# 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 731
1. ## math

A pyramid has a height of 5 in. and a surface area of 90 in ^2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary. A.360 in. ^2 B.180 in. ^2 C.22.5 in. ^2 D.3.6 in. ^2 I think the answer is A but I

asked by Anonymous on February 20, 2015
2. ## CALCULUS

Postal regulations specify that a package sent by priority mail may have a combined length and girth of no more than 129 in. Find the dimensions of a cylindrical package with the greatest volume that may be sent by priority mail. Hint: The length plus the

asked by Anonymous on March 30, 2011
3. ## Math

Find the average rate of change in height of the orange from t=2 to t=5 (in feet per second) The equation is h (t)=605+15t-4.9t^2 in feet. I know the the average rate of change is change in q/ change in time. Do I put t=3 and subtract the quantity of 5 and

asked by John on January 4, 2017
4. ## physics

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said on May 19, 2011
5. ## Physics(Help! Help!! Help!!!)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
6. ## Physics(Help! Help!! Help!!!)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
7. ## Precalculus

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 55 degrees at midnight and the high and low temperature during the day are 62 and 48 degrees, respectively. Assuming t is the number of hours since

asked by HAHA on September 15, 2019
8. ## Physics(Help! Help!! Help!!!)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
9. ## Physics(Help! Help!! Help!!!)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
10. ## physics

10. The following three point charges are placed on the x axis: +5.0 mC at x=0; +4.0 mC at x= -40 cm; and +6.0 mC at x= +80 cm. Find (a) the electric field magnitude and direction and (b) the electric potential at x= +10 cm. a) E = k(5E-6)/.102

asked by tv on January 11, 2010
11. ## Physics(Help! Help!! Help!!!)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
12. ## math

A plane is flying at 168 miles per hour with a heading of 43.5° from due north. The wind is blowing a constant 33 miles per hour at 133.5° from due north. Find the ground speed and true course of the plane.

asked by matt on August 17, 2015
13. ## physics(urgent help)

a) Find the magnitude of the electrostatic force between 2 negative charges separated by a distance of 1augustro. b)what is the magnitude of gravit'l force between the negetive charges (electro)? c) determine the ratio of the gravt'l force and

asked by Said Help on May 20, 2011
14. ## math/physics

A Van de Graaff generator is charged so that the magnitude of the electric field at its surface is 3.0 multiplied by 104 N/C. (a) What is the magnitude of the electric force on a proton released at the surface of the generator? (b) Find the proton's

asked by jake on January 11, 2010
15. ## Physics

If you have a hydraulic lift and you know the density of the oil inside, the area of the cylinder and the area of the piston and the force that needs to be applied to lift as certain weight and the weight of that object...how do you find the height that

asked by Sara on December 7, 2009
16. ## Math

Jesse played two days of golf. On the second day, he got a score of 6 below par, or -6. His total for the two days was 0 above par, or 0. Define a variable. Then write and solve an equation to find the score Jesse got on the first day. Show your work.

asked by Anonymous on November 12, 2015
17. ## Math

Alice has a basket containing 6 red socks, 4 blue socks, and 12 white socks. Find the theoretical probability that Alice will randomly select a red sock from the basket. I think I have to add the number of socks to know the total and then divide 6/22.

asked by Anonymous on June 28, 2015
18. ## physics

a ball is thrown at a vertical velocity to an angle of 30 degree above the horizontal and rises to a maximum height of 50 meters.if the angle is tripled find the maximum height and the horizontal range of a projectile for the same intial velocity

asked by Laila on October 1, 2013
19. ## Ap calc

Consider the function h(x) = a(-2x+1)^5-b, where a doesn't equal 0 and b doesn't equal 0 are constants. A. Find h'(x) and h"(x) B. show that h is monotonic ( that is, that either h always increases or remains constant or h always decreases or remains

asked by James on February 18, 2013
20. ## algebra

Find the values of the 30th and 90th percentiles of the data. 129, 113, 200, 100, 105, 132, 100, 176, 146, 152 i found 30th to be 105 and 90th to be 176 because i think its 30/10 * 10 = 3?? im not sure

asked by jess on January 25, 2019
21. ## physics

A 13 g toy car moving to the right at 22 cm/s has a head-on nearly elastic collision with a 22 g toy car moving in the opposite direction at 30 cm/s. After colliding, the 13 g car moves with a velocity of 43 cm/s to the left. Find the speed of the second

asked by luma on December 19, 2015
22. ## math

Stacey used her 20% discount card to buy 7 cans of tomatoes and 15 cans of mushrooms for \$10.64. The next day Brian spent \$ 7.21 on 17 cans of tomatoes and 5 cans of mushrooms in a "30% off" sale. Find the undiscounted pre- sale price of each type of can.

