Thursday

July 31, 2014

July 31, 2014

Number of results: 20,168

**Physics **

Small parts on a conveyor belt moving with a constant speed of 1m/s are allowed to drop into a bin. The radius R is .5m. The coefficient of friction is .25. What is the angle at which the parts start sliding off the belt???? Dont even know where to begin.
*February 10, 2011 by Kindra*

**Math**

Suppose you invest your money into an account that pays 4.0% per year compounded quarterly. How long (in years) will it take for your money to triple? Round your answer to one decimal place. I know I use this... A=P(1+r/n)^nt But to go from there and get an answer, so confused...
*July 22, 2011 by Tina*

**MATH**

FIND EACH ESTIMATE: 1) A RARE TRUFFLE ONCE SOLD FO $13.20 FOR A 0.44 OZ CAN. APPROXIMATELY HOW MUCH WOULD 1LB OF THIS TRUFFLE COST? 2) THE LENGTH OF THE LONGEST LOAF OF BREAD MEASURED 1,405 FT 1 3/4 IN. IT WAS CUT INTO SLICES 1/2 IN. THICK. HOW MANY SLICES WERE THERE?
*September 5, 2011 by MARCO*

**chemistry**

1. Is there a way to put energy into Zinc Iodide in order to Regain the Elements, Zinc and Iodine? If there is a Way, How does it Happen? 2. What are the Identities of the substances found after electrolysis and heating? I don't understand these questions. Any help would be ...
*September 22, 2011 by John M.*

**Physics**

A Silver bowl has a mass of 1.78kg. It is shaped like a cylinder and has a diameter of 35.0 cm and a height of 8.00cm. It is placed in water. Find (a)the volume of water it displaces, (b) The buoyant force exerted on it by the water, and(c)how deeply it sinks into the water.
*November 6, 2011 by ed*

**Science**

What Temperature would you get after the First 5 Minutes of Putting 4 Ices into a 99 degree warm water? After The Second 5 MInutes? YOu Might need to do this experiment at home. But May anyone Please Help and tell me it in Farenheit so i can confirm my Answers.
*December 13, 2011 by Science*

**Statistics**

Alonzo applied for a job to be an administrative assistant.He had to take a typing test. His words per minute were translated into a z-score. If the z-score was 0, should he be hired? There were 47 applicants, and typing speed is very important.
*April 8, 2012 by Jen*

**mathematic 11**

to save for a motercyle, abdul deposited $2000 into an account that earned simple interest at 5.4% per year. how much more would the investmennt earn in 3 years if it was invested at 5.4% per year, compounded anually?
*May 15, 2012 by josh wat*

**chemistry**

Two liquids of different densities (ρ1 = 1500 kg/m3, ρ2 = 500 kg/m3) are poured together into a 100 L tank, filling it. If the resulting density of the mixture is 800 kg/m3, find the respective masses of the liquids used.
*August 29, 2012 by nick*

**Physical Science**

A block of ice at 0^\circ {\rm C} is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. What is the height necessary for this to occur.
*October 18, 2012 by James*

**physics**

In a head-on collision, a car stops in 0.30s from a speed of 30m/s . The driver has a mass of 73kg , and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fraction of a second?
*October 28, 2012 by Anonymous*

**chemistry**

Use the kinetic molecular theory of gases to explain each of the following: a. a container of nonstick cooking spray explodes when thrown into a fire. b. the air in a hot-air balloon is heated to make the balloon rise.
*November 10, 2012 by Boo Boo*

**Physics**

A 0.200 kg block of ice at -15 degrees Celsius is placed into a pan on a stove, heated to a liquid, and then to vapour with a final temperature of 115 degrees Celsius. Calculate the total amount of heat required for this process.
*January 7, 2013 by Anonymous*

**Math**

Compute the following special functions. Keep the correct number of significant figures. 10^5.4 Can somewhere help me with this? Is it as simple as putting it into my calculator just like that? if so, how do I know what the correct number of sig figs are since the worksheet ...
*January 21, 2013 by carl*

