# Questions Asked onOctober 22, 2011

1. ## Chemistry

Without calculating any frequeny values, select the highest frequency transition in the hydrogen atom. 1. From n= 4 to n= 6 2. From n=6 to n=8 3. From n=9 to n=11 4. From n=11 to n=13

2. ## physics

A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 94.0 kg. The mass of the rock is 0.350 kg. Initially the wagon is rolling forward at a

3. ## physics

Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 720 km above the surface of the Moon, where the acceleration due to gravity is 0.839 m/s2. The radius of the Moon is

78. ## physics

An object that has a mass of 36.0 kg is pushed along a horizontal surface with a force of 85.0 N at 30 degrees. If the force of friction is 52.0 N, what is the magnitude of the acceleration of the object?

79. ## Math/Statistics

STATISTICS PLEASE HELP!!!!! I am sorry this is jy second time posting, but I really need help. I have tried contacting my teacher and classmates with no luck. Please just steer me in the right direction!: Suppose cars arrive at Burger King's drive-through

80. ## Science

Ms. Sue can you please help me with this assignment? I would really appreciate it. Final Project: Mitigation Strategies and Solutions · Resources: Appendix A, F, and G · Due Date: Day 7 [Individual forum] · Use the topic you chose as an environmental

81. ## physics

there is a massless rope that is pulled over a frictionless pulley that is suspended high above the ground one end of the rope is tied to a heavy block with a mass of 483 kg the free end is climbed by a person with a mass of 102 kg who starts from rest. If

82. ## Chemistry

A solution with pH = 4 has 1. relatively high concentration of OH- 2. relatively low concentration of H3O+ 3. relatively high concentration of H3O+ 4. zero concentration of OH-

83. ## Economics M/C

Hi, I am having difficulty determining the answer for the following question: The market in which the assumption of continuous market-clearing seems to be LEAST applicable is the: a) stock market b) market for wheat c) labour market d) market for federal

84. ## statistics

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01

85. ## Physics

A car travleing at 30.6 mi/h on a horizontal highway. The acceleration of gravity is 9.8 m/s^2. If the coefficient of friction between the road and tires on a rainy day is .083, what is the minimum distance the car will stop?

86. ## accounting

Suppose the business has total assets worth Rs. 450,000/- and total liabilities of Rs. 800,000/-. Mr. Ali has the personal property of Rs. 200,000/- and Mr. Yasir has the personal property of Rs. 125,000/-. In case the business is liquidated and declared

87. ## physics

A car moving with a constant acceleration covers the distance between two points 80 m apart in 8.0 s. Its velocity as it passes the second point is 15 m/s. (a) What was the speed at the first point? (b) What is the constant acceleration? (c) How far behind

88. ## Algebra

The illumination provided by a car’s headlight varies inversely as the square of the distance from the headlight. If a headlight produces 15 footcandles at a distance of 20 feet, what will be the illumination at 40 feet? At 100 feet?

89. ## physics

Question Part Points Submissions Used 1 2 3 4 5 0/5 –/5 5/5 0/5 0/5 1/10 0/10 1/10 2/10 2/10 Total 5/25 A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is

90. ## french

Bête sans âge Je crie aux gens de 50 ans Que j’en ai ______ Et que j’ai le temps De ___________ De ___________ Et de ______________ Et que si je ne pense qu’a ____________ C’est parce que ________ Que j’en ai assez De parler à __________ Qui

91. ## English

FIND 15 EXPRESSIONS OR IDIOMS IN THIS TEXT Devils Lake, ND — WASHINGTON – Federal Emergency Management Agency (FEMA) officials today assured Senator John Hoeven and Congressman Rick Berg that the agency would work with city, county and state officials

92. ## functions 12

solve (x^3)+(12x^2)+(21x)-(4)=(x^4)-(2x^3)-(13x^2)-(4) the answers are x=-1,-3,7,0 but i need to know how to do it

93. ## maths

find the area of a cardboard wasted if a sector of maximum possible size is cutout from a square card board of size 24cm

94. ## physics

a bullet is fired vertically upward with a velocity 220m above the ground . calculate the time it will take the bullet to strike the ground. assuming that its path is the same vertical line throughout (g=100meter per seconds)

95. ## Science

Which of the following describes the slowest change on earth's surface? A) Gravity pulls an area of wet soil and rock downward in a landslide B) An earthquake releases energy that built up below Earth's surface C) Lava explodes from a volcano on an island

96. ## Physics

Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2.

