# 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 606
1. ## physics

The driver of a 1024 kg truck traveling 32.6 m/s North on I-77 has to make a sudden stop. If it requires a distance of 57.1 m for the truck to stop, use conservation of energy to find the net force acting on the truck.

asked by Sandy on December 9, 2009
2. ## physics

A beam of particles is directed at a 0.016-kg tumor. There are 2.1 x 1010 particles per second reaching the tumor, and the energy of each particle is 5.4 MeV. The RBE for the radiation is 14. Find the biologically equivalent dose given to the tumor in 16

asked by Sara on October 27, 2014
3. ## physics

What is the angular momentum (in kilogram-meter^2/second) of a 300.0 g ball rotating on the end of a string in a circle of radius 1.87 m at an angular speed of 1.50 rad/s? Is there certain equations to find angular momentum for different shapes?

asked by Jessica on April 12, 2012
4. ## Trigonometry

At a point on a level ground, the angle of elevationof a mountain top B is 42deg36min. At a pointD350 meters nearer the mountain, the angle of elevation is 51deg 43 min. Find the height of the mountain?

asked by Daniel on December 1, 2013
5. ## physics

A block of mass M hangs from a uniform rope of length L and mass m . Find an expression for the tension in the rope as a function of the distance y measured vertically downward from the top of the rope.(with the answer)

asked by Rumo on October 14, 2009
6. ## Physics

A long, straight metal rod has a radius of 6.00 cm and a charge per unit length of 36.0 nC/m. Find the electric field at the following distances from the axis of the rod, where distances are measured perpendicular to the rod. (a) 1.50 cm N/C (b) 13.5 cm

asked by gita on September 13, 2013
7. ## Math

Can someone check my answer for this homework assignment? What is the volume of a square pyramid that is built in a cube with edges of 12 inches? Square pyramid in 12-inch cube A. 48 in3 B. 144 in3*** C. 576 in3 D. 1,728 in3 Find the volume of a square

asked by Chiki on February 25, 2017
8. ## Physics

uniform door (0.81 m wide and 2.1 m high) weighs 122 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.5 m apart. Assume that the lower hinge bears all the weight of the door. (a) Find the magnitude

asked by Mildred on April 6, 2008
9. ## Physics

A uniform door (0.81 m wide and 2.1 m high) weighs 122 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.5 m apart. Assume that the lower hinge bears all the weight of the door. (a) Find the

asked by Kiante on April 4, 2008
10. ## math check

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple

asked by larry on February 8, 2007
11. ## Physics

Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating

asked by Brandon on January 29, 2014
12. ## science ( physics)

hello, i am having trouble with this problem. Calculate the average force of friction acting on a wood block as it is propelled along the floor by an elastic band ? my solution and my ideas: What does it mean by average froce of friction? I first weighed

asked by charlie on May 30, 2007
13. ## Trig - check my answers plz!

1. (P -15/17, -8/17) is found on the unit circle. Find sinΘ and cosΘ Work: P= (-15/17, -8/17) cosΘ = a value P = (a,b) sinΘ = b value Answer: cosΘ = -15/17 sinΘ = -8/17 2. Should the triangle be solved beginning with Law of Sines or Law of Cosines.

asked by Piper on February 3, 2009
14. ## Math

Could someone please help me out with the data homework? All I need is someone to check my answers. If any are incorrect could you please explain what I did wrong. 1. A student must answer 7 of 10 questions on an exam. How many different sets of questions

asked by Ashley on October 8, 2007
15. ## english

Section I: Make all necessary corrections to the following sentences. If a sentence has no errors, mark it correct as written: I did it but need reassurance. first sentence is teachers the second one is mine. 1. I’ve always wanted to go to college, it is

asked by peter on April 1, 2011
16. ## american government

I need help on these questions. Sorry if I put too many questions I'm just stuck on these. 1. In the relationship between the U.S. and Japan, the U.S. has put pressure on Japan to increase its involvement in world affairs. a. True b. False I think the

asked by huncho jack on March 13, 2018

1. These two technological advancements of the Industrial Revolution helped lead to the development of Impressionism. the railroads and the printing press the railroads and photography photography and electric lighting** the automobile and electric

asked by Mstv1112 on June 2, 2013

1. These two technological advancements of the Industrial Revolution helped lead to the development of Impressionism. the railroads and the printing press the railroads and photography photography and electric lighting** the automobile and electric

asked by Anonymous on December 3, 2012
19. ## Intro. to Comp.

