Sunday

February 14, 2016
Total # Posts: 182

**physics**

You are a blacksmith and have been working with 14.0 kg of steel. When you are finished shaping it, the steel is at a temperature of 405°C. To cool it off, you drop it into a bucket containing 3.0 kg of water at 55°C. How much of this water is converted to steam? ...
*January 25, 2016*

**physics**

You drop 454 g of solid ice at −35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, and the entire system comes into thermal equilibrium. Find the final temperature of the system.
*January 25, 2016*

**physics**

Consider Joule's experiment described in the insight below. Assume the mass m = 2.3 kg and the fluid is water with a volume of 1.75 L. What is the increase in the temperature of the water when the mass moves vertically a distance z = 1.55 m?
*January 25, 2016*

**physics**

An ice cube of volume 7.6 cm3 is initially at a temperature of -11.4°C. How much heat is required to convert this ice cube into steam?
*January 25, 2016*

**help on math **

Emily bought 3 shirts for $12.50 each and a pair of shorts for $20. She had a coupon for $3 off her purchase, before sales tax. Sales tax is 6%. How much did Emily pay for the clothes after the coupon and sales tax? A $54.50 B $57.77 C $60.50 D $64.13
*January 18, 2016*

**math help please **

Emily bought 3 shirts for $12.50 each and a pair of shorts for $20. She had a coupon for $3 off her purchase, before sales tax. Sales tax is 6%. How much did Emily pay for the clothes after the coupon and sales tax? A $54.50 B $57.77 C $60.50 D $64.13
*January 18, 2016*

**math help please **

On Monday, a jacket cost $36.95 and a shirt cost $21.42. On Friday the jacket was discounted by 20%, and the shirt was discounted by 1/3. What is the total price of the jacket and shirt on Friday, before sales tax? A $14.28 B $29.56 C $43.84 D $43.91
*January 18, 2016*

**math help please **

Joey earns $7.65 an hour at his part-time job. He received a 20% raise. How much will Joey now earn for working 40 hours? A $244.80 B $306.00 C $367.20 D $612.00
*January 18, 2016*

**math help **

A roll of fabric is 12 yards long. A salesperson cuts three pieces off the roll measuring 2 3/4 yd, 5 1/3 yd, and 1 1/5 yd. Approximately what percentage of the roll of fabric remains? A 3% B 9% C 23% D 77%
*January 18, 2016*

**Math fourth grade**

yes
*January 18, 2016*

**math help please**

it wont let me open my email can u just put the steps on here
*January 18, 2016*

**math help please**

i need to know the steps
*January 18, 2016*

**math help please**

Dolphin 1 dove 200 feet under water. Dolphin 2 dove 30% farther. After Dolphin 2 dove down, it ascended 25 1/2 feet and then descended 40 1/2 feet. How far under the water is Dolphin 2? A 295 feet B 275 feet C 245 feet D 215 feet
*January 18, 2016*

**help on math **

Dolphin 1 dove 200 feet under water. Dolphin 2 dove 30% farther. After Dolphin 2 dove down, it ascended 25 1/2 feet and then descended 40 1/2 feet. How far under the water is Dolphin 2?
*January 18, 2016*

**Geometry**

1. In an isosceles triangle that is not equilateral the angle between the congruent sides is called a ____ A> Leg B> Vertex C> Base D> Corollary <<<<<<<<THIS ONE 2. In triangle ABC, AB = CB, m<ABC = 4x-3, and m<CAB = x-3. What is m<...
*December 11, 2015*

**Geometry**

Find the coordinates of the orthocenter of the triangle with the given vertices. L (8,0) M (10,8) N (14,0)
*November 30, 2015*

**algebra**

How many degrees warmer is the average temperature -1.7 than -13.4
*November 18, 2015*

**Statistics**

Suppose you have a sample of 6 observations from a normal population. The sample variance is equal to 4. Find a 90% lower confidence interval for the variance of the population.
*July 11, 2015*

**Chemistry **

Predict the products of electrolysis in an aqueous solution of FeCl2. Please help. I don't understand how the answer is OH-, O2, H+, H2.
*April 15, 2015*

**Chemistry **

Identify the correct statement for the following reaction: Br2 (l) → Br2 (g) ΔH° = 30.9 kJ ΔS° = 93.2 J/K A) The reaction is always spontaneous. B) The reaction is never spontaneous. C) The reaction is at equilibrium; therefore, ΔG° = 0. D) The...
*April 12, 2015*

**Chemistry **

Put 10 mL of silver sulfate (Ag2SO4) in 1 gram zinc. What is the net equation?
*April 12, 2015*

