Questions Asked on
September 16, 2012

math
how many prime positive integers are divisors of 555?
asked by shaun 
Chemistry
Consider the reaction: 2HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2H2O(l) ∆H =  118 kJ Calculate the heat when 100.0 mL of 0.500 M HCl is mixed with 300.0 mL of 0.50 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25 oC and the
asked by Nisah 
math
three consecutive primes are summed. when the sum is squared, the result is 72,361. what is the largest of the three primes?
asked by shaun 
Chemistry
The specific heat of graphite is 0.71 J/g oC. Calculate the energy required to raise the temperature of 1.0 mol of graphite by 1.0 oC.
asked by Nisah 
Organic Chemistry
Draw the most important resonance contributor of the following structure or compound. I'd think that the double bonded carbon would be the most important? Am I right? Thank you! h t t p : / / a c e o r g a n i c. p e a r s o n c m g. c o m / e p o c h  p
asked by MacKenzie 
Chem
Calculate the number of grams of Fe formed when 0.300kg of Fe2O3 reacts. Equation: Fe2O3+CO>Fe+CO2 converted .300kg to 300g Balanced Fe2O3+3CO>2Fe+3CO2 So I started by trying this: 300gFe2O3(1molFe2O3/159.687gFe2O3)...and then I don't know where I
asked by Ezra 
Math
Manohar has total of rs 250 as currency notes in the denomination of rs 20 ,rs10 and rs 5. The ratio of the numbers of rs 20 notes and rs10 notes is 3:4. If he has a total of 24 notes,how many notes of each denomination he has?
asked by Mayank 
Chemistry
The fizz produced when an AlkaSeltzer® tablet is dissolved in water is due to the reaction between sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7): In a certain experiment 1.45g of sodium bicarbonate and 1.45g of citric acid are allowed to react.
asked by M 
psychology
Hormones that regulate the development and functioning of reproductive organs are called ________ hormones.
asked by kbarnes 
maths
A tree stands vertically on a hill side which makes an angle of 15 degree with the horizontal. From a point on the ground 35 meter down the hill from the base of the tree, the angle of elevation of the top of the tree is 60 degree. find the height of the
asked by Geeta negi 
physics
a bullet of mass 7g is fired into a block of wood weight 7kg the block is free to move after the impact , the velocity of the bullet and block is 17 cm/sec. what is the initial velocity of the bullet
asked by d.a.v 
chemistry
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13). I received the correct answer of 3.70E23 atoms. However, I do not know how to do Part C of my question, which asks "Based on your
asked by Kevin 
Math
The perimeter of a pool table is about 7.8m. Four times the length equals nine times the width. What are the dimensions? I need to find 2 equations first. I got 2l + 2w= 7.8 I cant seem to get the other one
asked by Vanessa 
english
2. What is the importance of the concentration camps' goal of removing human spontaneity?
asked by Anonymous 
Chemistry
I have this problem.... Hexane has a density of 0.659 g/ml. How many milliliters (mL) would a student need to pour in order to get 49.5 g of hexane? Am I to solve by using mass = density x volume? And if so, is the answer 32.62mL?
asked by Amanda 
math
anderson will roll two standard six sided dice once. what is the probability that the two numbers rolled will be the same? express your answer as a common fraction
asked by shaun 
Physics
A car traveling 88 km/h is 80 m behind a truck traveling 75 km/h. How long will it take the car to reach the truck
asked by Haleigh 
Chemistry
I've tried to solve this question multiple ways I just can't seem to get it. I just don't understand what I should be doing. An organic liquid is a mixture of methyl alcohol () and ethyl alcohol (). A 0.220 sample of the liquid is burned in an excess of
asked by John 
psychology
Write a 350 to 700word paper that explains which of Erikson’s eight stages of life you believe you are currently in. Explain why you think you are at that stage and describe that stage in your paper. What is the central question posed during that
asked by jean 
math
A kayak moves at a rate of 12 mph in still water. If the rivers current flows at a rate of 5mph how long does it take the boat to travel 23 miles upstream?
asked by ashley 
psychology
Information that is chemically coded is transmitted from one neuron to another via neurotransmitters, terminal buttons, dendrites or axons?
asked by susan 
Chemistry
Octane has a density of 0.692 at 20degree C . How many grams of O2 are required to burn 17.0gal of C8H18 ? Stepbystep explanation much appreciated with as much detail as possible so I can understand. Thanks!
asked by M 
Biology
4) If a person with blood type AB marries someone with type O, what would be the possible genotypes and phenotypes of their children? (show work if you can please)
asked by AAAA 
Math
If a hemispherical bowl of radius 6cm contains water to a depth of h cm, the volume of the water is 1/3πh^2(18h). Water is poured into the bowl at a rate 4 cm^3/s . Find the rate at ehich the water level is rising when the depth is 2 cm.
asked by Marney 
Chem
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.30 g of sodium carbonate is mixed with one containing 3.00 g of silver nitrate. How many grams of each of the
asked by Ezra 
psychology
Is the thalamus located lateral of the temporal cortex or rostral to the cerebellum? Please provide me a link.
asked by susan 
psychology
Does the axon or terminal button transmits information to neighboring neuron? I am confused between the two because they both transmits information. Please provide link to your answer.
asked by susan 
Physics
Wes and Lindsay stand on the roof of a building. Wes leans over the edge and drops an apple. Lindsay waits, 1.25s afrer Wes releases his fruit and throws an orange straight down at 28 m/s. Both pieces of fruit hit the ground simultaneously. Calculate the
asked by Becca 
phys
Find every angle θ between 0 and 360° for which the ratio of sin θ to cos θ is 3.00. (Round your answer to the nearest degree.)
