Questions Asked on
April 28, 2013

tigonometry
the end of a 40 inches pendulum describe an arc of 5 inches through what angle does the pendulum swing?
asked by ahzirk mae 
Physics
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees
asked by Chris 
Physics
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these
asked by Chris 
Life orientation
Critically discuss 10 ways in which the environmetal health hazards can impact negatively on one's health
asked by Mbali 
maths
Insert three geometric means between 1 and 81.
asked by ELIJAH HAVA 
maths
find a6 for an arithmetic sequence where a1=3x+1 and d=2x+6. 2.A display of cans on a grocery shelf consists of 20 cans on the botton, 18 cans inthe next row, and so on in an arithmic sequence, until the to[p row has four cans. how many cans , in total,
asked by ELIJAH HAVA 
chemistry
calculate density of atoms in(001) in Lithium answer in units of atoms/cm2
asked by himani 
maths
Find the indicated sum n sigma k=1 4(0.5)^k
asked by ELIJAH HAVA 
chemistry
a chemical analysis that silicon crystal weighing 100 gm containing 16.5 mg of aluminium which is substitutionally incorporated (the aluminium atoms replaced some of the silicon atom) what is the number of extrinsic charge carriers in this crystals? answer
asked by himani 
chemistry
the energy of vacancy formation in palladium is 1.5 eV.at 888 C there is one vacancy formation for every million (10^6) atoms sites. what temperature would be achieved a vacancy fraction of one for every thousand (10^3)atoms sites?
asked by himani 
chemistry
the youngs modulus for the steel is 20.7*10^10 N/m2,how much will a 2.5 mm diameter wire 12 cm long, be strained when it support a load of 450 N? express strain as decimal not a %
asked by himani 
physics
three point charges each of magnitude +q are located at the vertices of an equilateral triangle of side L. what magnitude of charge should be placed at the centroid of triangle to keep all the three charges in equilibrium?
asked by Akash 
physical science
The shape of water molecule is (A)tetrahedral (B)linear (C)angular (D)trigonal planar
asked by kwanele 
calculus
find the absolute minimum and maximum valies of f(x)=x^4+2x^3+5 on the interval [2,2]
asked by moises 
calculus
find the absolute minimum and maximum values of f(x)=x^(1/3) (3+x) on the interval [2,1]
asked by help!! 
math
verify that the function satisfies the hypotheses of the mean values theorem on the given interval. then find all numbers c in the given interval that satisfy the conclusion of the mean value theorem. f(x)=2x/x4 [0,3]
asked by sonia 
math
what is the smallest perimeter possible for a rectangle whose area is 1000in^2 and what are its dimensions?
asked by sonia 
math
find the radius and height of a cylindrical soda can with a volume of 21in^3 that minimize the surface area.
asked by sonia 
life orientation
Identify and describe 3 environmental health hazards that cause ill health, accidents crises, and disaster within your community within South Africa and globally. Include evidence that is current of the identified issues
asked by lerato 
life orientation
Identify and describe 3 environmental health hazards that cause ill health, accidents crises, and disaster within your community within South Africa and globally. Include evidence that is current of the identified issues
asked by lerato 
life orientation
Identify and describe 3 environmental health hazards that causes ill health, accidents,crises, and disaster within your community or any other community within South Africa and globally. Include evidence that is current of the identified issues
asked by lerato 
algebra 2 ap
Jason uses his car for his job. He is allowed to depreciate the car 7% per year. IF the car was worth $23,000 new, in about how many years will the car be worth $3,000?
asked by Anna 
physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of
asked by Anonymous 
physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of
asked by Anonymous 
physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of
asked by Anonymous 
maths
A deck of cards consists of 8 blue cards and 5 white cards. A simple random sample (random draws without replacement) of 6 cards is selected. What is the chance that one of the colors appears twice as many times as the other?
asked by Anonymous 
math
Jason uses his car for his job. He is allowed to depreciate the car 7% per year. IF the car was worth $23,000 new, in about how many years will the car be worth $3,000?
asked by Anonymous 
L.o
Identify nd describe 3 environmental health hazards that cause ill health,crises nd disasters in south africa?
asked by Sarah 
PHYSICS!!!! help!!!
A perfectly spherical, but squishable ball of radius 10 cm is blown up to an internal pressure of 2 atm. The ball is placed between two perfectly vertical walls and the walls are slowly squeezed together. Initially the ball slips down the walls, but when
asked by your hero.... 
physics
Two identical wires with resistance,R and mass,m rest on two smooth parallel superconducting (zero resistance) rails. Initially, they are separated by a distance,D=70 cm. Suddenly, a uniform magnetic field B, perpendicular to the plane of the rails is
asked by tsong 
chemistry
why does MgO has a higher boiling and melting point than NaCl?
asked by black_widow 
chemistry
How to compare the melting point of two ionic bod or two covalent bond?
asked by black_widow 
Life Orientation
Describe the life style disease/behaviour and explain5 or more factors that contribute to the disease.
asked by Anonymous 
physical sciences
plan,design and conduct an investigation to find out wether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn
asked by machata rilinde 
science
A car is travelling at 20m/s along a road. a child runs out into road 50m ahead and car driver steps on break paddle. what must car retardation rate be if the car is to stop just before it reaches the child?????
