Thursday

July 2, 2015

July 2, 2015

Number of results: 22,588

**Engineering Science**

A ball is thrown vertically into the air and takes 5s to return to the thrower, from time of projection. What is the time it takes to reach maximum height ?
*January 31, 2011 by Christopher*

**Physics**

A 400-g block of copper at a temperature of 85°C is dropped into 300 g of water at 33°C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?
*November 29, 2011 by Seth*

**Argument**

How do you turn this fallacy into a valid agrument:seeing that all teenagers are irrational and make poor decisions parents should make their decisions.
*January 3, 2012 by English*

**MATH**

jESS WOULD LIKE TO CUT A BOARD THAT WAS 50 INCHES LONG INTO 2 PIECES ONE OF WHICH IS 16 INCHES LONGER THATN THE OTHER. HOW LONG IS EACH PIECE.
*January 4, 2012 by raymond*

**PHYSIC**

THE MOON ORBITS THE EARTH AT A SPEED OF 1.02 KILOMETERS PER SECOND. USE DIMENSIONAL ANALYSIS TO CONVERT THIS SPEED INTO MILES PER HOUR.
*January 14, 2012 by GRISSELL*

**math**

i have 3 numbers 10,7,and 6 and need to make them work in 35...but it cant be like 7 into 35 it has to be all 3 numbers and can be used more than once but after another number like 10 + 7 +10 ect
*March 7, 2012 by becky*

**physics**

A 0.23 kg ball of dough is thrown straight up into the air with an initial velocity of 12 m/s.Find the momentum of the ball of dough halfway to its maximum height on the way up.
*March 15, 2012 by Chris*

**Physical Science**

Distinguish between longitudinal and transverse waves. Do all waves fall into one or the other of these categories? If not, give an example of one that does not?
*April 2, 2012 by Jessica*

**scientist**

Solar cells convert what type of energy into electrical energy? chemical electromagnetic nuclear thermal Can someone plaese help I believe thermal
*April 9, 2012 by kevin*

**chemistry**

1-Barium sulfate and strontium sulfide both are placed into beaker of water. a- Will the strontium sulfide dissociate? ....... - If it does,write the equation showing the dissociation.
*May 5, 2012 by Marie*

**PHYSICS**

A cylindrical metal can with a radius of 4.25 cm is floating upright in water. A rock is placed in the can, causing it to sink 0.0230 m deeper into the water. What is the weight of the rock?
*June 15, 2012 by Jennifer*

**Physics**

A cylindrical metal can with a radius of 4.25 cm is floating upright in water. A rock is placed in the can, causing it to sink 0.0234 m deeper into the water. What is the weight of the rock?
*June 17, 2012 by Jamie*

**science **

A subcompact car, mass 1,000 kg, runs into and sticks to an at-rest, 2,200 kg SUV. If their final speed is 4.7 m/s, what was the smaller car's initial speed?
*July 2, 2012 by tyreek thames*

**English **

Dividing the pie into, Felicia took the least and gave me the larger portion. Is least correct or should it be lesser? It doesn"t sound right with lesser.
*October 2, 2012 by Mark*

**ssct**

(phyics) question: calculate the final temperature of the water if 400grams of water at 80degress Celsius is poured into a 100grams pot at 30dgrees Celsius .
*December 6, 2012 by arjet*

**English**

Help! I need help unscrambling these letters into two words it is due tommorow! The letters are tttrrlnemisianaaon it is the name of a mall, remember its a two letter word
*February 26, 2013 by Alex*

**History**

Why did many progressives on either side of WW1 see America's entry into the war as an opportunity? What did the progressives accomplish during the war that they felt was positive?
*March 2, 2013 by Molly*

**4th grade math**

brian cut an extra large round pizza into 12 pieces. 7 of the pieces were eaten. what angle measure of pizza is left?
*April 16, 2013 by Jordyn*

**Physics**

A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0° above the horizontal. How long is she in the air before returning to Earth? (g = 9.81 m/s2)
*October 6, 2013 by Sarah*

**ALGEBRA**

Why is it impossible to combine the expression radical 3x + 3^ radical 3x into a single term? Explain. (I'm having a real tough time with this one, can anyone here explain this to me? Thank you!)
*November 4, 2013 by College Student*

**Science**

Alternating current going into a transformer has 200 volts. The current coming out has 20 volts. How many loops of wire might each coil have?
*February 6, 2014 by Shawn*