97. ## science

How much work does it take to raise a 3kg object 5m into the air? (a) What is the potential energy of the object when it is 5m in the air? (b) What does this tell you about the potential energy you get when you do work to lift an object? (c) If you drop

98. ## Social Studies 9

Which aspects of Napoleons life does H.G wells emphasize. What does the infomation about napoleon and what does it tell you about H.G wells. is the information reliable or relevant in either case ? PLEASE NO GOOGLE SEARCHES . they don't work for me .

99. ## Social Studies 9

Which aspects of Napoleons life does H.G wells emphasize. What does the infomation about napoleon and what does it tell you about H.G wells. is the information reliable or relevant in either case ?

100. ## math

Express each function in standard form f(x)=-3(x-2)^2+5 f(x)=2(x+4)(x-6)

101. ## chemistry

why 1/t represent k in iodine clock reaction

102. ## Math

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x^2 = 7x + 2

while studying for this history exam.. I really have no idea what i'm reading.. it's hard for me to comprehend the writings.. can you offer some advice on how to study?

104. ## home insurance

The lump sum payment surivorss receive from social security to hep pay funeral and burial expenses is : A. $255 B.$785 C.$1,000 D.$2,500 im thinking about 2 answers eaither A or C . what do you think?

105. ## physics

Question Part Points Submissions Used 1 2 3 3/3 0/2 0/5 3/10 1/10 1/10 Total 3/10 Consider a conical pendulum with a 90.0 kg bob on a 10.0 m wire making an angle of θ = 3.00° with the vertical. (Consider + to be towards the center of the circular path.)

106. ## physics

A 4.5 kg object is accelerated from rest to a speed of 39.2 m/s in 76 s. What average force was exerted on the ob- ject during this period of acceleration? Answer in units of N

107. ## arithmetic

round 42.65 nearest dollar

108. ## physics

An Olympic basketball player shoots towards a basket that is 5.64 m horizontally from her and 3.05 m above the floor. The ball leaves her hand 1.71 m above the floor at an angle of 41.0o above the horizontal. What initial speed should she give the ball so

109. ## Biology

Explain how an individual can be a carrier for a oarticular disease yet not have the disase. Is this explanation true for all people who are carriers

110. ## algebra

Maria has 16 shirts and 3/8th of them are red so how many shirts are red.?

111. ## science

A 4kg block is sitting on the floor. (a) How much potential energy does it have? (b) How much kinetic energy does it have? (c) The block is raised to 2m high. How much potential energy does it have? (d) The block is raised to 4m high. How much potential

112. ## home insurance

Disability insurance is designed to replace A.damaged property B.loss or damage to property C.money damages awarded in a law suit against D.lost income i got B

113. ## Physics

The region of the solar system between Mars and Jupiter contains many asteroids that orbit the Sun. Consider an asteroid in a circular orbit of radius 4.0 1011 m. Find the period of the orbit IN SECONDS!!!???

114. ## History

Colossus of Rhodes: Was the structure effective for its' stated purpose?

117. ## Science

I need help with the experimental design of my project. I am testing to see if the the position (chin height, chest height, over head) of the basketball affects the number of shots that go in the basket. What is the independent variable and what are the

118. ## history

I don't understand what is meant when a question asks you for the "term" Historical significance. for example:john maynard keynes. I know everything about him and his economic ideas but, if i was asked to write a short paragraph of his historical

119. ## Abnormal Psychology

Please check my answers. 1). Briefly describe each of the major theoretical perspectives in maladaptive behavior. (MY Answer) a. Biological= genetic, hereditary factors b. Psychodynamic=Freudian and psychosocial influences c. Behavioral=Social learning

120. ## Accounting

I have to write a paper for accounting and I have to write about how it affect my responsibility and how it will affect my future. I need to know how to get started on this.