Would you please check these for me? If any are wrong, let me know. 1.You currently live in a rural community and the local telephone company only provides analog lines. This means that in order to use your phone connection to access the Internet you will

asked by This is for MattsRiceBowl on June 26, 2007
20. ## English

Write this in your own words. what is Pollution? Pollution is the introduction of contaminants into the natural environment that cause adverse change.[1] Pollution can take the form of chemical substances or energy, such as noise, heat or light.

asked by Tommy on January 22, 2014
21. ## Math

CHECK AND CORRECT MY ANSWERS!! PLEASE!!:D:D Write the ratio in the simplest form. 45:15 9:3 3:1*** 1:3 4:1 Solve the following proportion. (solve p) p/3 = 8/12 2*** 8 12 24 A recipe calls for 3 cups of flour to make 3 dozen cookies. Use the proportion to

asked by Anonymous on November 13, 2017
22. ## Physics

A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 25.2 m/s A 1.0-kg stone is thrown from the basket with an initial velocity of 11.7 m/s perpendicular to the path of the descending balloon, as measured relative to

asked by daniela on September 25, 2015
23. ## Calculus

1) A particle is moving along the x-axis so that its position at t ≥ 0 is given by s(t) = (t)In(2t). Find the acceleration of the particle when the velocity is first zero. 2) The driver of a car traveling at 50 ft/sec suddenly applies the brakes. The

asked by James on October 2, 2017
24. ## Science

Two particles with masses 3.1 kg and 6.6 kg are connected by a light rod of length 4 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through: a) the midpoint of the rod; b) the center of mass of the system of

asked by John on November 30, 2011
25. ## Physics

A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

asked by None on November 8, 2014
26. ## college algebra

A rental company purchases a truck for \$14,500. The truck requires an average cost of \$6.75 per day in maintenance. (a) Find a linear function that expresses the total cost C of owning the truck after t days. C(t) = 1

asked by Barb on October 22, 2014
27. ## physics

You are riding in a boat whose speed relative to the water is 4.7 m/s. The boat points at an angle of 24.4° upstream on a river flowing at 13.1 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 25.9 m wide.

asked by Anonymous on September 10, 2012
28. ## math

Suppose that you deposit \$1735.50 in a savings account that pays 9.25% annual interest with interest credited to the account at the end of each year. Assuming no withdrawals are made, find the balance in the account after 4 years

asked by Jess on February 12, 2013
29. ## physics

You are riding in a boat whose speed relative to the water is 6.9 m/s. The boat points at an angle of 25.0° upstream on a river flowing at 15.1 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 26.5 m wide.

asked by LouLou on August 1, 2013
30. ## Science-physics

A ball is thrown horizontally from the top of a building 37.5 m high. The ball strikes the ground at a point 80.3 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 . Find the time the ball is in motion. Answer in units of s.

asked by Maggie on November 16, 2015
31. ## Area of Circles

Find the total area of three circles, each with a radious of 1 1/2 feet. Let ii stand for pie Te book gives the answer as 27ii/4 aprroimately 21.195 I know the equation and can calculate the 27. A=ii (1)^2 A=ii (1.5)^2=3 3 X 3 circles =27ii I am not clear

asked by G on May 9, 2009
32. ## Geometry

An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom half of the hourglass 2/3 full of salt, how much salt will you need? Explain the method you would use to find the amount of salt.

asked by Alexa on October 2, 2015
33. ## physics

You are riding in a boat whose speed relative to the water is 4.5 m/s. The boat points at an angle of 25.1¡ã upstream on a river flowing at 12.8 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 26.2 m wide.

asked by regina on October 7, 2013
34. ## math

Bay Area Rental Cars charges \$18 a day and \$.14 per mile for renting a car. You rented a car for 4 days and drove 313 miles. Find your total cost for renting the car.

asked by brianne on May 7, 2014
35. ## physics

You are riding in a boat whose speed relative to the water is 7.4 m/s. The boat points at an angle of 24.8° upstream on a river flowing at 15.2 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 26.1 m wide.