asked by Pranjal 
chemistry
a sample of molybdenum is analysed by xray diffraction using Nik(alpha) radiation. calculate value of angle of which the lowest angle of radiation is observed . answer in degrees.
asked by himani. 
life orentation
discribe the lifestyle disease/behaviour.mation 5 or more factor
asked by majobe 
chemistry
N Type silicon has been produced by doping with (P).the charge carrier population based on electrical conductivity measurement is determined to be 3.091*10^17 carriers/cm3 at room temperature. calculate doping level of P (how much P has been added to the
asked by himani. 
chemistry
consider an xray tube with a Cun anode and a monochromator consisting of a Ni single crystal with (111) planes parallel to surface of crystal. what is the lowest voltage capable of producing Xrays trough a monochromator ? answer in V.
asked by himani. 
chemistry
Which of the following will increase the strength of a sample of 90% SiO2  10% MgO Quench the entire sample in water Quench half of the sample in water Cool the entire sample with air jets Cool half the sample with air Submerge the sample in a salt bath
asked by a 
chemistry
Calculate the density of atoms in (011) in lithium (Li). Express your answer in units of atoms/cm2.
asked by a 
chemistry
to reduce loss of helium , a pressure vessel is lined with a membrane made of tantalum.the concentrate of helium at the inner surface of the membrane is held constant at 4.44*10^5kg/cm3, which the concentrate at the outer surface of the membrane is held
asked by himani. 
life oriantation
Critically discuss 10 ways in which the environmental health hazard can impact negatively on one's health
asked by maqaqa edwin 
life orientation
critically discuss five ways in which the environmental factor impacts on the community
asked by naz 
Life Orientation
Provide 5 ways in which you critically discuss behaviour impact on the teenager
asked by Prtty mkhize 
chemistry
acetaldehyde Ch3Cho will decomposed into methane and CO according to Ch3Cho>ch4+Co at 450 C the rate consumption of Ch3cho is measured to vary with the concentrate of heliumCh3Cho raised to the power 1.5 with a Ch3Cho concentrate of 0.222 M ,the rate of
asked by himani. 
Life Orientation
Describe the life style disease cancer and explain 5 factors that contribute to the disease
asked by Evimuzi 
chemistry
A specimen of LaNi5 containing hydrogen is placed in a vacuum furnace. After 1 hour, at what depth from the surface of the specimen has the concentration of hydrogen reached 1/3 the initial concentration? The diffusion coefficient of hydrogen in the alloy
asked by himani. 
Life Orientation
What are the three environmental health hazards that cause ill health accidents,crises,and disasters within S.A?
asked by Yola 
life orientantion
Identify and describe 3 environmental health hazards that cause ill health,crises and disaster
asked by lungile 
mathematics
find the 8th term of an A.P 3,1,1
asked by prince 
mathematics
what value of k makes the given expression a perfect square?M square 8m+k
asked by prince 
Life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impacts on the community.
asked by Njabulo 
Life orintation
Explain 5 factors that contribute to the disease HIV AIDS
asked by ANTHONY 
Physics
A 39.0 kg box initially at rest is pushed 4.50 m along a rough, horizontal floor with a constant applied horizontal force of 135 N. If the coefficient of friction between box and floor is 0.300, find the following. (a) the work done by the applied force J
asked by Vince 
economics
what's the difference between buying rate and selling rate?
asked by ll 
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
asked by Anonymous 
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
asked by Annabel 
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
asked by Annabel 
math
Initially two painters are available to paint a picket fence. Peter alone could paint the fence in 6 hours; Pat alone in 3 hours. It is decided that they will work simultaneously to paint the fence. Before they start, however, along comes Mary, who alone
asked by borat 
Life orientation
5 ways in which the human or environmental problem impacts on the community
asked by Mosibudi 
Science
The density of ethanol is 0.789 g/cm3 at 20 degrees celsius. What is the mass of 150cm3 of this alcohol?
asked by Kelly 
Math (Quadratic Function)
Suppose p(x)=ax^2+bx+c is a quadratic polynomial satisfying p(7)−p(3)=214. Determine the value of p(9)−p(1).
asked by Bob 
algebra
What are the increasing and decreasing intervals for the equation y=x^22x15
asked by Scarlet 
Life Orientation
Eight ways in which waste dumps impacts within communities
asked by Mavee 
Agricultural science
Outline and explain the objectives o fencing a farmland
asked by Phosh 
Agricultural science
What are the important features of a building which could be used as a milking shed (parlour), dairy (milk room) and food store to ensure production of clean fresh milk?
asked by Phosh 
Biochemistry
Calculate the ATPs resulting from the total oxidation of the following compounds: a. Fructose6phosphate b. 3Phosphoglycerate c. SuccinylCoA d. Stearic acid How do I begin?
asked by Riley 
Chemistry
Aluminium react with oxygen to form aluminium oxide.how many grams of potassium chlorate V would be heated to produce enough oxygen to form 5.1grams of aluminium oxide
asked by Hellen 
physics
a rocket is fire vertically and ascends with constant vertical axceleration of 20 m/s^2 for 1min. its fuel is then all used and it continues to move as a free falling bodyn neglexting rhe variation of g altitude, compute a) the max altitude reached by the
asked by gladys 
Physical Education
Is a drug a food?
