# Questions Asked onJanuary 3, 2013

1. ## Physics

A 5000 kg African elephant has a resting metabolic rate of 2500 W. On a hot day, the elephant's environment is likely to be nearly the same temperature as the animal itself, so cooling by radiation is not effective. The only plausible way to keep cool is

2. ## Algebra II

The weight of a body varies inversely as the square of its distance from the center of the earth. If the radius of the earth is 4000 mi, how much would a 200 lb man weigh 1000 mi above the surface of the earth?

3. ## calculus

integrate the following (3y-7x-3)dx+(7y-3x-7)dy=0

4. ## math

Find two consecutive positive integers whose product is 132.

5. ## phy

Review. An object with a mass of m 5 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R 5 0.250 m and mass M 5 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing

6. ## Can someone help me?!

The 1st, 5th and 13th terms of an arithmetic sequence are the first three terms of a geometric sequence with a common ratio 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric sequence.

7. ## Math

The average eye blinks once every 5 seconds.Is that more than or less than a hundred thousand times per day?Explain your answer. I think the eyes blinks less than a hundred thousand times.I say this because in60 seconds the eyes would blink 12times,so for

8. ## Physics...Equilibrium (physics of a clothesline)

A clothesline is attached to two fixed ends which are 10.0m apart. A pulley of mass 40.0kg hangs freely in the middle of the line. The sag at the centre is 0.20m. Find the tension in each half of the clothesline.

9. ## Series and sequences

Three numbers a,b, and c form a geometric series so that a+b+c=35 and abc=1000. Find the values of a,b,c.

10. ## math

How far is the point described by the ordered pair (4,5) from the x axis

11. ## calculus

integrate it by integrating factor (cos^3x)dy/dx +ycosx=sinx

12. ## math

write the expression as a sinle logarithm. express powers as factors. In (x/x-1)+In(x+1/x)-In(x^2-1) Please show work.

13. ## algebra

Coulld someone take the time and check my answers please. 11) without graphing is the system independent, dependent, or inconsistent? y=-x+5 -3x-3y=-15 (my answer; dependent) 12) your club is baking vanilla and chocolate cakes for a bake sale. they need at

14. ## Ethical Dilemmas/Criminal Justice

Which statement is NOT consistent with Ethical Formalism? a. Moral law is self-imposed b. Moral actions are determined by reason c. lying is never justified d. individuals cannot control the consequences of their decisions. I believe it is D

15. ## Calculus

A colony of bacteria is grown under ideal conditions in a laboratory so that the population increases exponentially with time. At the end of 2 hours, there are 4,800 bacteria. At the end of 4 hours, there are 19,00 bacteria. How many bacteria were present

16. ## Forensics

A sample of light brown powder found in the kitchen of an alleged drug house gives a blue precipitate with cobalt thiocyanate. What is it? Is there enough evidence to prosecute?

17. ## statistics

A sample of 25 different payroll depts. found that the employees worked an average of 310.3 days a year with a standard deviation of 23.8 days. What is the 90% confidence interval for the average days worked by employees in all payroll departments?

18. ## Chemistry

A sample of iron(II) sulfate was heated in an evacuated container to 920 K, where the following reactions occurred. Reaction (a): 2 FeSO4(s)--> Fe2O3(s) + SO3(g) + SO2(g) Reaction (b): SO3(g)--> SO2(g) + 1/2 O2(g) After equilibrium was reached, the total

19. ## Math

A scale drawing of a house is drawn with a scale of 1 in. : 16 ft. Find the actual length of a hallway that is 5/8 in. On the scale drawing. Show your work

20. ## English Hamlet...Writeacher

Kristy Cheung Ms.Weately Grade 11 U English January 10, 2013 The Tainted Mirror A person who sets off another person by being a contrast to that person is known as a foil to the character. In Shakespeare’s great tragedy Hamlet, two character Laertes and

21. ## calculus

The ellipse x^2+3y^3=13, has two points when x+-1 . Find the slope of the ellipse at both these points. 2. Thoroughly explain the method you used to find the slope in part 1. What are the strengths and weaknesses of the method you used? 3. Explain whether

22. ## maths

medians of triangle ABC intersect at G. if ar(triangle ABC) = 27 CM^2, then ar(triangle BGC) =?