121. ## chemistry again

If you are given V1=410 ml T1= 27 C= 300 K P1= 740 mm Find V2 in ml at STP When given STP= 273K and 1 atm

122. ## WRITing

please tell me if Im off topic “The price of greatness is responsibility” – Winston Churchill. Responsibility is a duty or obligation to satisfactorily perform a task that one must complete and should be able to accept the consequences if failed. It

123. ## Mathematics

The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is increased by 3/20. Find the original fraction. Explain your solution

124. ## Calculus

Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B. I,

125. ## Science

I want very insightful and well structured note on "Homeostasis"

126. ## statistics

In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?

127. ## English/Argument

Write the conclusion for the two premises of this syllogism. 1. Either breach of contract is a crime or it is not punishable by the state. 2. Breach of contract is not a crime.

128. ## Maths

if there is a cylindrical ride (radius r) and when it rotates the person feels pinned tot he wall and then the floor drops away. how would i start to find the equation of the angular speed needed to keep the person against the wall????

129. ## Maths Calculus Derivatives

Find the first derivative for the following functions 1) f(x) = sin(cos^2x) cos(sin^3x) 2) f(x) = ( tan 2x - tan x ) / ( 1 + tan x tan 2x ) 3) f(x) = sin { tan ( sqrt x^3 + 6 ) } 4) f(x) = {sec^2(100x) - tan^2(100x)} / x

130. ## wRITINg

This experience has been more than fulfilling; it has shown me the road to something greater than responsibility, time management and responsibility. Children are the future and we impact the hope of the future today by our showing the many qualities that

131. ## Calculuate

Differentiate 4*(8-3x)^3

132. ## WRTINgg

Help of a Troublemaker I remember when I was younger; I had an interesting captivation with younger children. The thought of having my own, was like a dream waiting to happen, but of course when I was younger and more mature. These days I look back and

133. ## Science

Can someone please help me with this assignment. Final Project: Mitigation Strategies and Solutions · Resources: Appendix A, F, and G · Due Date: Day 7 [Individual forum] · Use the topic you chose as an environmental researcher for the Week Nine

134. ## Bible

I want to retract reword my question. Five infancy narrative events are mysteries of the rosary. What are they called? Second, which events are they?

135. ## Science

You have a solution that contains Ag* ions and another that contains Na* ions. How would adding a solution that contains Cl- ions to these solutions enable you to tell which is which?

136. ## Social Studies 9

Do you think Napoleon brayed the french revolution when he became emperor. imagine that marat, roberspierre and danton bring napoleon to trail after his defeat at waterloo. make up a list of changes these leaders of the french revoulrion might bring

137. ## math

The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.4% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

138. ## Maths

If I have the mean and standard deviation of data how do I work out the percentage of data within 1,2,and 3 standard deviations of the mean? :) any help would be much appreciated thanks

139. ## Pre Calculus

Inverse functions find the value If f(x)=1/x, find f^-1 (2)

140. ## Science

I want very insightful and well structured note on "Homeostasis"

141. ## statistics

In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?

142. ## Math

Fined the derivative of 10^-4*90/10^-4+6.

143. ## Math

Write this in function form: 7x+7y+3-3=49

144. ## social civics

"Explain how each organization works to help farmers."

145. ## Math c30

Determine the period length of y=3tan 2x I had the answer to be pi , but the correct one is pi/2 How do you get that answer??

146. ## Math Investigations II

For what value of k will the system be dependent? x+3y+2z=-4 3x+4y-z=2 3x-y-8z=k I'm confused as to what exactly it's asking for by a dependent system. I know this is a system with infinite solutions, but I don't know how to find that in 3 dimensions.