asked by Amber Staton 
physics
Consider two straight bars of uniform cross section made of the same material. Bar 1 has an axial length of and a square cross section with side length . Bar 2 has an axial length of and a round cross section with diameter. When subjected to axial tension,
asked by asas 
life orientation
five ways in which the human or environmental impact fire on the community
asked by mita 
Engineering
A physics major is working to pay his college tuition by performing in a traveling carnival. He rides a motorcycle inside a hollow transparent plastic sphere. After gaining sufficient speed, he travels in a vertical circle with a radius of 13.4 . The
asked by Lama 
lifeorientation
two institution that involved in supporting or giving redress to these disaster of Hiv and Aids
asked by kgomotso masetla 
thohoyandou secondury school
provide 8 ways in which you critically discuss how life style/behaviour of cancer disease impact on the teenager
asked by matsea isaac 
life orientation
Identify and describe three environmental issues that cause ill health, crisis and disasters
asked by karabo 
math
A standard die is rolled three times. What is the probability that a prime number is rolled on exactly one of the three rolls?
asked by jake 
Physics
52*10E10Kg
asked by Ali 
trig
at one point in the day, a tower that is 150 feet high casts a shadow that is 210 feet long. Find, to the nearest tenth of a degree, the angle of elevation of the sun at that point
asked by ainy 
Algebra
A freight train leaves Chicago traveling West at 35 mph. An hour later a passenger train leaves Chicago traveling on a parallel track at 60 mph. How far from Chicago will the passenger train catch up to the freight train?
asked by Sarah 
Math
Solve the following system: 4xy+z=6 2x+y+2z=3 3x2y+z=3 Find the values for x, y, and z
asked by Lana 
Chem
If you need 2.74 moles of acetic acid how many liters of your vineger must you take
asked by Connie 
life orientation
People could you help me identify And describe 3 environmental health Hazards that cause ill health please
asked by michell 
Math
suppose you put one bacterium on a petri plate containing a suitable medium at a favorable temperature. If after 6 hours you found there to be 40 bacterium. What would be its exact double time to the nearest minute?
asked by Anonymous 
School (Plz read, really important)
Am I eligible to get a President's Award for Educational Excellence or the President's Award for Educational Achievement and Daughters of the American Revolution??? Here are my grades from last year and this year so far and everything else I accomplish:
asked by LARUEN 
chemistry (charles law)
1.)A ballon is filled with 3.0L of helium at 310k.The balloon is placed in an oven where the temputure reaches 340k.what is the new volume of the ballon?
asked by ty 
life science
Write an assay to briefley explain how geographic isolation of a common ancestral species of finches has led to the development of 14 different species of finches in the galapagos islands
asked by Anonymous 
chemistry (charles law)
A 4.0L sample of methane gas is collected at 30.0 celcius .predict the volume of the sample at 0 celcius.
asked by ty 
chem. mix of boyles and charles law
The volume of a scuba tank is 10.0L.It containes a mixture of nitrogen and oxygen at 290.atm.what volume of this mixture could the tank supply to a diver at 2:40 atm?
asked by nene 
Algebra
How do you factor ax^2+bx+c? I'm so confused. I remember my teacher saying to use the discriminant b^24ac but when I do find the answer what do I next? Please help! For ex. Factor the trinomial if possible. If it cannot be factored, write not factorable.
asked by Emma 
chem (boyles and charles law)
A helium filled balloon has a volume of 2.75L at 20 celsius .The volume of the balloon decreases to 2.46L after it is placed outside on a cold day.What is the outside temperature in celsius?
asked by nene 
5 th grade math
pilar has 4 marbles in a bag .they are green,red,blue,and yellow.she chooses a marble without looking,replaces it,and then chooses another marble.if she wants to get a green marble exactly 1 time out out of the 2 draws,how many favorable outcomes are
asked by Pilar 
Physical Science
Four balls are taken to the top of a building. Ball 1 is dropped (zero initial velocity). Ball 2 is thrown straight up with a velocity of 3 m/s. Ball 3 is thrown straight out with a horizontal velocity of 3 m/s. Ball 4 is thrown straight down with a
asked by ayana 
chemist
What is the concentration of the hydroxide ion in a solution if 0.12 mol of strontium hydroxide are dissolved in water and the final solution volume is 500. mL?
asked by Linnessa 
logic
1. Which of the following may not qualify as a falsifiable claim? (Points : 1) Your luck will improve. Your house will be sold tomorrow. Granite is more dense than sand. Smoking may cause heart disease.
asked by Anonymous 
stats
Identify the direction and all possible interpretations of each of the following correlations. Be sure to identify each example as positive, negative, or zero (not correlated). Then give all possible causal interpretations for the results. Many students in
asked by Anonymous 
math
3x4y=6 2x+6y=11
asked by elizabeth 
zonkizizwe secondary
Write an assay to briefley explain how geographic isolation of a common ancestral species of finches has led to the development of 14 different species of finches in the galapagos islands
asked by samkelisiwe Nyawuza 
physics
a bullet of mass 0.015kg strikes a ballistic pendullum of mass 2kg.the centre of mass of the pendulum rises a verticle distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullets initial speed.(show all calculations
asked by Anonymous 
Physics
The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0% of its length. What is the tension in the guy wire? Link to picture of problem which is needed
asked by John 
life orientation
5 ways in which the human or environmental problem impacts on the community?