asked by sedef 
physics
An experimental rocket designed to land upright falls freely from a height of 2.88 102 m, starting at rest. At a height of 95.9 m, the rocket's engines start and provide constant upward acceleration until the rocket lands. What acceleration is required if
asked by Anonymous 
Chemistry
CoCl2(aq) + NH3(aq) = ? Cu(NO3)2(aq) +NH3(aq) = ? CuSO4(aq) +NH3(aq) = ? Could some one please tell me what the answers are?? I am stuck... what do I do with the NH3??? Thank you!!!!!
asked by Georg 
Math
how many socks would you need to remove from a drawer containing 10 blue socks, 15 black socks and 5 red socks, to in sure that you have at least 2 matching socks?
asked by Tahmina 
Social sciences
What is the difference between a skewed distribution and a normal distribution?
asked by Marie 
phys
An automobile tire is rated to last for 35,000 miles. To an order of magnitude, through how many revolutions will it turn?
asked by sedef 
math
The united state mint produced 69,360 nickel, 211,000,000 quarters. 634,800,000 pennies. and 120,000,000 dimes order the numbers from greatest to least.
asked by sharon 
math
if two angles are supplementery and one is 48 degrees more than 3 times the other what is the measure of the smaller angle
asked by heidi 
6th grade science
What is porosity and permeability? Thanks
asked by Allison 
Math for liberal arts
A single 6sided die is rolled twice. C. Find the odds in favor of getting 2 numbers whose sum is greater than 5. I would simply like to be shown the steps to work this problem.
asked by KeKe 
physics
meteoroid is speeding through the atmosphere, traveling east at 17.0 km/s while descending at a rate of 11.7 km/s. What is its speed, in km/s?
asked by Ang 
physics
your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle ((r = 15.0 m) as the carousel turns. The coefficient of static friction between the suitcase and the carousel is 0.520, and the angle θ in the
asked by Anonymous 
botany
what is the difference between primary walls and secondary walls in plants. (specifically sclerencyma cells which have secondary and parenchyma and collenchyma  which just have primary walls
asked by sara 
math
Amanda is decorating her new home and wants to buy some house plants. She is interested in three types of plants costing $4, $8, and $20. If she has budgeted exactly $96 for the plants and wants to buy exactly 12 of them, what are her options? Let x be the
asked by Anonymous 
Physics
A skier leaves the end of a horizontal ski jump at 22.0 m/s and falls 3.20 m before landing. Neglecting friction, how far horizontally does the skier travel in the air before landing?
asked by S 
Database
Following report shows a grade report that is mailed to students at the end of each semester. Prepare an ER diagram reflecting the data contained in the Grade Report. Assume that each course is taught by one instructor. MILLENIUM COLLEGE GRADE REPORT FALL
asked by alhaji 
math
a rectangle has length of 28cm and weadth of 12cm.what is the area of the least number of these rectangles used to form te smallest square possible
asked by wan 
Economics
Use supply and demand economic theory and diagram to explain why the prices of houses has changed so much over the last 3 years. I just need topics to use to write about
asked by lala 
chemistry
Water (H20) is a liquid at room temperature and atmospheric pressure whereas hydrogen sulfide (H2S) is a gas under the same conditions. Based on this information, what can you say about the intermolecular interactions in these two substances. So would this
asked by Travis 
social studies
Can you help me compare and contrast liberal vs. conservative ideologies. Also, I need to provide a social and political example argument for each.
asked by Sarah 
Chemistry
What is 6.3 x 10 to the 4th power converted to scientific notation
asked by Kayla 
physics
The earth moves around the sun in a nearly circular orbit of radius 1.50 1011 m. During the three summer months (an elapsed time of 7.89 106 s), the earth moves onefourth of the distance around the sun.
asked by novie 
physics
A bus is moving at 30 m/s when the driver steps on the brakes and brings the bus to a stop in 2.6 s. What is the average acceleration of the bus while braking?
asked by shelby 
English
I am writing two paragraphs about two themes but I can't think of two conclusion sentences. The themes are friendship and sacrifice. Help please? Thanks
asked by Emma 
Geometry
If meaurement of angle DEF=(3x+5) degrees and measurement of angle KLM=(x+31) degrees, and goth angles are complementary to angle PQR, what are the measures of the angles?
asked by Carol 
science
An airplane flies due north at 235 km/h relative to the air. There is a wind blowing at 65 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground?
asked by mary 
Physics
1. 2D motion. A cannon fires a ball with a velocity at 300 MPS. THe cannon has an angle of inclination of 50 degrees. The surface is flat. 1. What is the time of flight? 2. Where does it land? What is its maximum height? What is the velocity vector of the
asked by Thomas 
chemistry
I am stuck in the following in my homework. BaC/2 and Na2CO3 turns different colors when the same indicator is added to each? Why does this happen? How is the ph of each of these different? I have tried on this one and cannot get it. Thanks for our help.
asked by Bob 
chemistry
I am stuck in the following in my homework. BaC/2 and Na2CO3 turns different colors when the same indicator is added to each? Why does this happen? How is the ph of each of these different? I have tried on this one and cannot get it. Thanks for our help.
asked by Bob 
chemistry
I am stuck in the following in my homework. BaC/2 and Na2CO3 turns different colors when the same indicator is added to each? Why does this happen? How is the ph of each of these different? I have tried on this one and cannot get it. Thanks for our help.
asked by Bob 
math
you are a shop owner who wants to market a new hat. the hat distributor will sell you one size at a reduced price. in one day you sell the following sizes: 8 1/4,8 1/2,6,7 1/4,7 1/4, 7,7 1/4,8,6 3/4,8 1/2,7 1/4, 8 1/4, 8 1/4,6 3/4,7 3/4 which size will you
asked by Taylor 
chemistry
Acetone is a common solvent and has a density of 0.7899 g/mL. What volume of acetone, in mL, has a mass of 29.4 g?