asked by Tom on May 12, 2013
23. ## elementary and intermediate algebra

how to write the equation for the following problem: The Post office charges extra for packages that must be processed by hand. Find an equation for the nonmachinable cost n in terms of the machinable cost m. 1 pound is \$ 2.74( machinable cost,

asked by alicia on September 27, 2012
24. ## Probability

Consider the experiment of simultaneously tossing a die and a coin. Let X denote the number of heads and Y denote the number of spots showing on the die. a)construct a two-way table for the joint pdf b)Let Z=X+Y . Use the joint pdf to find the distribution

asked by Jenna on October 25, 2011
25. ## Physics

A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary carbon nucleus of mass 12m. Find the velocities of the proton and the carbon nucleus after the collision. vp = m/s vcarbon = m/s

asked by Anonymous on October 29, 2014
26. ## Physics

A box rests on the back of a truck. The coefficient of static friction between the box and the bed of the truck is 0.300. (a) When the truck accelerates forward, what force accelerates the box? (b) Find the maximum acceleration the truck can have before

asked by Ingo on September 23, 2009
27. ## math

John and Allen are bicycle riders that are currently 30 miles apart on a certain trail. If they leave at the same time and travel in the same direction, John overtakes Allen in 6 hours. However, if they leave at the same time but travel toward each other,

asked by Anonymous on August 10, 2015
28. ## Statistics

You Buy a lottery ticket to a lottery that cost \$10 per ticket. There only 100 tickets available to be sold in the lottery. In this lottery there are one \$500 prizes, two \$100 prizes and four \$25 prices. Find your expected gain or loss. Do you still want

asked by Javier on May 3, 2016
29. ## physics

A rocket of mass 4.36 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 58.9° above the horizontal and has a magnitude of 9.61 × 106 N. Find the (a) magnitude and (b) direction of the rocket's acceleration. Give the

asked by sam on June 24, 2013
30. ## calc

Suppose the cost C(q) (in dollars) of producing a quantity q of a product equals C(q) = 500 + 2q +1/5q^2 The marginal cost M(q) equals the instantaneous rate of change of the total cost. Find the marginal cost when a quantity of 10 items are being

asked by ty on February 8, 2010
31. ## Statistics

You buy a lottery ticket to a lottery that cost \$10 per ticket. There are only 100 tickets available to be sold in this lottery. In this lottery there are one \$500 prize, two \$100 prizes, and four \$25 prizes. Find your expected gain or loss. Do you still

asked by Javier on May 3, 2016
32. ## physics

find the rotational kinetic energy of the earth about the sun due to its orbital about the sun. The mass of the each M is 6 X 10^24 kg, the orbital radius r is 1.5 X 10^11 m and the rotational period T is 1 year. Hint, treat the earth as a point mass in

asked by pakilina on November 25, 2011
33. ## trig

two trains leave Kansas City at the same time. Train A is traveling due north at 55 mph, train B is traveling west at the rate of 65 mph. Find the distance between the two trains two hours later and the bearing of train B from train A.

asked by Anonymous on October 16, 2012
34. ## math/physics

A Van de Graaff generator is charged so that the magnitude of the electric field at its surface is 3.0 multiplied by 104 N/C. (a) What is the magnitude of the electric force on a proton released at the surface of the generator? (b) Find the proton's

asked by jake on January 11, 2010
35. ## math

A rectangular skating rink measuring 30m by 20m is doubled in area by adding a strip at one end of the rink and a strip fo the same width along one side of the rink. Find the width of the strips if the enlarged rink is still rectangular.

