Sunday
August 31, 2014

Posts by Joe


Total # Posts: 2,048

math
sorry i forgot to say that i dont need the answer... i need an equation or expression that models this situation.
September 3, 2012

math
a man who is 5 feet tall stands 15 feet from a lamppost that is 27 feet high. how far away from the man is the tip of his shadow?
September 3, 2012

7th grade math
What's the quickest amount of time that all four kids can get across a bridge with on kid always going back to get the other. 1 kid took 5 minutes 1 kid took 10 minutes 1 kid took 20 minutes 1 kid took 25 minutes
September 3, 2012

Business
Assume that garbage collection is now free. Suppose a local goverment began to charge a household $2 every time that a household put out a can of trash for weekly garbage collection. Using the concept of opportunity cost explain how this might alter behavior.
September 1, 2012

math
you lie sir!!! ^
August 31, 2012

Calculus
A person needs to swim to shore from Point A and walk to Point B. They can swim at 2mph and walk at 4 mph. Write an expression for the total time their journey will time their journey will take in terms of x. Then use your graphing calculator to estimate the value of x which ...
August 30, 2012

math
If a+2b/a-2b=3, determine the value of a+3b/a-3b
August 28, 2012

Math
If you are estimating a problem like 147 divided by 5, is five a 10?
August 15, 2012

health
no keep posting its very helpfull
August 11, 2012

Math
A fraction of a square mile is a field that is a 1/2 mile long and 1/4 mile wide. What is the fraction?
August 10, 2012

Physical Sciences
.25L times .5M=.125moles .125 times 40= 5 grams
August 10, 2012

Physics
An air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air. This puck bumps nearly head-on into a second puck that has 3 times the mass, moving in the opposite direction but with the same speed, v i , as the lighter puck. Immediately ...
August 6, 2012

math
a diving board is 4 feet above a pool that is 15 feet deep. The total length of a person's dive is 10 feet. How many feet below the surfac of the water did the person dive
August 6, 2012

Earth Science
I need help with the following Lab due tonight, 7/30/12, as I feel completely lost and would appreciate the help. The lab goes as follows: Design an experiment that illustrates the determination of the density of a cylindrical object found in the Lab Kit. Prepare a dynamic ...
July 30, 2012

physics
If an engine produces a (mass flow rate) of 100kg/s of thrust, what is the force in Newtons?
July 19, 2012

Chemistry
For the reaction 2NH3(g) 3H2(g) N2(g) at 472oC equilibrium is established when [H2] =0.0200M, [N2] = 0.0100M and [NH3] = 5.37x10^_8 M. What is the equilibrium constant for the reverse reaction?
July 16, 2012

Physics
A ball (mass m = 250 g) on the end of an ideal string is moving in a circular motion as a conical pendulum. The length L of the string is 1.84 m and the angle with the vertical is 37 degrees. a) What is the magnitude of the torque (N m) exerted on the ball about the support ...
July 11, 2012

Physics
Any idea how I was hung up on 2nd one?
July 11, 2012

Physics
A ball (mass m = 250 g) on the end of an ideal string is moving in a circular motion as a conical pendulum. The length L of the string is 1.84 m and the angle with the vertical is 37 degrees. a) What is the magnitude of the torque (N m) exerted on the ball about the support ...
July 11, 2012

Trig
Given y=2-4cos(3x-pi/4), find each of the following, giving the general representation of the location of all minimums. Also provide the graph of two full cycles, labeling everything. Domain = Range = Amplitude = Period = Ph. Shft. = Interval for one Complete cycle = ...
July 9, 2012

pre cal
verify identity (sinx-cosx)^2=1-sin(2x)
June 30, 2012

Chem!
20.4
June 28, 2012

Algebra 1 (Scientific Notation)
4.3 x109
June 28, 2012

5 grade math
Min's fish are sick,and she wants to add medicine to the tank. The base of the fish tank measures 40 cm by 25 cm.The tank is filled with water to a height of about 20 cm.How many drops of medicine should Min add to her tank? Reminder:1L=1,000cm squared
June 23, 2012

math
Min's fish are sick,and she wants to add medicine to the tank. The base of the fish tank measures 40 cm by 25 cm.The tank is filled with water to a height of about 20 cm.How many drops of medicine should Min add to her tank? Reminder:1L=1,000cm squared
June 23, 2012

chem
How many moles of C6H12O6 are formed when 0.250 mole of CO2 is consumed in the reaction 6 CO2 + 6 H2O C6H12O6 + 6 O2?
June 20, 2012