asked by khris 
Math
a/(a+2)1 = (3a+2)/(a^2+4a+4)
asked by David 
physics
A player passes a 0.600 basketball downcourt for a fast break. The ball leaves the player's hands with a speed of 8.40 and slows down to 7.20 at its highest point.
asked by inaazrina 
chemistry
how to find percent yield
asked by Anonymous 
Biology/Biotany
the rise of water in plants is presently most satisfactorily explained by which element: magnesium, sulphur, calcium, phosphorus, or manganese?
asked by Mary 
physics
A player passes a 0.600 basketball downcourt for a fast break. The ball leaves the player's hands with a speed of 8.40 and slows down to 7.20 at its highest point.
asked by inaazrina 
Physics
A stone is dropped from the top of a well. If the well is 23.1 meters deep, how long with the stone take to reach the bottom?
asked by Allie 
Financial
assume a $1000 face value bond has a coupon rate of 8.5 percent pay interest semiannually, ahd has an eightyear life. if investors are willingto accept a 10.25 percent rate of return on bonds of similar quality, what is the present value or worth of this
asked by Judy 
precalculus
Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h)  √(2x+1))/h can you check please
asked by jack 
math
P(t) = 1000  19.75t + 20t²  1/3t³, what type of function is it?
asked by zach 
Chelsea
on a farm there are rabbits and chickens. Altogether, there are 20 heads and 50 feet. How many rabbits and chickens are there?
asked by Math 
Math
Find the probability whose odds against are given in the problem. Odds against are 2 to 5.
asked by LaCresha 
physics
A bicycle has a speed of 7.5m/s at 4.3sec and a constant acceleration of 2.6m/s^2. the bicycle is at the origin (on the positive xaxis) when 1.2sec. How far from the origin is the bike at 7sec? Answer in units of m
asked by Emily 
physics
A bicycle has a speed of 7.5m/s at 4.3sec and a constant acceleration of 2.6m/s^2. the bicycle is at the origin (on the positive xaxis) when 1.2sec. How far from the origin is the bike at 7sec? Answer in units of m
asked by Emily 
PSY/310
How has early memory research concerning the growth of cognitive perspectives in psychology changed over the course of the 20th century? What are the reasons for this change?
asked by Diane 
circles
if the distance around the soccer ball is 30 inches what is the radius
asked by ashley 
statistics
Five thousand raffle tickets are to be sold at $10 each to benefit a local community group. The prizes, the number of each prize to be given away, and the dollar value of winnings for each prize are as follows: Prize Number to Be Given Away Dollar Value
asked by peach 
Chem
what is the pH of solution made by mixing 100 mL of 0.030M HCL with 200 mL water?
asked by John 
English 10
Write two derivatives for each spelling word. 1.) Synagogue 2.) Compatriot Any and all all help would be very much appreciated; thank you in advance.
asked by Aradia Megido 
phys
A rectangular plate has a length of (20.0 ± 0.2) cm and a width of (8.3 ± 0.1) cm. Calculate the area of the plate, including its uncertainty.
asked by sedef 
cell &molecular bio
Using the EinsteinStokes equation, calculate the time for urea to diffuse across a cuboidal kidney cell with sides of 100micrometers. Assume the diffusion coefficient (D) of urea in solution is 2 x 10^8 m2 sec 1
asked by Amy 
Statistics
The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Using the Chebyshev's theorem, determine the minimum percentage of women in Canada whose life expectancy is between 64 and
asked by Cyndee 
readind
Which is the best way to learn new material? A. Consistently study the same way. B. Review notes every day. C. Use techniques that appeal only to your preferred learning style. D. Use techniques that appeal to all three learning styles.
asked by alex 
math
It is estimated that one third of one per cent of the Earth’s surface receives more energy from the sun than the total projected needs for the year 2014. Assuming the Earth’s surface to be 1.97 x 108 square miles. Find the area in acres.
asked by david 
Algebra
Word Problems (Addition/Elimination Method). Check if my answers are correct. 1.A girl bought 2 CDs and 3 DVDs for $92. Each DVD costs $4 more than the CDs. What is the price of each CD and DVD? My answer: CDs $16 and DVDs$20 2.A boy bought 20 stamps,
asked by Amy 
Linguistically & Culturally Diverse Learners
In order to promote language acquisition in beginning language learners, teachers should require students to speak, even if only one or twoword phrases. (Points : 1) True False
asked by Anonymous 
Physics
A hot air balloon containing an AP Physics student ascends vertically at a constant speed of 8 m/s. While ascending, he accidentally drops his rubber duckie from the gondola of the ballong. Seven seconds after it is dropped the duckie bounces off a roof at
asked by san 
math evaluatge expression
for c = 8 and d = 7 c (d) i got : 8(7) = 56 is this right?
asked by marko 
Chem
How many moles of ammonium ions are in 8.794g of ammonium carbonate? I got .1832 as an answer and I was told that I was very close and I just may have done some kind sigfig or calculation error but I have no idea what it is since I did this problem so many
asked by Ezra 
Physics
A monkey is hanging from a branch located exactly 24 meters along the ground from the hunter. The monkey is 14 meters above the ground. The hunter aims directly at the monkey and fires a water balloon at the monkey just as the monkey releases his grip. The
asked by kris 
math
Suppose a license plate requires three letters ,followed by three digits.how many license plates are there if the letters are all different and the digits are all different
asked by nancy 
Sociology
I'm trying to double check my answers. These are the answers I believe to be correct. Please let me know if I am right or wrong. Thank you. . Networking has (Points : 1) a) Increased in importance b) Rely upon electronic communication c) Rely upon personal
asked by Tammy 
Physics
The diagram below shows two vectors, A and B, and their angles relative to the coordinate axes as indicated. DATA: α= 45.9o β= 57.6o A = 7.9 cm. The vector A  B is parallel to the x axis (points due West). Calculate the magnitude of the vector A+B. I
asked by jameson 
Physics
The electron gun in a television tube is used to accelerate electrons with mass 9.109 × 10−31 kg from rest to 3 × 107 m/s within a distance of 2.4 cm. What electric field is required? The funda mental charge is 1.602 × 10−19 C. Answer in units of
asked by Anonymous 
statistics
The following is the tabulated data of the monthly commissions of the sales employees at La Verne Inc. Establish the frequency distribution. Present the data in a histogram format, draw the frequency polygon and the ogive (or cumulative polygon)
asked by ed 
Health and Nutrition
What is a complete protein?