23. ## math

6-2(3-7)^2÷(-4)= can you explain how to solve it, please?

24. ## early childhood

a child bringing the mouth into contact with a nipple i think its rudimentary reflex. Am i right?

25. ## Ethical Dilemmas/Criminal Justice

Which of the following is an example of a value? a. It is raining b. Rain is good c. He is a liar d. He is a criminal I think the answer is A

26. ## plzz HELP me

If it is Ms.Sue or WRITEACHER do not bother because i know you do not help if your going to help than help but if not than don't but i don't want to hear complaining about not helping now anyone please help _______ , seen here in Figure 10-2, has ladder

27. ## Psychology

Gayla's treatment for bulimia and binge eating has been highly successful. It is most likely that her treatment involved a combination of: A. cognitive therapy and behavior therapy B. psychodynamic therapy and behavioral skills training C. systematic

28. ## MATH126

I was 29 when my son was born, what equation would I use to figure out what our ages would be when I am exactly three times his age?

29. ## math

Are there any zeros in the quotient 495 divided by 4 how can you tell with out finding the quotient?

30. ## math

how do I correctly show four as an array?

31. ## Health 8R

If you take a AIDS antibody test. If the results are positive is.. that's good or bad?

Are there any zeros in the quotient 495 divided by 4 how can you tell with out finding the quotient?

33. ## army

1. List the five Components of Fitness. 2. There are seven recognized Principles of Exercise; List at least five of them. 3. You are designing a fitness program for your Soldiers; list the Three Phases of Conditioning that you must consider. 4. When we

34. ## Math

I have to factor 15x^2+2x-24 How can I do this?

35. ## math

which expression below shows how much paul woud collect in week if he had 40 clients recieving daily plus sunday delivery,and 25 clients recieving sunday delivery only?

36. ## physics

A 5.56 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 10.7 N at an angle theta = 17.0° above the horizontal, as shown in the Figure. The coefficient of kinetic friction between the block and the floor is 0.06. What is

37. ## Physics

On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched from Earth and reached Mars on March 10, 2006. The orbiter is in roughly circular orbit about 390 km above the martian surface. Mars has a radius of 3396 km and a mass of 0.642 x 1024 kg

38. ## Physics

c) A penny sits 12 cm from the center of a record turning at 33 1/3 rpm. What is the tangential speed in m/s? d) A mass spins with a tangential speed of 1.2 m/s on the end of a string which is 0.75m long. What is the period of the rotation in seconds?

39. ## Physics

A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating

40. ## Physics

A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tangential velocity, v, of the plane? .

41. ## Physics

A coin is placed on an old record turntable which rotates at 78 rpm. The coefficient of friction between the record and the coin is 0.17. a) What is the angular speed of record in radians/s? b) At what distance (m) from the center will the coin begin to

42. ## chemistry

though water has V shaped,why doesnot it scratch our throat?

43. ## For Kristy - re Hamlet

http://www.jiskha.com/display.cgi?id=1357147928 and http://satomko.hubpages.com/hub/Fortinbras-as-a-Foil-for-Hamlet Do. Not. Plagiarize. If you are not clear on what plagiarism is and how NOT to plagiarize from a source, read through this entire webpage

44. ## Chemistry 1

We are working on molarity of a solution in my class, and I am a little stumped on how to set the problems up. Here is one question from my homework. How many grams of NaCl are needed to make 575mL of 1.5 M NaCl solution? Thank you in advance :)

45. ## math

calculate ratio of the area to volume for unit cube, a unit sphere inscribed inside the cube and as right cylinder inscribed inside the cube

46. ## exponential fuction

what is y=f(x)=1/3)x rounded to the nearest thousandth

47. ## maths

The mean age of 30 students in a class is 14 years .5 students with mean of 15 years left the class. Find the mean age of the remaining students?