**Physical Science**

The current in a toaster oven is 15 A when plugged into an electrical outlet that is 110 V. How much electric power is used by the toaster oven? Formula: P = IV
*March 19, 2014 by Anonymous*

**physics**

A wire of uniform thickness with a resistance of 27 ohm is cut into three equal pieces and are joint in parallel.find the resistance of the parallel combination.
*May 1, 2014 by archit*

**physics**

A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal? c_metal =____ J*kg*C?
*May 4, 2014 by Joseph*

**English**

Can you put this sentence into completely every word in present tense and still make this sentence make sense. Humans are never satisfied
*September 12, 2014 by Anonymous*

**chemistry**

A 50g chunk of metal (c=0.0506 j/g°C) is heated to 60°C. it is then dropped into a calorimeter(c=1.40 j/g°C,m=5.0 g)that contains 100.0g of an unknown liquid. the temperature of the liquid raises from 15°C to 20°C.What is the c of the calorimeter?
*September 23, 2014 by liz*

**Science**

What is the molarity (moles per liter) of a solution in which 80 grams of sodium hydroxide, NaOH, is dissolved in 1 liter of solution? How do I convert the 80grams into mols?
*October 29, 2014 by Lilly*

**math help**

Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)
*November 21, 2014 by Ernie*

**heart**

When blood flows into the right atrium from the body, it contains.. My question/answer: I know that the oxygen is poor in the right atrium. But what about the carbon dioxide in there?
*January 20, 2015 by sciencemaster21212121*

**Science**

Which kind of pollution is illustrated by a pipe gushing polluted water into a river? A. Point source B. Nonpoint source C. Carbon source. D. Resource source
*January 28, 2015 by Ariel*

**science**

A girl drops a stone into a mine shaft 122.5m deep. How soon after she drops it does she here the sound of it striking the bottom of the shaft?
*February 16, 2015 by anu*

**Algebra**

A wire of length L is cut into two pieces of length X and Y respectively, with Y>X. These pieces are then used to form an upper case "L". If Y/X= (X+Y)/Y, determine the values of X and Y in terms of L.
*March 21, 2015 by Yin*

**physics**

A rocket of mass 5 000 kg is launched upwards into the sky at an acceleration of 20 m.s^-2. (a) Calculate the magnitude (b) calculate the direction of the thrust of the rocket's engines thanks in advance
*June 3, 2015 by kem*

**science**

A force of 16.0 newtons is sufficient to set a box that is at rest into motion. If the coefficient of static friction is 0.380, what is the normal force acting on the box?
*June 24, 2015 by kevin*

**Slope Form!!**

2x + y = 9 *You need to put it into slope form and solve for x and y!PLz help! y= -2x + 9 -2,intercept: -7
*November 5, 2006 by Natalie*

**math**

a plank of wood is cut into 12 equal pieces what fraction of the plank is 7 pieces
*October 2, 2008 by Rikki*

**science**

What kind of energy is light changed into from plants to what kind o energy in food?
*April 27, 2010 by gregg*

**PHYSICS**

does the sun exert a gravitational force on the earth? if so, why doesn't the earth fall into the sun?
*December 22, 2010 by Katie*

**MATH**

350 lbs of flour were poured into 4 3/8 lbs packages. how many packages were filled?
*March 23, 2011 by JUNIOR C*

**math**

if you have 6yds of ribbon, want to cut into 1/2 foot pieces, how many pieces can she cut?
*August 23, 2011 by charlton*

**chemistry**

A 48 g sample of water at 98.°C is poured into a 55 g sample of water at 15°C. What will be the final temperature of the mixture?
*October 20, 2011 by Anna*

**analytic geometry**

how to convert the small rotation of axes into capital rotation of axes?
*October 3, 2012 by shah*

**math help [lease?**

What strategies do you use to convert a fraction to a decimal and a decimal into a fraction?
*December 2, 2012 by moby*

**Grammar**

what prefix turns the word "town" into a word meaning "center of town"?
*February 19, 2013 by Angie*

**Math**

A pizza was cut into 6 slices. Ben ate 1/3 of the pizza. How many slices did he eat?
*February 27, 2013 by Lexi*

**Math**

A pizza was cut into 6 slices. Ben ate 1/3 of the pizza. How many slices did he eat?
*February 27, 2013 by Lexi*

**Math**

A pizza was cut into 6 slices. Ben ate 1/3 of the pizza. How many slices did he eat?
*February 28, 2013 by Lexi*

