Thursday

July 30, 2015

July 30, 2015

Total # Posts: 687

**chemistry**

How many milliliters of a stock solution of 5.40 M HNO_3 would you have to use to prepare 0.150 L of 0.510 M HNO_3?
*September 27, 2011*

**physics**

Two boxes sit side-by-side on a smooth horizontal surface. The lighter box has a mass of 5.18 kg, the heavier box has a mass of 7.51 kg. (a) Find the contact force between these boxes when a horizontal force of 3.9 N is applied to the light box.
*September 26, 2011*

**US history**

Frank Steelman Office: Phone or Course Chat Office Hours: By appointment - as needed by the student. Phone: 609-204-0359
*September 25, 2011*

**Programming Logic**

Programmign Logic for business Modify the PROCESS routine in Section 5.4 to determine whether the student is full time or part time before checking whether he or she lives in district or out of district. Use a flowchart and pseudocode to show your solution. Here
*September 19, 2011*

**INFORMATION SCIENCE**

Modify the PROCESS routine in Section 5.4 to determine whether the student is full time or part time before checking whether he or she lives in district or out of district. Use a flowchart and pseudocode to show your solution. Here
*September 19, 2011*

**Chemistry**

Consider the following unbalanced reaction. P4(s) + F2(g)---> PF3(g) How many grams of F2 are needed to produce 114 g of PF3 if the reaction has a 80.3% yield? I've worked it every way I can think, and the online grader says I am wrong. Someone plz lend me a hand.
*September 13, 2011*

**physics**

A fishtank with inside dimensions of 30.5 cm X 61 cm X 30.5 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms? The fishtank above measures 1 ft X 2 ft X 1 ft in English ...
*September 12, 2011*

**physics**

A fishtank with inside dimensions of 30.5 cm X 61 cm X 30.5 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?
*September 12, 2011*

**chemistry**

How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate solution?
*September 8, 2011*

**biology**

How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate solution?
*September 8, 2011*

**physics**

A rock is dropped from a 154-m-high cliff. How long does it take to fall (a) the first 77.0 m and (b) the second 77.0 m?
*September 7, 2011*

**physics**

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed for this trip. Then ...
*September 1, 2011*

**Henry3**

What is it?
*September 1, 2011*

**Henry3**

Suppose someone invents a new unit of length called a zizzle. If 3.5 zizzles = 1 meter, what is 11.9 zizzles/s in km/hour?
*September 1, 2011*

**physics**

Which of the following equations is dimensionally consistent? A. a3 = 1.2 (v/t)3 + 0.2 x3/t6 + 1.5 v4/x3 B. a3 = 1.2 (v/t)3 + 0.2 x2/t6 +3 v6/x3 C. a3 = 1.2 (v/t)3 + 0.2 x3/t6 - 1.5 v6/x3 D. a3 = 1.5 (v/t)2 + 0.2 x3/t6 - 1.5 v6/x3
*September 1, 2011*

**Chemistry**

Frank Steelman Office: Phone or Course Chat Office Hours: By appointment - as needed by the student. Phone: 609-204-0359
*August 31, 2011*

**early childhood education **

1. Small group discussions with preschools enables them to: A. Find out if they are superior B. Learn to argue C. Outsmart the others and gain teachers attention D. Compare their ideas with peer ideas I choose D 2. Children with many experience with stories: A. Can accurately ...
*August 16, 2011*

**Math**

A conical tank (with its vertex down) is 8 feet tall and 6 feet across its diameter. If water is flowing into the tank at the rate of 2 feet3/min, find the rate at which the water level is rising at the instant when the water depth is 2.5 feet.
*July 31, 2011*

**calculus**

A right circular cylinder is to be designed to hold 750 cm3 of processed milk, and to use a minimal amount of material in its construction. Find the dimensions for the container.
*July 30, 2011*

**calculus**

6. A right circular cylinder is to be designed to hold 750 cm3 of processed milk, and to use a minimal amount of material in its construction. Find the dimensions for the container.
*July 30, 2011*

**calculus**

7. A cardboard box manufacturer wishes to make open boxes from rectangular pieces of cardboard with dimensions 40 cm by 60 cm by cutting equal squares from the four corners and turning up the sides. Find the length of the side of the cut-out square so that the box has the ...
*July 30, 2011*

**Behavioral Science**

what is the most divisive issue that is fueling the controversy over Affirmative Action
*July 13, 2011*

**Civics**

You should not put it that way because the current method is in-hu-main. Just one type and that is used at animal clinics.
*July 6, 2011*

**Operations Management**

Joe Henry's machine shop uses 2,500 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. the following information is known about the brackets. annual demand 2,500 holding cost per bracket per year $1.50 order cost per order $18...
*July 6, 2011*

