# 1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find

92,916 questions, page 609
1. ## Aforismos, Axiomas, Teoremas y Anologías?

Ok one more question about Historia del hombre que se convirtió en perro. I was informed today that for my presentations I also have to identify any aforisms, analogies, teoremas and axioms in this story. I personally knwo they exist in the concept of the

asked by Cassie on September 30, 2011
2. ## chemistry

A sample of sulfer, mass 2.56 g is burned in excess oxygen inside a calorimeter of heat capacity 923JK and insulated by 815g of water. If the sole product of combustion is SO2, what is the expected increase in temperature? I don't need the answer, just the

asked by joanna on November 30, 2010
3. ## Temple College

had some Psychology homework resereching a female Psychiatrist named Viola Brody. but when i reaserch her online through all the major search engines i come up empty. all i've found so far is that she wrote a book witch i already knew. can you help me with

asked by Joshua on March 8, 2010
4. ## calculus

Take an 8.5 by 14-inch piece of paper and cut out four equal squares from the corners. Fold up the sides to create an open box. Find the dimensions of the box that has maximum volume. (Enter your answers as a comma-separated list. Round your answer to

asked by Anonymous on April 20, 2012
5. ## Art (1 question)

Question #1: Ancient Native Americans chose willow strips to make baskets because they were easy to bend and a) easy to find b) rare and valuable c) multi-colored d) waterproof There's no textbook for the Art course so it's hard. According to the non-sense

asked by Gourami on February 17, 2016
6. ## Social Studies

Were there specific historic contributions that were unique to each of the follindian Native American Indian tribes? Plateau, Northeast Woodland and Southeast Woodland Indians My textbook doesn't give that information to me. I was told by my teacher to

asked by Scott on September 27, 2007
7. ## calculus

A woman pulls a sled which, together with its load, has a mass of m kg. If her arm makes an angle of θ with her body (assumed vertical) and the coefficient of friction (a positive constant) is μ, the least force, F, she must exert to move the sled is

asked by Michael on October 30, 2014
8. ## Math (Calculus 121)

Consider the following function. f(x) = 7x3 + x2 - 0.08x + 12 Find the two points on the graph at which the tangent line is horizontal. Give your values correct to 2 decimal places. ( , ) (point with smaller x value) ( , ) (point with larger x value)

asked by Lia on February 19, 2007
9. ## LA

In all together now Jordan uses appeals to reason to try to persuade her readers that her views are important. In a paragraph cite one example of each kind of appeal in her work. thank explain whether you find jordans appeals convincing supporting your

asked by sam on December 16, 2015
10. ## chemistry

The electrochemical cell described by the balanced chemical reaction has a standard emf (electromotive force) of 0.27 V. Calculate the equilibrium constant (Kc) for the reaction at 298 K. Round your answer to 3 significant figures. H2O2(aq) + 2ClO2(g) →

asked by its me on June 6, 2010
11. ## AP Biology for Kate, etc.

To save your looking for these AP Biology sites, I now have ready: AP Central, AP Fees, Study Tips, Reviews, Test-Taking Tips, Practice Quizzes, Sample AP Bio Tests & Scoring Guidelines and books either to purchase or to find in a library. Just let me know

asked by SraJMcGin on July 6, 2010
12. ## Chemistry - Redox

Balance the following redox reactions by inserting the appropriate coefficients. Al + MnO2 --> Al2O3 + Mn HNO3 + H2S --> NO + S + H20 Initially, I know the first step is to find assign all the oxidation numbers for the products and reactants listed, but am

asked by Harold on February 16, 2011
13. ## English

Can I please have some help here. Is this correct for Mla citation. I used a piece out of our book from school in my paper. It has multiple authors and I can't find anywhere city of publication, publisher or year. If this is correct is the grammar right.

