Tuesday

June 28, 2016
Number of results: 24,993

**chemistry**

Procedure: 1. Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in the solution. 2. Place copper (II) nitrate solution into the porous cup and connect a copper electrode so that it is partially submerged in the ...
*April 15, 2008 by Sarah*

**chemistry**

Procedure: Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in the solution. Place copper (II) nitrate solution into the porous cup and connect a copper electrode so that it is partially submerged in the solution. ...
*April 15, 2008 by Sarah*

**Social studies**

12. The American Revolution most likely encouraged the Mexican people to revolt against Spain by. A. exposing Spain’s lack of resources. B. introducing new political principles to Mexico. C. inspiring the French Revolution. D. showing that a colonial revolution could succeed.(...
*February 1, 2016 by LOVE*

**Broadcast/english**

Would someone please proofread my broadcast news story.. I'd appreciate feedback. Thanks in advance A University student ran into her professor at school the same day she pretended to be sick. Naomi Bush says because she did not finish her project last week when it was due—so...
*February 6, 2013 by Blaze*

**Digestive System**

Does the bile duct release bile into the small intestine? And what does bile do?
*April 5, 2010 by Lena*

**Computer Tech**

Name 2 things that a computer virus might do if it gets into your computer.
*February 28, 2012 by Sudör*

**Statistics**

A survey of community banks asked about the loan to deposit ratio (LTDR) a banks total loans as a percent of its total deposits. The mean LTDR for the 110 banks in the sample is xbar = 76.7 and the standard deviation is s = 12.3. In the text a 95% confidence interval (using a ...
*February 26, 2007 by Jason L*

**chem**

i need to convert the following number of atoms into grams d. 1 million atoms of Br bromine e. 3x10^23 atoms of Ne neon
*January 3, 2008 by hope*

**English**

Does anyone know of a website that translates english into the shakespearean language? I can only find websites that translate shakespeare to modern english.
*January 11, 2010 by Morgan*

**BIS 155 Data Analysis w/Spreadsheet**

How would I begin to compile data into useable data in using Excel?
*March 16, 2010 by Yolanda*

**2nd grade**

i am a number between 20 and 30, when you put me into 6 equal groups, there is an even number in each group and 1 is left over, what number am I.
*April 5, 2010 by Janae*

**geometry**

Line e bisects line xy at m and divides line xy into two equal parts. name a pair of congruent segments.
*August 24, 2011 by j*

**math**

When 6 gallons of gasoline are put into a car's tank the indicator goes from 1/4 of a tank to 5/8. What is the total capacity of the gas tank?
*August 28, 2012 by Myra*

**general science**

if an object is thrown 60 m into the air and it takes the object 6 s to get there, what's the average speed of the object? (A) 20m/s (B) 360 m/s (C) 100 m/s (D) 10 m/s
*May 5, 2014 by christina*

**Math**

A pitcher contains 2/3 of lemonade. If an equal amount of lemonade is poured into 6 glasses, how much lemonade will each glass contain?
*September 21, 2014 by Marsha*

**Geometry**

Question: If a ray divides an angle into two supplementary angles, then the original angle is a straight angle. True?
*August 20, 2015 by Robert*

**algebra**

ranslate into a variable expression. Then simplify. (Use x to represent the number.) a number decreased by the total of the number and eighteen
*May 3, 2016 by Phuong*

**Biology Photo efficency**

How do you calculate the photosynthetic efficiency ..the % of solar energy reaching vegetation in an ecosystem that is converted to GPP ??? I know the amount of sol energy, GPP, NPP etc... is it the GPP divided by the energy reaching the amount of solar energy perhaps ??? ...
*January 11, 2007 by Snail*

**Chemistry(Please check answers)**

1)What is the pH of a saturated solution of lead(II) hydroxide? The Ksp= 4.0e-15 Pb(OH)2 4.0e-15 = (x)(2x)^2 = 4x^3 I divided by 4 and took the cube root and got 1.12e-5 but I am not sure I took the cube root correctly. -log(1.12e-5)= 4.95 14-4.95 = 9.05 The answer choices ...
*April 9, 2012 by Hannah*

