# Questions Asked onDecember 5, 2010

1. ## Gilgamesh

How Does Gilgamesh respond to the death of Enkidu? a) He flees the city of Uruk to seek immortality b) He builds up the city of Uruk with monuments and massive walls to honor Enkidu c) He blames the harlot lass for brining this pain and suffering on Enkidu

2. ## physics

A gymnast of mass 63.0 {\rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch.Calculate the tension T in the rope if the gymnast climbs up the rope with an upward

3. ## physics

how do you convert 3x10^-3 rad to 10 min of arce

4. ## math probabilty

Find the (theoretical) probability of the given event, assuming that the coins are distinguishable and fair, and that what is observed are the faces uppermost. Six coins are tossed; the result is at most one head.

5. ## physics need help!

I really need help on this Q, don;t know what to do with multtiple complex forces: A jet plane is flying with a constant speed along a straight line, at an angle of 27.0° above the horizontal, as Figure 4.30a indicates. The plane has weight whose

6. ## PHYSICS

The space probe Deep Space I was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of

7. ## Probability

f two indistinguishable dice are rolled, what is the probability of the event {(3, 3), (2, 3), (5, 3)}? 1 What is the corresponding event for a pair of distinguishable dice? 2 {(3, 3), (2, 3), (5, 3)} {(3, 3), (2, 3), (5, 3), (3, 5), (3, 2)} {(3, 3), (2,

8. ## algebra

K*T=K*T How would I solve for T?

9. ## Chemistry

describe how you would make a 2.5L of a .100M KCL solution from a 5.5M stock solution

10. ## algebra

If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. m - 2n = 16, 4m + 4 = 1

11. ## math

Multiply and then simply by factoring (√2y)(√3)(√8y)

12. ## college Chemistry

Why was there condensation of the beaker of cold water when a blue flame was passes underneath? This experiment is from the Gas Burner experiment. A) the product of carbon dioxide from combustion (B) the product of hydrogen dioxide from combustion (C) left

13. ## math

Find 0.12 ÷12 calculation steps

14. ## chemistry

Extraction of caffeine: You had extracted 2 g of crude caffeine and you were in a hurry. Instead of doing the 6 successive extractions with 2ml portions of methylene chloride, you only did 2 successive extractions with 6 ml portions of solvent. Now,

15. ## chem

1. Explain the effects of the following factors on the relative reactivities of Sn1 and Sn2 reaction a.Nature of the carbon skeleton(primary, secondary, tertiary) b.Steric hindrance (primary vs hindered primary) c)Nature of the leaving groups d)Primary and

16. ## math

If the coordinate of A on the real number line is -2, find the coordinate of B if AB= 5 units

17. ## math

A,B are two points on a given line L.L is the midpoint of the section AB. find the coordinate of point B if the coordinate of A=7 and the coordinate of L=4

18. ## math

A,B,C are points on the line L, the coordinate of B=-2, c is a point that divides AB in the ration 2:3.if the coordinate of C=4, find the coordinate of A

19. ## marketing

Use the University Library or the Electronic Reserve Readings to locate a peer-reviewed article that reports original research. Search "major databases (e.g. - ProQuest)" in the Online Collection, and use the key search words, "research studies in" to

20. ## science

can anyone give me examples of energy intercoversions please

21. ## science

can anyone give me 10 examples or energy interconversions and how they work please thankyou.

22. ## math

the perimeter of an equilateral triangle is 9cm.how long is each side?

23. ## Physics

A bullet of mass 0.02kg is fired at a speed of 500m/s towards a fixed wooden block of thickness 10cm. The bullet penetrates the block and emerges with a speed of 200m/s. a) Find the average retarding force on the bullet when it is passing through the

24. ## chemistry

calculate the molarity of 18.0 ml of h2so4 in 2.0l of solution?

25. ## Psychology

Create an operational definition of self-confidence using peer reviewed articles as reference

26. ## Physics

A block of mass 0.5 kg rests on a smooth inclined plane. It is then pushed by a horizontal force of 16N. When the block has displaced 5m along the inclined plane. What would be the speed of the block if the plane is rough and a friction of 5N is acting on

27. ## Sci !!!ASAP!!!

How do people help plants ?

28. ## English

I need 30 sentences in the past

29. ## physics

what happens to the gravitational energy of a firefighter when he slides down the firepoles?

30. ## Chemistry

Why is graphite such a good conductor of electricity? Why is diamond the hardest naturally occurring substance?

31. ## geometry

the vertices of ABC are A(1,1) B(7,3) and C(2,6) write and equation of the line that contains the median from c to ab

32. ## chemistry

Predict the products of the chemical reaction aluminum + iron(III) oxide

33. ## chemistry

Predict the product: hydrogen peroxide (catalyzed by manganese dioxide)

34. ## Math

If a grade was drawn at random from the data shown below, what is the probability that the grade is not a B? Grade Frequency A 2 B 8 C 11 D 2 F 1 I think it is 1 out of 5 or 4 but I am not sure? Please help :) Thank you much!

35. ## chemistry

Predict the the product for the following reactions. zinc + hydrochloric acid sulfuric acid + sodium hydroxide sodium + hydrogen acetic acid + coppper

36. ## chemistry

How many of grams of aluminum would be produced from the decomposition of 21.0 g of Al2O3

37. ## comm155

Write a paragraph, using several sentences, to describe a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. ·Use at least five different pronouns in your sentences.