asked by Danielle on August 9, 2014
36. ## Astrophysics

If an eclipsing binary system has a period of 32 days, an orbital velocity of 153km/s, and an orbit that is nearly edge-on, what is the circumference of the orbit? The radius of the orbit? The mass of the system? I can't seem to find a starting point for

asked by Sheena on July 19, 2010
37. ## Physics

Two particles with masses 3.1 kg and 6.6 kg are connected by a light rod of length 4 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through: a) the midpoint of the rod; b) the center of mass of the system of

asked by kole on November 28, 2011
38. ## ALEGEBRA 1

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 2−x and y = 4x + 3 intersect are the solutions of the equation 2−x = 4x + 3. Part B: Make tables to find the solution to 2−x = 4x + 3. Take the integer values

asked by Annabelle on January 4, 2016
39. ## physics

An object of mass 0.50 kg on the end of a string is whirled round in a horizontal circle of radius 2.0m with a constant speed of 10m/s.Find its angular velocity and tension in the string( string is horizontal)answer should be 25.5 N

asked by Minoli on December 16, 2016
40. ## chemistry

A volume of 29.62 ± 0.05 mL of HNO3 solution was required for complete reaction with 0.8896 ± 0.0008 g of Na2CO3, (FM 105.988 ± 0.001). Find the molarity of the HNO3 and its absolute uncertainty. I have the molarity of HNO3 = 0.5667

asked by Amanda on August 30, 2012
41. ## CALCULUS

The voltage signal from a standard European wall socket can be described by the equation V(t)=325sin100 pi x , where t is time, in seconds and V is the voltage at time, t. Find the max and min voltage levels and the times at which they occur. Thanks in

asked by Anonymous on June 17, 2010
42. ## physics

A painter in a crate which hangs alongside a building, weighs 1000N.When the painter pull on the rope, the force he exerts on the floor of the crate is 450N. If the crate wieghs 250N, find the acceleration.

asked by liang on June 13, 2011
43. ## algebra

Suppose that in a particular game two dice are tossed, and various amounts are paid according to the outcome. Find the requested probability. (Enter the probability as a fraction.) If a seven or an eight occurs on the first roll, the player wins. What is

asked by Mary Ann on May 27, 2014
44. ## math

​State Bank made a loan at 12% interest for 360 days. If the amount of interest was \$934.20, use the ordinary interest method to find the amount of principal borrowed. (Round to the nearest whole dollar)

asked by Evelyn on July 31, 2017
45. ## math

find a polynomial A(x) that represents the new area. Tracie's garden is a square with sides of length x feet. Next spring she plans to make it rectangular by lengthening one side 3 feet and shortening the other side by 3 feet

asked by diva on February 6, 2010
46. ## Math (Calc) (Differential Equations)

The rate of change in the number of miles s of road cleared per hour by a snowplow is inversely proportional to the depth h of snow. That is, ds/dh = k/h Find s as a function of h given that s = 25 miles when h = 3 inches and s = 10 miles when h = 9 inches

asked by Ray on May 31, 2017
47. ## math

suppose the population of a town increases by 3% each year. the population of the town today is 25,000. use compound interest table to find its population ten years from now. (must give the answer to the nearest thousand)

asked by Corleone on June 5, 2009
48. ## Math

The COE price for a small car in January was \$16,525. In November, the COE price had increased to \$24,725. Find the percentage increase in the COE. Express your answer correct to 1 decimal place.

asked by Sheen on October 4, 2016
49. ## AP Calculus

The management of a large store has 1600 feet of fencing to fence in a rectangular storage yard using the building as one side of the yard. If the fencing is used for the remaining 3 sides, find the area of the largest yard possible.

asked by Sarah on December 14, 2014

a block with a mass of 5.00 kg is moving at 8.00 m/s^-1 along a frictionless horizonal surface toward a spring with force constant k= 500 N/m^1 that is attached to a wall.find the maximum distance the spring is compressed. the spring has negligible mass.