**algebra**

how would i find an equation of a line that goes through points(1,6) and (3,10)?? thanks A straight line is y=mx+b Substitute the points to make two equations. 6=m(1)+b 10=m(3)+b Two equations; two unknowns, m and b. Solve for m and b, then plug back into y = mx + b. That will...
*December 22, 2006 by jasmine*

**Algebra333333!!!**

Choose the ordered pair that is a solution to the system of equations. 3x - y = 9 2x + y = 6 (3,0) (3,-18) (3,-1) (3,1) Once again add the two equations to get 5x = 15 Solve for x and substitute into either equation to find y.
*October 14, 2006 by Margie*

**Physics**

Is conservation of mechanical energy likely to hold in this situation? A soccer ball is thrown into the air. (Disregard air resistance.) Explain your reasoning. What do you think?
*December 10, 2006 by Anonymous*

**Social Studies**

These two violent, nomadic herding cultures swept out of Northern Asia to come into conflict with the Indus Valley People. What were these cultures?
*March 10, 2008 by Kerry*

**physics**

0.155 kg of water at 86.0oC is poured into an insulated cup containing 0.224 kg of ice initially at 0oC. How many kg of liquid will there be when the system reaches thermal equilibrium?
*April 23, 2008 by lizzy*

**chemistry**

What is the pH of the solution created by combining 11.50 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values for HCl and HC2H302 if you take into account that the 8.00 mL of 0.10 M Acid was first diluted...
*May 2, 2008 by Trisha*

**chemistry**

a pH meter gives a readout of 9.35 when the probe is dipped into an aqueous solution containing the strong base NaOH. What is the molarity of this solution with the respect to sodium hydroxide?
*May 7, 2008 by katie*

**sci.**

I`m so confused about osmosis right now. If you place a cell in a hypertonic solute then wouldn`t the water go into the cell since they`re trying to acheive equilibrium?
*September 23, 2008 by Lena*

**college calculus**

find a and b so that f(x)=x^2+ax+b has a local min at (6,-5) i found the derivative: f'=2x+a then i found a 0=2x+a 0=2(6)+a 0=12+a a=-12 but i can't seem to get the correct value for b. i plugged -5 into the original function, but my book says the answer is b=31. how do i get ...
*October 23, 2008 by kate*

**Chemistry**

A chunk of 0 C ice, mass 145g, is dropped into 75g of water at 62 C. The heat of the fusion of water is 335J/g. What is the result after thermal equlibrium is attained?
*April 25, 2009 by Amanda*

**Physics**

A nickel has a mass of 5 grams. If this mass could be converted completely into electrical energy, how long would it keep a 100 Watt light bulb lit?
*May 6, 2009 by Anonymous*

**Physics**

A man drops a stone into a water well on his farm. He hears the sound of the splash 3.25 s later. The acceleration of gravity is 9.8 m/s2 and the speed of sound in air is 326 m/s. How deep is the well?
*September 13, 2009 by Sandhu*

**Physics - waves**

What is the source of wave motion? I would think it would be an object such as a rock dropping in the water. How this translates into an answer, however, I'm not sure. :-)
*October 17, 2009 by Mary*

**calculus**

Air is being pumped into a spherical balloon so that its volume increases at a rate of 80cm^3/s. How fast is the surface area of the balloon increasing when its radius is 7cm?
*October 29, 2009 by Ash*

**math**

How would I find out the area and perimeter of a square that is cut into two trianlges with a hypotenuse of 6squared2 and has two 45 degrees and one 90 degree angle?
*November 16, 2009 by Carli*

**world history**

true or false if false why hindus believe that souls are born and reborn many times each time into a new body which is a process called reincarnation
*November 19, 2009 by abby*

**physics**

how large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a horizontal distance of 80 m ? I'm trying to find the formula and then plug in the correct #'s into the formula.
*February 11, 2010 by courtland*

**Math**

I am suppose to write 2/30 as a percent. My answer choices are a .o6%, b. .005% c. .6% d. .05% I thought I would divide 2 into 30 which would be .06 and then moving 2 spaces to the right equaling 6%. How do I solve this problem.
*February 11, 2010 by Kevin*