asked by Martha on November 13, 2009
14. ## math

Take an 17 by 11-inch piece of paper and cut out four equal squares from the corners. Fold up the sides to create an open box. Find the dimensions of the box that has maximum volume. (Enter your answers as a comma-separated list. Round your answer to three

asked by emily on April 21, 2013
15. ## Physics

A football player carrying the ball runs straight ahead at the line of scrimmage and directly into a wall of defensive linemen. The ball carrier has an initial speed of 8.48 m/s and is stopped in a time interval of 0.186 s. Find the magnitude and direction

asked by Aaron on January 26, 2012
16. ## english

can someone please help me find the story, "The Tale of Sir Launcelot du Lake" on the internet by giving me a link. from Le Morte Darthur Sir Thomas Malory retold by Keith Baines. it starts with " When King Arthur returned from Rome..." and ends with "My

asked by y912f on July 6, 2009
17. ## Probability and Stats

A student was totally unprepared for a multiple-choice test and had to absolutely guess the answer to every one of the 100 questions. About what score (percent) would you expect him to earn if there were four possible answers to every question? I'm not

asked by Bridget on October 25, 2016

charlie can not remember how much he financed to buy his car.. he does remember that his monthly payment is $200 and his add on interest rate was 12% and he made a total of 18 payments. find the amount of his loan to the nearest penny. I keep getting over asked by HM on October 14, 2011 19. ## history hi i new to this and i need help with some world history questions and i don't have a book and I've already researched it and i did not find nothing. The conquest of new lands allowed Romans to A. increase the number of Roman citizens. B. decrease the asked by sarah on May 29, 2014 20. ## Statistics A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 6 hours, what is the required sample size if the error is to be less asked by Zenna on December 8, 2008 21. ## I need help.,math Is this correct or wrong? Technology. Driving down a mountain, Tom finds that he has descended 1800ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. so i would asked by jasmine20 on January 15, 2007 22. ## Statistics A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size if the error should be asked by Robin on September 5, 2010 23. ## Physics An amusement park ride consists of a rotating circular platform 8.00 m in diameter from which 9.5 kg seats are suspended at the end of 2.50 m massless chains. When the system rotates, the chains make an angle θ = 31.0° with the vertical. Assume the asked by kulit on October 17, 2012 24. ## us history Which of these Transcendentalist ideas had the most direct impact on the civil rights movement of the 20th century? (6 points) A. God and nature are one and the same thing. B. People should peacefully protest unjust laws. C. Self-reflection is the most asked by anon on March 29, 2016 25. ## american history This is for a project i need to find information for this. Can you send me some links i could use. Describe the events that led the 13 colonies from a newly independent nation to a transcontinental country by examining selected documents involving the asked by dianni on March 28, 2019 26. ## chemistry You have 5 metals A, B, C, D, E in 1.00M solutions of A^(3+), B^(3+), C^(3+), D^(3+), and E^(3+) respectively. When some of the half-cells are connected, the following results are found. Cathode /Anode /Cell Voltage C E 0.10V D B 0.08V A C 1.41V D C 0.55V asked by sh on November 4, 2009 27. ## arithmetic Assume you roll a fair dice twice. Two rolls are independent and identically distributed, with probability of rolling a particular number being 1/6. So, for instance, the probability of rolling 5 and then 2 is P(5,2) = P(5) ⋅ P(2) = 1/6 ⋅ 1/6 = 1/36 asked by Anonymous on June 1, 2013 28. ## Biology I was wondering if someone could please explain this to me (please don't give me links to websites, I already have a thousand saved under my favourites, I just don't understand how to find my answer from the information the websites have provided). asked by Needs a bio teacher on March 23, 2008 29. ## Physics A 750 kg car traveling 22.0 m/s due north crashes into a 1500 kg truck traveling 20 m/s due west. The two vehicles become locked together and travel 19.0 m before stopping. Find the average frictional force (magnitude and direction) that brings the two to asked by Chad on August 10, 2012 30. ## chem In the formation of sulfur hexaflouride, does the reaction at constant pressure or volume proceed more spontaneously? I've done the calcs to show that at constant volume, it is slightly more spontaneous, but I can't seem to find a good reason why... it asked by xX_Supaman_Xx on January 28, 2008 31. ## Algebra II Part 2 The equation h=7 cos{pi/3 t} models the height h in centimetres after t seconds of a weight attached to the end of a spring that has been stretched and then released. Find the times at which the weight is at a height of 1 cm,of 3 cm,and of 5 cm below the asked by Karen on May 18, 2013 32. ## calculus...plz ans urgent Find the dimensions of the right circular cylinder of greatest volume which can be inscribe in a right circular cone with radius of 5 inches and a hieght of 12 inches(hint:use similar triangle property).also draw a label diagram....plz answer its too asked by daan on November 7, 2010 33. ## Chem-Help Please!!! a correction needs to be made to the calculations for real gases as compared to ideal gases. apply these corrections and calculate the real pressure expected for 5 mole of nitrogen in a 1.5L container at a temp. of 20C. Note: I tried to find right formula asked by Amanda on April 18, 2012 34. ## stats Assume that​ women's heights are normally distributed with a mean given by mu equals 63.4 in​, and a standard deviation given by sigma equals 1.8 in. Complete parts a and b. a. If 1 woman is randomly​ selected, find the probability that her height is asked by wendy on July 28, 2018 35. ## maths-need help asap how many litres of kerosine can be held by a cylindrical 21cm deep? Live your answer to 2 significant figure (2).a conical vessel is 10cm deep.if it half filled with liquid,find the depth of the liquid #thanks working or hint plz asked by maths-lover on June 3, 2016 36. ## Physics A cyclist starts from rest and accelerates at 2m/s2, for 2second. Her velocity remains constant for the following 4second. The brakes are then applied and the bicycle decelerates uniformly until it comes to rest after 10 second. Find(a) the distance moved asked by Physics on March 29, 2016 37. ## algebra Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate. Find examples that support or refute your classmates’ answers to the discussion question. Provide additional similarities and differences between functions asked by Anonymous on December 10, 2010 38. ## MICROECONOMICS Hello ive been struggling with this problem for about 2 days now could someone walk me through it? Suppose a firm faces a downward sloping demand curve given by the equation Q = 100 - (1/3)P. The firm's cost function is given by the equation C = 30 + asked by Brett on October 16, 2007 39. ## MATH HELP Find the periodic payments necessary to accumulate$20,000 in a sinking fund paying 4% per year, with monthly payments for 5 years. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest cent.)