asked by toya 
literary
I need an example of connotation from the Star Wars series in the form of a quote.
asked by Brittany 
chemestry
what is the final temperature of aluminum when 26.4 cal of heat is added to 18.1 g of aluminum at 21.0 degrees c
asked by bekki 
Maths
If X=(2+√5)1⁄2 + (2√5)1⁄2 and Y=(2+√5)1⁄2  (2√5)1⁄2 ,the evaluate x^2+ y^2
asked by Gulshad Khan 
math
How many fourdigit numbers divide by 5 ? Note:0001 is considered a 1digit number .
asked by nancy 
Physics
A speeder passes a parked police car at a constant speed of 24.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.45 m/s2. How much time passes before the speeder is overtaken by the police car?
asked by Reneé 
Physics
A speeder passes a parked police car at a constant speed of 24.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.45 m/s2. How much time passes before the speeder is overtaken by the police car?
asked by Reneé 
science
a jet travels at 435m/s how long to travel 11.4 inchs?
asked by Anonymous 
math
How many seven  digit numbers less than 1,048,000 can be made using the digits 0,1,4,6,7,8 and 9
asked by sharon 
geography
Will you please check my answers? 1. What continents are located on a single land mass? Antarctica and Australia 2. In what direction would you be going if you were to fly from South Dakota to North Carolina? Southeast 3. In what part of the United States
asked by Reed 
math
How many seven digit numbers leads than 1,048,000 can be made using digits 0,1,4,6,7,8 and 9
asked by sharon 
geometry
whats the value of each variable (7x27)(4x+12)
asked by Diana 
chemistry
joules needed to melt a 525 g ice cube at 0 degree C and to warm the liquid to 15 degrees C (two steps please show work)
asked by rachel 
marh
Tenecia is thinking of a number with 8 place values the digit in the thousands place is 5 the digits in the hundred thousands and hundreds place are both an odd number greater than 7. The digit in each other place value is less one less than the digit in
asked by sharon 
math
nora has 1,555 on her computer .She rounds this number to the nearest ten ,to the nearest hundred,and to the nearest thousand . she gets three different rounded numbers. What are the numbers? why are there three different answers?
asked by JALEEN 
English
Hello! I'm writing a story for English class, and it's supposed to be somewhat like 'the devil and Tom walker'. I'm don't know how I should start the story so could someone maybe give me some ideas? (: The main character is Lilith Thompson. The setting is
asked by Tamiyah 
6th grade science
A topographic map would be most useful for which activity? A. locating the name of the road where your friend lives B. finding out how much rainfall your town receives each year C. finding the highest point in your city D. determining what kind of soil is
asked by some girl 
education
Read the following scenario: You are a secondgrade teacher at Happy Valley Elementary School. You are teaching language arts and social studies. Your classroom of 21 students consists of 7 white students, 5 Latino students, 4 African American students, 3
asked by kristin 
6th grade science
What is a A topographic map used for? thanks
asked by Allison 
precalculus/check please
Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h)  √(2x+1))/h can you check please
asked by jack 
Math
Can you please give me an example of a solution step? Thanks.
asked by Emma 
science
if a rock undergoes high temperatures and high pressures deep within Earth, what new type of rock will be foremed? Assume that the rock does not melt
asked by kaylyn 
math
1How many three digit numbers are even? 2how many three digit numbers are not even and do not divide by 5 ?
asked by nancy 
math
What are the Next two numbers in the pattern below? 999,800;999,900; 1,000,000;1000,100
asked by sharon 
Algebra
A car dealer will sell you a used car for $5709 with $709 down and payments of 233.75 per month for 24 months. What is the simple interest rate? Rounded to the nearest tenth.
asked by Sue Jackson 
chemistry
is resistant to corrosion physical or chemical
asked by rachel 
Chemistry
Camphor (C10H16O) has a heat of combustion of 5903.6 kJ/mol. When a sample of camphor with a mass of 0.124 g is burned in a bomb calorimeter, the temperature increases by 2.28 oC. Calculate the heat capacity of the calorimeter.
asked by Nisah 
Physics
Suppose a brick has a mass of 4.50 kg. What is the brick's weight at the surface of the Earth
asked by Anonymous 
6th grade science
Is latitude the up and down lines on a map?Or the side to side lines? Thanks
asked by Allison 
math
i am less than one million.The number in the left most place is a 9. The numbers in each place to the right is 2 less than the previous number.I have no ones.What number am i?
asked by joshua 
Math
find the quotient show your work 9x^225y^2/3x+5y
asked by Lynn 
Physics
The magnitude of vector is 18.0 units and points in the direction 345° counterclockwise from the positive xaxis. Calculate the x and ycomponents of this vector.
asked by Kayla 
math
An example of: Ratio of a to b
asked by emma 
Physics
In deep space (no gravity), the bolt (arrow) of a crossbow accelerates at 187m/s^2 and attains a speed of 114m/s when it leaves the bow. For how long is it accelerated? Answer in units of m/s What speed will the bolt have attained 2.8 sec after leaving the
asked by Emily 
chemistry
How many moles of ammonium ions are in 8.794g of ammonium carbonate? I've tried this multiple times but some reason, I can't quite get the answer. If someone can show me stepbystep how to go about this problem, I'd really appreciate it.
