# 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

93,362 questions, page 788
1. ## Chem

During your lab , you are provided with a stock antibody solution (Ab) that has a concentration of 400 ug/ul . you are provided with 10 ul( amount of stock antibody ) and 90 ul( amount of buffer ) . find the final dilution factor and the final Ab

asked by Maya on October 15, 2015
2. ## Statistics

Suppose a bag contains 7 red chips, 8 black chips, and 3 green chips. You draw two chips (without replacement) from the bag. Find the probability that you drew a red chip ﬁrst and then a black chip second.

asked by Savannah on April 30, 2010
3. ## Statistics

Please can some one help me with the following: A fisherman finds that approximately 17% of all his fish go bad by the time he takes them to the market. The fisherman catches 1,000 fish. A. How many will go bad by the time he takes them to the market? B.

asked by Alia on December 25, 2012
4. ## math

A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order. (a) Find m - n; (b) Express (m - n) as a product of its prime

asked by kd on October 31, 2018
5. ## MATH

100 bushels of corn are divided among 100 men, women, and children. Men receive 3 bushels each, women 2 bushels and children 1/2 bushel each. How can the bushels be distributed? is there more than one solution? if so, find the other solutions.

asked by Maggie on September 15, 2009
6. ## math

a box contains seven red marbles, five green marbles & eight blue marble. a marble is drawn at random & is replaced. a second marble is then drawn from ther jar. find the probabilty that the first marble is red & second is green

asked by thomas on March 17, 2016
7. ## Algebra

A tourist traveled on a motorboat against the current for 25 km. And then returned back on a raft. In the boat the tourist traveled for 10 hours less than on the raft. Find the speed of the current if the speed of the motorboat in still water is 12

asked by Andrew on March 22, 2016
8. ## Maths

Really really need some help here., There was an I.T. Fair. 2/9 of the visitors were children. There were 4000 more adults than children. The ratio of boys to the number of girls was 3:5. The ratio of number of men to number of women was 3:1. Find the

asked by J.Sarah on October 7, 2014
9. ## Statistics

Please can some one help me with the following: A fisherman finds that approximately 17% of all his fish go bad by the time he takes them to the market. The fisherman catches 1,000 fish. A. How many will go bad by the time he takes them to the market? B.

asked by Alia on December 26, 2012
10. ## Physics

A converging lens (f = 14.6 cm) is located 39.0 cm to the left of a diverging lens (f = -4.57 cm). A postage stamp is placed 34.2 cm to the left of the converging lens. (a) Locate the final image of the stamp relative to the diverging lens. (b) Find the

asked by Beth on July 14, 2012
11. ## the big idea of energy KS3

what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big

asked by blue babe on October 22, 2006
12. ## AP Physics: shot projectile??

The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to shoot at any elevation above the horizontal. The barrel is 2m long and the mass is 5 kg. Ignoring air resistance and assuming the

asked by Tyger2020 on September 5, 2017
13. ## Physics

The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? 294.13 u (b) What is the mass (in kg) of an aspartame molecule? kg I was able to find the mass units but I'm having

asked by Will on April 27, 2008
14. ## Statistics

A bag contains 5 blue candies and 6 green candies. You randomly pick a piece of candy from the bag, observe the color, then put it back in the bag. You repeat this process 5 times. Find the following probabilities (rounded to the nearest thousandths): a.)

asked by Keonn'a on October 13, 2018
15. ## Math

Suppose a deposit of \$3,500 in a savings account that paid an annual interest rate r (compounded yearly) is worth \$3,910 after 2 years. Using the formula A=P(1+r)^t, we have 3,910=3,500(1+r) ^2Solve for r to find the annual interest rate (to the nearest

asked by Keonn'a on November 24, 2018
16. ## Physics

How do I solve this problem? The answers were given. Two point charges are separated by 25.0 cm. Find the net electric field these charges produce at: (a) point A (Ans: 8740 N/C, to the right) (b) point B (Ans: 6540 N/C, to the right) (c) What would be the

asked by hana on September 25, 2019
17. ## math

i don't get 2 use the rate 380 miles in 5 hours 2 find the unknown number for each equivelent rate round to the nearset tenth I don't get your question. What "equivalent rates" are you talking about? 380 miles in 5 hours is an average speed of 76 miles per

asked by fre on April 15, 2007

Michael wants to rent a car on his vacation. The rental fee is 60 dollars per day plus a refueling charge of \$40. He has at most 400.00 to spend. The inequality 60d +40

asked by Mark on November 4, 2017
19. ## Statistics/Probability

Each day a bakery delivers the same number of loaves of bread to local shop on the corner. On average the shop sells 75% of loaves. Assuming that the number of loaves sold per day has binomial distribution with a standard deviation of 9. Find the number of

asked by Koylar on July 17, 2014
20. ## Algebra

A can of soda is placed inside a cooler. As the soda cools, its temperature T(x) in degrees Celsius is given by the following exponential function, where is the number of minutes since the can was placed in the cooler. T(x)=-22+44e^-0.03x Find the initial

asked by Jessica on June 15, 2011
21. ## help!