**math**

there are 5 loaves of bread each loaf will be cut into pieces of 1/4 loaf. how many pieces will we have?
*February 6, 2014 by Delia*

**Math**

write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??
*October 15, 2014 by Stephanie*

**Algebraic expression**

Translate 7 more than one-third of a number into an algebraic expression
*February 26, 2015 by Sarah*

**Nutition**

"The body absorbs lipids mostly within the small intestine. The gallbladder secrets a chemical called bile to aid in the breakdown of this fat. From there the fat is broken down farther by the enzymes the pancreas makes. The mixture of "fatty acids, partially digested ...
*August 22, 2010 by Nancy*

**DrBOB222 pertaining to the MATH question**

i got p to be 11 but i do not know how to solve the equation 6x^3 - 11x^2 - 14x + 24=0 Now, you know one root is x=2, so that is a factor. Divide x-2 into the polynomial. That will give you a binomial, which will give the other two factors.
*December 9, 2006 by KIM*

**Chemistry**

What do strong electrolytes, weak electrolytes, and nonelectrolytes have in common? Severl things, I am sure, but one that comes to mind is that all are composed of cations and anions. That may not fit into your situation, however.
*March 6, 2007 by Dave*

**Ecology**

How does the term "regulating mortality factor" leads to achieving a favorable outcome in biological control of pest in agriculture and horticulture. taking into account the holly leaf miner k-values for mortality
*March 14, 2007 by bonita*

**math**

how do I solve this problem 2x/2=(6-3y)/2? 2x/2=(6-3y)/2? I solved it for you in my initial answer. The 2 in the numerator cancels with the 2 in the denominator on th left side and x = (6-3y)/2 which is the solution of the initial equation you had for x in terms of y. You CAN ...
*March 17, 2007 by cheryl*

**Chemistry-quick question**

Can someone tell me the formula to convert -20 degrees C into Kelvins? K= C-273 WRONG BOB!! Here's the right answer kids: K = °C + 273.15 Please refrain from misleading these children.
*May 16, 2007 by Christian*

**Algebra**

x^2+2x-15/4x^2/x^2-25/2x-10 You need to use parentheses to clarify the meaning of what you wrote. You can't have a four-story fraction with three / signs x^2+2x-15 factors into (x+5)(x-3) There is also an (x+5) factor in x^2-25,and an (x-5) factor in 2x-10. That should lead to...
*July 12, 2007 by Need Help*

**What is discrete math? And is it relatively easy?**

I ask because my TA recommended taking it next semester along with calc 3. My major is electrical engineering, and I might throw actuarial science into the mix too. So yeah, lots of math.
*December 18, 2007 by Jake*

**Science**

A patients drip bag is hung a high on a stand.The liguid flows into their blood to give them food or drugs.Explain why the bag is raised up using the words water pressure and weight.
*April 12, 2008 by Lauren*

**chemistry**

What is the pH value if you take into account that the 8.00 mL of 0.10 M HCl was first diluted with 100 mL of water and titrated with 1.60 mL of the 0.10 M NaOH i know that the concentration of HCl after diluting is .008M but than im not sure how to convert that to mols which ...
*May 4, 2008 by Jason*

**MATH**

A kennel owner has 164 ft of fencing to enclose a rectangular region. He wants to subdivide it into 3 sections of equal length. If the total area of the enclosed region is 576 square ft what are the dimensions. I know that the answer is 18 ft by 32 ft or 64 ft by 9ft but not ...
*October 19, 2008 by Brittany*

**science**

suppose a cube of jell-o is cut into two pieces. What property stays the same when comparing the original piece with one of the new pieces? a. density b. mass c. volume d. surface area
*February 13, 2009 by Lorena*

**3rd grade**

My daughter needs to underline the word that has the v/v syllable pattern, then use it in a sentence..then divide the v/v word into syllables.. the first row reads laidoutfuel..some help would be greatly appreciated!
*April 22, 2009 by melissa*

**Chemistry**

Question: How many grams of AgI can be dissolved in 150.0 mL of a solution that initially contains NaCn at a concentratoin of .440 M? Would the equation be Ag(Cn)2 -> Ag+ 2CN? What numbers go into what place in the ice table. does the .440 M of CN get squared?
*May 11, 2009 by Anonymous*

**history/containment**

How did calls to “contain” communism (containment) spill into many realms of life, including debates over the “proper” role for government, labor unions, gender, ethnic and racial groups?
*May 28, 2009 by brooke*