asked by tina on December 5, 2010
36. ## physical

staring from rest, a 3.5 kg object is acted upon by an unbalanced force and acquires a speed of 14.0 m/s after moving a distance of 35 m. find (a) the acceleration of the object, (b) the unbalanced force acting on the object, and (c) the time it takes for

asked by john on September 11, 2017
37. ## Geometry Part 2

A highway makes an angle of 6 with the horizontal.This angle is maintained for a horizontal distance of 5 miles.To the nearest hundredth of a mile, how high does the highway rise in this 5- mile section?Show the steps you use to find the distance.

asked by Karen on April 15, 2013
38. ## Statistics

32% of adult internet users have purchased products or services online. For a random sampling of 200 adult users, find the mean, variance and standard deviation for the number who have purchased goods or services online?

asked by Kay on March 17, 2013
39. ## Math

x^(1/3)(x+3)^(2/3). Doing curve sketching and cannot seem to figure out what the values are to fill out the chart(intervals-f''-behaviour). I can't seem to find the conacvity values, i don't think they exist. How should I prove that they don't exist? Or do

asked by Bob on January 19, 2016
40. ## Math/Physics

I am given a damping constant of 20 dyne*sec/meter...do I need to convert this if the rest of my givens are, for mass = 2kg, k (spring constant) = 82 N/m. I am trying to find the equation of motion of a spring but cannot solve it until I know how to

asked by COFFEE on July 13, 2007
41. ## Calculus-Function

sketch the graph of a function in neighborhood x=2 that satisfies these conditions f(2)=3 f'(2)=2 f"(2)=-1 you can find a specific function that satisfies all of the given conditions i know the first derivative gives you critical points, and second

asked by Liliana on April 29, 2013
42. ## precalculus

Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 90 and 70 degrees, respectively. Assuming t is the number of hours since

asked by marie darling on March 26, 2013
43. ## Math

The road connecting two mountain villages goes only uphill or downhill. A bus always travels 15 mph uphill and 30 mph downhill. Find the distance between the villages if it takes exactly four hours for the bus to complete a round trip.

asked by Sioux on June 18, 2009
44. ## Math

A calf is tied with a rope of length 6m at the corner of a square grassy lawn of side 20m. If the length of the rope is increased by 5.5m, find the increase in area of grassy lawn in whi the calf can graze.

asked by Anonymous on January 24, 2016
45. ## trig

Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest whole number. Round your answers for sides c and c' to two decimal places. If either triangle is not possible, enter NONE in each corresponding

asked by janice on November 16, 2012

When an object is placed 55.0cm from a certain converging lens, it forms a real image. When the object is moved to 45.0cm from the lens, the image moves 6.00 cm farther from the lens. Find the focal length of this lens? Please someone help me out I tried

asked by Laila on March 27, 2013
47. ## Linguistics

Each set can be identified by means of a single common featue. List the feature. { t, n, l } { Ɛ, o, e } { Ɛ, g, j } ---------------- The first set is alveolar, and the second set comprises mid vowels. But I can't find the common feature of the third

asked by Roger on April 12, 2018
48. ## Geometry

find 1 counter example to show the each conjecture is false. that means prove the follwing statment false. The product of 2 positive numbers is greater than either number. ok so I know product means to multiply but if you multiply you get a bigger number .

asked by tori on August 22, 2007
49. ## math

A factory finds out that on the average 20% of bolts produced by the given machine will be defective.if 10 bolts are selected at random from the day's production of this machine,find the probability that 1.exactly 2 will be defective. 2. 2 or more will be

asked by Bravo on March 28, 2016
50. ## algebra

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

asked by Molly on June 19, 2012
51. ## Math

A)how do I find an inverse variaton equation that model: Length(in.) 4 6 8 9 10 Breaking weight(pennies)24 16 13 11 9 B)Explain how your equation shows that breaking weight decreases as length increases. Is this pattern reasonable for this situation?

asked by Taylah on December 5, 2010
52. ## Science

An archer fires an arrow, by applying an average force of 182 N across a distance of 38.0 cm on the bow. If the arrow has a mass of 22.0 g, find its velocity when the archer releases the bow: a)if the conversion is 100% efficient. b)if the conversion is

asked by Jackson on May 16, 2017
53. ## statistics

150 students is 60 kg the mean of body is 70 kg withstandard deviation of 10 kg and mean weight of girls is 55 kg with standard deviation of 15kg.calculate the number of boys and the combined standard deviation. Also find whether the coefficient of

asked by Anonymous on August 11, 2014
54. ## Algebra-HELP!!!!