**Calculus 2**

A cone is filled w/ freshwater (w=62.4 lb/ft^3). Determine the total force on the inside of the cone. Height of 10 and base of 12.
*June 29, 2011*

**math**

2 5/8 * 24 * 6 2/3
*June 27, 2011*

**alg II**

how do you solve this equation 2 cos pi x = 4x + 5
*June 16, 2011*

**math**

it is the cost of the item.
*June 7, 2011*

**math**

what is a 40% mark up on an item that costs-$38.00?
*June 7, 2011*

**Little River **

Jack and Jill invented a Trivia game in which a player can score 0,6 or 11 points on each turn.each player must take at least one turn.write an equation for a total score of 45 points in the game.
*May 22, 2011*

**chemistry**

A galvanic cell has an iron electrode in contact with 0.20 M FeSO4 and a copper electrode in contact with a CuSO4 solution. If the measured cell potential at 25 degrees Celcius is 0.61 V , what is the concentration of Cu2+ in the CuSO4 solution?
*May 17, 2011*

**physics ( help)**

First of all your initial vertical velocity is not 4.5 m/s. it is Viy= 4.5 * sin(30) and your horizontal = 4.5 * cos(30)
*April 25, 2011*

**Algebra**

sqrt(55) -sqrt(1/55)+sqrt(5/11)=?
*April 10, 2011*

**English**

Not sure that you need that dash in "already-significant" In the end, change "help" to "helping." Better yet, you could say "I'm looking forward to contributing to the success of your company."
*April 10, 2011*

**Algebra**

sqrt(55)-sqrt(1/55)+sqrt(5/11)=?
*April 10, 2011*

**Algebra**

I am racking my brain trying to figure out how to work this: the square root of 55 minus the square root of one over 55 plus the square root of 5 over 11. Do I use conjugates? Ahhhh!
*April 10, 2011*

**geo 2**

if ABCD is a square and DB is equal to 12 cm, then AC is equal to 6 cm.
*March 31, 2011*

**math**

simplify 9-(6+4v) & 7(p-10)-7
*March 22, 2011*

**econ**

A bumper crop of farm products causes: 1) only a slight decline in the price of farm products because the demand for farm products is income inelastic. 2) a large decline in the price of farm products because the demand for farm products is price inelastic. 3) only a slight ...
*March 13, 2011*

**math**

Find the set that describes the intersection of each pair of sets: a. C={people who are more than 20 years old}. D={people who are enrolled in college}. b. A={4,6,8}, B={2,4}. c. E={the odd whole numbers}, F={the even whole numbers greater than 40}.
*March 3, 2011*

**Chemistry**

I need to duplicate the strength of lye made from wood ash dissolved in water (Potassium Hydroxide) to that of lye made from Sodium Hydroxide disolved in water. The soap recipes I use require lye of various strengths as determined by fluid volume of water combined with the ...
*February 28, 2011*

**Chem**

I need to duplicate the strength of lye made from wood ash dissolved in water (Potassium Hydroxide) to that of lye made from Sodium Hydroxide disolved in water. The soap recipes I use require lye of various strengths as determined by fluid volume of water combined with the ...
*February 28, 2011*

**Chem**

I know how to make soap, using lye. I want to be able to make the lye solution from wood ash be the same ph as commercial lye. I think this can be done using the ph of sodium hydroxide in water as I first stated. Is it possible to compute this ph.
*February 28, 2011*

**Chem**

What is the PH range between 58 grams and 87 grams of Sodium Hydroxide in 6 oz by volume of water. What is the PH range of that amount of Sodium Hydroxide in 8 oz of water. I need this information to learn to make soap using wood ash.
*February 28, 2011*

**AP Physics**

The initial kinetic energy imparted to a 0.72 kg bullet is 1777 J.The acceleration of gravity is 9.81 m/s2. Neglecting air resistance, find the range of this projectile when it is fired at an angle such that the range equals the maximum height attained. Answer in units of km.
*February 26, 2011*

**Ma**

Autoparts Inc. produces three types of parts' assemblies: (P,Q,R)and they each require (2,5,3) units of work on machine I and (2,2,4) units of work on machine II respectively. The two machines have respectively (160,190) units of work available per day. It is given that ...
*February 26, 2011*

**AP Physics**

27. a)In the 1950’s, an experimental train that had a mass of 32800 kg was powered across a level track by a jet engine that produced a thrust of 4.37× 10^5 N for a distance of 465 m.Find the work done on the train. Answer in units of J. b)Find the change in kinetic...
*February 26, 2011*