asked by given 
chemistry
The following reaction was carried out in a 2.00 reaction vessel at 1100 : C+H2O > C)+H2 If during the course of the reaction, the vessel is found to contain 7.00mol of C, 13.3mol of H2o, 3.80mol of CO, and 7.20mol of H2, what is the reaction quotient ?
asked by JAclyn clark 
Trigonometry
a skater skates along a straigh path from point A to point . Two streets that intersect a point C also intersect the path at points A and B. Street AC is 0.4 miles and street BC is 1.3 miles. The included angles at c is 107 . How far did the skater skate
asked by Anonymous 
5th grade math (word problems)
Maria is packaging boxes into a carton that is 4 in. x 6 in. x 3 in. THe boxes are 2 in. x 1 in. x 1 in. How many boxes will fit in the carton? I'm not sure how to solve. I know volume = l x w x h. The carton has volume of 72 cubic inches (4 x 6 x 3). THe
asked by Alex 
Physics
Wat is d bond between silicon and germanium
asked by Mei 
chemistry (Pls Bob check for me)
Aspirin c9h8oh molar mass = 180.1g/mol can be prepared by the reaction of salicylic acid c7h603 molar mass = 13801 g/mol with acetic anhydride c6h603, according to the following equation. A chemist starts with 2 gram of salicylic acid reacts it with excess
asked by Fai 
Physics
Calculate d energy of d 3rd level of an atom if d ground state energy is 24.8ev
asked by Mei 
chemistry
If 13.5 ml of concentrated (17.0 M) of sulfuric acid was spilled on the chemistry counter, calculate the mass of sodium bicarbonate needed to neutralize the acid
asked by Kaitlyn 
CRC
A sample of ideal gas is in a sealed container. The pressure of the gas is 675torr , and the temperature is 28\, ^{\circ}C . If the temperature changes to 91\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas
asked by Touch 
chem (boyles and charles law)
A 1.00L balloon is filled with helium at 1.20 atm.If the balloon is sqeezed into a 0.500L beaker and doesnt burst ,what is the pressure of the helium?
asked by ty 
Stats
1. If you were to receive $3 for every time a 7 or 11 was rolled with two fair dice and lost $1 for all the ther values, what is the expected value (mean) for you as a gambler in this experiment? (please show work so I know how to do it). 2. Going with the
asked by Kayla 
stats
The percent of fat calories that a person that in America consumes each day is normallydistributed with a mean of 36 and a standard deviation of 10. Suppose that 16 individuals are randomly chosen for an experiment. 1. Completely describe the distribution
asked by Kayla 
algebra1
he drove an average of 50 mph for 6 h for the 1st 4 hours he drove 47 mph what was his speed for the ast 2 hours
asked by jj 
Accounting
On an Organizatrional charet, span of control refer to the
asked by Anonymous 
math
least to greatest 1/8,1/10,1/7
asked by madi 
maths
1.you visit thr Canyon and drop a penny off the edge of a cliff. The distance the penny will fall is 16 feet the first second, 48 feet the next second, 80 feet the third second,and so on in an arithmic sequence. What is the total distance the object will
asked by ELIJAH HAVA 
math
jason and jenny went to see the movie Vampires From Mars. Jason told his mother, " The movie starts at 1:15 p.m. and is 2 hours and 56 minutes long, so it will end at 5:11 p.m. Please pick us up then." What was jasons mistake and how can it be fixed.
asked by help 
chem
How many moles of potassium iodide, KI, are required to precipitate all of the lead(II) ion from 25.0 mL of a 1.6 M Pb(NO3)2 solution? A. 0.020 mol B. 0.040 mol C. 0.080 mol D. 0.64 mol E. 64 mol
asked by victoria 
Literature
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main? A. What (time) did he call? B. Do you know what the (owl) signifies? C. Deliver the (goods) soon, or else D. The recipe calls for one pint of (cream).
asked by Jen 
math
barry buys a rug that is 35 inches by 4 feet.what is the area of the rug?
asked by inna 
microeconomics
The Consumer Price Index (CPI) for the year 2012 is 2.412 and the retail price per bushel for corn is $US12.06. Using 1992 as the base year (I.e CPI is 100) by how much would the real price for corn have risen or fallen if the retail price for corn in 1992
asked by nando 
geometry
WHAT IS ad TO THE NEAREST 10 ON A KITE WHEN THE KITE IS22,7, AND 12
asked by EVA 
math, duhhh!