asked by Sabrina on March 11, 2009
40. ## Social Studies

Where can I find information on the lifestyles in the Southeastern U.S. in 1906? This article has some information. http://en.wikipedia.org/wiki/Southern_United_States#20th_century https://www.cia.gov/cia/publications/civilwar/docs/p31.htm

asked by Anne on October 23, 2006
41. ## Physics

Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the

asked by John on November 28, 2011
42. ## physics

A cricket pitch roller of diameter 1.5 m has a mass of 450 kg; it is pulled by a handle attached to its centre. Find the minimum force to pull up a step which is 250 mm high if the roller handle makes an angle of 30o with the horizontal.

asked by Romaine on November 9, 2014
43. ## Research methods

In my research methods class we are talking about getting IRB approval. Part of my assignment is to list possible penalties for major and minor violations of an IRB-approved research study. I cannot find this information in the school handbook or online.

asked by Institutional review board on October 21, 2017
44. ## Algebra 2

A bridge is designed with cables that connect two towers that rises above a roadway. Each cable is modeled by the function, H(x)=1/9000x2-7/15x+500, where x and h(x) are measured in feet. a. what is the height above the road of a cable at it's lowest

asked by Luke on October 23, 2011
45. ## physics

A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

asked by joel on December 31, 2014
46. ## Physics

A conical pendulum rotates at 100 rev/min. The cord is 150mm long and the mass of the bob is 1.35kg. Find (a)the amount by which the bob rises above its lowest position , (b)the periodic time , (c)the tension in the cord . ( PLEASE HELP ME FOR MY REPORT )

asked by Lairjan on February 26, 2016
47. ## math

"The area of a rectangle is 360m2. If its lengh if increased by 10m and its width is decreased by 6m, then its area does not change. Find the perimeter of the original rectangle." I need to use the "guess and test" or the "draw a diagram" method to solve;

asked by john on February 18, 2013
48. ## Theory of machines

A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

asked by Rahul on January 18, 2015
49. ## math help please

I had 12 of these problems got through all but the last one. I need to show the steps The Parkhursts used 160 yd of fencing to enclose a rectangular corral to divide it into two paths by a fence parallel to one of the shorter sides. Find the dimensions of

asked by sam on December 5, 2007
50. ## Electronics

The channel's power constraint imposes the maximum SNR of 30 dB. Q)If the channel's bandwidth is 3 kHz, find out the maximum throughput R (in bits/s) that can be achieved by QAM signalling with a square constellation (like the ones you saw in the lecture)

