r = 1/4 * 1/7 = 1/28, but from 1/28 to 1/70 and so on it doesn't work anymore.

202. ## Calculus - Series4

Determine if the following sequence: { (n + 1)^2 / (n^2 + 1) }, is ascending, descending and find the lower bound b OR the upper bound B. (n + 1)^2 / (n^2 + 1) > ((n+1) + 1)^2 / ((n+1)^2 + 1) so the sequence is descending, it's the bounds I don't know how

203. ## science

why is scientific inquiry a process with many paths, not a rigid sequence of steps?

204. ## word power

4. Someone who is urbane is A. tireless. B. poised. C. witty. [D. friendly.]

205. ## physics

A car travels along a straight stretch of road. It proceeds for 11.9 mi at 58 mi/h, then 29.4 mi at 44 mi/h, and finally 36.9 mi at 31.6 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h

206. ## math

there were 32 cookies and 48 carrots served,each cast memebers had the same number of whole cookies and the same number of whole carrots.nothing was left over .what was the most cast members that could have been at the party?

207. ## calculus

Differentiate. y = x^3/3 − x^2

208. ## physics

A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s? (Neglect drag forces.) The acceleration due to gravity is 9.8 m/s2 . Answer in units of m/s How far has it fallen in that time?

209. ## English

The Modern Drama collection theme is Opening Doors. Discuss examples of the ways in which doors and keys are used as symbols in The Miracle Worker. Make at least two references to specific details in the play to support your ideas.

210. ## Math

the height of a rocket with an upward speed of 1000m/s is expressed as h=1000t-4.9t^2. what is the hight of the rocket after 8 seconds?

211. ## pre-calculus

for the function f defined by: (x)=3x^2+3x+2;find the following values. a. f(-1)= b. f(-x)= c. -f(x)= d. f(x+h)=

212. ## physics

With an average acceleration of −0.96 m/s2, how long will it take a cyclist to bring a bicycle with an initial speed of 14.8 m/s to a complete stop? Answer in units of s

213. ## Math

what is 90 rounded to the greatest place?

214. ## physics

A car traveling initially at +5.7 m/s acceler- ates uniformly at the rate of +0.79 m/s2 for a distance of 262 m. What is its velocity at the end of the accel- eration? Answer in units of m/s What is its velocity after it accelerates for 132 m? Answer in

215. ## math

how do i do the problem 3.14=7x=2y

216. ## mathematics

not drawn to scale, shows a prism of length 30cm. the cross section wyxz is a square with area 144cm^2 (i) the volume in cm^3. of the prism

217. ## math

what is the lcm of 24 and 48

218. ## MAT

The recommanded weight range for a person who is 64 inches tall

219. ## physics

A crate of potatoes of mass 13.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.76 and μk = 0.35. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up the ramp.

220. ## Math

How many liters of oil are required to supply the electrical energy needs of an average home for a month? Energy released by burning 1 liter of oil= 1.2 x 10(7th power) Electrical energy used in an average home daily 5 X 10 (7th power) I got 125 liters. Is

221. ## us/101

How would you determine the best way to communicate with each group?

How do you arrange the numbers 2 4 5 and 6 ans insert the symbols "-" and "x" in a way that u follow PEMDAS/ order of operations to get the answer 8

223. ## Physics

A stone is dropped from a height of 5 meters. How long will the stone be in the air?

224. ## math

A jewelry designer is making identical bracelets. She has 21 blue beads and 14 red beads. What is the greatest number of bracelets she can make using all of the beads

225. ## word power

9. A person described as perspicacious is [A. smart and perceptive.] B. inclined to be optimistic. C. inclined to be pessimistic. D. foolishly persistent.

226. ## science

what is the best way to study for my chemistry test tomorrow

227. ## physics

A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?

228. ## word power

13. One who is intrepid [A. is brave and fearless.] B. is reckless and foolhardy. C. practices self-honesty. D. doesn't stumble and fall.

229. ## math

8 boxes of 1000 counters

230. ## math

list all the factors of 48

231. ## Check my Essay?