38. ## Math

There are three distinct ways to add four positive odd numbers to obtain 10: 1 + 1 + 3 + 5 = 10 1 + 1 + 1 + 7 = 10 1 + 3 + 3 + 3 = 10 Here, distinct means that changing the order of the numbers on the left-hand side of an equation does not count as a new

39. ## Math

There is a 4 by 4 grid of points. Each pair of horizontally adjacent or vertically adjacent points are separated by a distance of 1 unit. How many circles of radius 1 pass through exactly 2 of these grid points? Justify your response. (Note: the circles

40. ## Math

Find, with justi cation, the smallest integer whose rst digit is 1 and which has the property that if this digit is transferred to the end of the number, then the number is tripled

41. ## physics

a simple pendulum with the length of 2.08m oscillates. the acceleration of gravity is 9.8 m/s^2.how many complete oscillations does the pendulum make in 3.75 min?

49. ## 6th grade

who ordered the great sphinx to be built

50. ## math

Identify the proportion listed below that solves this problem. It will take 13 people to pick 112 watermelons in a day. How many people will it take to pick 200 watermelons in a day?

51. ## Math

If P(B)=1/5 compute P(not B)? So I am thinking it may be P(not B)=0.2? Is this right?

52. ## Math

if the angle between the two lines 3x-5y-1=0 and Kx-y=3 is 45, then find the value of k

53. ## math

Convert to scientific notation: 0.000678

54. ## english

can you answer this one into correct dangling modifier.Having wrapped up the package carefully it should be tied.

55. ## English

Hello. I need some help from a native speaker of English. 1)Is it possible to say "to make a (peace) treaty" or is it "to conclude a treaty"? 2)is it possible to say "to make a visit to Mexico"? 3)is it possible to say "bipartite relations (between the

56. ## Statistics

True or False In Regression Analysis if the variance of the error term is constant, we call it the Homoscedasticity property.

57. ## Statistics

Use the following results obtained from a simple linear regression analysis with 12 observations.  ￼  =37.2895-(1.2024)X  R2=.6744 sb1=.2934  Test to determine if there is a significant negative relationship between the independent and dependent

58. ## science

discuss the laws of electrostatic charges. for each of these laws, describe a lab activity you did which demonstrated the law

59. ## com155

What role does eduction play in succesful financil planning? Me going back to school plays a major role in finacila planning

60. ## com155

What role does eduction play in succesful financil planning? Me going back to school plays a major role in finacil planning. Is this correct in verb tense?

61. ## Math

A)how do I find an inverse variaton equation that model: Length(in.) 4 6 8 9 10 Breaking weight(pennies)24 16 13 11 9 B)Explain how your equation shows that breaking weight decreases as length increases. Is this pattern reasonable for this situation?

62. ## ethics

What if the doctor really can't afford to treat someone who cannot pay? What if the cost of the care is too much to bear? What then?

63. ## Chemistry

What is the solubility equilibrium for Mn3(PO4)2? Isn't it this.. Mn3(PO4)2 (s) --> 3Mn^+2 (aq) + 2PO4^-3 (aq) but i keep getting it wrong. suggestions?

asked by Savannah S.
64. ## chemistry

using the lewis dot structures, predict the formula for the compound formed between lithium and chlorine.

65. ## Chemistry

The volume of 02 collected over water at 25 degree C and 740 torr, was 250 mL. What volume will the dry 02 occupy at STP? (Vapor pressure of water at 25 degre C is 23.8 torr).

66. ## Science

How can i explain the life cycle of nylon?

67. ## Chemistry

How many unpaired electrons are in the electron structure of 24 Cr, [Ar]4s1 3d5

68. ## Chemistry

Write equations for the following reactions: the combustion of propane the incomplete combustion of propane to for CO and water the complete combustion of 8,8-dimethylpropane in oxygen

69. ## physics

What force is necessary for a person to hold a 50 kg mass over their head?

70. ## Chemistry

how many moles of oxygen are needed to react with 1.6 moles of isopropyl alcohol, CcH7OH Equation is 2 C3H7OH + 9 02 ->6 CO2 + * H2O

71. ## Chemistry

sorry How many moles of exygen are needed to react with 1.6 moles of isopropyl alcohol, C3H7OH Equation is 2 C3H7OH + 9 02 -> 6 CO2 + 8 H20

72. ## Chemistry

If .002 L of .650 M NaOH are added to 1.0 L of 0.9 M CaCl2 what is the value of the reaction quotient and will a precipitate form? I keep getting 0.0011 because I thought the answer was [Ca+][OH-] but that's not correct, I think I'm missing a final step

73. ## chemistry

2 Na2 + @H20 -> 4NaOH + 02 Whtes 200. g of Na202 were reacted, 32.0g of 02 were collected The yield of 02 colleced how many percentages?

74. ## Chemistry

What is the atomic mass of an element if one hatom has a mass of 2.107 x 10x10 to the -22 power g

75. ## Chemistry

how do I write the equation for How many grams of sodium nitrate are required to form 90.0 grams of water?

76. ## Chemistry

Wen 4Ag + 2H2S + 02 -> 2Ag2S + 2H20 and the reactants inclde 12 mol Ag, 6 mole of H2S and 96 G of 02 the limiting reactant is?