How are physical characteristics combined with behavioral characteristics by northern mammals to conserve heat during extreme periods? http://en.wikipedia.org/wiki/Hibernation http://en.wikipedia.org/wiki/Estivation In addition to the excellent information

asked by help! on August 12, 2006
22. ## Calc AB

Remember that f(x) must be one-to-one (only one y-value for each x-value) over the domain where f –1(x)is defined as a function. So, in some cases you must restrict the domain of f(x) so that it's one-to-one. There might be more than one section of

asked by Thomas on April 9, 2015
23. ## Mechanics for A-level

An object of mass 50kg rests on a rough plane inclined at an angle z to the horizontal. It is supported in this position by a light string parallel to the plane which is attached to the object and fixed to a point at the top of the plane. The string has a

asked by Bob on April 5, 2012
24. ## physics

A solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle θ = 30o. The sphere has mass M = 8 kg and radius R = 0.19 m . The coefficient of static friction between the sphere and the plane is μ = 0.64.

asked by stewart on November 6, 2014
25. ## Physics

I have some questions regarding motion problems. If I have a ball at initial velocity of 50m/s at 35 degree angle, to find horizontal and vertical components, I do the following: Vertical is 50(sin35)=28.68-rounded to 29 Horizontal = 50 (cos

asked by Katherine on October 8, 2010
26. ## physics

A cylindrical rod( length L, radius R and density d) is dipped vertically in to a liquid. the rod is connected by a wire to a balance that measures the force to lift the rod. the contact angle between rod and liquid is θ. If rod is partially immersed so

asked by kinjal on March 6, 2011
27. ## statistics

a sample of 50 women is obtained and their heights (in inches) and pulse rates (in beats per min) are measured. the linear correlation coefficient is 0.229 and the equation of the regression line y= 17.9 +0.870x where x represents hight. the mean of the 50

asked by robin on October 22, 2013
28. ## math - bearings

Been working on this question for a while. Have drawn a diagram (looks like a tilted trapezium, correct me if i'm wrong), but I still can't find any right angles to calculate the distance. Help would be appreciated, thanks. Question: A plane flies on a

asked by anonymous on January 12, 2018
29. ## Algebra

The blood alcohol concentration (BAC) of a person who has been drinking is given by the following expression. Number of ounce % alcohol x 0.075 divide body weight in pounds minus hour of drinking x 0.015 In 4 hours a 220lb person has drunk 5 12 ounce beer

asked by Lisa on October 6, 2013
30. ## AP Physics B

I'm unsure how to even start this problem or how I'm suppose to find out the distance at which destructive interference would occur... Two loudspeakers are 1.8 m apart. A person stands 3.0 m from one speaker and 3.5 m from the other. (a) What is the lowest

asked by AP Physics B on November 15, 2009
31. ## chemistry uncertainty rule

if I want to find the uncertainty for a certain molar mass containing 4 atoms of Oxygen, do I multiply the error and the MM by 4: like this 4(15.9994 plus of minus .0003) = 63.9976 plus or minus .0012 (distribute the 4?) or follow the rules for mult. of

asked by paul on September 25, 2015
32. ## Physics

A pilot must fly his plane to a town which is 200 km from his starting point in a direction 30 degrees N of E. He must make the trip in 1/2 hr. An 80km/h wind blows in a direction 30 degrees E of S. Find the speed of the plane relative to the ground, the

asked by Anonymous on March 1, 2008
33. ## physics

A cylindrical rod( length L, radius R and density d) is dipped vertically in to a liquid. the rod is connected by a wire to a balance that measures the force to lift the rod. the contact angle between rod and liquid is θ. If rod is partially immersed so

asked by kinjal on March 6, 2011
34. ## physics

A closed box is filled with dry ice at a temperature of -78.5 degree C, while the outside temperature is 21.0 degree C. The box is cubical, measuring 0.350m on a side, and the thickness of the walls is 3.00*10^-2 m. In one day, 3.10*10^6 J of heat is

asked by Mirenda on February 12, 2008
35. ## Maths

the angles of of evolution of the top of a hill from the City centres of two towns on either side of the hill are observed to be 30Â° and 60Â° respectively. if the distance of hill of the top from the city centre of first is 9 kilometre find in