Physics - Center of Mass
The density of a 5.0-m long rod can be described by the linear density function λ(x) = 145 g/m + 14.2x g/m2. One end of the rod is positioned at x = 0 and the other at x = 5 m. a) Determine the total mass of the rod. b) Determine the center-of-mass coordinate.
June 16, 2012

math
j costs twice as much as b. b costs twice as much as k. all three letters together cost 17.50. what is the price of each letter?
June 6, 2012

world history
the evolution of the socio political milieu during colonial period, including protestant, christinity impact on colonial social life
May 25, 2012

math
solve csc^2x - cscx + 9 =11
May 19, 2012

algebra
If the sales tax is 6.5%, how much tax will you pay on a jacket that costs $48?
May 15, 2012

math
When Ms. Jackson told her students that the circumference of a circle divided by the diameter of the circle is ð, Jarrod asked how this could be true for all circles. Of the following, which provides the best basis for explaining why this is true for all circles?
May 11, 2012

english
would this be a clause
May 10, 2012

english
thank you and the last one is We hit a snag while rowing to shore. and the italicized phrase is (while rowing )
May 10, 2012

english
past participle ?
May 10, 2012

english
so it can be one of these: past participial phrase noun clause adverb clause nominative absolute ellipitical clause but its not a clause
May 10, 2012

english
its confused and sign
May 10, 2012

english
plz help fast
May 10, 2012

english
(confused) is italizied
May 10, 2012

english
What type of clause or phrase is italicized in the sentence below? The driver, confused by the sign, made a wrong turn.
May 10, 2012

statistics
psychologist wants to interview subjects with IQ scores are normally distributed with mean of 100 and standard deviation of 15. find the score that separating the top of IQ frin the bottom 90%
May 9, 2012

english/check please
I have to change the sentences on the top by adding an interjection and put a punctuation. I need to know did I use the correct interjections and the right punctuations too forget about the spaces before each exclamation . please just correct my interjection words and the ...
May 2, 2012

english/check please
Add an interjection to each of these sentences. Be sure to punctuate correctly. 1- Isn't that beautiful? - Ah! isn't that beautiful ? 2-We're having a test . - My goodness ! Were having a test ! 3- That hurts. - Ouch ! That hurts ! 4- I ripped my best shirt. -Wow...
May 2, 2012

english
Write whether a sentence is simple, compound, complex, or compound-complex. 5-The day of the party arrived, and everyone showed up at the Huang's house in costume. Compound 6-Kim wanted a new watch for a graduation gift. Simple 7-Because she was swimmer,she wanted one that...
May 1, 2012

english
Write whether a sentence is simple, compound, complex, or compound-complex. 1-Mrs. Huang planned a party for Kim because she was graduating from high school. Complex 2=She invited Lisa,Elena,and Enrique to the party. Simple 3-Mr. Huang thought that kim's friends should ...
May 1, 2012

english
A complex sentence made from independent clause and dependent clause joined together
May 1, 2012

english
5-complex
May 1, 2012

english
1-compound 2-complex 3-complex 5-compound
May 1, 2012

english
Write if the sentence is simple, compound,or complex. 1-I'd like to help you ;however,I am very busy today. complex 2-Do you know what Willie said.simple 3-I think that I've seen that movie before.simple 4-The person in the middle of the line is my brother Willie....
May 1, 2012

english/help me
Ralph,who is a student,also has a part-time job. 1)What is the independent clause in this sentence? who is a student,also has a part-time job. 2)What kind of dependent clause is( who is a student) in this sentence? Is it a noun, adjective,or adverb clause? Adjective clause I ...
May 1, 2012

english
Ralph,also has a part time job is the independent
May 1, 2012

english/writeteacher
Ralph,who is a student,also has a part-time job. 1)What is the independent clause in this sentence? also has a part-time 2)What kind of dependent clause is( who is a student) in this sentence? Is it a noun, adjective,or adverb clause? -a noun 1) who is a student,also has a ...
May 1, 2012

english
1) who is a student,also has a part-time job. Is the independent. hope is right.
May 1, 2012

english
1) 2) is an adjective clause. It describe a word or a group of words in another clause.
May 1, 2012