77. ## Chemistry

What volume will .00 L of Gas occupy if the temperature is changed form 30 degree C to 90 degree C (P is constant)

78. ## chemistry

what is the partial pressure of 02 collected over water at 25 degree C and 630 torr (vapor pressure of H20 at 25 degree C is 23.8 torr)

79. ## statistics

One example of hypothesis testing would be to conduct a testing on how many hours a week a typical truck driver might drive.

80. ## physics

What force is necessary for a person to hold a 50 kg mass over their head?

81. ## Chemistry

An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

82. ## Chemistry

An aqueous mixture containing starch (a colloid), NaCl, glucose, and albumin (a colloid) is placed in a dialyzing bag and immersed in distilled water. Which of the following correctly describes the location of the indicated substance after dialysis?

83. ## adv. alg.

list all roots of 1) x^5-3x^4+3x^3-x^2=0 2)8x^3-12x^2+6x-1 3) x^4=16

84. ## Precalculus

Evaluate all six trigonometric functions at t, where the given point lies on the terminal side of an angle of t radians in standard position. (40/41, -9/41)

85. ## college

can someone please give me an example of a situation in which personal or religious beliefs might conflict with something that may be asked of you professionally? What should you do in this situation?

86. ## ethics

What are some examples of cultural differences around the world that can affect business practices? Should a business change practices based on cultural sensitivities? Why or why not?

87. ## chemistry

What volume of 0.115M NaOH is required to reach the equivalence point in the titration of 25.00 mL of 0.200M of HF? Ka(HF)=7.4 x 10^-4

88. ## physics HELP

A jet plane is flying with a constant speed along a straight line, at an angle of 27.0° above the horizontal, as Figure 4.30a indicates. The plane has weight whose magnitude is 86500 N, and its engines provide a forward thrust of 103000 N. In addition,

89. ## accounting

Calculate the rate of depreciation for the asset with the help of given data.? Cost of the asset Rs1,20,000 Residual value Rs40,000 Expected life 5 years

90. ## chemistry

3 CH3NH2 + 11 HNO3 ---> 3 CO2 + 13 H2O + 14 NO RATE OF DISAPPEARANCE OF NITRIC ACID IS 20M/min. what is the rate of reaction? at what rate is the concentration of carbon dioxide changing?

91. ## chem 2

What concentration of NaF is required in order to convert a 0.15M HF solution to a buffer with a pH of 5.50?

92. ## physics

An original stationary car with a mass of 1500 kg reaches a velocity of 15 m/s/s after starting. what is the car's acceleration?

93. ## Computer Science

Write an Assembly program that reads in a number of cents. The program will write out the number of dollars and cents separately.

94. ## Gen. Chemistry

What is the original molarity of a solution of weak acid whose Ka= 3.5 x 10^ -5 and pH is 5.20... I'm lost, please help!

asked by Savannah S.
95. ## physics

what equation would you use if you wanted to find the net x-direction force on the box example: here is the problem... A box of mass 24.0 kg is subject to an applied force of 245 N with a depression angle of 31.2°, and it accelerates to the right. The

96. ## Precalculus

State whether or not the equation is an identity. Prove your statement. sin(x)/cos(x)+ cos(x)/1+sin(x)

97. ## Physics

A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance of 5.00 cm from its unstretched position when the system is in equilibrium. If the spring constant is 54.1 N/m, determine the mass of the object.

98. ## Physics

A object-spring system oscillates with an amplitude of 4.0 cm. If the spring constant is 210 N/m and object has a mass of 0.50 kg, determine each of the following values. (a) the mechanical energy of the system J (b) the maximum speed of the object m/s (c)

99. ## Precalculus

State whether or not the equation is an identity. Prove your statement. sin(x)/cos(x)+ cos(x)/1+sin(x)=sec(x) (sorry about that)

100. ## physik

was kÃ¶nnte passieren,wenn man aluminiumstÃ¤be in eine betonmauer einarbeiten wÃ¼rde?

101. ## religious study

What is “the problem of evil,” and why is it particularly problematic for Western, monotheistic religious traditions? I am able to address "the problem of evil"; however, I do not know the second part of the question; can someone kind enough to give me

102. ## English

Thank you very much for your corrections. Here are some more sentences for you to check. 1)The mirror claims to have no preconception since it projects whatever it sees umisted by love or dislike.It reflects a woman who is becoming (growing, getting old).

103. ## stat

7. A researcher selects a random sample. A 90% confidence interval for a population mean  A) is an interval with margin of error ± 90%. B) has the property that if we repeatedly selected our random sample in exactly the same way, each time constructing

104. ## physics

A hotdog vendor named Sam is walking from the southwest corner of Central park to the Empire State Building. He starts at the intersection of 59th Street and Eighth Avenue, walks 3 blocks east to 59th Street and Fifth Avenue, and then 25 blocks south to

105. ## physics

A treasure map you uncovered while vacationing on the Spanish Coast reads as follows: "If me treasure ye wants, me hoard ye'll have, just follow thee directions these. Step to the south from Brisbain's Mouth, 6 paces through the trees. Then to the west, 10

106. ## physics

The volume of the Earth's oceans is approximately 1.4×1018 m3. The Earth's radius is 6.4×106 m. What percentage of the Earth, by volume, is ocean?