New flat screen tvs flash even faster than older tvs. Since dogs need a flicker freqency rate of 75, dogtv works as intended only on newer tvs. One type of new tvs flash 500 frames each second. How many moreframes does it flash than an older tv with a
asked by help now 
dimani agriculrural high school
describe leukemia and explain factors that contribute to the disease
asked by penelope munwai 
Spanish
I have to do a menu for a restaurant in Spanish but I don't know how I say the name for my restaurant in Spanish. How would I say, "The Poinsettia Mexican Restaurant" in Spanish?
asked by SoccerStar 
algebra
6x+2/3x+3 division sign 2x2/4x+4
asked by jj 
Eng B
An author of detictive novel is most lkely to use figurative language to A. Entertain the reader. B. help the reader visualize a character. C. suggest hidden meanings. D. mislead the reader. Answer is "B"
asked by Jen 
Chemistry
A sample of gas is confined to a cylinder housed with a movable piston. Initially, the gas occupies a volume of 2.7 L at 6.0 atm and 25°C. Calculate the volume of the gas sample if the pressure is reduced to 1.8 atm and the temperature decreased to 20°C.
asked by Kiera 
Physics
You need to produce a solenoid that has an inductance of 2.51 μH . You construct the solenoid by uniformly winding 1.17 m of thin wire around a tube. How long, in centimeters, should the tube be?
asked by JD 
life orientation
5 ways in which human or environmental problem on the health
asked by anonymous 
statistics
the probability that a house in an urban area will develop a leak is 5%. if 23 houses are randomly selected, what is the probability that none of the houses will develop a leak?
asked by sara 
Calculus
Given the function: f(x) = x^2 + 1 / x^2  9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative f) discuss the concavity g) find any inflection points Please show
asked by Gabby 
Chemistry
A current of 2.34 A is delivered to an electrolytic cell for 85 minutes. How many grams of Au will be deposited from an aqueous solution of AuCl3?
asked by Danielle 
7th Grade Math for Steve.. or Ms. Sue
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 ** The sequence is neither geometric nor arithmetic. 2. –4, 8,
asked by Gabby 
Life orientation
In 1015 lines critically discuss 5 ways in which the environmental problem impacts on the communitylack of infrastructure
asked by Sello 
physics
Construct a 5th mode standing wave on a string that has an unknown mass hanging from one end. The distance between fixed ends of the string is 0.9 meters. If the wave speed on the 1.3 meter string is 216 meters per seconds and the string has a mass of 3
asked by Rachel 
physics
In order for me to fill the table of equilibrium, how do I calculate change(mol) Please give me in detail about filling the table
asked by Lindokuhle 
History
Well I have been working on an essay for a couple days now about slavery, here it is: Slavery began in the 16th century, but ended in the 19th century. Slaves went through a lot of torture then, but some blacks now still deal with some of the problems the
asked by Nicole 
Science
Acetaldehyde, CH3CHO, will decompose into methane and carbon monoxide according to CH3CHO (g) > CH4 (g) + CO (g) At 450C the rate of consumption of CH3CHO is measured to vary with the concetration of CH3CHO raised to the power 1.5. With a CH3CHO
asked by A 
chem
How many grams of TiCl4 are needed to produce 17.8 g of titanium? what equation do i use?
asked by sarah 
Chemistry
A current of 2.34 A is delivered to an electrolytic cell for 85 minutes. How many grams of Au will be deposited from an aqueous solution of AuCl3?
asked by Danielle 
math
a man pays 60 cents for every 200m3 of gas used,plus a fixed charge of $13.75. How much does he pay when he uses 55 000m3 of gas?
asked by Jenna 
math
a company employs 12 gardeners at $26 per day , and 8 clerks at $17 per day. What is the mean daily wage,in dollars,of the 20 employees?
asked by Jenna 
science
A sandstone observed in the field contains wellsorted, wellrounded, fine pitted and reddened grains. What does this tell you about the process that led to the deposition of this rock and the environment in which it formed? Please give your answer as a
asked by sam help plz 
Stats
According to genetic theory, every plant of a particular species has a 25% chance of being redflowering, independently of all other plants. Among 10 plants of this species, what is the chance that fewer than 4 are redflowering?
asked by mmpt 
chemistry (Pls Bob check for me)
what mass of 25% ba(n03)2 solution contain 40 grams of ba(n03)2 ? Answer 160g My calculation 40g/261.37g/mol = 0.15305/0.25g = 0.612 This answer is not right Who helps
asked by Fai 
Language Arts
The word survivor comes from the Latin root vivere, meaning "to live." Which of the following words does not share the same origin? (1 point) vivid revive divide vitality My Answer: 1)C Is this correct?
asked by Gabby 
Phys
A surgeon is using material from a donated heart to repair a patient's damaged aorta and needs to know the elastic characteristics of this aortal material. Tests performed on a 16.0 cm strip of the donated aorta reveal that it stretches 3.16 cm when a 1.60
asked by Aimes 
math
ellen bought 4 1/4 yards of fabric for $3.25 per yard. how much was ellen charged for this fabric. I know 4x 3.25 is 13.00 dollars so far how do I get the rest solved help I have a bunch more like this
asked by melody 
algebra
how do you do the linear equation y + 9 =1/5x and 45  3y = 15x
asked by Reen 
early childhood education
States must search for and locate children with disabilities through: A. Child Find. B. Zero Reject. C. Due Process. D. Appropriate Education.