**AP Physics**

22. a)You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20000 N on a cannon ball while the ball is in the barrel of the cannon. The length of the cannon barrel is 2.19 m and the cannon is aimed at a 32 angle from the ...
*February 26, 2011*

**AP Physics**

A student weighing 700 N climbs at constant speed to the top of an 8 m vertical rope in 10 s. The average power expended by the student to overcome gravity is most nearly 1. P = 560 W. 2. P = 87.5 W. 3. P = 5, 600 W. 4. P = 1.1 W. 5. P = 875 W.
*February 26, 2011*

**AP Physics**

15. A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0 with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s2. If the coefficient of kinetic friction between the block and...
*February 26, 2011*

**AP Physics**

6. a)A 1260 kg car accelerates uniformly from rest to 4.65 m/s in 2.6 s. Find the work done on the car in this time.Answer in units of J. b)Find the average power delivered by the engine in the first 1.768 s. Answer in units of W. c)Find the instantaneous power delivered by ...
*February 26, 2011*

**ap Physics**

1. a)A 15.6 kg block is dragged over a rough, horizontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234.Find the work done by the 72.2 N force.The ...
*February 26, 2011*

**Economics**

Rank in order from best to worst, the economic systems(command, market and mixed) according to which, in theory, best attempts to meet the conditions of The Human Development Index. Why did you rank them this way. I am thinking (in theory): 1-command 2-mixed 3-market The The ...
*February 14, 2011*

**Economics**

I have to fill in the following for a fascist economy. Ownership of resources = private Philosophers= Karl Marx (are there more?) Role of government= to controls production and allocation of resources Reaction to social and technological Change= don't know Role of nature= ...
*February 10, 2011*

**word problem**

a computer company gives a discount of 10% on a new piece of software.If it makes a 40% profit what percentage does the marked price exceed the cost price
*February 5, 2011*

**8th grade History**

Around the town of Gettysburg, Pennsylvania...
*February 3, 2011*

**Economics**

I am given four pictures and I am asked to determine which are needs and which are wants. They are: -An airplane -A plate of breakfast(eggs, toast, beacon) -A child's bed -A sports car I think: airplane= want plate of breakfast= need Child's bed= need sports car = want...
*February 3, 2011*

**Chem II**

For the reaction H2+I2, Kc=55.3 at 700K. In a 2. L flask containing an equilibrium mixture of three gases, there are .056g H2 and 4.36 g I2. What is the mass of the I2 in the flask?
*January 31, 2011*

**Chemistry**

Lead(II) nitrate solution reacts with potassium iodide solution to produce lead(II) iodide and potassium nitrate. The answer in the book is: Pb(NO3)2(aq) + 2 KI(aq) ---> 2KNO3(aq) + PbI2(s) I understand how to write and balance the equation. However, I am confused about how...
*January 28, 2011*

**math**

A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective? Did not understand the posted answer before, need it simplified.
*January 26, 2011*

**math**

did not understand your answer?
*January 26, 2011*

**math**

A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective?
*January 26, 2011*

**math (trig)**

if cos 2 theta = -(1/3) and theta is in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta
*January 20, 2011*

**trig**

If sin 2 theta = (2/5) in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta.
*January 20, 2011*

**math 65**

how do i change a fraction to a decimal
*January 18, 2011*

**Math**

Sorry, whenever I post, the pattern does not come out right. There should be one "I" diagonally down and to the right and one to the left of B. Same pattern with all the other letters. Thanks
*January 10, 2011*

**Math**

How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or right)? ...B ..I I .N N N O O O O .M M M ..I I ...A L L My Answer: Starting from B using Pascal's Triangle ...B ..1 1 .1 2 1 1 3 3 1 .4 6 4 .10 10...
*January 10, 2011*

**Math**

How many different paths will spell the word BINOMIAL in the following arrangement(moving diagonally downwards to the left or right)? B I I N N N O O O O M M M I I A L L My Answer: Starting from B using Pascal's Triangle B 1 1 1 2 1 1 3 3 1 4 6 4 10 10 20 20 20 There are ...
*January 9, 2011*

**math**

4 2/5 - 2 1/2 = P + 3/10
*January 9, 2011*

**algebra**

for a person 6 feet tall who weighs 200 pounds, find the value for k in the equation w = kh to the 3rd power
*January 5, 2011*

**math**

Latoya has 3/4 of a bag of popcorn. If she eats half of the popcorn at a movie , how much does she have left?
*January 3, 2011*

**math**

Rupert flew 3/16 of the way around the world, but George only flew 4/9 as far as Rupert how far around the world did George fly?
*January 3, 2011*