107. ## physics

Density is calculated by dividing the mass of an object by its volume. The Sun has a mass of 1.99×1030 kg and a radius of 6.96×108 m. What is the average density of the Sun?

asked by amber gorman
108. ## Operation management

1. Based on your reading and research explain whether or not you believe ERP and MRP are the only resource planning processes applicable to manufactured processes? 2. Can either ERP or MRP be used for service industries or can they only be used for

109. ## physics

A Boston cab driver picks up a passenger at Fenway Park, drops her off at the Fleet Center. Represent this displacement with the vector D. What is the displacement vector from the Fleet Center to Fenway Park? a)D b)2D c)0 d)-D aka: D=vector d in the

asked by stephanie m.
110. ## science

a young girl with a mass of 46 kg is hanging motionless from a tree branch. what is the net force on the girl

111. ## CJS 210

What are the ethical standards in policing? I'm not exactly understanding what they mean by this

112. ## physics

An aircraft carrier sails northeast at a speed of 6.0 knots. Its velocity vector is v. What direction and speed would a ship with velocity vector –v have? speed should be in knots and direction should be one of the following: northwest,

asked by emily li
113. ## accounting

What benefits do you see for the U.S. economy in tax-sparing credits? Should it be expanded or reduced? Why or why not? The North American Free Trade Agreement (NAFTA) has tax consequences. Discuss the costs and benefits as you see them for the U.S. from

114. ## Biology

If a heterozygote is crossed with a recessive individual, what % of their offspring will be recessive (have light hair)?

115. ## communication

Many businesses now have a Twitter account, MySpace account, or another social media tool they use to attract and maintain business. What value do social media offer for professional use? How has your commercial behavior been affected by social media

116. ## Physics

A spring stretches 4.3 cm when a 13 g object is hung from it. The object is replaced with a block of mass 22 g that oscillates in simple harmonic motion, calculate the period of motion.

117. ## Physics

A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 28.0 s. (a) How tall is the tower? m (b) If this pendulum is taken to the Moon, where the free-fall

118. ## physics

Three masses are arranged on a flat surface as shown. Two of the masses are as follows: m2 = 16.3 kg and m3 = 66.5 kg. A horizontal force of 519 N applied to m2 accelerates the masses across the floor, which has a coefficient of friction of μ = 0.312, at

119. ## Composition

I would like to get a second opinion if I am correct. I had to write five sentences about the role of education in successful financial planning, in which I correctly use a different verb tense in each sentence. Here is what I wrote. Our education plays

120. ## Precalculus

1.Write the expression as a sum or difference. cos(5x)cos(-4x) 2.Write the expression as a product. cos(4x)-cos(12x)

121. ## Exponents

GRE question - What is greater z or 60? z is the degrees of a one of the congruent sidesAn isoceles triangle

122. ## physics

Does the multiplication of a scalar and a vector display the commutative property? This property states that the order of multiplication does not matter. So for example, if the multiplication of a scalar s and a vector r is commutative, then sr = rs for

123. ## Math

A rectangular flowerpot is 20 inches long 8 inches wide and 6 inches high. true or false if andy fills the flowerpot 2/3 fullof potting soil the expression 2/3(20 + 8 + 6) could be used to find the amount of potting soil he needed

124. ## Math

Fill in the blank so that the given statement is true. The median is 77 65,68,78,82,89,__

125. ## Science

What is a 3 dimensional ecosystem? What is a 2 dimensional ecosystem?

126. ## Physics

omar throws a rock down with speed 12 m s from the top of a tower. The rock hits the ground after 2.0 s. What is the height of the tower?

127. ## Physics

An automobile tire has a volume of 0.0185 m3. If the pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire?

128. ## self-reflection essay

am writeing self-relection essay abt the theme self perceiving society,society perceiving self and i don't know how to start it off?

129. ## Physics

A vertical cylindrical cylinder, closed at the bottom end, contains 0.0100 moles of gas. It is fitted at the top with a piston, which can move freely. The mass of the piston is 14.0 kg and the initial height of the piston above the bottom of the cylinder

130. ## french

what does Elle travaille dans un hotel mean in english?

132. ## Math

Fill in the blank so that the given statement is true. The median is 77 65,68,78,82,89,__

133. ## self-reflection essay

am writeing self-relection essay abt the theme self perceiving society,society perceiving self, i dontknow how to start my outline to starte the thesis

134. ## Precalculus

State whether or not the equation is an identity. Prove your statement. sin(x)/cos(x)+ cos(x)/1+sin(x)=sec(x)

135. ## physics

what equation would i use if i wanted to find the magnitude for this problem A box of mass 32.0 kg is subject to an applied force (FA) with an elevation angle of 39.9°, and it accelerates to the right at 6.31 m/s2. The horizontal surface has a coefficient

136. ## algebra

solve 1-5= -4m^sq

137. ## chemistry

lithium + gold(III) chloride +lithium chloride + gold need to balance equation

138. ## self-reflection essay

what is self perceiving society mean

139. ## English

I forgot to include the following statements. Thank you. 1) You are fast like a lighning. Better: You are as fast as lightning. 2)Is it possible to write: "I didn't correct this paragraph because it was your first draft. You re-wrote it neatly (?) on your

140. ## Science

If India had a population of 1.05 billion in 2002 with a steady growth rate of .9%, when would its population reach 4.2 billion?