asked by Angel on March 22, 2017
36. ## maths

Starting with x0 = 0 (x0 has diagonal 0 that is smaller and towards the bottom) use the iteration formuala xn+1 = 4/ xn^2 +5 twice (for xn+1 the n+1 is smaller than x and diagonal towards the bottom also for xn^2 the n^2 is smaller than the x and diagonal

asked by supersupersuper on January 3, 2017
37. ## Physics

A 3.30-kN piano is lifted by three workers at a constant speed to an apartment 28.8 m above the street using a pulley system fastened to the roof of the building. Each worker is able to deliver 197 W of power, and the pulley system is 75.0% efficient (so

asked by Kristin on June 17, 2012
38. ## History

I need help on how people influenced us. I am doing some history homework about the great depression (late 1920's through early 1940's) and I need some future connections like how did Duke Ellington influence us today? Or Walt Disney influence us

asked by Sam on February 20, 2013
39. ## English

I have read an excerpt to Legendary King Arthur. I'm trying to find the theme. I am debating on either a true hero never dies, or family can not always be trusted. In the story, they say that King Arthur might rise, and they believe that he has set a good

asked by Baeler on September 30, 2016
40. ## algebra

you want to build a playhouse for your sister in your backyard. You have the blue print which show the playhouse is 13 feet long and 12 feet wide. you want to change the dimension such that the lenght will be decreased and the width will be increased by

asked by sue on October 15, 2014
41. ## physics

A mass of 1.00kg is dropped from a height of 80cm onto a spring, of unstretched length of 20.0cm, which is resting on the floor. It comes to rest, momentarily, at a height of 10.0cm from the floor. If we can ignore friction, find the spring constant of the

asked by Trace on November 24, 2010
42. ## physic

Between the orbits of Mars and Jupiter, several thousand small objects called asteroids move in nearly circular orbits around the Sun. Consider an asteroid that is spherically shaped with radius r and density 3000 kg/m3 . You find yourself on the surface

asked by jose on October 10, 2015
43. ## macroeconomics

i have a college macroeconomics question due tommorow can u help?? economy decribed as follows: C=14,000+.5(y-t)-40,000r I=8000-20,000r G=7000 NX=-1800 T=8000 Y=40000 1)find a numeric equation relating planned aggregate expenditure to output and the real

asked by sam on December 11, 2007
44. ## maximizing profit calculus

During the summer months Terry makes and sells necklaces on the beach. Last summer he sold the necklaces for \$10 each and his sales averaged 20 per day. When he increased the price by \$1, he found that he lost two sales per day. a. Find the demand

asked by julie on November 11, 2007
45. ## Physics

A box starting from rest, slides down an incline which makes an angle of θ above the horizontal. The incline has a maximum height of h above the platform on which it sits which is itself H above the ground. The box leaves the end of the ramp and

46. ## Physics

A box starting from rest, slides down an incline which makes an angle of θ above the horizontal. The incline has a maximum height of h above the platform on which it sits which is itself H above the ground. The box leaves the end of the ramp and

asked by Zac on July 25, 2012
47. ## algebra

A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w

asked by Nate on November 4, 2014
48. ## cellbio

How many protons are pumped into the stroma for each ATP generated during Photophosphorylation in oxygenic phototrophs? What is the maximum number of ATP molecules that can be produced in the inner membrane of the mitochondria for every one molecule of

asked by tracey on October 29, 2006
49. ## AP Calculus AB

The fence around Wayne Manor (a rectangular plot of land) is going to be replaced. No fence will be required for the side lying along Gotham river. If the new wrought iron fence costs \$12 per meter for the side parallel to the river and \$4 per meter for

asked by Stephen on December 11, 2016
50. ## Marketing

Are investment spending market tests a good strategy or a waste of time and overly cautious? I'm working on a case study and I'm having trouble picking a side to argue. The instructor wants us to decide how promotion money should be allocated in the case.

asked by Lou on November 18, 2013
51. ## Collage Physics

n elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

asked by Sian on March 26, 2013

An open pipe 0.40m in length is placed vertically in a cylindrical bucket having a bottom area of 0.10 m^2. Water is poured into the bucket until a sounding tuning fork of frequency 440 Hz, placed over the pipe, produces resonance. Find the mass of water

asked by Garry on November 2, 2010
53. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
54. ## Finance

Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with risk-free securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A

asked by Billy on December 7, 2015
55. ## Calculus

A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is -32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time

asked by Kait on February 27, 2018
56. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
57. ## Collage Physics