**Physics**

A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a maximum height of 5.75m, at what velocity was it thrown? How am i suppose to do this question if no velocity is given? I need help. I have a test tomm.
*March 4, 2013 by Ted*

**Physics**

A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a maximum height of 5.75m, at what velocity was it thrown? How am i suppose to do this question if no velocity is given? I need help. I have a test tomm.
*March 5, 2013 by Ted*

**math**

PROBLEM SOLVING : CERTIFIED FINANCIAL PLANNER If an individual put the equivalent of $50 per month, or $600 annually into an ordinary annuity, how much money would accumulate in 20 years at 3% compounded annually? How much at 5%?
*May 29, 2013 by jhonatan*

**Physics**

In an ice show a 40.0 kg skater leaps into the air and is caught by an initially stationary 65.0 kg skater. (a) What is their final velocity assuming negligible friction and that the leaper's original horizontal velocity was 4.00 m/s? (b) How much kinetic energy is lost?
*July 14, 2013 by Amy*

**Health**

Which of the following lipoproteins carries dietary fat that is absorbed into the digestive system to the liver and body cells for use? a. Chylomicrons b. High density lipoprotein c. Micelle d. Low density lipoproteins I think its A is that correct?
*October 2, 2013 by Anonymous*

**Chem AP**

A 0.505-g sample of a compound is dissolved in enough water to form 100.0 mL of solution. This solution has an osmotic pressure of 2.56 atm at 25°C. If each molecule of the solute dissociates into two particles (in this solvent), what is the molar mass of this solute?
*February 2, 2014 by Me*

**Chemistry**

Consider the two equilibria: BaF2=Ba2+ + 2F- Ksp=1.7x10^(-6) F- + H20=HF + OH- Kb=2.9x10^(-11) Determine the solubility of BaF2 at pH=5? What I'm mostly confused about is how to determine if F- is dominant or if you have to take HF into account while doing your calculations.
*February 20, 2014 by Anonymous*

**Phy**

A 5.00-g bullet is fired into a 500-g block of wood suspended as a ballistic pendulum. the combined mass swings up to a height of 8.00 cm. What was the magnitude of the momentum of the combined mass immediately after the collision? Answer a. 0.394 kg·m/s b. 0.632 kg·m/s c. 6....
*March 19, 2014 by Jake*

**Physics**

A 5.00-g bullet is fired into a 500-g block of wood suspended as a ballistic pendulum. the combined mass swings up to a height of 8.00 cm. What was the magnitude of the momentum of the combined mass immediately after the collision? Answer a. 0.394 kg·m/s b. 0.632 kg·m/s c. 6....
*March 19, 2014 by Jake*

**coputer**

Write a program that asks the user to enter the high temperature for each day of one week. Store the temperatures in an array. Once completed, output all temperatures that have been stored into the array.
*April 18, 2014 by carine*

**stat mech**

4. A 4.50-kg block of ice at 0.00 °C falls into the ocean and melts. The average temperature of the ocean is 3.50 °C, including all the deep water. By how much does the melting of this ice change the entropy of the world? Does it make it larger or smaller?
*June 23, 2014 by acinad*

**business solutions**

formulate a solution that takes into account audience characteristics... requirements, and expectations? the scenerio I have tell 25 classmate that our trip has been canceled for mexico because the bus company filed bankruptcy and they will not be getting their $100.00 deposit...
*July 20, 2006 by todd*

**physics, please reply.**

block 1 of mass 1 slides from rest along a frictionless ramp from height h=2.50m and then collides with stationary block 2, which has mass2=2.00 m1. After the collision, block 2 slides into a region where the coefficient of kinetic friction is 0.500 and comes to a stop in ...
*November 10, 2006 by Krystal*

**Chemistry**

How do you prepare 600.0mL of 0.48M Al(NO3)3*9H2O? Is this correct? 1. Measure out 71g of solution 2. Put approx. 300.0mL of water into container 3. Add the 71g of solution to the water and mix 4. Add more water until 600.0mL of solution is obtained 5. Mix •Chemistry - ...
*November 25, 2012 by Anon*