asked by M 
Physics
A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car
asked by Hanu 
Calc
The region bounded by y=2.5x^2 and y=4x is to be rotated about both axes and the volume generated calculated by both the washer and the shell methods. 1)The volume of the region bounded by y=2.5x^2 and y=4x, when rotated about the xaxis is? 2) The volume
asked by l 
upland
arrange 3/4, 1 1/6, 10/13, 1 1/3, 67/100 from smallest to largest
asked by aaron 
Math
If b varies directly as the square root of w and b equals a negative 24 when w equals 36, what is w when b is equal to 1/8?
asked by Trey 
6th grade science
What two parts of the earth system is a paleontologist involved in? Thanks
asked by drama queen 
Math
angle 2 =(4x + 4) angle 1  2x what is x
asked by Dawson 
physics mechanics
A block weighing 17 N oscillates at one end of a vertical spring for which k = 120 N/m; the other end of the spring is attached to a ceiling. At a certain instant the spring is stretched 0.24 m beyond its relaxed length (the length when no object is
asked by abu 
Physical Chemistry
Calculate the pressure and temperature at which 1.00 mole of CO gas will be in the same corresponding state as 1.00 mole of H2 gas at 2.00 bar and 30.0 degrees celsius. Use any critical constants necessary for both gases.
asked by Anonymous 
math
what is the least natural number that has exactly four distinct positive factors?
asked by shaun 
physics
a person weights 550 N rides a bike. the pedals move in a circle of radius 30 cm. if the entire wt acts on each downward moving pedal, what is maximum torque
asked by Liz 
math
what is the least natural number that has exactly five distinct, positive factors?
asked by shaun 
physics
a uniform meter stick is balanced at its midpoint with a single support. a 50 N weight is suspended at the 30 cm mark. at what point must a 20 N weight be hung to balance the system
asked by Liz 
math
what is the sum of the two least natural numbers that each have exactly six distinct,positive factors?
asked by shaun 
Physics
A batter hits a baseball at an angle of 30 degrees with the horizontal. The ball is hit at a height of 2 m and leaves the bat with a speed of Vo. What is the minimum Vo for the ball to clear the outfield fence? The fence is 5 m high and located 60 m from
asked by Eric 
geometry
find the value of each variable (6y16) (4y+6)
asked by Diana 
Calculus
Find the volume of the solid generated by revolving the region bounded by the line y=5x+6 and the parabola y=x^2 about the following lines: a) the line x=6 b) the line x=1 c)the x axis d) the line y=36 Thanks!
asked by h 
physics
A body moving with uniform acceleration has a velocity of 11.1cm/s when it's coordinate is 3.59cm. If it's x coordinate 2.48sec later is 3.58cm, what is the xcomponent of it's acceleration. Answer in units of cm/s^2
asked by Emily 
physics
A vector has a magnitude of 17.6 cm and makes an angle of 150.0° with the positive xaxis. What are the x and ycomponents of this vector?
asked by Bob 
accounting
. For each of the following cases, prepare adjusting entries required of financial statements for the year ended (date of) December 31, 2011. (Assume that prepaid expenses are initially recorded in asset accounts and that fees collected in advance of work
asked by loly 
Physics
While warming up in her tryout as a pitcher for the Montwood softball team, Anabel Parga throws a softball horizontally with a speed of 22m/s. a. If home plate is 19m away, how far should the softball fall from its initial straightline path on its way to
asked by sam 
math
how many 1/3 inch ribbons can be cut from a piece of ribbon that is 4 and 1/3 inches long?
asked by kelsey 
environment
The ideal study plan includes which of the following? A. Quality preparation. B. Use of as much different intelligence as possible. C. Both A & C. D. An elaborate study environment.
asked by alex 
Geometry
if EF=2x10 FG=3x9, and EG=21 find the value of x, EF, and FG
asked by Amanda 
Math HELP!!!
If there is 60 pages I'm printing but I print it front and back how many pages will be. PLEASE HELP!
asked by Laruen 
Physics
A car starts from rest and accelerates uniformly over a time of 5.21 s for a distance of 110 m. Determine the acceleratin of the car
asked by Latryce 
Predicates
What is the predicate in this sentence? Steel is an important metal for buildings and tools.
asked by Traci 
math
Ling bought 5 dishes and 9 glasses for $25.50. Each glass cost 50¢ cents more than each dish. How much did Ling spend the glasses
asked by Chris 
Algebra
factor completely 20x^212x+56
asked by Yerxa 
physics
A sky diver of mass 68 kg jumps from a slowly moving aircraft and eventually reaches her terminal velocity 46m/s Now consider the same sky diver jumping out of a faster airplane. At some point before she reaches her terminal velocity, she has velocity v2
asked by kat 
physics
A particle moves in the xy plane with constant acceleration. At time zero, the particle is at x = 9 m, y =6 m, and has velocity vo =(4.5 m/s)i + (−4 m/s)j. The acceleration is given by a = (6 m/s2)i + (1 m/s2)j. What is the magnitude of the displacement
asked by kat 
Social St.