asked by farida 
Algebra
How do you graph the equation of 1.2x + 2y= 4 and y = 0.6x + 8
asked by Reen 
algebra1
6x+2/3x+3 division sign 2x2/4x+4
asked by jj 
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
asked by Anonymous 
life orientation
Discuss in a paragraph of 150 words ways in which one can take responsibility to provide safe and heAlth environment through floods
asked by ammanda 
Physics Electricity and magnetism
A current with sinusoidal timedependence, whose peak value is 3.55 A and frequency is 463 cycles per second, passes through a long straight wire. A rectangular 72.2 cm × 32.5 cm loop of copper wire is located 80.2 cm from the wire and is coplanar with
asked by JD 
ChemistryPressure
The wastewater solution from a factory containing high levels of salts needs to be diluted before it can be released into the environment. Therefore, two containers of waste solution are separated by a semipermeable membrane and pressure is applied to one
asked by Jonah 
HCS/212
7. Have you personally or professionally noticed any changes in the way health care information or services are researched or accessed? Explain your response. 8. Are you finding that there is an increase or a decrease in options for finding or researching
asked by Heather 
English
1.) We hung makeshift curtains in our room using (1point) A. Bed sheets. B. Old Curtains. C. New Curtains. 2.) Which of the sentences below is punctuated correctly? A. I opened the door and my cat ran outside. B. I opened the door, and my cat ran outside.
asked by amber 
American History
After 1815 travel was greatly improved by all of the following Except: a.) Construction of canals that made shipping of goods faster and less expensive b.)by 1820 a national railroad network that encompassed over 150,000 miles of railroad had developed
asked by Cameron 
chemistry
Finding out if the amount of heat produced depends on an increase in the concentration of Hcl
asked by Silence 
hiv/aids management)
given the constraints of budgets and time,schools are advised not to educate children on health and nutrition.Do you agree with the statement?justify your answer(25marks)
asked by kelly t 
History/English
what does anti colonialist movements outside of america have to do with segregation?
asked by david 
Math
How to figure out 4x+9=1234
asked by Molly 
chemistry
Finding out if the amount of heat produced depends on an increase in the concentration of Hcl
asked by Silence 
math
How do I solve these for x? 1) 1+2log5x=7 2) logaX=3/2loga9+loga2
asked by Keyshia 
math
solve for x a) 9^x+1=3^4x+5 b) 7^x=25
asked by amy 
english.
3. Read the following stage directions from the end of Act 2 of The Diary of Anne Frank. [For a second ANNE stands looking up at PETER, longing for him to kiss her. As he makes no move she turns away. Then suddenly PETER grabs her awkwardly in his arms,
asked by Anonymous 
hiv/aids management)
discussthe history of hiv/aids,and development and the spread of hiv/aids virus global
asked by kelly t 
Physics
When you jump upward, your hang time is the time your feet are off the ground. Does hang time depend on your vertical component of velocity when you jump, your horizontal component of velocity, or both? Defend your answer. Please help!!! Thank you in
asked by Chris 
socials
what is the capital of canada
asked by ryle 
Physics
To combat wasteful habits, we often speak of “conserving energy,” by which we mean turning off lights, heating or cooling systems, and hot water when not being used. In this chapter, we also speak of “energy conservation.” Distinguish between these
asked by Chris 
microeconomics
If aggregate demand for a product is Qd = 600 – 20P and supplys Qs = 304 + 12P, what would be (1) the equilibrium price and (2) the equilibrium quantity? Also (3) prepare a well calibrated graph illustrating Qd and Qs. Placeprice on the vertical axis and
asked by nando 
science
a 100 pound life guard dives underwater to save a 150 pound person who is drowning the life guard will be able to lift the person to the surface because a:the buoyant force acts as an upward force on the person b:the force of gravity is less in water c:the
asked by jj 
Math
i need an example problem using log10E=11.4+1.5m when E means radiated energy and m is means magnitude. the log has a base of 10 that's why the 10 is there. please help!!! Again, need an example problem relating it to earthquakes
asked by Marissa 
community development(hiv/aids management)
"effective leadership of a community that is dominated by one religion cannot be undertaken by a leader or a team that is of a different religion".Do you agree with this statement?justify your answer.(25marks)
asked by kelly t 
math
one company charges $6.95 per shirt plus a setup fee of $43. Another company charges $8.40 per shirt plus a $58 set up fee. for what number of shirts would the total be the same?
asked by Anonymous 
math
Compound Interest Question James has 10,000 to invest. If he invest money in a savings account that pays 4% APR, calculate the following: a) how long will it take to have a total of 15,000 if interest is compounded quarterly (3months)? b)how much will he
asked by martha 
population,poverty and human development(hiv/aids
"the larger a population,the higher the levels of poverty'.Do you agree with statement?justify your response.25marks
asked by kelly t 
Calculus
Given the function: f(x) = x^2 + 1 / x^2  9 a)find y and x intercepts b) find the first derivative c) find any critical values d) find any local(relative) extrema e) find second derivative f) discuss the concavity g) find any inflection points Please show
asked by Gabby 
english.