**Physics**

Carol drops a stone into a mine shaft 12.6 m deep. How soon after she drops the stone does she hear it hit the bottom of the shaft?
*December 6, 2007 by Einstein*

**ti-83 unit conversion**

How do I do unit conversion using graphing calculator? For example, if you have to convert 4 miles into yards, and you don't know 1760mi=1 yd. Is there any way to do this in calculator? Thanks.
*March 13, 2008 by jen*

**english**

when did bad behavior be considered the cool thing to do? is there like a history of bad behavior being the right thing to do to be accepted into society?
*February 19, 2009 by jon*

**math**

How do i write an equation in point slope form of a line that passes through (6,5) and has a x intercept of -3...also how do i make it into slope intercept form
*April 14, 2009 by jake*

**science**

solve for the amount of force exerted on an 8-kg ball rolling at 2m/s when it bumps into a pillow and stops in 0.5s. how mush force does the pillow exert on the ball?
*October 15, 2009 by saba*

**math**

Yani has between 50 and 100 pennies in her collection. When she divides them into groups of 2, of 3, or of 7, there is always 1 penny left. How many pennies does yani have in her collection?
*November 12, 2009 by Heather*

**physics**

need a step by step process of combining this question into one vector: 56 NEWTONS at 296 degrees, then 83 newtons at 152 degrees
*March 2, 2010 by jake*

**physiology**

Gastrin is a hormone secreted into the __________ by the ___________. Blood; stomach Lumen; stomach Lumen; pancreas Blood; small intestine
*April 26, 2010 by Anna*

**geometry**

A board that is 19 feet long must be cut into two pieces that have lengths in a ratio of 3 to 2. Find the lengths of the two pieces.
*June 7, 2010 by Anonymous*

**college**

convert 2(NH4)3PO4+3HgSO4=3(NH4)2SO4+Hg3(PO4)2 into complete ionic equation,then net ionic equation
*November 4, 2010 by mike*

**Chemistry**

How much heat is required to convert 9 grams of water at 100 degrees C into steam at 100 degrees C. Hvap for water = 40.7 kJ/mol
*December 14, 2010 by Hannah*

**math**

a cube is painted blue,then cut into 27 smaller cubes.how many of the smaller cubes have only two side painted/ggggggggggg
*February 13, 2011 by chrisopher *

**science 8th grade**

I have toy with the density of 2.o g/cm3 ,I put it into tub with water density of 2.0 g/cm3 will the toy float or sink?
*September 22, 2011 by J.a.y.*

**AP Physics**

Light passes from air into water at an angle of incidence of 33.5.degrees Find the angle of refraction in the water. Answer in units of degrees
*September 25, 2011 by Melvin*

**Math**

$500 was deposited into an account at the first of the year. Interest earned was 5%. An additional $15 was deposited each week. How much was in the account at the end of the year?
*March 7, 2012 by Patrick*

**algebra 2 help please**

You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the case.
*May 20, 2012 by jenny*

**MATH**

IF YOU DIVIDE PARK A(656 AREA SQ MI)INTO 32 EQ.PARTS, EACH CONTAINING A WHOLE # OF SQ. MI. HOW LARGE WOULD EA. PART BE? HOW LARGE WOULD THE REMAINING AREA BE?
*October 31, 2012 by ERNEST*

**math**

a cookie recipe calls for 2 1/4 cups of flour.the yield of the recipe is two dozen cookies.how much flour goes into each cookie?
*September 23, 2013 by jesse*

**Pre algebra**

Vernon drew an 8in. Wide by 5in.tall picture that will be turned into a 48 ft wide billboard.How tall will the actual billboard be?
*November 19, 2013 by Danielle*

**physics**

A balistic pendulum is made from a block of wood with a mass of 2.78 kg. A bullet with a mass of 39 g is shot into the block causing it to rise 29.1 cm. What was the speed of the bullet?
*February 9, 2014 by dean*