What are the three important consequences that the Neolithic Revolution had brought to humans?
asked by S. 
math
f(x)=xxx+4 what is f(x+h)  f(x) divided by h
asked by mike 
science
why barium comnpounds are toxic
asked by lance 
physics
A stone is dropped into a river from a bridge 43.3 m above the water. Another stone is thrown vertically down 1.06 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?
asked by Anonymous 
study tips
I need study tips.By the way I'm home schooled.
asked by drama queen 
literacy
scholarly journal articles are written by
asked by Anonymous 
math
Selena is making cookies. To make one dozen cookies, she needs 2/3 cup of brown sugar. How many cups of brown sugar does Selena need to make 4 1/3 dozen cookies?
asked by kelsey 
math
Eva invested a certain amount of money at 5% interest and $1500 more than that amount at 17%. Her total yearly interest was $750. How much did she invest at each rate?
asked by Taylor 
7th grade math
Which of these statements is true when you add a positive, nonzero integer and a negative, nonzero integer? A)The answer may be positive or negative. B)The answer is always negative. C)The answer is always zero. D)The answer is always positive.
asked by Lauren 
geography
Can you check my answers? 1. Locate the Gulf of Aden off the eastern coast of Africa. Now, write a definition of a gulf? A gulf is a part of an ocean or sea that extends into land. 2. What lines measure distances east and west of the Prime Meridian?
asked by Reed 
Accounting
. Classify the following items as (a) an addition to the bank balance, (b) a subtraction from the bank balance, (c) an addition to the book balance, or (d) a subtraction from the book balance: _____ $20 in service charges _____ A $300 check deposited that
asked by Tiffany 
phy
A jet has a speed of 500m/s relative to the air in which it flies and is traveling north. There is a crosswind blowing from west to east at 100m/s. What compas heading does the plane appear to fly toward?
asked by anne 
Chemistry
When 47.3J of heat are added to 13.0g of a liquid, its temperature rises by 1.76C. What is the heat capacity of the liquid?
asked by Eliza 
math
A girl delivering newspapers travels 2 blocks west, 1 blocks north, and then 7 blocks east. (a) What is her resultant displacement? _________ blocks at __________ 2 ° counterclockwise from east. (b) What is the total distance she travels? __________
asked by Dakota 
circles
if spoke of the ferris wheel is 20 feet long what is the circumference
asked by ashley 
college algebra
to travel 132 miles it take sue riding a moped 2 hours less time then it takes doreen to travel 56 miles riding a bike. sue travels 15 miles per hour faster then doreen find the time and rates
asked by john 
math
What is another way of saying 27 m/s east?
asked by Dakota 
Economics
Use supply and demand economic theory and diagram to explain why the prices of houses has changed so much over the last 3 years. I just need topics to use to write about
asked by lala 
circles
if the circumference is estimated c=3*d and the exact circumference is c=pi*d what would be the radius and the diameter
asked by gissell 
prealgebra
A football team gained 4 yd, lost 2 yd, gained 11yd, lost 8 yd, and then lost 9 yd. Find the net gain or loss.
asked by emily 
Physics
A large kite of mass 3 kg is flying through the air on a windy day. Currently, the tension from the string on the kite has a magnitude of 7.7 N at an angle of θ = 33.5 degrees. The current acceleration of the kite has a magnitude of a = 7.56 m/s2 at an
asked by Ashley 
chemistry
It takes 62 mL of 0.124 M KOH to neutralize 46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter
asked by cheri 
Math
How do i figure out this question? There are two roads, one has a grade of 20% the other has an elevation of 15 degrees. Which road would be steeper?
asked by Aj 
Sociology
What is writing analysis???? Because I saw this in my Program of Studies book for middle school and high school students. Sociology This onesemester sociology course introduce students to the field by engaging them in discussion and written analysis of
asked by Laruen 
chemistry
What mass of MgSO4 · 7H2O is required to prepare 300 mL of a 0.61 M MgSO4 solution? Answer in units of g
asked by cheri 
Math
suppose that W is a set which has 255 proper subsets. Determine the cardinality of w
asked by Dakota 
statisitcs
suppose you got 75 items corrct on a 100item, six alternative, multiplechoice exam what would your score be after we corrected for guessing?
asked by jt 
Chemistry
28.5g of iron shot is added to a graduated cylinder containing 45.50mL of water. The water level rises to the 49.10mL mark. From this information, calculate the density of the iron.
asked by claire 
management of business
what is a joint venture? what are the sources of finance for joint ventures? describe the appropriateness of the legal structure and some problems associated with changing from one legal structure to the other ...what are some advantages and disadvantages
asked by kerry j 
chemistry
How many milliliters of 5.5 M HCl must be transfered from a reagent bottle to provide 23 g HCl for a reaction? Answer in units of mL
asked by cheri 
Physics
. The cheetah is the fastest running animal in the world. Cheetahs can accelerate to a speed of 20 m/s in 2.5 an can continue to accelerate to reach a stop speed of 29 m/s. Assume the acceleration is constant until the stop speed is reached and is zero
asked by Chris 
pre  algebra
maria had $123 she spent $35,loaned $20 to a friend and received her $90 paycheck how much does she have now? so you would do 123 20=103 and then 103  20=83 and 83 + 90 =wich is 173 so that would be the answer right?
asked by emily 
7th grade math
What is the difference? 9  13 =? A)22 B)4 C)4 D)22
asked by Lauren 
Physics
A person walks 13.9◦ north of east for 2.51 km. Another person walks due north, then due east to arrive at the same location. How far due north would this person walk? How far due east would this person walk?
asked by Shay 
Physics
A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car
asked by Hanu 
Chemistry
Please can someone answer this right now for me? What is the purpose of adding conc. HCL to the solution after cyclohexene has been oxidised by KMnO4 in the reaction of Cyclohexen + KMnO4 +H2O.
asked by Elie 
Physics
A person walks 13.9◦ north of east for 2.51 km. Another person walks due north, then due east to arrive at the same location. How far due north would this person walk? How far due east would this person walk?
asked by Shay 
physics
A soccer ball is kicked from the ground with an initial speed of 14.5 m/s. After 0.272 seconds, ts speed is 12.4 m/s. (A) Give a strategy that will allow you to calculate the ball's initial direction of motion. (B) Use your strategy to find the initial
asked by Mima 
Smoke Signals English
has anyone seen movie smoke signals? i doing english project on it, need little help
asked by Mohammad 
calculus
An Open Box Of Maximum Volume Is To Be Made From A Square Piece Of Cardboard Twentyfour Inches On Each Side By Cutting Equal Suares Frm The Corners And Turning Up The Sides
asked by ciara 
math 1321
what is the digit in the ones place of the solution to 3^63
asked by delia :) 
physics
A 980 kg car is pulling a 275 kg trailer. Together, the car and trailer have an acceleration of 2.12 m/s2 in the forward direction. Neglecting frictional forces on the trailer, determine the following (including sign).