asked by tanvir ali on April 17, 2013
51. ## math

The minimum daily value (MDV) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractiona notation for the percent notation. 1/2 cup of campbells' new england clam chowder provider 6% of the MDV of iron

asked by Peggie on September 2, 2008
52. ## Engineering science

A boat start sailing on Monday 10:00 at harbour A and sails 600km due north. Later it turns east for a further 420km to reach harbour B on Tuesday at 12:00.a)find total displacement from A-B average. b)speed of the trip.c)average velocity

asked by Isaac B.Acheampong on May 5, 2017
53. ## Physics

A Sunway train starts from rest at a station and accelerates at a rate of 2.0 ms^-2 for 10 s. It runs for constant speed for 50 s and slows down at a rate of 3.5 ms^-2 until it stops at the next station. Find the total distance covered Draw the velocity vs

asked by Molly on September 28, 2016
54. ## Government US

35. All of the following are true of the Head Start program except that it a. began as part of the War on Poverty in the 1960s . CORRECT c. has been weakened by children’s unsupportive environments at home. I DON'T KNOW d. is fully funded at the present

asked by HM on October 10, 2011
55. ## CALCULUS

A cone shaped paper drinking cup is to be made from a circular piece of paper of radius 3 inches by cutting out a sector of the circle and gluing the straight edges together. Find the angle of the cut that gives the cup with the largest capacity.

asked by Sissy on October 20, 2012
56. ## ^HYDRAULICS AND HYDROLOGY^

Pls...,need help. QUESTION=Water flows through a pipe of diameter 300mm with a velocity of 5m/s.if the coefficient of friction is given by f=(0.015)+(0.08/Re^0.3) where Re is the Reynoid number. Take kinematic viscosity of water as 0.01stoke. *Find the

asked by Ekingdeft on February 6, 2016
57. ## algebra math, 8th grade

At a halftime show, a marching band marched in formation. The lead drummer started at a point with coordinates (-2 -5) and moved up 3 steps and 1 step right. I need to write a rule to describe the translation, and I also need to find the coordinates of the

asked by Tazia on December 6, 2017
58. ## Chemistry

Find the energy( in KJ) of a wave with the wavelength of 507 nm. First, I turn the 507 nm into meter then divide the speed of light by it which give me the frequency. Then I take the frequency and multiply by the planck. Then I would convert the Joule to

asked by Shadow on November 7, 2012
59. ## Calculus

A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. The total volume of the solid is 2 cubic centimeters. Find the radius of the cylinder that produces the minimum surface area. (Round your answer to three decimal

asked by Ashley on November 7, 2012
60. ## Mechanics

Two blocks with masses m1 = kg and m2 = kg are connected by a string that hangs over a pulley of mass M = kg and radius R = m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the speed of m2 after it

asked by Costa on December 3, 2011
61. ## physics

a cannonball is fired horizontally from the top of a cliff. the cannon is at height H=60.0m above ground level , and the ball is fired with initial horizontal speed v_0 .assume acceleration due to gravity to be g=9.80 find d/2 int terms of v_0

asked by boboooo on November 27, 2011
62. ## Physics

1.)A force of 250 is just sufficient to start a 50 kg steel trunk moving across a wooden floor. Find the coefficient of static friction. 2.) compute the acceleration of the block sliding down a 30 deg inclined plane if the coefficient of kinetic friction

asked by John on August 22, 2014
63. ## SCIENCE?CHEMISTRY***

Dr Bob each time i do a problem on this site I have to print out answer....is there any way you know how to save it to usb stick???? I cant for the life of me find a save feature... also how do YOU when you give us a link to a site ...make it appear in

asked by ANDY on May 16, 2010
64. ## physics

A vertical spring stretches 13 cm when a 2.3 kg block is hung from its end. (a) Calculate the spring constant. This block is then displaced an additional 3.2 cm downward and released from rest. Find the (b) period, (c) frequency, (d) amplitude, and (e)

asked by Mariaaaaaaa on September 17, 2016
65. ## Physics

A ^9 {\rm {\rm Be}} nucleus containing four protons and five neutrons has a mass of 1.50×10−26 {\rm kg} and is traveling vertically upward at 1.45 {\rm km}/{\rm s}. If this particle suddenly enters a horizontal magnetic field of 1.15 {\rm T} pointing