**Algebra**

Daniel has a piece of wire that is a fifth of a yard long. He cuts the wire into three equal pieces. What fraction of a yard is each piece?
*March 17, 2014 by Alexis*

**Astronomy**

How the asymmetry between matter and anti-matter in our Universe might be generated. Why might neutrinos be a key player in achieving this? (a) We already know neutrinos can morph from one neutrino type to another. It is possible, although not certain, that neutrinos could ...
*October 1, 2013 by qwerty*

**literature**

My assignment is to find two stories from the 19th century. But the stories have to be good enough to into a musical that my class will actually perform for my highschool. I was looking for some of the darker stories, but I don’t know were to find them.
*February 27, 2008 by lizi*

**physics**

-A person throws a ball upward into the air with an initial velocity of 15 m per second. - How could you calculate how high the ball goes and how long the ball is in the air before it comes to the thrower's hand?
*July 21, 2008 by ruby*

**physics**

Given: latent heat of fusion of water 3.33x10^5 J/kg. A 147 g cube of ice at 0 degress C is dropped into 1.3 kg of water that was originally at 79 degrees C. What is the final temperature of the water after the ice melts.
*December 8, 2009 by Ericka*

**chemistry**

5.0 moles of a gas is put into a container of 2.0L. More gas is added to the flask s othat there is now 15 moles of the gas present. What must the new volume be if temperature and pressure are to remain constant?
*February 4, 2010 by lelia*

**Human Resources**

What is the system used by organizations to determine or identify what human resources are needed by the organizaton? Take into consideration internal and external factors that influence an organization,s human reource needs.
*June 20, 2010 by Linda*

**physics**

A goalie slips and falls to the ground and the opponent's forward, 20 m out in front of the net boots the ball toward the net at a speed of 15.9m/s and an angle of 45 degrees above the horizontal. Does the ball go into the net?
*October 9, 2010 by katelyn*

**Physics**

A 0.026 kg bullet is fired vertically at 205 m/s into a 0.15 kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collision, assuming the bullet embeds itself in the ball?
*October 29, 2010 by Abdullah*

**Physics**

A chair with a mass of 30.0kg is shot with a 10g bullet traveling at a speed of 250m/s. The bullet goes 6cm into the chair. The given kinetic friction for for this problem is .2. How far does the chair slide in cm?
*October 2, 2011 by Phil*

**Math**

A piece of rope is cut into three pieces in the ratio 2:7:11. If the longest piece is 72cm longer than the shortest piece, find the length of the original rope. Ps: how do I do this type of question? What are the fixed steps?
*October 15, 2011 by StuartKess*

**chemistry**

The heat of vaporization of water is 40 kJ mol-1 at 100oC. What percentage of the heat supplied to vaporize the water can be converted into work if the water is vaporized at 100 degrees C against a constant pressure of 1 atm?
*November 8, 2011 by nath*

**Math**

mariah bought a rectangular piece of land that was 3 miles long and 2 miles wide.She plans to divide into 2 sections of equal area. if she farms one of the sections how many square miles could be farmed?
*March 1, 2012 by Bobby*

**Math**

mariah bought a rectangular piece of land that was 3 miles long and 2 miles wide.She plans to divide into 2 sections of equal area. if she farms one of the sections how many square miles could be farmed?
*March 1, 2012 by Bobby*

**Math**

mariah bought a rectangular piece of land that was 3 miles long and 2 miles wide.She plans to divide into 2 sections of equal area. if she farms one of the sections how many square miles could be farmed?
*March 1, 2012 by Bobby*

**math**

I'm doing a unit on volume and surface area. So there's a diagram that shows a fish tank after a container of water is poured into the tank. How many containers of water are needed to fill the tank? What is the formula to finding this?
*May 10, 2012 by riley*

**physics**

moving car runs into stationary car, (against a wall)car does not move, however, the wall push back cancelling the force. Explain Newton's law that apply. Thanks, George
*December 22, 2012 by george*