**Biology**

Divide teh Cnidarian specimen into two groups. What feature did you use to make your divison? I just need a two sentence answer not a essay.
*May 23, 2010 by Christina*

**Chemistry**

At a particular temperature, k=1.6x10^-5 for the reaction 2SO3(g)=2SO2(g)+ O2 If 4 mole of SO2 and 2 mole of O2 are placed into a 2.0 L flask, calculate the equilibrium concentration of all the species. Thanks.
*June 6, 2010 by Amphee*

**Math 117**

Give exact and approximate solutions to three decimal places. (x-8)^2=49 I need step by step example on how to solve this AND input it into a calculator. Please!
*September 19, 2010 by Sabrina*

**art**

· Summarize the distinction between art film and popular cinema in 150 to 250 words. · Provide examples of each and explain why they fall into either category.
*October 13, 2010 by stephaine *

**Chemistry**

A mixture of gases collected over water at 14C has a total pressure of 1.198 atm and occupies 72 mL. How many grams of water escaped into the vapor phase?
*October 15, 2010 by Megan*

**biology**

7. If the baking soda had not been added, would there still have been a source of carbon dioxide being introduced into the water? Explain.
*October 28, 2010 by rosalie danenberg*

**math**

A circular sector of central angle theta and 9 cm radius can be fashioned into a paper cone with volume 100 cm^3. Find all possible values of theta.
*November 3, 2010 by caroline*

**Physics**

A hammer is used to pound a piece of sot metal into a new shape. If the metal is thermally insulated from its surroundings, will its temperature change due to the pounding?
*December 28, 2010 by Katherine*

**adv pre algebra**

the temperature of a substance increases by 10 degrees celsius in 5 minutes. write this as a unit rate. then convert into degrees fahrenheit per hour.
*January 9, 2011 by Anonymous*

**Math- Geometry**

A board 20 feet long is cut into two boards with lengths in ratio of 5 to 2. To the nearest tenth of a foot, how lng is the longer piece of the board?
*January 30, 2011 by meghan*

**consumer economics**

Phonecia deposits $300 into a simple interest account that pays 3%. After 7 months what will be the total value of her account? A.$309.00 B. 305.25 C. $321.00 D. $9.00
*February 14, 2011 by megan*

**physics**

a .250kg block of aluminum is heated to 100 C and then dropped into .60 kg of water that is initially at 20C. What is the equilibrium temperature of the system? The specific heat of aluminum is .22 kcal/kg C
*February 17, 2011 by Anonymous*

**science**

When you hit a nail into a board using a hammer, the head of the nail gets warm. In terms of kietic and thermal energy, describe why you think this happens.
*January 23, 2013 by lisa*

**3rd grade math**

Sheila wrote a division story. She asked how may equal groups 24 flowers could be put into. What information must she give about the groups?
*March 14, 2011 by Amy*

**prep chem**

How many milliliters of oxygen 2(g) will be produced at 720mmHg and 17 celsius if 0.460 grams of KClO3 are reacted in the reaction? Formula is 2 KClO3 --> 2 KCl + 3 O2(g) I know to change temp into K
*April 18, 2011 by Laura*

**physics**

a body weighing 40N drops freely from a hieght of 50m and penetrates into the ground by 100cm.find the average resistance to penetration and the time of penetration.
*September 21, 2011 by impulse and momentum*

**biology**

With regard to bringing solutes into the cell across the plasma membrane, discuss the advantages and disadvantages of diffusion, facilitated diffusion,active transport,and endocytosis.
*September 22, 2011 by Anonymous*

**economics**

An accountant deposits 100 per month into an account that pays 8% per year compounded quarterly ( no interperiod compounding) How much will she have in 10 years
*October 9, 2011 by t*

**Math**

Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.
*November 5, 2011 by Ethan*

**social**

Which group of people are drugging youths in California who are hired/ paid by employers? They also trick your families/ friends into drugging you. Victims are from Bay area.
*November 5, 2011 by Ave*

**Science(egg in vinegar) PLease check my answer**

what biological model does the egg represent? stomach it shows what happens to protein iif you put it into an acid.
*November 8, 2011 by Adam*