asked by taylor on February 23, 2012
51. ## science

A bullet moving at 200 pre miter square hit a bag of sand and comes to rest in 0.011s. what is the momentum of the bullet just before hitting the bag? find the average force that stopped the bullet

asked by philip on February 27, 2019
52. ## Algebra

I already posted this question,Steve answered it. I just wanted to clarify my answer. Problem:Find h(x) with terms in order of decreasing degree, if 9x^3-3x+1+h(x)=3x^2-5x+3. Steve: h(x) = (3x^2-5x+3)-(9x^3-3x+1) so, just subtract tghe coefficients of like

asked by Trish Goal on November 13, 2014
53. ## physics

The velocity of a vehicle is measured at two distinct points in time and found to be 30 m/s at 1.0 s and 10 m/s at 2.0 s. Find the acceleration (in m/s2) and initial velocity (in m/s) to complete the equation of motion for the velocity of the vehicle. v(t)

asked by sai on July 31, 2017
54. ## Math

A room is 18 feet long, 14 feet wide , 8 feet high. find the cost of painting the four walls with two coats of paint costing \$9.50 per gallon. each gallon covers 256 ft squared want with 1 coat .

asked by Mathdude on February 24, 2011
55. ## physics

A mechanic pushes a 2520 kg car from rest to a speed of v , doing 4310 J of work in the process. During this time, the car moves 22.4 m. Find the speed v . Neglect friction between car and road. Answer in units of m/s.

asked by allan on January 14, 2015
56. ## Education

Hi, I am looking for some good educational vidoes that I can find on Youtube. I found these really good ones of Crawford the cat. It is cartoon and it teaches you good manners such as washing your hands frequently, cleaning after your mess, etc. If you

asked by Sheena on October 17, 2009
57. ## trigonometry

From a point 55 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35 degree and 49 degree 20 minutes, respectively, Find the height of the steeple. (Round your answer to one decimal place).

asked by andre lessa on March 5, 2013
58. ## math

at one high school the mean time for running the 100-yard dash is 15.2 seconds with a standard deviation of 0.9 seconds. The times are very close approximated by a normal curve. Find the percent of times that are: between 15.2 and 16.1 seconds

asked by Leanne on July 14, 2008
59. ## Calculus

Given the function defined as f(x)=x^3-(3/2)x^2-6x+10 a) Explain why f(x) must have a root between x=-3 and x=-2 b) Write an equation of the line perpendicular to the graph of f at x=0 c) Find the x and y coordinates of the point on the graph of f where

asked by Kara on November 10, 2011
60. ## Chemistry

A volume of 29.62 ± 0.05 mL of HNO3 solution was required for complete reaction with 0.8896 ± 0.0008 g of Na2CO3, (FM 105.988 ± 0.001). Find the molarity of the HNO3 and its absolute uncertainty. I have the molarity of HNO3 = 0.5667

asked by Amanda on August 29, 2012
61. ## Finite Math

Assume that there are 14 board members: 9 females, and 5 males including Carl. There are 4 tasks to be assigned. Note that assigning the same people different tasks constitutes a different assignment. Find the probability that Carl and at least one female

asked by Jiali on September 10, 2012
62. ## physics

You are riding in a boat whose speed relative to the water is 4.7 m/s. The boat points at an angle of 24.4° upstream on a river flowing at 13.1 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 25.9 m wide.

asked by Anonymous on September 10, 2012
63. ## methods for teaching

please help me find some sites for the ff: 1. situational language teaching 2. audio-lingualism 3. communicative language teaching 4. total physical response 5. the silent way 6. community language learning 7. the natural approach 8. suggestopedia

asked by stunning gurl on December 9, 2007
64. ## stats. plz help i have exams in two days!

find the indicated prob.: the amount of snowfall falling in a certain mountain range is normally distributed with a mean of 86 inches, and a standard deviation of 12 inches. what is the probability that the mean annual snowfall during 36 randomly picked

asked by shasha on May 25, 2010
65. ## Physics B

A car, moving along a straight stretch of highway, begins to accelerate at 0.0261 m/s2. It takes the car 48.6 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s Couldn't find a formula for this :(

asked by Isaac on September 1, 2014
66. ## physics

A heat engine performs 272 J of work in each cycle while also delivering 241 J of heat to the cold reservoir. Find the efficiency of the heat engine. Give your answer in percent (%) and with 3 significant figures.

asked by Idali on April 6, 2017
67. ## Physics

A ladder 10-m long and weighing 50 N rests against a smooth vertical wall. If the ladder is just on the verge of slipping when it makes a 50 degree angle with the ground, find the coefficient of static friction between the ladder and the ground.