asked by Anonymous 
Biology
3) Caucasian humans have a gene which determines the curliness of hair. Individuals with straight hair are homozygous for the straight allele while those with curly hair are homozygous for the curly allele. Heterozygotes have wavy hair. a) If two wavy
asked by AAAA 
physics
A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, what is the distance traveled by the car before it comes to rest?
asked by Lorraine 
Math
Manohar has total of rs 250 as currency notes in the denomination of rs 20 ,rs10 and rs 5. The ratio of the numbers of rs 20 notes and rs10 notes is 3:4. If he has a total of 24 notes,how many notes of each denomination he has?
asked by Mayank 
Fractions
A 161/2ft wire is cut into 8 pieces of equal length how long is each piece
asked by Tam 
Physics
I need major help with this please!!! On a safari, a team of naturalists sets out toward a research station located 6.9 km away in a direction 42° north of east. After traveling in a straight line for 2.1 km, they stop and discover that they have been
asked by Rachel 
chemistry
Calculate the molality of acetone in an aqueous solution with a mole fraction for ace tone of 0.171. Answer in units of m
asked by cheri 
Physics
The velocity vector of a sprinting cheetah has x and ycomponents vx = +12.6 m/s and vy = 27.2 m/s. What angle does the velocity vector make with the +x and −yaxes?
asked by crystal 
math
sue walks 3km at2km/h while Adrian walks 2km at 4km/h.Who walks furthest?
asked by wan 
College physics
The magnitude of vector is 40.0 units and points in the direction 315° counterclockwise from the positive xaxis. Calculate the x and ycomponents of this vector.
asked by Anonymous 
Physics
You and your friend throw balloons filled with water from the roof of a several story apartment house You simply drop a balloon from rest. A second balloon is thrown downward by your friend 2.1seconds later with an initial speed of 41.6m/seconds. they hit
asked by Kimberly 
math
my age now is one third of mum's age.8years ago,i was a fifth of mum's age was at that time.how old will my mother be 8 years from now
asked by wan 
chemistry
How many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of su crose is 0.1? Answer in units of g
asked by cheri 
Math
Men in Black II grossed $19,821,658 on 3557 screens on the opening Friday. If theaters are open from noon to midnight, have 15 minutes in between showings, and average $6 a ticket for the 82 minute movie, find the average number of people who attended each
asked by Latoya 
Science
Can someone please help me solve this homework problem for my chemistry class.Thanks A 4.0*10^1kg sample of water absorbs 308KJ of heat. If the water was initially at 25.5 C, what is its final temperature?
asked by Eliza 
chemistry
Your team performed replicate analyses of a sample and obtained an average 18.54 mM concentration with a relative standard deviation of 4.0%. If you later discover that a systematic error was made by a factor of 2 and the mean concentration should have
asked by kkk 
english
The letter is written by Max. I have to identify the simple & complete subject and verb in this sentence. Along with the verb. I am very confused.
asked by elizabeth 
SCI207
Inplace fossil fuel resource statistics can be misleading because
asked by Joanie 
Physics
If gravity was zero how would that effect the mass of an object? The weight?
asked by Jay 
history
Does a propaganda poster have to be opposing the cause? for example, propaganda poster for the 2012 elections Would this work... If i made some kind of propaganda poster to make people want to vote for Obama? (like some vote for obama propaganda
asked by bob 
physics
what did galileo state about the motion of objects?
asked by Jay 
calculus 2
Can anyone help me calculate this? 28. lim x→∞ (e^x + 1)^(1/)x
asked by Anonymous 
Physics
A quarterback makes a pass, throwing the ball at 21 m/s and an angle of 60° above the horizontal. A) What is the maximum height of the ball in flight? B) How long does it take to complete the pass? C) How many yards (yd) does he manage to throw the ball?
asked by Katharine 
Physics
In order to open tha clam it catches, a seagull will drop the clam repeatedly onto a hard surface from high in the air until the shell cracks. if a seagull flies to a height of 16.4m, how long will the clam take to fall? The acceleration of gravity is
asked by Linda 
Voiting and apportionment
Suppose the modified quota is 5.87. Whate is the lower quota? what is the upper quota? Find the arithmetic mean of lower and upper quotas. Find the geometric mean of upper and lower quotas.Round the given modified quota by comparing it with arithmetic mean
asked by Sue Jackson 
Physics
A quarterback makes a pass, throwing the ball at 21 m/s and an angle of 60° above the horizontal. A) What is the maximum height of the ball in flight? B) How long does it take to complete the pass? C) How many yards (yd) does he manage to throw the ball?
asked by Katharine 
Physics
In order to open tha clam it catches, a seagull will drop the clam repeatedly onto a hard surface from high in the air until the shell cracks. if a seagull flies to a height of 16.4m, how long will the clam take to fall? The acceleration of gravity is
asked by Linda 
Physics
A lighthouse that rises h = 50 ft above the surface of the water sits on a rocky cliff that extends 19 ft from its base, as shown in the figure. A sailor on the deck of a ship sights the top of the lighthouse at an angle of θ = 28.0° above the
asked by Kabe 
maths
Give an example of a function whose domain is {2,5,7} and whose range is {1,0,3}?
asked by fatima 
ap
A sample of air contains 38.5 ìg/m3 of beryl lium dust. How many atoms of beryllium are present in a room with dimensions of 8 feet by 12.9 feet by 17.1 feet? Answer in units of atoms
asked by cheri 
Chemistry
Can someone please help me solve this homework problem for my chemistry class.It's my last problem and I'm stuck!:/ Thanks :) A 4.0*10^1kg sample of water absorbs 308KJ of heat. If the water was initially at 25.5 C, what is its final temperature?