**physics**

You step into an elevator holding a glass of water filled to a depth of 7.0 cm. After a moment, the elevator moves upward with constant acceleration, increasing its speed from 0 to 2.8 m/s in 3.8 s.
*November 23, 2011 by x*

**calculus**

1. A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. What will be the dimensions of the box with largest volume?
*December 18, 2011 by Yoona*

**math**

From the Periodic Table, 1 mole of aluminum weighs 27.0 g., Therefore; If 54.0 g of aluminum are placed into the beaker to react with copper(II) chloride, how many grams of the metal product will be produced?
*January 12, 2012 by chris*

**chemistry**

For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? a. 0.00450 s-1 b. 0.0290 s 1 c. 0.00530 s-1 d. 0.0150 s-1 e. 5.40 s-1
*February 17, 2012 by Dom*

**Chemistry**

1)For the reaction, A = B + C, the rate law is k(A). If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? I was going to do 80/10 = 8 and then 8 times .70 but im not sure this is correct.
*February 20, 2012 by Hannah*

**maths**

if a regular payment is made quarterly into sinking fund,it accrues to $18258.53 after ten years.What is the annual percentage rate paid by the fund?
*April 17, 2012 by girma*

**physics**

From a cliff that is 8.2 m above a lake, a young woman (mass 42 kg) jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wavelength?
*April 23, 2012 by Alisha*

**math**

A stone dropped into water produces a circular ripple which increases in radius at a rate of 1.50 m/s. How fast is the area increasing within the ripple when its diameter is 6.00m?
*April 26, 2012 by Anonymous*

**Healthcare**

Sentence below is passive voice. How can I turn it into active voice? After the person begins working in the organization, an evaluation process is done by human resources.
*May 7, 2012 by Archie *

**earth**

A satellite has a mass of 5.98*10^24 kg.if this satellite is t be placed into a circular orbit 300km above the earths surface,what speed,period and radial acceleration must it have
*August 13, 2012 by busi*

**Physics**

Leroy, who has a mass of 110 , is skateboarding at 9.4 when he smacks into a brick wall and comes to a dead stop in 0.2. Find his deceleration.Find the force of impact. (ouch!)
*September 12, 2012 by Jade*

**Math**

a factory has a machine which bends wire at a rate of 8 units of curvature per second. how long does it take to bend a straight wire into a circle of radius 5?
*September 24, 2012 by James*

**Chemistry**

A buffer was prepared by dissolving 22.61g of NaCLO2 into 0.100L of 4.00M aqueous HCLO2. Calculate the pH of the original Chlorous acid/chlorite ion buffer. Ka= 1.1 x 10^-2.
*December 3, 2012 by May*

**math**

if you deposits $1200 INTO A SAVING ACCOUNT that pays 1.5% annual simple interest if you don't withdrawals or deposits how much money will you save in two in a half year
*January 4, 2013 by stephika*

**Math**

Water is poured into cuboidal container at the rate of 80liter per min. If the volume of container is 144m^3,find the no. Of hours it takes to fill the reservior.
*February 5, 2013 by Simon*

**English**

If the sentence was: Ramai was so nervous that she had already dropped and ____ two dishes. What way would I write BREAK to make it fit into this sentence?
*February 23, 2013 by Kylie*

**physics**

From a cliff that is 8.9 m above a lake, a young woman (mass 44 kg) jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wavelength?
*April 11, 2013 by PLEASE AND THANK YOU*

**chemistry**

Suppose that 2.00 moles of HCl in a 1.00L glass flask slowly decomposes into H2 and Cl2. When equilibrim is reached, the concentrations of H2 and Cl2 are both 0.214M. What is the Keq?
*May 28, 2013 by Anonymous*

**Math**

A rectangular rice land is to be fenced along 4 sides and in the middle to divide it into to 2 equal areas. If 200m of fencing is available, what is the maximum area to be fenced?
*September 6, 2013 by Khelany*

**Math**

There are 648 students in 5th grade at oak elementary school. For the upcming field trip,they need to be split into groups of 25. About how many groups are needed?
*September 12, 2013 by Nazariyah*