**math**

hermione puts $1000 into an account on january 1, 2008. if the account is compounded continuously at a rate of 7.9%, in what month of what year will the account reach $100,000? Is the correct answer January,2069?
*April 23, 2013 by Beth*

**Physics**

At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 30.0781 cm on a spring with a spring constant of 15.7711 N/m. The mass of the bananas is 69.6297 kg. What is the speed of the bananas? Answer in units of m/s
*May 6, 2013 by dallas*

**CHEM **

A 0.229 mol sample of PCL5 is injected into an empty 3.20 L reaction vessel held at 250 degrees celsius. Calculate the concentration of PCl5 and PCl3 at equilibrium. Kc=1.80 M PCl5 -------> PCl3 + Cl2
*February 10, 2014 by Mer*

**physics**

A hammer with 10 J of kinetic energy hits a nail and pushes it 5.0 mm into a plank. Both the hammer and nail come to rest after the collision. What is the average force that acts on the nail while it moves the 5.0 mm?
*April 14, 2014 by Anonymous*

**math**

How to you do the prime factorisation of 350 using exponets? Just break it down into smaller and smaller factors until are are prime. 350 = 50 * 7 = 10 * 5 * 7 = 5*2*5*7 = (5^2)*2*7 1000
*January 16, 2007 by Lesley*

**math**

make triangles and find the area of those triangles and then add em together. I need to find the area of a polygon,breaking into simpler parts. how do you do it?
*April 18, 2007 by jamay*

**science year 7**

when zinc is dropped into hydrochloric acid whaich gas is formed? is it zinc chloride? how would you test for the gas and what would happen?
*May 5, 2008 by lolly*

**Latin**

I am trying to write "there are many islands" in Latin. How do you say there? Or can you just start with "are"? Would many islands count as a predicate nominative, or is it would you go into the accusative tense? Thanks!
*February 23, 2009 by Leah*

**physics**

Carol drops a stone into a mine shaft 122.6 m deep. How soon after she drops the stone does she hear it hit the bottom of the shaft?
*May 26, 2009 by emily*

**Math**

By Moving Only 2 sticks of these three equal sized squares cna be changed into 4 equal sized rectangles. which 2 sticks should be moved?
*September 6, 2009 by Chidera*

**math**

What is the shortest lenght of television cable that culd be cut into either a whole number of 18ft pieces or a whole number of 30ft pieces?
*September 25, 2009 by cindy*

**Math**

A cable 84 meters long is cute into two pieces so that one piece 18 meters longer than the other. find the lenth of each piece of cable.
*November 18, 2009 by Kerria*

**math**

Jeremy has a fish tank that has a 40-cm by 70-cm rectangular base. The water is 25 cm deep. When he drops rocks into the tank, the water goes up by 2 cm. What is the volume in liters of the rocks
*February 8, 2010 by jena*

**social studies**

the appalachian mountain extend north from the united states into the canadian provinces of ______,______ ______,______ _____ _____,and _______
*February 22, 2010 by kate*

**Poetry**

What is one metaphor and one simile in the poem "Leaning Into The Afternoons" by Pablo Neruda? What do they mean and how do they aid what Neruda is trying to state in the poem?
*March 23, 2010 by Troy*

**math**

Aparty has a $500,000 IRA. How should he divides the money into fund A for 5.2% annually, and Fund B for 7.7% annually, to produce an annual income of $30,000?
*August 26, 2010 by lauri*

**physics**

would a larger rock dropped into a large pan of water make a larger wave than a smaller rock, and which would travel faster?
*February 2, 2011 by jason*

**physics**

a bullet shot at 500 m/s into a block of wood of mass 0.49kg and becomes in-bedded in it. if it gives the block a speed of 11 m/s, find the mass of the bullet.
*February 22, 2011 by josh anderson*

**maths**

a 10cm multiplied 10cm multiplied 10cm wooden block is painted red n all of it face. it is then cut into cubes, 10cm on each edge solve
*June 18, 2011 by tabitha*