48. ## Chemistry

An aqueous solution of (NH4)2SO4 has a pH lower than 7. Explain this observation. Thanks! :)

49. ## Spanish 2

I turned these in and my teacher said all my answers were wrong. I'm so confused because when I go through my chapter it says differently.Can someone please help?! A. Supply the correct form of the adjective. 1. rojo Hay una pluma _____ encima de la mesa.

50. ## grammar

Which sentence would be right? 1. Two things I would like to change academically are to change 2. Two things I would like to change are changing

51. ## math

find the 8th number in the pattern

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four decimal places.) Enclosed by y = ln x, y = 2

53. ## maths

the angles of a triangle are arranged in asscending order of magnitude. if the diffrence between two consecutive angles is 10degree ,find all the three triangles

54. ## Math/Finance

How much would an initial investment of \$500 be worth in 90 days if it earned 3% daily?

55. ## math

3 written ratios for 4 apples for \$1

56. ## calculus

solve it by integating factor dy/dx + (x+1/x)y=e^-2x

57. ## Algebra

Kendra owns a restaurant. She decides to charge \$1.50 for two eggs and one piece of toast and \$0.90 for one egg and one piece of toast. How much money is she charging for each egg and each piece of toast?

58. ## physics

How physics relate on building snowman

59. ## math

Andrew has \$40. He wants to buy a \$15 cd and as many \$6 posters as he can. What is the greatest number of posters he can buy? I did 40>or=15+6x -15 to each side 25/6> or=6x/6 4.17> or = x so he can buy 4 at most Is this correct? Thanks

60. ## maths

A line intersects the y axis and x axis at the point P and Q respectively.If (2,-5) is the mid point of PQ,then the coordinates of P and Q are respecively

61. ## physics

A car is moving at 37 m/s. It slams on its brakes and comes to a stop in 22 m. What was the acceleration from the brakes?

62. ## maths

A sphere,cylinder,and cone are of the same radius and same height. Find the ratio of their curved surface area.

63. ## statistics

A food snack manu. samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and the sample standard deviation is .15, find the 95% confidence interval estimate for the true mean.

64. ## maths

Mid-points of the sides AB and AC of a triangle ABC are ( 3 , 5 ) and ( -3 , -3 ) respectively,then the length of the side BC is

65. ## Physics

25 litre bottle of oxygen in a hospital. If the bottle is at 12 atmospheres, what volume of oxygen is available to the patient? If the oxygen is stored at 4 degrees C and used at 20 degrees, what difference does this make? (Assuming start volume and

66. ## math

which is equal to 435 in? A. 37ft B.36ft C.12yd 3 in D.12ft 3in

67. ## AFM

Show the solutions of the two examples given in the notes. (Hint: Finding a "solution" means solving for all missing sides and angle measures in each triangle.) (a) If a = 4, b = 3, and A = 36o. (b) If a = 3, b = 4, and A = 48.59o

68. ## math

Which is the value is in the solution set for the inequality -8-7x>6 A=-1 b=-2 c=-3 d=2 -8-7x>6 add 8 to each side -7x>14 -7/-7>14/-7 x

69. ## Algebra

the length of a rectangle is 7 cm more than its width. find the demensions of the rectangle if its perimeter is 50 cm.

70. ## physics

a 6 kg box is stacked on top of a 15 kg box. anet leans down and pulls her elbow on the top box, exterting a force downward of -122N. what is the normal force on the top box

71. ## math

find the domain of the composite function fog. f(x)=x/x-2;g(x)=-8/x a. domain of fog is {x/?} b. the domain of fog is all real numbers

72. ## math

find the functions f&g so that fog = H H(x)=squre root x^2+8 please show work

73. ## science

can a force of IN acting over an area of 1m^2 called

74. ## science

can a force act on an object ever when it is not in contact . give examples

75. ## Math help

Two out of every 10 students in a school have a dog. Expressed as a decimal to the nearest hundredth, what is the probability that exactly 2 out of 6 students in a given class have a dog? (1 point) 0.33 0.02 0.20 0.25

76. ## pre-calcus

In the following function determine the domain, range, and asymptotes. f(x)= 5*(1/3)^x

77. ## CHEMISTRY

WHAT IS THE NAME AND CLASS OF Br-CH2-CH2-CH3

78. ## math

chane the logarithmic expression to an equivalent expression involving an exponent log416=x **the 4 is supposed to be dropedd down lower by the g.**

79. ## math

Solve the following equation. log4(x+2)=lo4^7 Both of the 4's should be dropped down.