asked by Stacey on May 7, 2010
68. ## English

I have to read the book 'Nethergrave' by Gloria Skurzynski, but the online book doesn't seem to want to open on either of my computers so I assume the site is down. Does anyone know where I could find the book somewhere else online, I've been searching

asked by Emma on December 31, 2015
69. ## Algebra

Suppose that you deposit \$1735.50 in a savings account that pays 9.25% annual interest with interest created to the account at the end of each year. Assuming no withdrawals are made, find the balance in the account after 4 years

asked by Julie on October 18, 2015
70. ## phyics

A mechanic pushes a(n) 3980 kg car from rest to a speed of v, doing 5107 J of work in the process. During this time, the car moves 29.3m. Neglect friction between car and road. Find the speed v. Answer in units of m/s.

asked by leslie on February 27, 2011
71. ## statistics

Health Club Schedule The time per workout an athlete uses a stairclimberis normally distributed with a mean of 20 mins and a standard deviation of 5 min. An athlete is randomly selected. Find the probability that the athlete uses a stairclimber between 20

asked by Jessica on February 11, 2011
72. ## maths-surface area

The diameter of a road roller is 140cm and its length is 2.2m. It takes 400 complete revolutions to move over to level a stretch of a road 2.2m wide find the surface area of stretch of road leveled in m sq.

asked by anoynomous on March 12, 2013
73. ## Calculus

Given the function defined as f(x)=x^3-(3/2)x^2-6x+10 a) Explain why f(x) must have a root between x=-3 and x=-2 b) Write an equation of the line perpendicular to the graph of f at x=0 c) Find the x and y coordinates of the point on the graph of f where

asked by Kara on November 10, 2011

At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist heading north is riding 5 km/hour faster than the bicyclist heading south. At 10:30, they are 40.5 km apart. find both of their

asked by Rebecca on January 4, 2012
75. ## math115

Kristi jogged for 1/4 of an hour swam for 2/3 of an hour and rode her bike for 4/5 of an hour how long did she exercise? answer 1 hr 43 min Find the best buy on sugar (1LB is 16oz. )1 lb for \$1.29, 12oz for \$1.09 2 lbs 4 oz for \$3.09 10 oz for \$.99 answer

asked by melody on October 20, 2009
76. ## CALC HELP ASAP

suppose you need to construct a cone who surface area is 100 sq in. (A= pi*r*(sqrt( r^2+h^2), this is the amount of carboard needed to construct the cone. find values of r and h that will maximize the volume of the cone (V= (pi/3)r^2h Please help.

asked by CM on December 17, 2010
77. ## math cal

A plane flying horizontally at an altitude of 3 mi and a speed of 480 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away from the station. (Round to the nearest

asked by anna on November 17, 2010

A 230 kg steel crate is being pushed along a cement floor. The force of friction is 480 N to the left and the applied force is 1860 N to the right. What is the acceleration of the crate? (Hint: remember to find net force first) a=6.00 m/s2 a=28.1 m/s2

asked by Beth on June 3, 2016
79. ## ahmadu university zaria nigeria

A particles start from rest and acceleration passing 2 point (A and B)which are 100cm apart in 15seconds if the velocity of the particle at B is three times it velocity at A,find i)the velocity of the particles at A. ii)the accelation. iii) the distance of

asked by agora on May 2, 2013
80. ## physics

. Two people pull on a stubborn mule, as seen from a helicopter in Figure 2.1. Find (a) the single force that is equivalent to the two forces shown, and (b) the force that a third person would have to exert on the mule to make the net force equal to zero.

asked by Anonymous on September 4, 2011
81. ## CHEMISTRY

A compound which contains hydrogen, oxygen, carbon only has molar mass of about 85 g/mol. When 0.43 g of the compound is burned in excess of oxyfen, 1.10 g of CO2 and 0.45 g of H2O are formed. Find the molecular formula and the empirical formula of the

asked by Clive Lodnyx on July 18, 2016
82. ## Physics

A ladder 10-m long and weighing 50 N rests against a smooth vertical wall. If the ladder is just on the verge of slipping when it makes a 50 degree angle with the ground, find the coefficient of static friction between the ladder and the ground.

asked by RenRen on September 9, 2015
83. ## Maths

An open cardboard box is to be made by cutting squares of side x cm from each corner of a card of side 60cm and folding the resulting "flaps" up to form the box. Find the value of x that gives the box a maximum capacity.