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

asked by Molly on June 19, 2012
55. ## math

Bill can mow his mother's lawn in 45 minutes. His brother Jim can mow it in 65 minutes. How long will it take them to do it together, if each has his own lawnmower? (Record your answer in minutes rounded to one decimal place. For example, if the answer you

asked by sam on September 9, 2015
56. ## algebra

When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

asked by Molly on June 19, 2012
57. ## Math

Eight-ninths of a bunch of marbles remain on a table. The square root of half the total number of marbles have rolled away. Also, the two children who are playing with the marbles each hold one marble. Find the total number of marbles in the bunch.

asked by Scott on October 20, 2014
58. ## physics

A cyclist starts from point X and rides 3 km due west to point Y. At Y he changes direction and rides 5km north-west to point Z. (a) hw far is he from the starting point, correct to the nearest km? Find the bearing of the Z frm X to the nearest degree?

asked by Anonymous on March 11, 2012
59. ## Finance

An individual has \$17000 income in period 0 and \$60,000 income in period 1. If the individual desires to consume \$30,000 in period 1, what is the maximum consumption in period 0 assuming the interest rate is 6%? I can't find a formula to solve this

asked by Will Jr. on February 2, 2008
60. ## science

An empty truck wieght 4000N.its engine can produce a maximum acceleration 1m/s square .if truck is loaded with 2000N,find the maximum acceleration the engine can produce.i want watch video of this question.physic

asked by jahangir on September 13, 2017
61. ## PHYSICS

Bill is standing on a bridge and kicks stones to the water below. If bill kicks a stone with a horizontal velocity of 3.5 m/s, and it lands in the water at a horizontal distance of 5.4m. What is the height of the bridge? Do I need to find the time first??

asked by vernita on October 22, 2009
62. ## math

Triangle XYZ has vertices X(-5,3), and Z(7,-6). Find the coordinates of vertex X after the triangle is dialated using a scale factor of 4. I saw that you didn't want to see another post if we didn't try working it out first. But I need help understanding

asked by marie on December 28, 2012
63. ## trig

A surveillance satellite circles the earth at a hight of h miles above the surface. Suppose that d is the distance, in miles, on the surface of the earth that can be observed from the satellite. find an equation that relates to central angel (theta) to the

asked by Charles on March 8, 2011
64. ## chemistry

You extract the iron from a tablet and dilute that to 350.0 ml in a volumetric flask. You transfer 0.500 ml of this solution to a 75.0 ml volumetric flask and dilute this to volume. When you measure the concentration of this solution, you find that it is

asked by Kelcie on October 28, 2012
65. ## Physics-mechanics

A satellite is placed in orbit, with a radius that is half the radius of the Moon's orbit. Find the period of the satellite in units of the period of the Moon. (sketch and analyze the situation, show all working so I can understand how you arrived at your

asked by Rebecca on December 27, 2012
66. ## MATH

The ratio of the diffusion rates of two gases is given by the formula r1/r2=square root m2/square root m1 wherem1 and m2 are the masses of the molecules of the gases. find r1/r2 if m1=12 units and m2=30 units. your answer should be in simplified radical

asked by HELP PLZ on April 21, 2018
67. ## Math

A steel wire,when bent to form a square encloses an area of 484cmsq. If the same wire is bent to form a circle,find the area of the circle. Gve me ful sltn plz nd ans is 616cmsq.

asked by Simran kaur on September 13, 2012
68. ## Chemistry

2NaOH+2Al+2H2O --> 2NaAlO2+3H2 here is the reaction. If i am trying to find the mass of hydrogen produced and i am trying to convert .95 moles Al to moles H, which number from the reaction do I use for H when converting from moles to moles? Do I 6 because

asked by Erica on March 9, 2012
69. ## Re: Physics/Math

At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (9.00i + 8.00j) m/s^2. It moves at constant speed. At time t2 = 3.00s (3/4 of a revolution later), it's acceleration is (8.00i - 9.00j) m/s^2. Find the radius of the

asked by COFFEE on February 18, 2007
70. ## physics

A 1.9 kg block slides down a frictionless ramp, as shown in figure 8-28. The top of the ramp is 1.5 m above the ground; the bottom of the ramp is .25 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d away.