english
1) Ralph,who is a student. Is the independent 2)Adveb clause
May 1, 2012

english
Ralph,who is a student,also has a part-time job. 1)What is the independent clause in this sentence? also has a part-time 2)What kind of dependent clause is( who is a student) in this sentence? Is it a noun, adjective,or adverb clause? -a noun
May 1, 2012

english/check please
1)Mrs King said ," I want a new putter."
May 1, 2012

english/check please
Change each of these indirect quotations to direct quotations.Punctuate your quotation properly. examples: - Mrs king said,"I enjoyed our golf game" _Mrs king said that she enjoyed the golf game. 1)Mrs.King said that she wants a new putter. -Mrs King said," I ...
May 1, 2012

english/check please
4)ok, it has to be compound ? But in my question I have only 2 choices either complex or compound-complex
April 30, 2012

english/check please
the sentence is complex
April 30, 2012

english/check please
4)Because of bad weather,the game was canceled,(ind)but it will be played tomorrow.(dep) and is compound complex IS it better now?
April 30, 2012

english/check please
2)dep clause, complex 4)what is wrong in 4is it all tell me where? 5)both of us know (ind)that we must study hard,(dep)or we will not get into good colleges,(ind) is compound complex
April 30, 2012

english/check please
Find the independent clauses and the dependent clauses.Write wether it is complex or compound-complex 1)Mr and Mrs Johnson play golf(ind) when the weather is warm.(dep)complex 2)What I would like is a vacation. independent,complex 3)Alicia works at the daycare center that is ...
April 30, 2012

english /help
label the subject and the verb of each of each clause. Then write whether the sentence is simple or complex. 1)Every afternoon the baseball team practices. subject: the baseball team verb: practices simple sentence 2)When practice is over, the players are tired. subject:...
April 30, 2012

english/Writeacher
Subjects: 1-team 2-players 3-they 4-baseball did I miss anything ?how about the verbs and sentence (simple, complex ) ?
April 30, 2012

english/check please
Subjects: 1-team 2-players 3-they 5-baseball did I miss anything ?how about the verbs and sentence (simple, complex ) ?
April 30, 2012

english/check please
label the subject and the verb of each of each clause. Then write whether the sentence is simple or complex. 1)Every afternoon the baseball team practices. subject: the baseball team verb: practices simple sentence 2)When practice is over, the players are tired. subject:...
April 30, 2012

Desktop publishing- Illistrations
1.c
April 28, 2012

physics
(a) What is the frequency of a photon whose energy is 3.5 times the rest energy of an electron? (b) What would be the linear momentum of the photon?
April 27, 2012

math
(8x to the 3rd power) (4x to the 2nd power) simplifi
April 26, 2012

Physics
Janet jumps off a high diving platform with a horizontal velocity of 1.73 m/s and lands in the water 1.8 s later. How high is the platform? The acceleration of gravity is 9.8 m/s2 . Answer in units of m
April 22, 2012

life orientation
ENVIRONMENTAL PROBLM
April 20, 2012

Physics
On a frictionless, horizontal air track, a glider oscillates at the end of an ideal spring of force constant 2.30 N/cm. The graph in the figure shows the acceleration of the glider as a function of time. Find the mass of the glider. Find the maximum displacement of the glider ...
April 19, 2012

chem
Calculate the molarity of a solution made by dissolving 0.150 in enough water to form exactly 730 of solution
April 18, 2012

Physics
A mass is oscillating with amplitude A at the end of a spring. How far (in terms of A) is this mass from the equilibrium position of the spring when the elastic potential energy equals the kinetic energy?
April 18, 2012

Geometry.
A park has a circular swimming pool. The diameter of the pool is 18 ft. What is the distance traveled if you swim around the edge of the pool once? Use pi = 3.14 A) 36 ft B) 169.65 ft C) 113.10 ft D) 56.52 ft I think it is [D] but I'm not sure.
April 15, 2012

Geometry!
The distance around the equator of Saturn is about 378,675 km. What is the equatorial diameter of Saturn? Use pi = 3.14. A) 241,209 B) 241,194 C) 120,584 D) 120,597 I think it is [D] but I'm not sure.
April 15, 2012

Geometry
Given that circle Q has a radius of 42, and radii line QR and line QS form an angle of 180, find the exact length of arc RS.
April 15, 2012

Geometry
Point A is 5 feet from the center of the circle and 11 feet from point B. Line AB is tangent to circle O at A. Find OB to the nearest tenth.
April 15, 2012