**Physics (Astronomy)**

Hi, what keeps objects in orbit, for example, preventing the moon from crashing into the earth under the force of gravity? I have read that it speeds up as it gets closer to earth but I don't understand why. Can someone help me? Thanks.
*August 2, 2009 by Josh*

**physics**

Four identical metallic objects carry the following charges: +4.2 µC, +5.4 µC, -2.2 µC, and -4.4 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. How many electrons (or protons) make up the final charge on each ...
*September 2, 2009 by kary*

**calc**

Air resistance acting on a falling body can be taken into account by the approximate relation for the acceleration: a=dv/dt=g-kv where k is constnat Derive a formula for the velocity of the body as a function of time assuming it starts from rest (v=0 at t=0) v=?
*September 8, 2009 by Joe*

**Spanish**

Can someone help me translate these into English please? unas millas ingleseas y cuardradas de heirba lujosa and... Esta es una fiesta de divertimiento; por eso vengan y participen en el divertimiento. Gracias!
*September 28, 2009 by Larry*

**biology**

What follows is a hypothetical situation. Genes that produce chlorophyll in plants are inserted into the chromosomes of cattle. Indicate some of the possible advantages of this procedure. - I'm guessing mutation happens but I don't know what's the advantages to it and what ...
*October 22, 2009 by Cynthia*

**Biology**

We are looking at hyperaccumulating plants, and I wanted to know what happens to the heavy-matals in the plant when the plant dies. Do they go back into the soil as a contaminant, do they simply "leave" as non-toxic elements etc? If you could help me that would be great.
*November 9, 2009 by Amanda*

**Public Speaking**

where can i find a list of people or several people who perform interpersonal communication skill well. Im looking for example i can draw from to see what behaviors would be useful to incorporate into my own repertoire?
*January 23, 2010 by Bryan*

**Public Speaking**

where can i find a list of people or several people who perform interpersonal communication skill well. Im looking for example i can draw from to see what behaviors would be useful to incorporate into my own repertoire?
*January 24, 2010 by Bryan*

**biology**

a hibiscus plant was attacked by mealybugs which completely destroyed them.the mealybug was said to have thrived because it was not in its natural habitat.what is the likely effect of introducing an organism,like the mealybug,into a new habbitat?
*February 15, 2010 by Natalia*

**math**

Bruce stands on a bank beside a pond grasps the end of a 20.0 m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36.0 with the vertical what?
*October 20, 2010 by Anonymous*

**physics**

A 105-N suitcase sits on a rubber ramp at an airport carousel at a 25 degree angle . The weight vector can be broken into two perpendicular components. What is the magnitude of the component parallel to the ramp surface?
*December 2, 2010 by Anonymous*

**math **

Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 6%/year compounded monthly. If the future value of the annuity after 10 yr is $55,000, what was the size of each payment?
*February 7, 2011 by Nicole E*

**physics**

A convex mirror has a focal length of 19.0 cm. Determine the object location for which the image will be one-fourth as tall as the object. i know that 1/f=1/do=1/di. when i put the numbers into the equation i keep getting 23.75 and its saying that its wrong. can you please ...
*April 6, 2011 by julie*

**psychology**

particular factors encourage people to be drawn into liking one another. in this context the reciprocity of liking effect is primarily associted with? a.) exposure b.)propinquilty c.) similarity d.) physical attractiveness. I think its D but not 100%
*April 7, 2011 by alisha s*

**Business math**

Sam Monte deposits $21,500 into Legal Bank which pays 6 percent interest that is compounded semiannually. By using the table in the handbook, what will Sam have in his account at the end of 6 years?
*July 9, 2011 by Anonymous*

**physics**

a golfer takes two putts to get the ball into the hole once he is on the green. the first putt displaces the ball 2.7m east and the second 6.95 m south. what is the direction (in degrees S of E)? answer in units of degree
*September 11, 2011 by ana*

**Math **

Joe Diamond deposited $9,000 into the Rong Bank that pays 12 percent interest, compounded quarterly. Calculate the amount Joe will have in his account at the end of 4 years. (Using the Calculator)
*November 28, 2011 by Anonymous*

**Calc**

Find the limit as x approaches zero from the right of ((sqrt((1+x)/(x^2))-(1/x)) I don't even know where to start with this. Help? P.S. If you go to the wolfphram alpha website and put copy and paste ((sqrt((1+x)/(x^2))-(1/x)) into the search bar you can see what it looks like...
*May 25, 2012 by Anna*