147. ## English/Argument

Logic Problem- A&B A. Supply a (B)term that would support the following argument, "18-year olds should be able to drink alcohol legally." Come up with a (B) term and present result as a syllogism. B. Supply a (B)term that will support the following

148. ## English/Argument

How do I recognize or Identify fallacies within an argument? Thank you

What is velt

150. ## Science

You are given two solids that look nearly alike, one of which is held together by ionic bonds and the other by van der Waals bonds. How could you tell them apart?

152. ## English

Can you please check these sentences? Thank you. When I was "little" (young is better) could play the guitar quite well. Can you say "yesterday evening" in British English (instead of last evening?) He insisted that he hedn't broken the vase. He insisted

153. ## Maths Calculus

Find the first derivative for the following functions 1) x^3 . sqrt( 3x^5 + 1 ) . sin (7x)

154. ## Spanish

If I wanted to say "Those butterflies are the prettiest of all." would I say this sentence or should the "esas" be "estas"? Esas mariposas son las más bonitas de todas las mariposas

155. ## Question

I need to know in what city in the us is there the greatest pets to people ratio? It would also help me if you gave the west site or news article information

156. ## Science

What do you mean by the statement "waves transport energy, not water?". How do waves transport energy without moving water? What is the function of the energy transported by waves? When there is a term "displacing molecules", what does it mean? Explain it

157. ## MATH HELP HELP HELP HELP HELP

Suppose that a set S is bounded above. Let r be any real number and t be any positive real number. Let T = {r + tx : x e S}. Show that sup T = r + t sup S regards

158. ## Algebra

Suppose f(x)=2x-5 and g(x)=|-3x-1|.Find each value. f(1)+g(2) -Would the answer be f(1)+g(2)= 4? Thanks

159. ## physics

A car is connected to a tree by a length of rope tied tightly. A 115 pound woman steps in the middle of the rope causing it to deflect by 15 degrees.

160. ## French

can i please have a short summary/biography on Gaspard Ulliel?

161. ## Science

In an acidic solution, why is the OH- concentration lower than it is in pure water?

163. ## Math

Evaluate the function. p(x)=2/5x+1/2, when x is 3. Those are fractions, by the way..

164. ## health

Thinking in terms of the administrator and third-party payer perspectives, answer the following: What do you feel are the biggest weaknesses of the health care plan, and why?

165. ## math c30 trig

Determine the period length of y= 2/3 sin (3x/2 ) I had 3pi/2 but the correct answer is 4pi/3 how do you get that???

166. ## math

in a recent poll of 1,800 adults only 25% of the population approves of the president's performance. how many total people approve and how many total people disapprove of the president's performance? please help!

167. ## Science

What changes occur to the uterus during a female's monthly menstrual cycle? What can be a hypothesis for this question? (Explain)

168. ## Science

What changes occur to the uterus during a female's monthly menstrual cycle? What can be a hypothesis for this question? (Explain) I know you had given me a website before, but I DID A HYPOTHESIS FOR THIS QUESTION NOT THE ANSWER FOR THE QUESTION. `THANKS♥

170. ## chemistry

Given 6.00 L of N2 at -25 degrees C. Find Vol in L at 100K

171. ## nursing

What are ways you provide education to patients in your work place regarding chromic diseases?

172. ## critical thinking

technical jargon used by people in the same field can be an acceptable used of language. true of false.

173. ## math

Determine the equation of the inverese of the quadratic function f(x)=x^2-4x+3

174. ## English

Could you check if the following alternatives are possible, please? Thank you. 1) I didn't know your address but I was able/managed to find you. (succeeded in finding you??? ) 2)When I was young, I could/was able to (NO: managed to/succeeded in ) 3) I

175. ## math/chem

what is dimensional analysis

176. ## homeinsurance

Expensive jewelry is usually insured by a (n) A.umbrella policy B.replacment cost rider C.policy floater D.named-perilspolicy. I got C .

177. ## math c30

-pi/4 plus 15pi/4 divided by 2=7pi/4 how is the math done regarding the fractions (dividing and multiplying)