asked by Eliza 
math
Draw a model to represent the following quotient 2 1\2 / 2\3
asked by kelsey 
ENGLISH
In which of the following sentences is the underlined word an object pronoun? A. I would like you to listen to me. B. You really should apologize to her. C. We returned our books to the library. D. I gave her a gift for her birthday.
asked by AWESOME 
physics
Two masses M1 = 3.00 kg and M2 = 7.50 kg are stacked on top of each other as shown in the figure. The static coefficient of friction between M1 and M2 is μs = 0.520. There is no friction between M2 and the surface below it
asked by Kylie 
Statistics
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables: LOCATION (Rural, Urban,
asked by Angela 
ap chem
A sample of 7.45 grams of NaOH is dissolved into 609 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.18 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in
asked by cheri 
physics
The earth moves around the sun in a nearly circular orbit of radius 1.50 1011 m. During the three summer months (an elapsed time of 7.89 106 s), the earth moves onefourth of the distance around the sun.
asked by novie 
geometry
Y is a point on HR with HO=(19x) miles and OR=48 miles. If HR=(27x) miles, find HO (in miles)
asked by sam 
pre calculus
are you an online tutor
asked by reese 
math
3r/4=1/3 what is r please explain
asked by jake 
Chemistry
My question is 'what does the area under the curve represent?' it's a MaxwellBoltzmann curve. My first idea was the number of particles but that's just what the y axis says and surely that wouldn't just mean under the curve. My second idea was to write
asked by George 
physics
Which has the greater acceleration, a car that increases its speed from 50 to 62 km/h, or a bike that goes from 0 to 12 km/h in the same time?
asked by shelby 
physics
A car is traveling 15 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 8.0 m/s2. How far does the car go before it stops?
asked by shelby 
algebra
2/5+6
asked by Anonymous 
physics
The record for a marathon is 4 h, 36 min, 21 s. The marathon distance is 90.25 km. Determine the average speed in m/s of a runner achieving this record.
asked by shelby 
Biology
why do certain cells contain more of certain structures than do others
asked by Lulu 
math
A softball team wins 5/8 of their 32 games. How many games did they win? How many did they lose?
asked by Anonymous 
Physics
An object with a mass of 3kg is dropped from 56.3 meters. How far above the ground is it's kinetic energy 1073J?
asked by Allie 
College Algebra
Solve each equation. If an equation has no solution, so indicate. (no complex #) a  1 = _ 3a + 2 a+2 a2 + 4a + 4 reads: a over a+2 minus 1 equals 3a+2 over a2 (a squared) + 4a + 4
asked by Colby 
Physics
Air molecules create an upward force that impacts the free fall of objects on the surface of the Earth, differing form the way an object would fall in vacuum. Question: What kind of objects should be used for experimentation if we want to limit the impact
asked by Joan 
physics
A passenger on a moving train tosses a coin with an initial velocity of (2.25 m/s) + 4.68 m/s) (from the point of view of the passenger). The train's velocity relative to the ground is (11.5 m/s). (a) What is the minimum speed of the coin relative to the
asked by maria 
chemitry
what does it mean by how many moles of the limiting reactants in sodium bia
asked by jane 
Physics
The leg and cast in Figure P4.18 weigh 290 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 125 N. Determine the weight w1 and the angle α needed in order that there be no force exerted on the hip
asked by Anon 
Math
A manufacturing company is thinking of launching a new product. The company expects to sell $950,000 of the new product in the first year and $1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect
asked by Joplin 
physics
A passenger on a moving train tosses a coin with an initial velocity of (2.25 m/s)x unit vector + 4.26 m/s)y unit vector (from the point of view of the passenger). The train's velocity relative to the ground is (11.5 m/s)x unit vector. (a) What is the
asked by grace 
desh bhagat
a bullet of mass 7g is fired into a block of wood weight 7kg the block is free to move after the impact , the velocity of the bullet and block is 17 cm/sec. what is the initial velocity of the bullet
asked by garry deol 
math
Name 2400 in two different ways
asked by Anonymous 
Calculus
find an equation of the line tangent to the equation at the given point. f(x)=5x^2 at x=10
asked by Jake 
statistics
Each year, approximately 160 colleges compete in the National Concrete Canoe Competition. Each team must design a seaworthy canoe from a substance not know for it's capacity to float. The canoes must weigh between 100 and 350 pounds. Find the midrange
asked by Tamika 
science
Na and K have low ﬁrst and high second ionization potentials, whereas Mg and Ca have low values for both ﬁrst and second potentials. These observations suggest that
asked by alex 
Chemistry
After 1.78 years, 1.990 g of a radioisotope remains from a sample that had an original mass of 2.000 g. Calculate the halflife of the isotope.
asked by Rachel 
foundation physics
A player passes a 0.600 basketball downcourt for a fast break. The ball leaves the player's hands with a speed of 8.10 and slows down to 7.20 at its highest point.Ignoring air resistance, how high above the release point is the ball when it is at its
asked by wani 
calculus *improper integrals*
A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2  r^2) dH where R^2 is the exterior surface area and r^2 is the
asked by John 
Physics
A stone is aimed at a cliff of height h with an initial speed of v = 60.0 m/s directed 25.0° above the horizontal, as shown in the Figure below by the arrow. The stone strikes at A, 4.30 s after launching. What is the height of the cliff?
asked by jameson 
chemistry
I am stuck in the following in my homework. BaC/2 and Na2CO3 turns different colors when the same indicator is added to each? Why does this happen? How is the ph of each of these different? I have tried on this one and cannot get it. Thanks for our help.
asked by Bob