“[R]emembering the rhythm” and “backs of buses” both contain examples of (1 point) alliteration. stanzas. rhyme. onomatopoeia. 2. Choose the option that corrects the sentence below. If the sentence is correct, select “d. The sentence is correct."
asked by bella 
math
there is a 20% chance that it will snow on tuesday and a 50% chance that it will snow on Wednesday. what is the probabilty that it will snow on either day?
asked by j 
Physics
An trapdoor is 0.91 m square, has a mass of 11 kg, and is hinged along one side with a latch on the opposite side. If the center of mass is located 0.1 m toward the hinged side from the center, what are the magnitudes of the forces on the latch and the
asked by Ben 
chem
For the following combination of reactants, enter the formulae of the products in the space provided and give their states. (Separate multiple products with a comma ",". Type your answer using the format Na2SO4(aq) for Na2SO4(aq). Do not balance the
asked by sarah 
math
In a class of 50 students, 35 are Democrats, 17 are business majors, and 6 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing a Democrat or a business major.
asked by Kaitlyn 
College Algebra and Number Theory
SETS Let S1, ... , Sn be sets satisfying the following condition: Sj ¡ö Sj+1 for all 1 ¡ i ¡ n  1. Find S1 ¡û S2 ¡û¡¦ ¡ûSn and S1 ¡ú S2 ¡ú ¡¦ ¡ú Sn
asked by Carol 
trigonometry
Peter has three sticks measuring 19 inches, 23 inches, and 27 inches. He lays form a triangle. Find the measure of the angle enclosed by the 19 inch and 23 insides to the nearest degree.
asked by Anonymous 
Eng B
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main? A. What (time) did he call? B. Do you know what the (owl) signifies? C. Deliver the (goods) soon, or else D. The recipe calls for one pint of (cream).
asked by Jen 
English
1. If you are filled with anticipation about an event, you are (1 point) ***looking forward to it. planning to avoid it. hoping to delay it. 2. Read the following excerpt from Sky: We finally reached Enkhuizen, an ancient harbor town, where the brisk wind
asked by kate 
hiv/aids management)
explain in no more than 500 words the history of the development and spread of the HIV/AIDS globally
asked by kelly t 
Calculus
Consider the function f(x)=4(x−3^2/3. For this function there are two important intervals: (−‡,A) and (A,‡) where A is a critical number. Find A
asked by Ryan 
english.
1. Read the following stanza from “Alone”: Lying, thinking Last night How to find my soul a home Where water is not thirsty And bread loaf is not stone I came up with one thing And I don’t believe I’m wrong That nobody, But nobody Can make it out
asked by ashley 
science
a boat weights 10,000 newtons what is the magnitude of buoyant force acting on boat in the fliud
asked by jj 
St Micheal
72 identical square tiles how many tiles are there along the length and width of the rectangle give two pairs of possible values
asked by LaL 
algebra
linear equations 100.5y+1.5x and y=0.5(6x+40)
asked by mag 
PreAlgebra
x+8/7  x+3/7
asked by Wendy 
physis
A ball of mass 80kg falls from rest from a height of 100m.neglecting air resistance, calculate it K.E after falling a distance of 30cm
asked by john 
Biology
In lactic acid fermentation, ______ is _______ a) lactate...oxidized b) pyruvate...reduced c) ethanol...oxidized d) NAD+...oxidized e) NADH...reduced
asked by Wendy 
physics
A ball hands on a string in the bus from the rearview mirror. Once the driver hits the gas pedal, and while he accelerates, the ball no longer hangs straight down, but instead make an angle è of 15 degrees with respect to the vertical. How fast is the
asked by NEW HERO :) 
chemistry
The temperature of an ideal gas in a 5.00 L container originally at 1.01 bar pressure and 25 °C is lowered to 220 K. Calculate the new pressure of the gas.
asked by Kat 
Eng B
1. When author Sarah Orne Jewett Writes That Sylvia Lives “hart to Heat” with nature, she means that the young girl A. Mistrusts her “dream of love.” B. Operates on instinct. C. It, literally, a woodland creature. D. Is most alive in the
asked by Jen 
ACCT 2100
The bookkeeper for Andy’s Country Music Bar went insane and left this incomplete balance sheet. Andy’s working capital is $95,000 and its debt to assets ratio is 40 percent. Required: Complete the balance sheet by supplying the missing amounts. (Round
asked by Jimmy D 
math
between 8pm and 9pm the station broadcasts 8 min of commercials. What is the ratio of commercial time to noncomercial time during the hour? would it be 13:15
asked by jill 
math
ms kim is assigning each student in her class one of the fifty us states on which to write a report. What is the probability that jan will be assigned one of the 5 states that has a coastline on the pacific ocean? express the probability ratio as a
asked by jill 
Chemistry
Hydrogen bromide gas, a polar covalent compound, is very soluble in water. Describe what happens, referring to intermolecular forces, as the hydrogen bromide dissolves. Diagrams may be helpful in your explanation. Please, I need help with this question for
asked by DK 
PreAlgebra
x+8/7  x+3/7
asked by Ms. Sue Please Help (Sandy) 
Geometry
How do u find the lateral area of a 3sided 1based triangle with a slant height of 7 and a height of 5?