asked by Kaitlin Carter on April 10, 2012
66. ## Physics

A car uniformly accelerates from 0 to 27.0 m/s. A 68.0-kg passenger experiences a horizontal force of 390.0 N. 1)How much time does it take for the car to reach 27.0 m/s? (Express your answer to three significant figures.) My teacher didn't explain how we

asked by Casey on November 7, 2016
67. ## Spanish Help

Si yo _________ (omitir) algo en esta carta, lo siento. a.omitimos b.omiten c.omito d.omites I know omitir means skip, and I know what the sentence says. I wanted to know if anyone could find me anything helpful when it comes to -IR verbs? I do not get the

asked by Katt<3Bobby on November 30, 2014
68. ## Government

How is a court case played out? As in, first then Judge is introduced, then what? And so on, I can't find it anywhere on the internet Thank you for using the Jiskha Homework Help Forum. You might watch Judge Judy, for example, or any other "court session"

asked by Ryan on May 17, 2007
69. ## statistics

any state auto insurance company took a random sample of 370 insurance claims paid out during a 1-year period. the average claim was $750 with a standard deviation of$150. find .99 confidence interval for the mean claim payment.

asked by b on April 27, 2012
70. ## Physics

A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. So I get that (1/2)MV^2 =

asked by Lindsay on December 6, 2007
71. ## probability

Let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. By performing some fancy and very precise measurements on the structure of

asked by alec on April 14, 2015
72. ## Math

You shop for bikes and find 7 types priced at 119 139 149 179 189 199 and 209. you want to buy the 189 bike would you use the mean median and mode to convince your parents that this is a reasonable price for a bike? explain Please help me

73. ## Math!

Change both measurements to the same unit of measure and find the scale factor. 1) 1ft model of a 1in. fossil 2) 20cm model of a 28m rocket 3) 2ft model of a 30yd sports field 4) 3ft model of a 5yd whale

asked by Person on December 6, 2017
74. ## History (Western Civilization)

Explain the importance of the Hebrews to the development of western civilization including the ideas of monotheism, the covenant, the Torah and Christianity. - Can someone briefy explain to me? I am searching through goggle but can not find the right

asked by C.J on September 6, 2013
75. ## Math

find the constant of proporionality and the unit rate for the data in the table. Then write an equation to represent the relationship between time t and distance d. Time(hours) Distance(miles 2 90 3 135 5 225 6 270 I need help asap i'm in connexus its a

asked by Lily on April 5, 2018
76. ## Physics

10 mol of an ideal gas expands isothermally at 373 K to 2.6 times its initial volume. Find the heat flow into the system. The universal gas constant is 8.31 J/K · mol. Answer in units of J. Any help much appreciated, I have no idea where to begin with

asked by Dj on April 16, 2017

an open box with a volume of 1500cm cubed is to be constructed by taking a piece of cardboard of 20 cm by 40 cm, cutting squares of sides length x cm from each corner and folding up the sides. show that this can be done in two ways, and find exact

asked by steph on November 10, 2011
78. ## algebra II Part 2

The equation h=7 cos{pi/3 t} models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched an then released. (C).Find the times at which the weight is at a height of 1 cm,of 3 cm,and of 5 cm below

asked by Karen on May 19, 2013

A light string of length a is attached to two points A and B on the same level and distance b apart, where b < a. A smooth ring of weight W is threaded on the string and is pulled by a horizontal force P, so that it rests in equilbrium vertically below B.

asked by John on April 1, 2012
80. ## phisecs

A car traveling at 26.8 m/s hits a stone wall . The driver, who is wearing a shoulder harness and seat belt, moves forward 0.99 m as the car stops. Assuming his acceleration is uniform, find his acceleration. in m/s2? (don't forget the (-) if negative)

asked by neon on February 19, 2014
81. ## algebra

The polynormial 0.041h-0.018a-2.69 can be used to estimate the lung capacity in liters of a female with height h, in cetimeters, and age a, in years. Find the lung capacity of a 40-year old woman who is 190 centimeters tall. Round to the nearest hunderd.

asked by Jackie on September 1, 2010
82. ## Social Studies

I'm writing an essay on North Korea. A few years ago in Social Studies, I remember watching a documentary that featured Americans who were illegally in North Korea to do charity work so there would be less starvation. Would you be able to help me find some

asked by Jennifer on October 17, 2009
83. ## math

An open box is to be made from a rectangular piece of tin 12 inches long and 10 inches wide by cutting pieces of x-inch square from each corner and bonding up the sides. find the formula that expresses the volume of the box as a function of x.