141. ## physics

okay the question i got was asking the lengths of the first, second, and third waves of a standing wave, of a string that is fixed at both ends. the strings length is 2.38 meters. Ive already figured out the three lengths, being 4.76, 2.38, and then 1.59.

142. ## physics

okay the question i got was asking the lengths of the first, second, and third waves of a standing wave, of a string that is fixed at both ends. the strings length is 2.38 meters. Ive already figured out the three lengths, being 4.76, 2.38, and then 1.59.

143. ## Math

johnny is directly in front of dougie, who is playing goalie as shown. johnny is 2.8m from both goal posts. he is also three times as far from dougie as dougie is from either post. he is also three times as far from dougie as dougie is from either post.

144. ## Transitional Math

Richard took a loan of $10000 at a rate of 5%. If he paid$2500 in interest, how long did it take him to pay off the loan?

145. ## composition

I made a correction in my previous paragraph. I want to make sure I identified the verb tenses correctly. Thank you in advance for your thoughts. Our education plays (simple present tense) a significant role in our future financial planning. I have taken

146. ## Physics

Need help with part b... I got a to be k = 94.985 N/m I can't figure out how to go about doing part b.. A platform of mass 0.79 kg is supported on four springs (only two springs are shown in the picture, but there are four altogether). A chunk of modeling

147. ## Algebra uno help please :)

Write an equation of the line that passes through the given point and is parrel to the given line. 1. (-1,3) Y=2x+2 I'm thinking that you just plug in -1 and 3 for x and y. So, 3=2(-1)+2 Correct? Please help me. :) Thank you -Allyson

148. ## chem

Extraction of caffeine: You had extracted 2 g of crude caffeine and you were in a hurry. Instead of doing the 6 successive extractions with 2ml portions of methylene chloride, you only did 2 successive extractions with 6 ml portions of solvent. Now,

149. ## huckleberry finn

in the book huckleberry finn manys words are used that mean something like "to beat someone" for example to lick. i need to find 8 more of words that are used to mean "to beat" if you know any and the page number/chapter it is used in the book that would

150. ## chemistry

1. Explain the effects of the following factors on the relative reactivities of Sn1 and Sn2 reaction a.Nature of the carbon skeleton(primary, secondary, tertiary) b.Steric hindrance (primary vs hindered primary) c)Nature of the leaving groups d)Primary and

151. ## Physics

When a drag strip vehicle reaches a velocity of 60 m/s, it begins a negative acceleration by releasing a drag chute and applying its brakes. While reducing its velocity back to zero, its acceleration along a straight line path is a constant -7.5 m/s2. What

152. ## writing

i really need help of this writing assigment. i have been working on it for hours now and my brain is just jammed. okay .. the assigment is to Write an eight sentence paragraph that fully develops the topic of how drunk driving can be stoped. this is what

153. ## Chemistry

How many moles of NaOH must be added to 1.0 L of 1.4 M HC2H3O2 to produce a solution buffered at each pH? (a) pH = pKa mol (b) pH = 3.07 mol (c) pH = 5.15 mol

154. ## Chemistry

What volumes of 0.46 M HNO2 and 0.54 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.40? a) HNO2 b) NaNO2 answer in L

155. ## physics

hummingbird beats wings with frequency of 80.0 Hz. What is period of bird's flaps? I know T = 1/f , but what is the label/units for the answer?

156. ## geometry

the area of a triangle is 147 square inches and its height is 1.5 times its base. find the base and the height of the trianle.

157. ## writing

What does "seek to Serve" mean?

158. ## 11th grade

In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.17 x 10^6 m/s. find the central force acting on the electron as it revolves in a circular orbit of radius 5.42 x 10^-11m.

159. ## Algebra one help, please.

Determine which lines, if any, are parrell or perpindicular linea= y=4x line B= y=-1/4x line c= y= 4x-1 I think line B and A are parrell. Am I correct? Please help me, thank you.

160. ## physics

A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 6.2 m higher than A, with speed v/2. Calculate the maximum height reached by the stone above point B.

161. ## physics

x=12cm and y=14cm, what is 0

162. ## Physics

A 500 g block is released from rest and slides down a frictionless track that begins h = 1.70 m above the horizontal, as shown in Figure P13.56. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring

163. ## Physics

A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. If bats emit a chirp at a frequency of 50.0 kHz, and if the speed of sound in air is 340 m/s, what is the smallest insect a

164. ## Physics

I need help with part b... I found in part a that delta L is .29568m and I think I might be doing something wrong with the units because I can't get the right answer. A 156 g hockey puck is attached to a rubber band and rotated with an angular speed of

165. ## Physics

The free-fall acceleration on Mars is 3.7 m/s2. (a) What length pendulum has a period of 4 s on the earth? cm What length pendulum would have a 4 s period on Mars? cm (b) A mass is suspended from a spring with force constant 10 N/m. Find the mass suspended

166. ## Physics

A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 28.0 s. (a) How tall is the tower? m (b) If this pendulum is taken to the Moon, where the free-fall

168. ## physics

A source of sound (1200 Hz) emits uniformly in all directions. An observer 2.99 m from the source measures a sound level of 41.1 dB. Calculate the average power output of the source.