asked by jes 
Math
James has 10,000 to invest. If he invest money in a savings account that pays 4% APR, calculate the following: a) how long will it take to have a total of 15,000 if interest is compounded quarterly (3months)? b)how much will he have after 7yrs if interest
asked by martha 
calculusiii
Let S be the part of the sphere x^2 + y^2 + z^2 = 25 that lies above the plane z = 4. Let S have constant density k. (a) Find the center of mass. (b) Find the moment of inertia about the zaxis.
asked by Anonymous 
chemistry
how many grams of CO are needed to react with an excess of Fe2O3 to produce 201.1 g Fe? Fe2o3(s) + 3CO(g) > 3CO2(g) + 2Fe(s)
asked by daniele 
chemistry
if 8.00 mol of NH3reacted with O2 how many moles of H2O will be produced? 4NH3(g) + 7O2(g) > 4NO2 + 6H2O(g)
asked by daniele 
Chemistry
If 10.5 g of hydrogen,H2, were mixed with 6.51 g of acetylene, C2H2, and allowed to react according to the following equation, what is the theoretical yield of ethane, C2H6, produced? If 7.00 g of ethane, C2H6, were recovered at the end of the reaction,
asked by C.M. 
Corporate Finance
Your firm is looking at 3 projects, each costing $500,000: A is estimated to save $125,000 per year for 5 years; B is estimated to save $75,000 for 6 years plus generate tax savings of $20,000 per year; C is estimated to save $75,000 per year for 10 years
asked by Brad 
math
I am a rectangle one side length is 1.4 yards. My area is 9 square yards. What is the length of my other side?
asked by anonymous 
business math
8. At TelePower Plus, longdistance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call
asked by angela richardson 
ap chemistry
We drop 50.5 grams of magnesium into 572 mL of a 3 M HCl solution. What is the maximum volume of dry hydrogen that could be produced by this reaction at STP?
asked by Anonymous 
economics
Help me reword this?? The Fed is organized as a corporation, owned by its member banks, and directed by a governmentappointed board. Monetary policy affects the size of the money supply and the level of interest rates. The first "tool" of monetary
asked by casandra 
Calculus
Find dy/dx by implicit differentiation for x^2  2xy + y^3 = C
asked by Jade 
science
How many grams of water, H(subscript 2)O, and propene, C(subscript 3)H(subscript 6), can be formed from the reaction of 6.0 g of 2propanol, C(subscript 3)H(subscript 8)O?
asked by rex 
physics
a wheel radius 0.25 m is mounted on a frictionless horizontal axle. the moment of inertia of the wheel about the axis is 0.040. a light cord wrapped around the wheel supports the 0.50 kg of box. the wheel is released from the rest. what is the magnitude of
asked by sam 
chemistry
C3H8(g)+5O2(g)>3CO2(g)+4H2O(l) what reactant is oxidized and which is reduced?
asked by Anonymous 
math
The volume V of a pyramid varies jointly as the area of the 1. ________________________ base B and the height h, and V=24 ft3 when B=12 ft2 and h=6ft. Find B when V=54 ft3 and h=9 ft.
asked by mad 
science
what are the changes of statein which energy is increased
asked by jj 
Math
If a 12ft tree casts a 17ft shadow, what tree height will cast a 28 ft shadow?
asked by Ariel 
Chemistry
A 1.50 L portion of 0.100M sulfamic acid, HSO3NH2, is placed in the bottom of a 10.0 L glass lined stainless steel chamber. A dish containing 17.25g of solid NaNO2 is floated on the acid. A thin open ended U tube containing a pool of liquid mercury is
asked by Suki 
Math
Inductive reasoning please determine the next three numbers in patern 15,5,5/3, 5/9, , , ,
asked by Kimberly 
Quotient
Reasonableness.Lorraine divided 3,270 / 3 = 190.Is lorraines quotient reaonable?explain why or why not.
asked by Lize 
Business Math 110
I really don't get this... I don't see a yearly payment option in table to compare to the yearly in the problem? Mike Reno, age 44, saw an Insurance Solutions Direct advertisement stating that its $500,000 term policy costs $395 per year. Compare this to
asked by Anonymous 
algebra
4x3y=24
asked by andrew 
accounting
Phil Phoenix is paid monthly. For the month of January of the current year, he earned a total of $8,288. The FICA tax rate for social security is 6.2% and the FICA tax rate for Medicare is 1.45%. The FUTA tax rate is 0.8%, and the SUTA tax rate is 5.4%.
asked by ann 
Math
A machine produces a voltage in the following formula V(t) = 300cos(10(pi)x). X is the time in seconds. Graph the function with the restriction 0 < X < 1
asked by Ann 
maths
kindly calculate the amount of money I would have in the bank at the end of 1 year if I invest 56000 at 3%. interest is paid annually
asked by nando 
Algebra
Hearst Castle is 180 miles from Ventura by road. Two coaches leave Ventura at the same time, both heading for Hearst Castle, but one averages 5 mph faster than the other. If the faster coach reaches Hearst Castle half an hour earlier than the slower coach,
asked by Justin 
thermodynamics
If a carnot engine receives heat from a heat source and discharge 1000J to a heat sink at temperature of 27C in each cycle, calculate the heat received and the work performed by the engine in each cycle
asked by hiqk