**Literacy**

Which of the following ways of incorporating an idea from a journal article into your research paper is considered best for expressing that entire idea in your own words? A. quote B. Paraphrase C. Copy and paste D. Summarize
*August 15, 2012 by Priscilla*

**maths --plse help me..**

two solids of right cylendrical shape are 49 cm and 35 cm high and thier base diameters are 16 cm,14 cm respectively.Both are melted and moulded into a single cylinder,56cmhigh find its base diameter
*December 19, 2012 by sarika*

**English**

AS Leo explained a failed business deal that had once_____e(d) him,he______(e)d into the even more interesting tale of his romance with Molly, his business partner. My answers:rigor, curtail Is this correct?
*February 16, 2013 by sam*

**Physics**

You are holding onto a 100 kg basket of fish hanging over the side of a boat. What is the minimum force in Newtons you need to exert to keep the basket from falling back down into the ocean?
*March 12, 2013 by John*

**consumers math**

Jon put 1000$ into each of two different simple interest savings accounts for one year . The total intrerest earned was 5$. What could the interest rate have been for each account ?
*March 15, 2013 by faith*

**physics**

A piece of iron has a mass of 0.4 kg and is initially at 500 degrees. It is lowered into a beaker with 20L of water at 22 degrees. What is the final equilibrium temperature? Assume there is no heat loss to the environment during the process.
*March 17, 2013 by Karthi*

**finance**

Suppose you pay $1000 into a savings account that pays 2% per year, compounded annually. How many years will would it take for the money in the account to double, to $2000? use "successive approximation."
*September 17, 2013 by albert *

**Anatomy and Physiology**

Explain how a drug that sits on acetylcholine receptors will affect muscle function? Is there a good source online to find the above question? My book doesn't go into great detail for me to answer the question.
*February 7, 2014 by Student*

**math**

If true, prove. If false, provide just a counterexample: a. For every function f from nonnegative integers into nonnegative reals, o( f ) = O( f ) −Θ( f ) . (Here, “-“ denotes the set difference: A – B consists of elements in A that are not in B.).
*March 29, 2014 by huing*

**Chemistry Equilibrium **

At 500 ºC, the decomposition of water into hydrogen and oxygen, 2H2O(g) 2H2(g) + O2(g) has Kc = 6.0 × 10-28. What are the concentrations of H2 and O2 that are present at equilibrium in a 2.00 L reaction vessel at this temperature if the container originally held 0.086 mol H2O?
*April 10, 2014 by Anonymous*

**Chemistry**

Label each of the following as endothermic or exothermic A.) Products are more stable than reactants B.) Kinetic energy is converted into potential energy C.) Evaporation D.) Combustion E.) Water freezes F.) Heat seems to disappear
*June 3, 2014 by Dominique*

**physics**

A maass of 0.5kg is attached to one end of the helical spring and produces an extension 2.5cm the mass now set into vertical oscillation of amplitude 10mm the period of oscillation is??....g=10ms2
*July 26, 2014 by kingdavidda1st*

**Physics**

A motorcyclist traveling 35.0 m/s realizes suddenly that he is headed straight for the edge of the Grand Canyon 50.0 m away. He immediately begins to brake, decreasing his speed at a rate of 7.00 m/s^2. With what velocity will he fly off into the canyon?
*September 23, 2014 by Andy*

**math**

Suppose payments were made at the end of each quarter into an ordinary annuity earning interest at the rate of 9%/year compounded quarterly. If the future value of the annuity after 8 yr is $80,000, what was the size of each payment?
*December 14, 2014 by aby*

**English**

I came up with "conventionality is the jailer of freedom and the enemy of growth" which one of the 4 ethics would it fit into best? - individualism - Justice view - moral rights - utilitarian i was thinking it was individualism but i'm not sure
*February 24, 2015 by Sheliza*

**Science help please!!**

How did planetesmals form planets? A. They broke apart into smaller chunks. B. They collided and stuck together. C. They cooled and pulled ice together. D. They began to rotate. Is the answer B? Thank you so much in advance.
*March 30, 2015 by Katty*

**biology**

Closed head injury: A. involves damage to the cortex, axons, and ventricles. B. reduces the risk of Alzheimer’s disease. C. can result in Parkinsonism. D. involves penetration of an object into brain tissue. I chose C
*April 13, 2015 by phia*