169. ## science

a fan uses 150j of mechanical energy, 20j of heat and 75j of sound energy a) what is the total input energy b) what is the total useful output energy c)what is the total wasted energy d) what is the energy efficiency e) what percent of the energy was

170. ## Physics

A 45 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.3 * sin( 0.6 * t ) where y is measured in meters and t in seconds. (a) What is the spring constant in N/m? k = N/m .016 NO HELP: You are

171. ## physics

A wheel is roatating freely at an angular speed of 800 rev/min on a shaft of negligible moment of inertia. A second wheel initially at rest and with twice the moment of inertia of the first, is suddenly coupled to the same shaft. (a) what is the angular

172. ## physics

A steel ball bearing the radius 1 cm is rolling along a table with speed 20 cm/sec when it starts to roll up an incline. How high above the table level will it rise before stopping? Ignore friction losses.

173. ## physics

A solid sphere of radius 3 cm and mass of 100 g rolls down a 30 degree incline from a height of 1 m. A hoop of the same mass and radius rolls down the same incline from the same height. What is the linear velocity of each body at the bottom of the incline?

174. ## Math

Fill in the blank so that the given statement is true. The median is 77 65,68,78,82,89,__

180. ## 11th grade

Consider two vectors where F1 = 38 N, F2 = 58 N, and = 240o and = 25o, measured from the positive x-axis with counter-clockwise being positive. What is the magnitude of the equilibriant?

181. ## Calculus

Find the interval(s) where the function is increasing where and it is decreasing. f(x)=sin(x+(pi/2)) for 0≤x≤2pi so my derivative is f'(x)=cos(x+(pi/2))? and my critical number is -pi/2?

182. ## English-No Country For Old Men

I have an essay to write but I need some help on this question. "Comment on both Sheriff Bell's and Moss's wives. How are they alike? What is your opinion of them? What do you learn about each woman's relationship with their husband because they are placed

183. ## Accounting Specialized Journals

Store owner makes a $80.00 purchase, goods for resale, and uses check$143. Using Specialized journals, general ledger and subsidiary account, what is the correct posting please.

184. ## Finance

Calculate die after-tax cost of debt under each of the following conditions: a. Interest rate of 13%, tax rate of 0% b. Interest rate of 13%, tax rate of 20% c. Interest rate of 13%, tax rate of 35%

297. ## math

the avreage of annes saras and julies test score is 72 julie scored 10 and anne scored 10 points higer than sara. what were annes and sara scores?

298. ## science

how much does gravity affects my cannon shot?

asked by cannon ball
299. ## English

Can you tell me if all my verbs are correct? Not one of the ushers knows where the lounge is. Mumps is a common childhood disease that causes swelling in glands in the neck. Politics is always a popular subject both to debate and to study at college. The

300. ## algebra

the number of cats that are homeless can be modeled by the equation N= 2.1t squared - 82t + 95 where N is the number of cats that are homeless and t=0 set as the current year.Use the quadratic model to find the number of years from now until the number of

301. ## physics

A box of books weighing 229 N is shoved across the floor by a force of 420 N exerted downward at an angle of 35° below the horizontal.If µk between the box and the floor is 0.57, how long does it take to move the box 9 m, starting from rest? (If the box

302. ## chemistry

How many mL of a 0.90% (m/v) NaCl stock solution will you need to to prepare 250 mL of a 0.225% m/v NaCl solution?

303. ## science

A 75-kg person on skis is going down a hill sloped at 30.0°. The coefficient of kinetic friction between the skis and the snow is 0.15. How fast is the skier going 10.0 s after starting from rest?

304. ## Advanced Physics

If wind blows at a speed of 30 m/s over the roof of your house, what is the pressure diference on your roof between the air inside and the air outside? What net force does this produce on a roof having an area of 175 m^2? 1.3 kg/m^3 is the density of air.

305. ## math

-16=2.5k

could you mark each verb used in bold. identify the specific tense used in parentheses. I have seen many examples of different saving plans. I planned on using these strategies in my personal life.

307. ## ASU

A weightlifter performing a curl with a 320 N barbell stops the lifting motion with his forearms in a horizontal position. (a) If the line of action of the weight of the barbell is 27 cm from the axis of rotation (elbow joint), what is the magnitude of the

308. ## 11th grade

A box of books weighing 229 N is shoved across the floor by a force of 420 N exerted downward at an angle of 35° below the horizontal.If µk between the box and the floor is 0.75, how long does it take to move the box 7 m, starting from rest? (If the box

309. ## US History

The Government and churches have demoralized, dehumanized massacred , robbed, raped, promised, made treaty? after treaty, and lied to us ... We must now destroy this political machine that man has built to prevent us from self-determination. " by Dennis

310. ## BIOMECHANICS

The NCAA requires that a basketball dropped from a height of 1.83 m (measured to the bottom of the ball) bounce to a height of 1.24 to 1.37 m (measured to the top of the ball). Assuming the diameter of a typical basketball is 0.25 m, calculate the

311. ## Chemistry

A piece of solid carbon dioxide, with a mass of 6.8 g, is placed in a 4.0-L otherwise empty container at 21°C.