The story I am writing about is similar to a song called "Chain of Love" by Clay Walker. This song and the story, "What Goes Around Comes Around," by an unknown author have the exact same concept. "The Chain Of Love" “You don't owe me a thing, I've been

232. ## physics

list the contact and non contact forces in mathematics. What is the cold welding?

what are three important thing for an evaluating and inequalities and abs. values please and thank you

234. ## college us history to 1877

you need to compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to

235. ## math

what is the prime factorization of 42.

236. ## physics

what is time paradox and time dillation?

237. ## Math

While visiting their uncle's farm, Francine and Leah caught 68 turtles in the creek on Saturday. What was the total number of tickets sold for the two days? Estimate using on the front digits.

238. ## English Vocab

For the sentence, The school administration declared a new rule that all students, even boys, must wear pink socks, but when questioned, they refused to ______________ upon the reasoning for this decision. In the blank, which word suits best? Expound or

an acid with the equilibrium concentration is listed below: 1) HA + H2O = H3O^+ + A- HA= 10^-1 M, H3O=10^-3M, A=10^-3M Calculate the Ka and pKa for the acid. Ka=[10^-3][10^-3] / [10^-1] = 1.00 X 10^-5 pKa = -log[1.00 X 10^-5] = -1.00 Did I do this

240. ## ela

The narrator points out that Emily, who has only recently blossomed, struggled with her appearance in the past. What this means..

241. ## Math

Daniel Filled the gas tank in his car with 14.6 gallons of gas. He then drove 284.7 miles before needing to fill up his tank with gas again. How many miles did the car get to a gallon of gasoline? (I'm just wondering how To set up this problem)

242. ## earth

what is geography?

243. ## Principle of Finance

How do I calculate profit margin with the following data? Total equity - 639,400 Net incoome - 51,700 Debt equity ratio - .55 Total asset turnover - 2 Thanks!

your teacher has told you to subtract by adding on to find the difference in this problem: 71-36. what do you do first?

245. ## earth science

astonomer think planets formed from interstellar dust and gased that clumped together in a process is called what?

246. ## calculus

Differentiate the function. y = (Square root x)(x − 10)

247. ## math 116

need help with the final

248. ## Physics

After falling from rest from a height of 35 m, a 0.49 kg ball rebounds upward, reaching a height of 25 m. If the contact between ball and ground lasted 1.7 ms, what average force was exerted on the ball?

249. ## science

What conclusion could you make for Sun emitting a continuous spectrum of radiation crossed by dark bands

250. ## Math

Find the present value of \$9500 in 6 1/2 years if money earns 7.5% compounded continuously.

251. ## physics

A bug completes one lap along the edge of a circular planter of radius 14.4 cm in 12.94 s.

252. ## History

What is moral law? What is civil law? Contrast the both. can someone name me anything relating to those from current events or historical events?

253. ## language arts

The Giver.At the age of 3, each child needs to have hair ribbons and for boy head dresses. Those are the community rules. But now i need to know what do the hair ribbons and hair dresses symbolize ? Why ? And how do they relate to the outside world or to a

254. ## English

1.I started play the oboe because [I've heard] it was a challenging instrument (a) no change (b) I'd have heard (c)I've been hearing (d) I'd heard 2. That was [four years ago and, I've] enjoyed learning to play (f) no change (g) four years ago, and I've

255. ## algebra

Find the value of 7n when n is 7565

256. ## math

dr.chen told miranda that her new puppy needs a diet that includes at least 1.54 ounces of protein and 0.56 ounce of fat each day to grow into a healthy dog. each cup of good start puppy food contains 0.84 ounce of protein and 0.12 ounce od fat. each cup

257. ## physics

Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If mass one equals 3.6 Kg and mass two equals 9.2 Kg, and block two is initially at rest 140 cm above the floor, how Long does it take block two to reach the

258. ## INFORMATION LITERACY

Exam: 050006RR - INFORMATION LITERACY:STUDY UNIT

259. ## English

1. When my teacher stopped [making reeds. Sending] all of her students on a wild goose chase. a. no change b. reeds. Thus sending c. reeds, she sent d. reeds, sending 2. They tend to take their time sending reeds to [you. I usually] have to wait a. no

260. ## math

-h-7= -13 explain on how to the variable while theirs a negative in front of it

261. ## English

On an invitation, it says "Come celebrate at my pad!" and has a picture of a lilly pad on it. Is this an example of a pun?