**AP Calculus**

A particle is moving around the unit circle (the circle of radius 1 centered at the origin). At the point (.6, .8) the particle has horizontal velocity dx/dt=3. what is its vertical velocity dy/dt at that point? a)-3.875 b0-3.75 c)-2.25 d03.75 e)3.875
*December 15, 2010*

**math**

Determine the domain and range of the function. 4-X^2 if x<0 f(x)= 4-2X if x≤x≤2 sqrt(x-2) If x>2
*December 7, 2010*

**spanish**

I have a question about this phrase translated to Spanish. "Well, yes. I enjoy studying Spanish very much." Is it this way? Pues si, yo estudio espanol mucho. or Pues si, yo estudiar espanol mucho. using the infinitive form of estudiar. Thank you.
*November 30, 2010*

**chemistry**

How many molecules are 100.00 grams of H2O?
*November 29, 2010*

**chemistry**

What is the mass of 5.00 moles of Pb(CH3COO)2?
*November 29, 2010*

**physics**

a 600 kg hammer of pile driver is lifted 2 meters above a piling head. what is the change in potential energy if the hammer is released, what will its speed at the instant it strikes the piling?
*November 26, 2010*

**Math**

Fine the size of the following matrix and its additive inverse matrix. Identify if it is a square, column, or row matrix: [ 2 -3 7 1 0 4 ]
*November 25, 2010*

**math**

I think you would need one of the variables because all that is telling me is 180 = 1/2bh . Are there any other variables listed?
*November 17, 2010*

**math**

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The forumlua for ...
*November 17, 2010*

**Trig**

Simplify: (cosx + cos2x + cos3x + cos4x + cos5x + cos6x) / (sinx + sin2x + sin3x + sin4x + sin5x + sin6x) into a single Cotangent function. Using the sum-to-products, I was able to get remove some of the addition in attempts to get full multiplication, but I could not get the ...
*November 16, 2010*

**math**

Find the maximum area of a rectangle inscribed between the x-axis and f(x)=-x^4+3
*November 15, 2010*

**Math**

Find the periodic payment that will amount to the given sum under the given conditions: S=$150,000; interest is 6% compounded semiannually; payments are made at the end of each semiannual period for 11 years.
*November 7, 2010*

**math**

how would 3 neighbors divide a sharing a rectangle piece of land divide it into 24 equal pieces and what fraction of land would each get
*November 4, 2010*

**chemistry**

how many moles of sodium ions are present in 3.50 L of 0.400 M Na3PO4?
*October 25, 2010*

**math**

This pattern represents the SQUARE NUMBERS: 1,4,9,16,25,36...draw a picture or diagram to explain SQUARE NUMBERS.
*October 25, 2010*

**science**

How often do you water basil?
*October 23, 2010*

**spanish**

Help with spanish!!!! Have to put correct words in the banks. 2 of them will not be used.? Querida Beth: 1) (blank) esta todo bien y esperamos que 2) (blank) tambien lo este. 3) (blank) lo pensemos y lo conversemos, tu padre y yo no estamos contentos con tu viaje. 4) (blank) ...
*October 18, 2010*

**Chemistry**

When titrating an acid with a base, a dilute solution of the base is used. When titrating a base with an acid, a dilute solution of acid is used. Why are these titrations done with dilute solutions?
*October 6, 2010*

**Chemistry**

What volume of 0.5 N nitric acid would be required to completely neutralize 300 ml of 1.0 N sodium hydroxide?
*October 6, 2010*

**Chemistry**

If you had one gallon of concentrated hydrochloric acid (12 N) and added water to make dilute hydrochloric acid (6 N), how much dilute hydrochloric acid would you have?
*October 6, 2010*

**physics**

thank you !
*October 5, 2010*

**chem**

In the explosion of a hydrogen-filled balloon, 0.54 g of hydrogen reacted with 6.6 g of oxygen to form how many grams of water vapor?
*October 4, 2010*

**marketing**

Your team has been hired by ABC company’s senior management to conduct a research project. The company has 40 employees and has been in business for 25 years. The company offers sales & service on all sizes of new Xerox copiers. The company has been faced with decreasing ...
*October 3, 2010*

**chemistry**

Calculate the volume of 1.80 M \rm Na_3PO_4 in milliliters that contains 6.00 g of solute.
*October 3, 2010*

**math figuire**

Volts divided by the amount of resistance will give you the amps.
*September 27, 2010*

**Biochem**

The conc is 6.0M HCL
*September 13, 2010*

**Physics**

Two motorcycles are traveling due east with different velocities. However, 2.16 seconds later, they have the same velocity. During this 2.16-second interval, motorcycle A has an average acceleration of 1.30 m/s2 due east, while motorcycle B has an average acceleration of 19.4 ...
*September 13, 2010*