**Chemistry **

For the equation: MnO2 (s) + 2 CO (g) → Mn (s) + 2 CO2 (g) Calculate ΔG at 298K if MnO2 = 0.150 mol, Mn = 0.850 mol, CO = 0.250 M and CO2 = 0.500 M in a 1.25 L flask.
*April 8, 2015*

**factorization**

Do u mean 5*5, 2*13, 3*3*3?
*February 7, 2015*

**chemistry**

You wish to prepare 100.0 mL of a 800.0 ppm w/v sodium (MW = 22.9897 g/mol) solution. How many grams of sodium dichromate dihydrate (Na2Cr2O7·2H2O, MW = 297.998 g/mol) are needed to prepare this solution?
*January 26, 2015*

**accounting**

Can a cost can be incremental but not relevant or relevant and not incremental?Provide an example of each.
*October 31, 2014*

**language arts**

From reading “The Raven and the First Men: The Beginnings of the Haida,” the reader can tell that the Haida people value family due to the actions of A.the baby toward the daughter. B.the Sky Chief toward Raven. C.Raven toward the Sky Chief. D.the daughter toward the...
*September 24, 2014*

**chem**

how much energy is required to vaporize 1.5 kg of copper?
*July 22, 2014*

**geography**

I dont know the answer but he is wrong I have this question and i used his answer and he is wrong
*October 17, 2013*

**math**

Ryan has nine 14-ounce bags of pop corn to repackage and sell at the school fair. A small bag holds 3 ounces. How many small bags can he make? 9*14=126 126/3=42 I need to know if there is a longer version to this answer or is this the only way it can be worked out?
*September 9, 2013*

**Math**

what property is being shown in ab+ bc=24 and AB =10, then 10+BC=24 symmetric addition subtraction substitution
*July 4, 2013*

**Math**

what property is being shown in ab+ bc=24 and AB =10, then 10+BC=24 symmetric addition subtraction substitution
*July 4, 2013*

**Geo**

Yeah !:)
*April 24, 2013*

**Geo**

sorry just want to make sure I am understanding it. So V= l x w x h V= 10.4 x 5 x 8 V= 416mm with three at the top of mm All of it right?
*April 24, 2013*

**Geo**

Thanks!
*April 24, 2013*

**Geo**

How do Ifind the volume for a prism cube with three known measures? Ht 8mm W 5mm length 10.4
*April 24, 2013*

**Math Geo help Ms Sue?**

I really understand thank you.
*April 24, 2013*

**Math Geo help Ms Sue?**

area
*April 24, 2013*

**Math Geo help Ms Sue?**

I have two questions about two circles. A.First circle shows half a line measuring 4mm using 3.14 for pie. I came up with an answer that is wrong.:( B.Second circle same pie but with a line all teh way across the circle measuring 18cm. I got this one wrong? Please help with ...
*April 24, 2013*

**Math Geo**

hahah never mind I got it. Estimation! So 43.3 in. is the answer. Forgot. Thanks.
*April 23, 2013*

**Math Geo Ms Sue**

Ms Sue, I understand it now , but my choice answers none are 45? I followed your steps and got the same answer as you. But your calculations are right. Choices are : 43.3 in. 136.1 in. 86.7 in. 5887.2 in So not sure why ?
*April 23, 2013*

**Math Geo**

Estimate the radius of a circle with the circumference of 272.2 inches. Help me with the steps please?
*April 23, 2013*

**Geo math**

A= 3.14 x 5 divided by 5 ? Sorry I am lost. The diameter is 10 so half is 5. Then divided by 5 square feet.
*April 23, 2013*

**Geo math**

So, A = 3.14 x 10 squared = ??
*April 23, 2013*

**Geo math**

Some flowers are being planted in a circular flower bed with a 10-foot diameter. If each flower requires 5 square feet of space, about how many flowers can be planted? What formula do I use to solve this?
*April 23, 2013*

**FINANCE**

Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s net income? b. ...
*April 5, 2013*

**FINANCE**

Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s net income? b. ...
*April 5, 2013*

**chemistry**

When magnesium burns in air, it reacts with oxygen and nitrogen, forming magnesium oxide and magnesium nitride. If 20.0L of air is available for this reaction, what mass of each compound can be formed? (Remember air is about 80% Nitrogen and 20% Oxygen)
*March 7, 2013*

**Math **

The number of gallons of water remaining in a swimming pool t minutes after the drains are opened and the pool begins emptying is give given by the function f(x)=40t^2-3000t+40,000 gallons. Between 3 and 5 minutes after the drains were opened, the pool emptied at an average ...
*February 23, 2013*