80. ## math

The fourth grade has 102 students.it has three times as many students as Mrs pride class.how many students are in Mrs pride class?

81. ## maths

If O is the centre of a circle, PQ is a chord and the tangent PR at P makes an angle of 50 degree with PQ, then find angle POQ.

82. ## Home, School and community

When implementing a Parent Education Program, teachers act primarily as___, while families define their needs. A. experts B. interventionists C. educators D. resources

83. ## maths

Consider the sequence 1,-2, 3,-4, 5, -6,.........., n(-1)^(n+1) What is the average of first 300 terms of the sequence?

84. ## maths

AD is a median and P is the midpoint of AD of triangle ABC. BP and CP are joined show area (BPC)=area(ABD)

85. ## algebra

Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much

86. ## math

use properties of logarithms to condense the loarithmic expression. write expression as a sinle logarithm whose coefficient is 1. where possible evaulate the expression. 1/8[3 In(x+5)-In x-In(x^2-4)] Please show work

87. ## algebra

Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much

88. ## chemistry

The temperature of a dilute 0.847 M solution of NaBr was increased from 25 degrees Celcius to 40 degrees Celcius. What effect did this temperature change have on the molarity of the NaBr solution?

89. ## algebra

a minus the fraction a^2-a-6 over 2(a-3) thank you

90. ## math

The sum of the squares of two positive consecutive is 41. Find the integers.

A manager refuses to reveal company secrets despite an offer of handsome kickbacks. I believe that the answer is C: The company policy states that anyone found guilty of such an act will be suspended

92. ## English....Writeacher checkthis out!

I DID IT!:) The Tainted Mirror In Shakespeare’s great tragedy Hamlet, three characters Hamlet, Laertes and Fortinbras, develop as “foils,” or contrasting characters. Several comparisons and contrasts can be shown between the three characters, many of

93. ## math

how do you the square root of 25 and 36 ?

94. ## mmm

What is the slope of the line that is perpendicular to the line whose equation is 3x +2y = 9?

95. ## physical science

Using Fig. 4.28 as an example, how much applied force would the man need to have to pull the block (weight or output force = 500 N) if the rope he is holding is 7 m long and the rope on the pulley is 2 m long? (Hint, the pulley is a simple machine)

96. ## maths

a circular flower bed is surrounded by a path 3m wide the diameter is 44m what is the area of this path

97. ## maths

the circumference of a circle 314cm find the radius and the area

98. ## AP US History

In the early 19th century, Americans sought to resolve their political disputes through compromise, yet by 1860 this no longer seemed possible. Analyze the reasons for this change. Im having problems finding information to support this. This is my

4a-3/4-3

100. ## maths

the minute hand of a circular clock is 18cm long how far gdoes the tip of the hand move in 2 hours

101. ## math (algerba 1)

A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?

102. ## biology

biology is the study of what?

6/2 ( 1+2)

104. ## Spanish Check??

Preterit and imperfect? StartFragment --> A. Choose the correct preterite tense conjugation. t� (dar) das dabas diste B. Choose the correct imperfect tense conjugation. las gatas (ir) iban van fueron C. Choose the correct preterite tense conjugation.

105. ## Spanish Check??

A. Choose between the preterite or the imperfect. 1. We wanted to buy the car. QuisimosQueríamos comprar el auto. 2. The man refused to speak. El hombre no quisono quería hablar. 3. They found out the news yesterday. SupieronSabían las noticias ayer. 4.

106. ## Spanish Check??