312. ## to Anonymous, <3, and Thanks to all Jiskha Teacher

We do not allow students to be successful imposters of our tutors. You have been banned from posting for this reason. Perhaps in a few days, you'll be unbanned ... to see if you've learned acceptable online behavior. =(

313. ## Biomechanics

A weightlifter performing a curl with a 320 N barbell stops the lifting motion with his forearms in a horizontal position. (a) If the line of action of the weight of the barbell is 27 cm from the axis of rotation (elbow joint), what is the magnitude of the

314. ## english

is it grammatically correct to write My great aunthas lived at 1430 green street

315. ## chemistry

the much used drug cocoaine is an alkaloid. Alkaloids are noted for their bitter taste, and indication of their basic properties. Cocaine, C17H21NO4 is soluble in water tot he extent of 0.17 g/100 ml solution, and a saturated solution has a pH of 10.08.

316. ## Kinesiology

Joey weighs 77 lb and sits on a seesaw at a distance of 30 inches from the fulcrum. Jenny weighs 67 lb and sits on the opposite side of the seesaw at a distance of 48 inches from the fulcrum. Mikey weighs 30 lb and wants to play but doesn’t know where to

317. ## chemistry

Acetylsalicyclic Acid, HC9H704, is the active component is aspirin. Two extra strength aspirin tablets, each containing 500 mg of acetylsalicylic acid, are dissolved in 325 ml of water. What is the pH of the solution? (Assume Ka=3.3x10^-4)

318. ## chem

A 1.00 L volume of buffer is made with concentrations of 0.350 M NaCHO2 and .550 M HCHO2. a) What is the initial pH of the buffer? b) What is the pH after the addition of .0050 mol HCL? c) What is the pH after the addition of .0050 mols NaOH?

319. ## chemistry

Given .300 L of a buffer solution that is .250 M HC2H3O2 and .50 M NaC2H302, what is the new pH if .0060 mol HCL is added? what about .0060 mol NaOH?

320. ## chemistry

Explain what is required to create a buffer that needs to protect the pH between 8.1 and 8.5. EXPLAIN IN DETAIL

321. ## General Physic

The time it takes for an object dropped from the top of cliff A to hit the water in the lake below is twice the time it takes for another object dropped from the top of cliff B to reach the lake. If it takes 2.30 s for the object to fall from cliff A to

323. ## chemistry

Prepare 250mL of 2.00M CuSO4 from CuSO4 x 5H2O

324. ## chemistry

How many moles are in 3.0L of NO gas at STP?

325. ## MATH

Someone please help me not sure if I even know what I am doing with any of this. write the following ratios in simplest form 5 3/5 to 2 1/10 5 3/5 2 1/10 x 100/100 = 8/20 = 2/5 the ratio of 7 dimes to 3 quarters 7/3 x 100/100 = 700/300 = 175/75 solve the

326. ## Physics

If a large housefly 3 m away from you makes a noise of 43 dB, what is the noise level of 1200 flies at that distance, assuming interference has a negligible effect? Noise level of 1200 flies = ??dB HELP: Using the formula for decibels and the given

327. ## chemistry

describe the formation of a sr ion as its bons with chlorine to form SrCl2 and properties the compound will posess

328. ## science

A wagon with a weight of 300N is accelerated across a level surface at 0.5 m/s . What net force acts on the wagon

329. ## science

Why do I have brown eyes? can it change color?

330. ## chemistry

Prepare 250mL of 2.00%(w/v) CuSO4 from CuSO4x5H2O

The premiters of two equilateral triangles are in the ratio 2:3. If the perimeter of the smaller triangle is 16 cm what is the measure of a side of the larger triangle?

332. ## Chemistry Lab Math

Prepare 600mL of a 100mM solution of glucose in 0.9% NaCl.

333. ## Chemistry- Buffers

a buffer is prepared by mixing .208 L of 0.452 M HCl and 0.5 L of 0.4 M sodium acetate. When the Ka= 1.8 x 10^-5 I figured out that the pH= 4.74 but then it asks how many grams of KOH must be added to the buffer to change the pH by .155 units?

334. ## science

describe how radioactive isotopes decay

335. ## Spanish

1. "Perdón, ¿cuánto ____ este suéter?" "Veinte pesos." a. cuestan b. cuesta c. compra d. va A or B? 2. Busco una camisa verde ________. a. a tí b. a mí c. conmigo d. para mí D? 3. Quiero comprar unas manzanas? ¿_______ cuestan? a. Cuánta b.

336. ## English

Hi for my english class, we have to make an invention using cheap material that is useful, original, and provides a solution to a problem. We actually have to show the class like a prototype of it and I have no idea what to do! Mines on tuesday and I'm so

337. ## chemistry

Prepare 600mL of a 100mM solution of glucose in 0.9% NaCl. Also need to prepare the 0.9% NaCl solution.

338. ## Math

To conduct a scientific experiment, students need to mix 90 mL of a 3% acid solution. They have a 1% and a 10% soulution available. How many mL of each of the two solution must they combine to pruduce 90mL of the 3% solution?

339. ## chemistry

A student wants to determine of an irregularly shaped peice of sodium metal . The student is warned not to use water displacement to find the volume of the peice of sodium . Explain the reason for the warning and pffer a effective solution to the students'

340. ## Math

The number is between 3 and 10, you can make exactly 3 arrays with this number and it's not 9. What is it?