**Math**

The number of gallons of water remaining in a swimming pool t minutes after the drains are opened and the pool begins emptying is give given by the function f(x)=40t^2-3000t+40,000gallons. Exactly 2 minutes after the drains are opened, the pool was emptying at an instantaneous...
*February 23, 2013*

**Algebra**

The formula h=280t-7t^2 gives the height, h in meters, of a rocket t seconds after take off. The maximum height reached by the rocket is 2800 m. How long will it take the rocket to reach this maximum height?
*January 29, 2013*

**English**

What is the function of the characters of Miss Prism and Chasuble?
*January 22, 2013*

**science, physics**

A block of mass 0.25 kg is connected to a spring with spring constant 35 N/m. The block is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 1.04 m/s. What's the total energy of the system?
*January 8, 2013*

**math**

How do you write this problem in algebraic expression (four different people came in today; and each bought one third of a box and 13 candies)
*November 13, 2012*

**Physics**

A ball and a thin plate are made from different materials and have the same initial temperature. The ball does not fit through a hole in the plate, because the diameter of the ball is slightly larger than the diameter of the hole. However, the ball will pass through the hole ...
*November 9, 2012*

**Physics**

A thermos contains 150cm3 of coffee at 85° C. To cool the coffee, you drop two 10g ice cubes into the thermos. The ice cubes are initially at 0° C and melt completely. What is the final temperature of the coffee? Treat the coffee as if it were water. (See Table 12.2 ...
*November 9, 2012*

**Math**

23×17
*October 22, 2012*

**Math**

they are all wrong
*September 13, 2012*

**Math**

Can any body cheack my answers
*September 13, 2012*

**Math**

My answers are 1. d 2. c 3. b 4. a
*September 13, 2012*

**Math**

1. (6.0 x 10^5) x (3.0 x 10^4) = a. 18 x 10^20 b. 18 x 10^9 c. 1.8 x 10^20 d. 1.8 x 10^9 2. (5 x 10^-2) ÷ (2 x 10^3) = a. 2.5 x 10^-5 b. 2.5 x 10^-1 c. 25 x 10^1 d. 25 x 10^2 3. (2.56 x 10^6) x (3.56 x 10^2) = a. 9.1136 x 10^12 b. 91.136 x 10^8 c. 9.1136 x 10^8 d. 91....
*September 13, 2012*

**Algebra**

1. a 2. b 3. c 4. d
*September 12, 2012*

**Algebra**

1. Which of the following is greater than 4.3 x 10^9 a. 2.1 x 10^9 b. 3.2 x 10^9 c. 5.3 x 10^9 d. 7.4 x 10^8 2. Which of the following is less than 6.5 x 10^-5 a. 1.4 x 10^-3 b. 2.5 x 10^-4 c. 7.8 x 10^-5 d. 4.6 x 10^-6 3. According to the 2010 census, the population of ...
*September 12, 2012*

**math**

2. What answer represents this number in scientific notation? 0.00000916 a. 916 x 10^-8 b. 9.16 x 10^-6 c. 916 x 10^8 d. 9.16 x 10^6 3. What is this number in standard form? 6.8 x 10^-4 a. 5,750,000,000 b. 575,000,000,000 c. 0.00000000575 d. 0.575000000000 5. What is this ...
*September 10, 2012*

**math**

2. What answer represents this number in scientific notation? 0.00000916 a. 916 x 10^-8 b. 9.16 x 10^-6 c. 916 x 10^8 d. 9.16 x 10^6 3. What is this number in standard form? 6.8 x 10^-4 a. 5,750,000,000 b. 575,000,000,000 c. 0.00000000575 d. 0.575000000000 5. What is this ...
*September 10, 2012*

**Hard Math :(**

then wat is 3
*September 10, 2012*

**ACCT**

ow are intangible assets handled on a typical corporate tax return? Are they "amortized" in the same manner? If it is different, why do you think it is that way?
*September 7, 2012*

**Math**

estimate 2,115 / 72 =
*August 21, 2012*

**geography**

The country in this region that is formed by two main islands is New Zealand Australia China Micronesia
*June 18, 2012*

**geomotry**

Anita says that a Plus sign + forms 2 pairs of veritcal angles Charles says it forms 2 pairs of congruent angles who is correct? explain
*April 22, 2012*

**math**

Who knows wtf
*April 15, 2012*

**trig**

If sin A= 1/4 and sin B= -1/2, with A in QII and B in QIV, find tan(A+B)
*April 5, 2012*

**Finance (Engineering Economics)**

You wish to retire at 60 and, at the end of each month thereafter for 25 years, to receive $6,000. Assume that you begin making monthly payments into an account at age 23 and continue these payments until age 60. If the annual interest rate is constant at 12 percent, how much ...
*April 4, 2012*