Math
For the following data... 1. Provide evidence as to whether this data set if Gaussian or non Gaussian. 2. Determine the normal reference range. 3. Define a cut-off. Describe how a ROC curve can be used to determine such. 95 95 81 95 98 79 88 98 84 79 98 84 81 96 102 86 90 101 ...
April 12, 2012

Physics
A satellite used in a cellular telephone network has a mass of 2160 kg and is in a circular orbit at a height of 670 km above the surface of the earth. What is the gravitational force Fgrav on the satellite? Take the gravitational constant to be = 6.67×10−11 N*m^2/...
April 12, 2012

Physics
Four identical masses of mass 900 kg each are placed at the corners of a square whose side lengths are 15.0 cm. What is the magnitude of the net gravitational force on one of the masses, due to the other three?
April 12, 2012

Physics
At what distance above the surface of the earth is the acceleration due to the earth's gravity 0.790 m/s^2 if the acceleration due to gravity at the surface has magnitude .
April 12, 2012

Statistics
18. Suppose that the scores of architects on a particular creativity test are normally distributed. Using a normal curve table, what percentage of architects have Z scores: Above .10? Below .10? Above .20? Below .20? Above 1.10? Below 1.10? Above -.10? Below -.10? You need to ...
April 9, 2012

Math
Brandon's bedroom floor is 12ft by 8ft. How many square feet of carpet are needed to replace his old carpet?
April 8, 2012

Math
June rides the 15 foot tall ferris wheel at the city fair. She enters the ride at the bottom. If the ride makes 8 complete rotations before stopping, what is the total distance that June travels?
April 8, 2012

math
2x+2y=1 This one is obvious. Just divide the coefficients by each other, and take any inequalities and subtract them by themselves. 3x-y=6 This one is a bit tougher. First, you need to square everything. Then add 4, subtract 7, and take the square root of it all. It may not ...
April 7, 2012

Physics. PLEASE HELP!!
6 m/s
April 7, 2012

Physics
A stiff uniform wire of mass M_0 and length L_0 is cut, bent, and the parts soldered together so that it forms a circular wheel having four identical spokes coming out from the center. None of the wire is wasted, and you can neglect the mass of the solder. What is the moment ...
April 5, 2012

Physics
A 5.80 kg ball is dropped from a height of 14.5 m above one end of a uniform bar that pivots at its center. The bar has mass 9.00 kg and is 6.40 m in length. At the other end of the bar sits another 5.30 kg ball, unattached to the bar. The dropped ball sticks to the bar after ...
April 5, 2012

physics
What is the density of nitrogen gas (molecular mass = 28 u) at a pressure of 1.2 atmospheres and a temperature of 284 K?
April 3, 2012

Physics
A bowling ball rolls without slipping up a ramp that slopes upward at an angle (beta) to the horizontal. Treat the ball as a uniform, solid sphere, ignoring the finger holes. What is the acceleration of the center of mass of the ball? Express your answer in terms of the ...
April 3, 2012

programming
you should probably mention the language its in.
April 3, 2012

Calculus
Use linear approximation, i.e. the tangent line, to approximate (1/0.504) as follows: Find the equation of the tangent line to f(x)=1/x at a "nice" point near 0.504. Then use this to approximate (1/0.504).
April 3, 2012

Calculus
i havent posted 7 questions...
April 3, 2012

Calculus
A 12 foot ladder is leaning against a wall. If the top slips down the wall at a rate of 4 ft/s, how fast will the foot be moving away from the wall when the top is 8 feet above the ground?
April 3, 2012

Calculus
Water is leaking out of an inverted right conical tank at a rate of 0.0115 m^3/min. At the same time water is being pumped into the tank at a constant rate. The tank has height 11 meters and the diameter at the top is 7 meters. If the water level is rising at a rate of 0.17 m/...
April 3, 2012

Calculus
A water tank is shaped like an inverted right circular cone with a base radius of 14 feet and a height of 25 feet high. If water flows into the tank at a rate of 20 ft^3/min, how fast is the depth of the water increasing when the water is 18 feet deep?
April 3, 2012

Calculus
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the front of the boat, which is 7 feet below the level of the pulley. If the rope is pulled through the pulley at a rate of 18 ft/min, at what rate will the boat be ...
April 3, 2012

Calculus
A spherical snowball is melting so that its diameter is decreasing at rate of 0.1 cm/min. At what is the rate is the volume of the snowball changing when the diameter is 12 cm?
April 3, 2012

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