asked by tony on October 20, 2010
71. ## math..word problem

The road connecting two mountain villages goes only uphill or downhill. A bus always travels 15 mph uphill and 30 mph downhill. Find the distance between the villages if it takes exactly four hours for the bus to complete a round trip.

asked by M.A. on June 18, 2009
72. ## Physics-mechanics

A satellite is placed in orbit, with a radius that is half the radius of the Moon's orbit. Find the period of the satellite in units of the period of the Moon. (sketch and analyze the situation, show all working so I can understand how you arrived at your

asked by Rebecca on December 27, 2012
73. ## Physics

The soccer goal is 32.26 m in front of a soccer player. She kicks the ball giving it a speed of 20.62 m/s at an angle of 28.29 degrees from the horizontal. If the goalie is standing exactly in front of the net, find the speed of the ball just as it reaches

asked by Anonymous on October 27, 2012
74. ## Chemistry

Find the pressure of a gas that originally had a volume of 25 L, pressure of 67kPa at a temperature of 100 Kelvin. When the gas was heated to 200 Kelvin, it had a volume of 56L. How many moles would be present if the gas in the above question was an ideal

asked by Kiley on February 6, 2012
75. ## Chemistry

You extract the iron from a tablet and dilute that to 250.0 ml in a volumetric flask. You transfer 0.400 ml of this solution to a 25.0 ml volumetric flask and dilute this to volume. When you measure the concentration of this solution, you find that it is

asked by Spider on April 11, 2013
76. ## Math

A factory produces x calculators per day. The total daily cost in Shillings incured is 5x^2-800x+500. If the calculators are sold for sh (100-10x) each, i, Determine the profit function ii, Find the number of calculators that would maximize the daily

asked by Mesh on November 18, 2015
77. ## Math

A factory produces x calculators per day. The total daily cost in Shillings incured is 5x^2-800x+500. If the calculators are sold for sh (100-10x) each, i, Determine the profit function ii, Find the number of calculators that would maximize the daily

asked by Mesh on November 19, 2015
78. ## Math

A factory produces x calculators per day. The total daily cost in Shillings incured is 5x^2-800x+500. If the calculators are sold for sh (100-10x) each, i, Determine the profit function ii, Find the number of calculators that would maximize the daily

asked by mesh on November 30, 2015
79. ## Calculus

A container in the form of a right circular cone of height 16 cm and base radius 4 cm is held vertex downward and filled with liquid. If the liquid leaks out from the vertex at a rate of 4 cm^3/s, find the rate of change of the depth of the liquid in the

asked by Helga on November 21, 2011
80. ## Physics

The soccer goal is 23.05 m in front of a soccer player. She kicks the ball giving it a speed of 17.97 m/s at an angle of 25.83 degrees from the horizontal. If the goalie is standing exactly in front of the net, find the speed of the ball just as it reaches

asked by Lindsay on November 6, 2007
81. ## physics

An incident X-ray photon of wavelength 0.2800nm is scattered from an electron that is initially at rest. The photon is scattered at an angle of 180.0 degrees and has a wavelength of 0.2849nm. Use the conservation of linear momentum to find the momentum

asked by Leah on April 26, 2008
82. ## trigonometry- college

For two hours, a boat sails straight from port A to port C with a speed of 50 miles per hour. Port B is due east of port A, and the bearing of line segment BC is 20 degrees south west. Find the bearing of line segment AC. I really don't know what's the

asked by jessica mantujac on February 21, 2015
83. ## more math

1.) If c=12âˆš3 cm, then a=___ and b=___. 2.) A refrigerator has a width of 3 feet. The angle of elevation from the bottom corner to the opposite corner is 65º. What is the height of the refrigerator? 3.) In a 30-60-90 triangle, the shorter leg has

asked by Unknown on June 12, 2010
84. ## Statistics

A family consists of ten children. Assuming that the sexes are equally probable, find the expected number of boys in the family. What is the probability that the expected number of boys will not occur? (Not sure where to start) I got partial credit and I

asked by Megan on October 19, 2015
85. ## Math Help and check

The weights of ripe watermelons grown at Mr. Smith's farm are normally distributed with a standard deviation of 2 lb. Find the mean weight of Mr. Smith's ripe watermelons if only 5% weigh less than 18 lb. (Give your answer correct to one decimal place.)