**physics help!!**

A spotlight on a boat is y = 2.6 m above the water, and the light strikes the water at a point that is x = 8.1 m horizontally displaced from the spotlight. The depth of the water is 4.0 m. Determine the distance d, which locates the point where the light strikes the bottom.
*April 2, 2012*

**Chem**

Calculate the final temperature when a 16.2 gram sample of ice at 0oC is placed into a styrofoam cup containing 128 grams of water at 79.0 oC. Assume that there is no loss or gain of heat from the surroundings. Heat of fusion of ice = 333 Jg-1 Specific heat of water = 4.184 JK...
*March 23, 2012*

**bus mgt**

For this discussion use the "Critical Thinking Process" document to analyze the problem-solving the individuals may apply in the case study, "Elective Surgery Department Faces Decreased Patient Satisfaction." Share your chosen role and your role's ideas...
*March 19, 2012*

**Business**

As a growing number of producers pursue multichannel distribution, they could probably learn some lessons from the masters at the game—the big soda companies. Think of all the places in your community where you can purchase a Coke or a Pepsi. How is the soda promoted ...
*March 11, 2012*

**Business**

One of your relatives has come into a significant amount of money recently, and wants to invest $100,000 dollars in a stock which is listed either on the New York Stock Exchange (NYSE) or the NASDAQ. This relative has asked you to recommend three stocks, and will choose from ...
*March 11, 2012*

**Business**

Imagine you are the owner of a growing technology or service company with a healthy cash flow but little in the way of property and equipment. Develop a strategy for meeting your short-term financing needs to acquire needed property and equipment.
*March 11, 2012*

**Business**

Is it possible for companies both to maximize financial value for shareholders and to act responsibly in the communities in which they operate, to treat their employees, customers, and suppliers well, and to engage in activities that are good for the environment? In your ...
*March 11, 2012*

**science **

If 14.0 kilograms of Al2O3(s), 57.4 kilograms of NaOh(l), and 57.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?
*March 6, 2012*

**English Lit**

Metaphors don't use the words like or as
*January 12, 2012*

**English Lit**

Similies use the words like or as
*January 12, 2012*

**math**

julia shoots 40 baskets and makes 30 what percent did she make
*November 28, 2011*

**math**

HOW
*November 9, 2011*

**MATH **

The price of an item in a store is reduced by 50%. Then the price is reduced by another 50%. what is the total percent change as a result of the two discounts?
*October 30, 2011*

**math**

0.81 divide by 9 is what? is it.9?
*October 24, 2011*

**math**

is forty-five hundredths inches longer than 9.06?
*October 12, 2011*

**Chemistry**

How many moles of ions are released when this sample dissolves in water? 26.4 g of Ba(OH)2·8H2O
*September 23, 2011*

**Geomatry**

What is the value of the variable and BC if B is between A and C. AB=4x BC=5x AB=16
*September 13, 2011*

**BUS 323**

Thank you for this valuable information. I was able to use it and completed my first assignment without the book. Great sources.
*September 13, 2011*

**BUS 323**

I just started and it has not come in yet. I have some online notes posted in the syllabus but need to get started.
*September 13, 2011*

**BUS 323**

I need assistance in locating information on the following. I do not have the textbook. Identify reasons why a person would be interested in being ethical, and classify those reasons in terms of whether they represent moral motivation or economic motivation
*September 13, 2011*

**Criminal Justice**

I need help in identifying four International conflicts and the role of the United Nations.
*September 7, 2011*

**Criminal Justice**

I need help in identifying four International conflicts and the role of the United Nations.
*September 7, 2011*

**Psy101**

Thank you, I am off and running-
*September 7, 2011*

**PSYCHOLOGY**

Thanks so much, these sites are easier to understand than this textbook. A BIG HELP!
*September 7, 2011*

**PSYCHOLOGY**

JUST NEED HELP IN UNDERSTANDING Imagine that you are a nurse in a large hospital. You have heard that there is new doctor in the psychiatry department but you have not met him. One day, you receive a call from Dr. Smith (the new doctor) telling you that he wants you to give Ms...
*September 7, 2011*

**math**

1.6 million miles
*September 2, 2011*

**PSYCHOLOGY**

Thank you I have it figured out now. I was a bit confused from the start.
*August 30, 2011*

**PSYCHOLOGY**

Need help in understanding. Ray was assigned to barracks in a very old building with old plumbing. While showering for the first time, he heard the toilet flush and then, a few second later, was scalded when the water suddenly became much hotter. He screamed in pain. The next ...
*August 30, 2011*