Anwser in spanish. Comprensión; ¿En qué siglo los conquistadores conquistaron América? ¿Cómo se llama la capital antigua de Perú? ¿Qué animal fue importante para el éxito de los conquistadores? ¿Cuál país conquistó Hernán Cortés? ¿Cómo se

107. ## Science

in a liquid form which one could be considered an electrolyte H2so 4 Hcl, C3h8 or Naci

A motorboat can travel upsteam on a river at 18km/h and downsteam at 30km/h. How far upstream can the boat travel if it leaves at 8:00am and must return by noon?

109. ## Earth science

Review the 1906 Quake that hit San Francisco and answer the questions below. 1. San Francisco is found to have been constructed on several large strike-slip faults. If these faults become active, what specific type of damage (based on the type of fault

110. ## history

did ludwig van beethoven die on March 26,1827

111. ## Math

5. Write an inequality for the word sentence: k is less than zero. Help please I don't get this one at all

112. ## Math

Mike has 4 times as many nickels as dimes. How many of each does he have if he has a total of \$2.40

113. ## Physics

On August 12, 2005 the Mars Reconnaissance Orbiter (MRO) was launched from Earth and reached Mars on March 10, 2006. The orbiter is in roughly circular orbit about 390 km above the martian surface. Mars has a radius of 3396 km and a mass of 0.642 x 1024 kg

114. ## Physics

c) A penny sits 12 cm from the center of a record turning at 33 1/3 rpm. What is the tangential speed in m/s? d) A mass spins with a tangential speed of 1.2 m/s on the end of a string which is 0.75m long. What is the period of the rotation in seconds?

115. ## psychology

At the age of four months, Zach was excitable and fearful. His dad taped a colorful picture beside the changing table to entertain Zach during diaper changes. Zach overreacted to the picture and became agitated and nervous. During his school years, Zach is

116. ## Physics

A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating

117. ## King

Oder the numders from least to greastest 3/8 5^-3 0.003 square root of 5 4/7

118. ## Physics

A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tangential velocity, v, of the plane? .

119. ## Physics

A toy plane of mass 0.624 kg is flown in a circle when attached to a string. The plane moves around the circle with a rotational speed of 8.09 rpm. The length of the string is 2.60 m. What is the tension in the string?

120. ## Physics

A coin is placed on an old record turntable which rotates at 78 rpm. The coefficient of friction between the record and the coin is 0.17. a) What is the angular speed of record in radians/s? b) At what distance (m) from the center will the coin begin to

121. ## Math

solve for w . p=2(l+w)

122. ## Math

The measure of one of two complementary angles is 21 less than twice the measure of the other angle. Find the measure of each angle

123. ## Math

The sides of a triangle are three consecutive odd integers. The perimeter of the triangle is 39 inches. What is the length of each of the three sides?

124. ## scince

What is the difference between chemical and physical change?

125. ## health

There are ________ of muscles that are responsible for chewing movements or mastication. A. Two pairs B. Three pairs C. Four pairs D. Five pairs

126. ## Chemistry

Balance equation c2h3cl + br2

127. ## geography

Discuss the origin, diffusion, and impact on the cultural landscape for one of the following: A) folk housing styles in the United States. B) Buddhism in Asia. C) English in South Asia.

128. ## English

Is this a statement of opinion? In the Doorbell Rang, the author shows the way division works. I think it is am I right?

129. ## 5th grade math (word problems)

I'm not sure how to solve the following problem: If you divide 1/10 of a dollar into parts that are each 1/100 of a dollar, how many parts are there? What are they called? To solve, would part of the answer be that i would have 10 parts of 1/100 (because I

130. ## math

using only one cut , how would you divid 7 pieces of licorice among 5 people so that each people gets the same amount of licorice without bending the licorice

131. ## Social Studies

What us a Political Cliff? I am supposed to write a summary about the subject.

132. ## physics

If a mineral has a gravity of 5.5, how much more matter is there in 1 cm3 of this mineral than in 1 cm3 of water?

133. ## Precalculus

Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π). 8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve algebraically for exact solutions in the interval [0,2π). Use your grapher only to support your algebraic work. 24. cos2x+sinx=0

134. ## Physics

State the expression for moment of inertial of the following (1) A rod (2) rectangula plate (3) ring (4)circular disc