asked by Smparis on September 8, 2015
84. ## Calculus

Consider the lamina ( with uniform density .01m) having the shape of the region Q in the xy-plane: 1≤x^2+y^2≤4. The density at each point P varies directly with the distance from P to the origin, with density at the point P(2,0,0) being 10kg/m3.Find

asked by JOhn on May 2, 2013
85. ## physics

(a) Find the electric potential difference V B − V A due to a point charge q 1 = −2.65 nC that is 0.250 m from location A and 0.410 m from location B. V (b) A charge q 2 moving from B to A gains in kinetic energy. What is the sign of this charge?

asked by mathew on April 1, 2015
86. ## physics

A ball is thrown horizontally from the top of a building 17.6 m high. The ball strikes the ground at a point 67.7 m from the base of the building. The acceleration of gravity is 9.8 m/s^2 Find the time the ball is in motion. Answer in units of s

asked by Liz on November 19, 2012
87. ## physics

In being served, a tennis ball is accelerated from rest to a speed of 25.5 m/s. The average power generated during the serve is 2920 W. Assuming that the acceleration of the ball is constant during the serve, find the force acting on the ball.

asked by Anonymous on February 23, 2015
88. ## Physics help

A 1.0 kg object is suspended from a vertical spring whose spring constant is 105 N/m. The object is pulled straight down by an additional distance of 0.25 m and released from rest. Find the speed with which the object passes through its original position

asked by david on November 15, 2010
89. ## Physics

Problem 1- A 4 kg puck can slide with negligible friction over a horizontal surface, taken as the xy plane. ˆ The puck has a velocity of 3i m / s at one instant ti = 0 . Eight seconds later, its velocity is to be ˆˆ 8i + 10 j m / s . Find the magnitude

asked by Maryam on November 18, 2013
90. ## Fluids in motion

Lubricating oil, with a relative density of 0.79, flows around a 90º bend. The pipe diameter is 0.45m, and the oil has a pressure head of 7m and the flow is 1.7m3/s. Find the force exerted by the oil on the bend.

asked by Henri on March 20, 2009
91. ## Cartesian Equation

Determine the Cartesian equation of each of the following planes: b) through the points (3,0,1) and (o,1,-1), and perpendicular to the plane with equation x-y-z+1=0 My teacher told me to find a direction vector, cross that with the normal, and set up my

asked by Lily on March 29, 2016
92. ## Critical Thinking

Do not understand. do you know where i can find examples? posts implementation plan in a flowchart format and a Gantt chart showing potential planning and scheduling of your implementation. Please include a written discussion of your implementation plan as

asked by Bryan on September 11, 2008
93. ## Physics

the wind blows with a force of 425N north on a sail boat, while the water exerts a force of 325N west on the sailboat. Find the magnitude and direction of the net external force on the sailboat.

asked by tom on April 9, 2012
94. ## Math

Don't understand the problem can somebody please help me The bottom of the rabbit cage is a rectangle with a perimeter of 118 inches. Let x be the cages width(in inches) and let y be its length (in inches). write an equation for the perimeter the find the

asked by Kim on November 11, 2012
95. ## math

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. Part B: Make tables to find the solution to 4x = 2x−2. Take the integer values of x

asked by faith on December 11, 2017
96. ## Physics

A block of mass 77.0kg is placed at the top of a frictionless plane that is inclined 46degrees to the horizontal. The height of the plane is 23.0meters. Find the speed of the block and the bottom of the plane. The correct answer is: 21.2m/s... I've tried

asked by Genny on June 11, 2012
97. ## english

I need to find the error in these sentences. 1. They is both happy. It has a subject and a verb. I'm lost. 2. This morning I watch TV before I drove here. .. need to know are they subject-verb agreement, run- on, verb form and tense or fragment. Please

asked by Renee on September 28, 2010
98. ## calculus

Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 9 - 9x^2 , y = 0 Find the volume V of this solid. Sketch the region, the solid, and a typical disk or washer. Any help or tips would be greatly

asked by Tina on March 8, 2011
99. ## physics

A block slides down a frictionless ramp. If the ramp angle is 22 degrees and the length of it is 25m. find the speed of the block as it reaches the end of the ramp, assuming it started sliding from rest at the top.

asked by rosie on December 9, 2010
100. ## Math

1. Given one side of a golden rectangle is 3.7 inches, find the possible lengths of the other side. Notice that the other side can be either longer or shorter than 3.7 inches. Round your answers to the nearest tenth and useGreek Phi normal.=1.618.