An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

asked by Sian on March 26, 2013
58. ## chem

One atmospheric pressure is that which will support a column of mercury 760.0 mm high. Show that 1 atm equals 1.013 x 10^5 N/m^2. Take the density of Hg to be 13.60 g/cm^3 and the gravitational constant to be 9.80 m/s^2. (You may find unit analysis

asked by Chris on January 6, 2007
59. ## chemistry

What mass in grams of potassium hydroxide is cntained in 500 mL of solution that has a pH of 11.5? For Further Reading chemistry - DrBob222, Sunday, April 6, 2008 at 12:09am pH = 11.5 pOH = 14 - 11.5 = 2.5 pOH = -log(OH^-) ] 2.5 (OH^-) = ?? KOH ==> K^+ +

asked by Sarah on April 6, 2008
60. ## Finance

Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with risk-free securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A

asked by Billy on December 6, 2015
61. ## engineering physical

An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

asked by Sian on March 26, 2013
62. ## Financial Literacy

There are no answer choices it's a crossword puzzle. Money that helps students go to college; ____________ When colleges help a student find a job it's called ______ Money that is given by businesses and private organizations to help students go to

63. ## general

Can you list me what are the animals of the black forest ???? please Thanx http://www.google.com/search?q=schwarzwald+animals&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA You will find many different animals named in the

asked by AMY on March 19, 2007
64. ## physics

A physicist, upon awaking one morning to find his stove out of order, decides to boil the water for his wife's coffee by shaking it in a thermos flask. Suppose that he uses 520 cm3 of tap water at 56oF, that the water falls 1.35 ft each shake, and that the

asked by lizzy on April 23, 2008
65. ## English

1. Search the following topics on the Internet, and then fulfill/do the project. Write the addresses of foreign shopping sites after you find them. Chosse the items you want to buy and write down the names and prices. On which item did you spend the most?

asked by John on September 1, 2009
66. ## Pre-Calculus

I'm having trouble with this question. The number of horse-power H required to overcome wind drag on a certain automobile is approximated by: H(x)= 0.002(x)^2 + 0.005(x) - 0.029, [10 is less then/equal to (x) is less then/equal to 100]. Where x is the

asked by Sam on February 8, 2011
67. ## Chemistry

The much-abused drug cocaine is an alkaloid. Alkaloids are noted for their bitter taste, an indication their basic properties. Cocaine C17H21O4N, is soluble in water the the extent of 0.17g/100 mL solution, and a saturated solution has a PH = 10.08. What

asked by Sev on August 9, 2009
68. ## College Algebra

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with \$989.50 a month in take-home pay, then the amount you earned before the

asked by Nancy on April 18, 2011
69. ## Physics

A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is fastened to the bar at a

asked by Tessa on April 26, 2010
70. ## English

Sorry, I included the wrong post. I still have a few doubts on the following sentences. 1) The traffic isn't very heavy. 2) A security officer will control (check?) you for metal. 3) Get on the plane (not in), find your seat and wait for your flight

asked by Henry2 on December 1, 2011
71. ## Precalc

The figure shows a 10 x 10 square centered at the origin. The darker-shaded square is the image of this square, dilated by a factor of 0.8 and rotated about the origin by exactly the number of degrees, , so that its corners touch the sides of the parent

asked by Grace on January 19, 2012
72. ## math Subtraction equation

Please help me understanding this Aparasailer is attached by cable to a boat, she wear catches air and raises her into the air when the boat slows down to turn back towards the beach the parasailer chute catches less air and dip 25 meters. She must decent

asked by BJ on December 4, 2014
73. ## Fermats Little Theorem

Good morning, Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61 So 8^60 = 1 (mod 61) 8^120 = (8^60)^2 = 1^2 = 1 (mod 61) 123 = 2*60+3 So 8^2*60+3 = (8^60)^2 x 8^3 = 1^2 x 8^3 = 1 x 512 = 512

asked by Mat on October 15, 2016
74. ## Chemistry

"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve

asked by Jamie on March 26, 2014
75. ## Calculus

An aquarium is to be constructed to hold 2160 in3. The base is to made of slate and the sides of glass. If slate costs 5 times as much as the glass per sq in, find the dimensions that will minimize the cost of constructing the aquarium. I started going

asked by Patrick on November 28, 2014
76. ## chemistry

hey everyone out there im new to this forum so please be nice. hahaha :D as the subject says this is about ozone cracking. well my friend is doing a research assignment, and shes talking about ozone cracking. she has done your homework and found out that

asked by Anonymous on October 16, 2008

Find the value of the ordinary annuity at the end of the indicated time period. The payment​ R, frequency of deposits m​ (which is the same as the frequency of​ compounding), annual interest rate​ r, and time period t are given. amount ​1,000​;

asked by Braxton on March 1, 2017
78. ## physics

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second

asked by s on December 7, 2011
79. ## math

1.Partition a rectangle into rows and columns of same-size squares and count to find the total number of them. 2.Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third

asked by kodak on March 31, 2014
80. ## Trigonometry

Find cotangent theta given that cosecant theta equals -3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (-3.5891420) and then squared my answer. I then

81. ## Physics

The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 46 m in a straight line, reaching a final speed of 83 km/h. (a) Determine the cheetah's average acceleration during the

asked by Claire on September 14, 2012
82. ## Math(HELP!)