**Oceanography**

How much heat must be added to turn 3 grams of water at 100°C into a vapor and what will be the final temperature after this much heat is added
*July 7, 2011 by Pat*

**Language Arts**

In the sentence....It formally accepted the bride into the groom's family. Would accepted be a mental action verb or a physical action verb?
*October 3, 2011 by Brandi*

**geometry**

a solid aluminum cube measuring 15 inches on a side is melted and rolled into an aluminum wire tat is 0.2 inches in diameter. what will be the length of this wire?
*January 17, 2012 by mary*

**Sociology **

How would eating disorders factor into the media/cultural aspect of sociology? Would they be considered an unintentional/long term media effect?
*April 26, 2012 by Sarah*

**Math**

Find the intersection point. 3x+2y = 3 2x+10y = -5 I put them into y=mx+b form and got y=-3/2 + 3/2 y=1/5x - 1/2 I can't seem to find the intersection point by graphing it either, since it won't be accurate.
*September 8, 2012 by Vanessa*

**science**

A stone is dropped into a well of 80m deep. The sound of splash is heard 4.20 sec after the stone is dropped. Find the velocity of sound in air.
*January 5, 2013 by Abhay*

**Physics**

A 3 cu ft ballon is filled with air at 90 degrees F. How many cu ft will that same ballon contain one hour after it is taken into an air conditioned room at 70 degrees F?
*February 3, 2013 by Mustic Dicko*

**physics**

A 3 cu ft ballon is filled with air at 90 degrees F. How many cu ft will that same ballon contain one hour after it is taken into an air conditioned room at 70 degrees F?
*February 3, 2013 by Mustic*

**chemistry**

In an experiment, 6.700g of hydrogen sulfide is fully decomposed into its elements.If 0.396g of hydrogen is obtained in this experiment, how many grams of sulfur must be obtained?
*July 27, 2013 by fatima*

**math**

a woman puts $580 into a savings account for one year. the rate of interest on the account was 6 1/2%. How much interest for the year in dollars and cents?
*August 10, 2013 by tori*

**history**

not sure about this ..any help? The Greenback party and Farmers' Alliances both called for a. putting more money into circulation b. opening American markets to foreign crops c. cutting back on protests d. repealing the Sherman Silver Purchase Act i have no clue=[
*February 22, 2009 by Bella*

**English**

Can someone please tell me what this means: Secretive, not deceptive. She doesnt want to be comnfromed. And this: I love New York on summer afternoons when everyone's away. There's something very sensuous about it - overripe, as if all sorts of funny fruits were going to fall ...
*March 18, 2010 by Anonymous*

**am hist**

Which of the following statements about the provisions of the Compromise of 1850 is true? A. The New Mexico Territory was absorbed into Texas. B. Fugitive slaves were denied any and all constitutional rights. C. The slave trade was abolished in the District of Columbia. D. ...
*February 8, 2012 by damu*

**history**

Which of the following statements about the provisions of the Compromise of 1850 is true? A. The New Mexico Territory was absorbed into Texas. B. The slave trade was abolished in the District of Columbia. C. The principle of popular sovereignty was abandoned. D. Fugitive ...
*March 7, 2012 by anonomous*

**SCIENCE**

SUPPOSE THAT THE TYPE OF DRINK DID NOT AFFECT WHICH CAN FLOATED OR SANK. mAYBE THE CANS THEMSELVES WERE DIFFERENT IN SOME WAY. mAYBE SOMETHING BESIDES SODA GOT INTO ONE OF THE CANS BY MISTAKE. WRITE DOWN AT LEAST TWO POSSIBLE EXPLANATIONS FOR THE EVENTS.
*August 22, 2007 by Anonymous*

**native american history**

I have to explain the concept of the west and its inhabitants during the last half of the 19th cnetury and explain the transition of the identity of the indian leading into the early 20th century. can someone please tell me where i can find information about this?
*September 12, 2007 by teresa*

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