asked by jeniza on June 23, 2011
84. ## simple harmonic motion

Quick question: I need to find the acceleration, velocity and displacement at the mid point of SMH. So I know these are the equations: x(t) = Asin(ωt + φ) vx(t) = Aω cos(ωt + φ) ax(t) = −Aω2 sin(ωt + φ) I assume that the displacement is greatest

asked by Anon on October 27, 2017
85. ## nqwiliso s.s.s.

three forces act on a body.forceof 30N and 25N act to east and a force of 40N acts to the west.draw a fully labelled scale vector diagram to find the magnitude and direction resultant force use 1 mm : 1N.

asked by sigwetsha liveni on November 6, 2014
86. ## Geography

What role has the concept of nationalism played in the life of Russia in the past and present? I've looked in my textbook for information about this and couldn't find much about it. I've tried searching about Russian Nationalism, but am unsure of the

asked by Nikki on April 13, 2017
87. ## college math

A business associate who owes you 3600 dollars offers to pay you 3360 now, or else pay you three yearly installments of 1200 each, with the first installment paid now. Assume that the interest rate will be 7 percent (compounded continuously). Find the

asked by aj on March 14, 2011
88. ## Physics

Light from luminous point at the bottom of the glass slab of thickness 3 cm strikes the upper surface.The rays which are totally reflected at the top surface outline a circle of radius 2.4cm. Find refractive index of glass.

asked by Gash on March 13, 2019
89. ## Calculus

Alright, I want to see if I understand the language of these two problems and their solutions. It asks: If F(x) = [given integrand], find the derivative F'(x). So is F(x) just our function, and F'(x) our antiderivative? 1) F(x) = ∫(2, x)

asked by Justin on November 4, 2015
90. ## chemistry

I wonder if your science experts can help me find material (general information, word lists, books) in English about biodiversity in water and waterways and microbiological analysis of water. This would be for Italian biologists who are familiar with the

asked by Henry2 on November 29, 2011
91. ## college physics

im looking for steps in how to solve this type of problem also what else can the teacher add to make it difficult, like a spring instead of rope, or the block breaking off and how would you go about solving it thank you Two blocks are fastened to the

asked by amy on May 19, 2009
92. ## chemical experiment

If a 200-mm test tube is substituted for the gas buret in a Aluminum Analysis experiment ( collect H2 from the sample ,and measure its pressure and volume , then, find out its number of moles and Aluminum's percent in the sample) ,indicate the additional

asked by lamis on October 4, 2011
93. ## Algebra

Justin recently drove to visit his parents who live 480 miles away. On his way there his speed was 20 miles per hour faster than on his way home (he ran into bad weather). If Justin spent a total of 20 hours driving. Find the two rates.

asked by Scotch on March 22, 2016
94. ## English

I wonder if your science experts can be help find material (general information, word lists) in English which is needed to talk about biodiversity in water and waterways and microbiological analysis of water. This would be for biologists who are familiar

asked by Henry2 on November 29, 2011
95. ## Science

Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the

asked by John on November 30, 2011
96. ## statistics

The diameter of small Nerf balls manufactured at a factory in China is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of .08 inch. Suppose a random sample of 20 balls is selected. Find the interval that

asked by Josh on June 28, 2012
97. ## Decision Sciences/Models

Does anyone have expereince using the palisades tool package programs sucah as @risk and precisiontree in making decision making models? yes is it possible to email you a copy or post a copy of my case. i did it but im stuck on sensitivity analysis which i

asked by Joe on October 12, 2006
98. ## Science Physics

A pitched ball is hit by a batter at a 50° angle and just clears the outfield fence, 97 m away. Assume that the fence is at the same height as the pitch and find the velocity of the ball when it left the bat. Neglect air resistance. whats the answer m/s

asked by Gogol on December 29, 2010
99. ## algebra

The polynormial 0.041h-0.018a-2.69 can be used to estimate the lung capacity in liters of a female with height h, in cetimeters, and age a, in years. Find the lung capacity of a 40-year old woman who is 190 centimeters tall. Round to the nearest hunderd.

asked by jackie on September 2, 2010
100. ## physics

A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

asked by Ayman on October 14, 2017