262. ## Global Warming

What are some ways to stop global warming? I know clean eneregies are involved. (Thanks for the last one!!!)

263. ## math

bill stacks a 5-centimeter square on top of a 2-centimeter by 20-centimeter rectangle. what is the smallest rectangle box he can use to pack them together

264. ## Math

Can You help me with this question? The distance from the earth to the sun is about 1.5 X 10^8 km, while the distance from the earth to the moon is about 3.8 X 10^5 km. If a scale model of the solar system is constructed so that the distance from the Earth

265. ## social studies

Use a map to describe the earliest explorations of the New World by the Vikings.

266. ## 3rd math

The flower shop just received a shipment of 432 roses. They need to fill an order for 273 roses. Use any method to how many roses they will have left.

267. ## Chem

The mass of a cube of iron is 277 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?

268. ## Coporate Finance

Two-State Option Pricing Model T-bills currently yield 5.5 percent. Stock in Nina manufacturing is currently selling for \$70 per share. There is no possibility that the stock will be worth less than \$65 per share in one year. a. What is the value of a call

269. ## Chemistry

The solubility of compound A in ethanol is 0.4 g per 100 mL at 0C and 5.0 g per 100 mL at 78C. What is the minimum amount of solvent needed to recrystallize an 8.0 g sample of compound A? How much would be lost in the recrystallization? Show your work.

270. ## Chemistry

Why can a water-ethanol solution be used for recrystallization but not a water-hexane solution?

271. ## Math

Show me how to solve (-3.18)(-1)

272. ## Chemistry

The solubility of acetanilide in hot water (5.5 g/100 mL at 100C) is not very great, and its solubility in cold water (0.53 g/100 mL at 0C) is significant. What would be the maximum theoretical percent recovery from the first recrystallization of 0.5 g of

273. ## physics

A cara accelerates uniformly from rest to a speed of 21.9 km/h in 8.5 s. Find the distance it travels during this time.

274. ## Calculus

The line y=2x+b is tangent to the graph of y=x^1/2 at the point P=(a, a^1/2). Find P and determine b. I don't know what to do because they don't give you the x coordinate or anything to plug into the derivative. Help?

275. ## Physics

A gull is flying horizontally 8.17 m above the ground at 6.35 m/s. The bird is carrying a clam in its beak and plans to crack the clamshell by dropping it on some rocks below. Ignoring air resistance, what is the horizontal distance to the rocks at the

276. ## Chemistry

Carborundum (silicon carbide) boiling chips are better than calcium carbonate chips in the recrystallization of an unknown,why ?

277. ## Chemistry

Carborundum (silicon carbide) boiling chips are better than calcium carbonate chips in the recrystallization of an unknown,why ?

278. ## physics

Two cars are driving toward each other on a straight and level road in Alaska. The BMW is traveling at 115 km/h north and the VW is traveling at 54.0 km/h south, both velocities measured relative to the road. At a certain instant, the distance between the

279. ## Chemistry

• A student crystallized a compound from benzene and observed only a few crystals when the solution cooled to room temperature. To increase the yield of crystals, the students chilled the mixture in an ice-water bath. The chilling greatly increased the

280. ## Chemistry

A chemist conducted a recrystallization on 18.5 g of a solid and collected 12.5 g from the first, and 2.7 g from the second recrystallization. Show your calculation and answer the following questions: What is the percent recovery in the first

281. ## physics

A car starts from rest and travels for 4.1 s with a uniform deceleration of 2.1 m/s2. What is the final velocity of the car? Answer in units of m/s

282. ## Physics

With what speed relative to the rocks does the clam smash into the rocks? and With what speed relative to the gull does the clam smash into the rocks?

2x^2-8