**Chemistry **

An aerosol can is empty, except for the propellant gas which exerts a pressure of 1.20 atm at 21 °C. If the can is thrown into a fire and heated to a temperature of 565 °C, what will be the pressure inside the hot can?
*October 15, 2013 by Blake*

**physics**

Leroy, who has a mass of 100kg , is skateboarding at 8.4m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s. Find his deceleration. Find the force of impact. (ouch!)
*October 17, 2013 by cassie*

**chemistry**

A 0.411 mol sample of PCl5(g) is injected into an empty 4.65 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.kc=1.80 at 250c
*November 10, 2013 by muna*

**psychology**

what might be some of the things that you could use as test items that would tap into this general form of intelligence that would not be overly affected by cultural matters? If not, why not?
*December 11, 2013 by t*

**Physics**

an object at rest explodes into three pieces of equal mass. one moves east at 20 m/s a second moves southeast at 30 m/s what is the velocity of the third piece??
*December 17, 2013 by Rani*

**math**

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?
*January 23, 2014 by Samantha*

**math**

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?
*January 23, 2014 by Samantha*

**Geometry**

Player hits the ball at point A an angle of 45 degrees on a pool table that measures 9’ by 4.5’. How many times will the bait a side of the table before going into a pocket?
*January 26, 2014 by Jenn*

**chemistry**

if you dissolve 20mg of alcl3 into 2.0 of a 2.5 molal nacl solution (density 1.08kg/l), what would be the mass concentration (ppm(weight)) of al3+ in the resulting solution?
*January 26, 2014 by Ashley*

**chemistry**

A sample of aluminum metal containing 9.1080 x 10 to the 25 power atoms is drawn into a cylindrical wire with radius r=0.833 mm. how long must the wire be in meters?
*February 2, 2014 by tricia*

**Business Calc**

We deposit $19000 into an account earning 3% interest compounded semiannually. How many years will it take for the account to grow to $47500 ? Round to 2 decimal places.
*March 8, 2014 by Jessica*

**math**

Mrs. Grace has 10 sandwiches that are 4 inches in diameter. They can fit exactly into a different box... Need to show work in box, help, can't seem to figure this out
*April 8, 2014 by Nancy*

**Math**

Angie needs to have $15,000 at the end of 6 years. How much should she deposit weekly into an ordinary annuity if it earns 6.5% interest compounded weekly?
*April 22, 2014 by Mai*

**Math**

Kurt cut pizzas into wedges measuring 40 degrees. If each person eats one piece of the pizza, how many people could he feed with with two whole pizzas?
*April 24, 2014 by Gab*

**physics**

A subcompact car, mass 1,000 kg, runs into and sticks to an at rest, 2,200 kg SUV. If their final speed is 4.7m/s ,what was the smaller cars initial speed? a) 67 m/s b) 30m/s c) 2.2 m/s d) 15 m/s
*May 23, 2014 by katie*

**Maths **

645.7 litre of water are poured into 8 empty tanks. What is the average amount of water in each tank? Give your answer in litres, correct to 1 decimal place.
*August 20, 2014 by Leonardo*

**INTSCIENCE**

The earth can be considered a heat engine because it receives heat from the sun and converts it into mechanical energy to produce winds and evaporate water. True False
*November 24, 2014 by Casey*

**science-chemistry**

if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?
*April 18, 2015 by jasmine*

**Thermodynamics**

What is the ideal work for the separation of an equimolar mixture of methane and ethane at 175 C and 3 bar into product streams of pure gases at 35 C and 1 bar if Tsigma = 300 K?
*September 2, 2015 by Flynn*

**chem**

At 668K 1 mol each of CO and Cl2 are introduced into an evacuated 1.75 L flask. At equilibrium, the total pressure of the gaseous mixture is 32.4 atm. Calculate Kp. How to solve this ? Co+Cl2<>CoCl2
*September 19, 2015 by han*

**Child development **

Refers to breaking down complex skills into their component parts? A. Differentiation b. integration c. Motor skills d. Locomotion I am think b but am not sure if it right.
*October 2, 2015 by W*

**physical science **

If a runner's power is 400 W as she runs, how much chemical energy does she convert into other forms in 10 minutes? (You will need to rearrange the Power Equation.)
*December 15, 2015 by hollywood*