341. ## Math

Which of the following shapes could not represent a top, front, or side view of a pentagonal prism? a. A pentagon b. A triangle c. A square d. A rectangle

342. ## chemistry

How much 2.5mM solution of NaCl can be made from 30g of this pure salt?

a presentation conclusion has one purpose: to summarize your key points. True or false

asked by Marisela Cordova
344. ## Physics HELP!

A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end, what is the tension in each chain when the boy sits .75 m from one end and the girl .5 m from the other end?

345. ## Chemistry

The melting point of aspirin : 128-137Celsius degree. The melting point of the crude aspirin was measured to be 128 Celsius degree. What does it indicate about the purity of the product?

346. ## aLGEBRA

Tracy wants to purchase custom-made bumper stickers to advertise her business. Two websites offer different deals: Website A: Pay a fee of $116.00, plus$0.50 per bumper sticker or Website B: Pay a fee of $99.50, plus$0.65 per bumper sticker At least how

asked by math help
347. ## algebra

Solve and check all proposed solutions. Show work for solving and for checking. x+1/x-1 - 2/x^2-x=0

asked by math help
348. ## physics

A 45 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.3 * sin( 0.6 * t ) where y is measured in meters and t in seconds. (a) What is the spring constant in N/m? k = N/m .162 NO HELP: You are

349. ## Chemistry

if 30.0 grams of molten iron (III) oxide reacts with 275 grams of aluminum, what is the mass of the iron produced.

350. ## Chemistry

Given the balanced equation, how many milliliters of oxygen gas at STP are released from the decomposition of 5.05 g of calcium chlorate?

351. ## Chemistry

Consider the following chemical equation: HgO(s) → Hg(l) + O2(g) How many milliliters of oxygen gas at STP are released from the decomposition of 3.00 g of mercuric oxide?

352. ## Chemistry

Consider the following chemical equation. MnCl2(s) + H2SO4(aq) → MnSO4(aq) + 2 HCl(g) How many grams of manganese(II) chloride must react with sulfuric acid to release 50.0 mL of hydrogen chloride at STP?

353. ## Chemistry

Consider the following chemical equation. H2(g) + I2(g) → HI(g) Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen iodide are produced from 825 mL of H2?

354. ## Chemistry

Consider the following chemical equation. Cl2(g) + O2(g) → Cl2O3(g) Assuming all gases are at the same temperature and pressure, how many milliliters of oxygen gas must react to give 3.50 L of Cl2O3?

355. ## Chemistry

Consider the following chemical equation. SO2(g) + O2(g) → SO3(g) What volume of sulfur dioxide gas reacts with 37.5 L of O2? The reaction conditions are 875°C and 1.00 atm pressure.

356. ## statistics

15.34 In a four-digit lottery, each of the four digits is supposed to have the same probability of occurrence. The table shows the frequency of occurrence of each digit for 89 consecutive daily fourdigit drawings. Research question: At á = .01, can you

Which statement is not true? Two or angles that are supplementary have a sum of 180 or Two angles that are complementary have a sum ot 45

358. ## bonar law

Colonel Harry a. Froboess of Switzerland jumped upward and outward from a windonw of a blimp and landed in a body of water on June 22, 1936. His jump was 120m, about the height of a 40-storey building. The path of his jump can be represented by the

359. ## Algebra

Four circles with centers A,B,C,and D are mutually tangent. The areas of circles A,B,C, and D are 25pi, 100pi, 16pi, and 225pi respectively. How many units are in the perimeter of quadrilateral ABCD?

360. ## math

A rectangular skating rink measuring 30m by 20m is doubled in area by adding a strip at one end of the rink and a strip fo the same width along one side of the rink. Find the width of the strips if the enlarged rink is still rectangular.

361. ## geometry

In right triangle ABC, angle A=3, angle B=60, and angle C=90. Find AB with AC is 12 ?

362. ## MATH

A triangle with two congruent sides and two angles that both measure 45 is a.scalene and right b.isosceles and acute c.isosceles and right d. Equilateral and acute

363. ## college

1. How did U.S. manufacturers become vulnerable to offshore outsourcing? Give examples to support your answers.

364. ## math

Find the value of x. Give answer in simplest radical from. (It's a triangle split into 3 parts)

365. ## 7th grade

How are landform, like dells, formed?

366. ## 10th grade

jordan has 2 quarters, 1 nickel, and 3 dimes. if he took 1 out and then a second one without replacing the first coin, what is the probability that both coins were dimes?

367. ## Chemistry

Describe the spectrum of the light from a fluorescent lamp and from an incandescent (tungsten filament) lamp, and try to explain what you observe. So fluorescent lamps use electricity to excite mercury vapour, and the excited atoms produce short-wave UV

368. ## chemistry

If the heat of fusion for ethyl alcohol is 26 cal/g, how many grams must freeze to release 780 cal?

369. ## math

Suppose two dice (one red, one green) are rolled. Consider the following events. A: the red die shows 5. B: the numbers add to 4. C: at least one of the numbers is 3. D: the numbers do not add to 10. Express the event "The numbers do not add to 4." in

370. ## physics

a 40 kilogram barrel is rolled up a ramp 10 meters long to a height of 5 meters how much work was done?