asked by Tom 6 on June 15, 2013

The research department for a hardware chain has determined that at one store the marginal price of x boxes per week of a particular type of nail is: p'(x)=-4000/(2x+15)^3 Find the demand equation if the weekly demand for this type of nails is 10 boxes

asked by Alex on December 4, 2006
87. ## kcc ..... mechanics(sub)

2 spherical ball aer kept inside ..weight of ball a 3000N. weight of ball b 2000N.. and all surfaies are smooth find the reaction between ball and container............plz sir give me the answer this question ...in this question figure is given but i m not

asked by sandeep on September 9, 2011
88. ## physics repost

Three masses are aligned along the x axis of a rectangular coordinate system so that a 2 kg mass is at the origin, a 3kg is at (2,0) m, and a 4 kg mass is at (4,0) m. Find (a) the gravitational force exerted on the 4 kg mass by the other two masses and (b)

asked by Anonymous on December 9, 2007
89. ## chem

how many milliter of .246 M HNO3 should be added to 213 ml of 0.00666 M 2,2'-bipyridine to give a pH of 4.19? please help, does this problem need to be solved with ka or kb?. Is 2,2'- bipyridine a base, this is the problem from my text book, but it is not

asked by bun on February 2, 2010
90. ## physics

3. A man leaves his home by car and travels 5 km on a road running due East. The driver then turns left and travels 2 km due north to a junction where he joins a road that goes North West and drives a further 2 km. Find his displacement from home by then.

asked by karen on February 2, 2014
91. ## Chemistry.

The complete combusion of 0.5763 grams of glucose in a bomb calorimeter (Cbomb = 6.20 kJ/degrees C) raises the temperature of the calorimeter by 1.45 degrees C. what is the food value of glucose in calories per gram? (Hint: remember 1 Cal = 4.184 kJ) i do

asked by Rachel on March 29, 2011

the velocity of a particle moving along the x axis is v(t)=t^2+2t+1, with t measured in minutes and v(t) measured in feet per minute to the nearest foot find the total distance traveled by the particle from t=0 to t=2 minutes so, I took the integral of the

asked by Ke\$ha on May 22, 2017
93. ## word problem

A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.

asked by Sammie on September 24, 2010

A 2.10 kg frictionless block is attached to an ideal spring with force constant 315N/m . Initially the block has velocity -3.75m/s and displacement 0.270m . Find (a) the amplitude of the motion. (b) the maximum acceleration of the block. (c) the maximum

asked by john on March 27, 2012
95. ## physics

A typical steel B-string in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s, but do not enter units. IS THE ANSWER 148.8m/s?

asked by Jamie on March 31, 2011
96. ## statistics

In a poll of voters in a certain city, 32% said that they backed a bill which would limit growth and development in their city. The margin of error was reported as 1.7% with 90% confidence. Determine the bounds for the confidence interval. A. (88.3%,

asked by debbie on October 23, 2011
97. ## chemistry

A 2.000g sample of magnesium was burned in air to form an oxide. After the product was purified it was found to have a mass of 3.317g. What is the empirical formula for the product? I know how to find a empirical formula, I just don't understand what

asked by Tatiana on October 29, 2009
98. ## psychology

I need to write a psychological literature review on a specific area from one of the topics below: -Human Development -Motivation and Emotion -Personality Theories and Therapies -Psychological Disorders What is a literature review and how to write one? Why

asked by mic_ on July 30, 2009
99. ## chemistry

Use activity coefficients to find the concentration of hydrogen ions in a solution of 90.0 mM butanoic acid and 0.05 M NaCl. The ionization constant of butanoic acid is Ka = 1.52 × 10-5. Take the size of C3H7COO– to be 500 pm. How do I calculate the

asked by Elena on October 3, 2014
100. ## chemistry

The volume of an aqueous solution of NaCl at 25oC is expressed as a function of the amount m in 1kg of solvent in the following form; V/cm3 = 1000.94 + 16.4 (m/mol) + 2.14 (m/mol)3/2 - 0.0027 (m/mol)5/2 Find the partial molar volume of NaCl and water in 1

asked by pritisha on August 13, 2018