A farmer has 120 feet of fencing to enclose a rectangular plot for some of his animals. One side of the area borders on a barn. a.) If the farmer does not fence the side along the barn, find the length and width of the plot that will maximize the area? b.)

asked by Amy on October 15, 2015

Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))

asked by Krista on May 30, 2013
84. ## physics

3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 5 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 5 m. Find the values for each of

asked by Katelyn on October 25, 2016
85. ## Math Question

Hi! We asked this question last night but we got confused. Find the amount in the account if \$2000 is invested at 6.125%,compounded semi-anually, for 2 years. I worked this problem and Lydia worked this problem. I came up with the answer \$2,252.50 However,

asked by Logan and Lydia on February 27, 2007
86. ## physics

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second

asked by Anonymous on December 7, 2011
87. ## Calculus1

You are designing a 1000 cubic cm closed cylindrical can with radius r and height h. Assume that there is no waste in cutting the aluminum for the side of the can, but that the circular top and bottom are cut from square sheets of aluminum 2r by 2r. Find

asked by ACDub on April 9, 2014
88. ## math/science

I have a right angled triangle hyp=10,and angle=60deg.I need to find how much magnetic field in Tesla passes through the hyp(ie a wire in magnetic field) at this angle.I have tried 10*(sin60deg)=8.66T.My tutor says its 10*(cos60 deg)=5T.The field comes

asked by kyley on February 20, 2009
89. ## physics

In the figure below, the fresh water behind a reservoir dam has depth D = 13 m. A horizontal pipe 6.0 cm in diameter passes through the dam at depth d = 6.0 m. A plug secures the pipe opening. (a) Find the magnitude of the frictional force between plug and

asked by rock on January 28, 2011
90. ## physics

A 25kg child on a 2m long swing is released from rest when the swing supports make an angle of 30 degrees with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. (b) If the speed of the child at the lowest position is

asked by Anonymous on October 28, 2007
91. ## biology

a biologist prepared a strip of agar (a gelatin- like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A

asked by jessica cook on January 23, 2011
92. ## Math

Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))

asked by Krista on May 30, 2013
93. ## chem

When 3.517 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 11.59 grams of CO2 and 3.164 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 40.06 g/mol. Determine the empirical

asked by jillian on February 19, 2017
94. ## Algebra 1

Emily rows six miles downstream in 1 hour and her friend Ashley,rowing 1 mile per hour faster,completes the return trip in 2 hours. 1.Find the speed of the current(c) and each girls rowing speed. 2.If Emily and Ashley were rowing separately,who would

asked by Jane on May 7, 2013
95. ## year 8 maths

Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did

asked by Maria Chiara on December 11, 2009
96. ## math

Suppose there are 100 rabbits on an island and that the rabbit population can triple every half-year. Write an equation you could use to find the number of rabbits, R, after t, years. Using your equation, determine the amount of rabbits on the island in

asked by Monica on October 1, 2013
97. ## Pre-Calculus

Draw the picture and find the area of the parcel of land. Circle your to partial areas and your total area. You start herman a corn and walk 300 yards due north. Then, you turn N 63 degrees E and walk 260 yards. Then, you turn S 55 degrees E and walk 240

asked by Ash on December 3, 2015
98. ## biology

a biologist prepared a strip of agar (a gelatin- like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A

asked by stella on January 24, 2015
99. ## Physics

A 1.00 g mass hangs by a string next to an identical stationary mass. When both masses are given identical positive charges, the hanging charge swings out 3.00 cm from the vertical so that its string makes an angle of 30.0 degrees with the vertical. Find

asked by Katie on June 13, 2007
100. ## Trigonometry

Thank you for the respond!! I appreciate it. But it says on my paper 360 rev/min = 360 (2pi/60) rad/s = 12pi rad/s and so D= 2r = 2(s/theta) = 2(40/12pi) ft = 20/3pi ft = 2.12 ft should be the answer :( I have 2 more if that's alright. A point on the rim

asked by Geee on November 10, 2017