Questions Asked on
September 24, 2012

science
why does the change for the atomic radii of the elements in period 3 look similar to period 2?
asked by rachel 
Calculus
Given Z = 2(cos 148° + isin 148°) and W = 5(cos 11° + isin 11°), find and simplify z/w. 10(cos 137° – isin 137°) 0.4(cos 137° + isin 137°) 0.4(cos 137° – isin 137°) 10(cos 137° + isin 137°)
asked by batmo 
Chemistry Check
A thermocouple was calibrated to give Celsius temperature. In the ice bath the voltage reading was 0.250 V, and in boiling water at 736 Torr the reading was 1.20 V. Derive the conversion equation between Volts and temp. C. So if I'm working this right, it
asked by Sarah 
Chemistry
A gas can holds 1.5 of gasoline, what is this quantity in cubic centimeters? answer using two significant figures,
asked by Hanna 
Calc 1
I need help solving for this final problem to complete my assigment. Please help! Solve for x: ln(x^4)ln(x^2)=2
asked by arcos15 
english
Identify which one of the following sentences is missing punctuation. Please correct the error and explain why the correction is necessary. a. I woke up when the book slipped from my lap and landed on my foot. b. After the book slid from my lap and landed
asked by lisa 
social problems
analyzing cultural traits and items. kinds of foods and eating patterns differ in other cultures. for ex. in many parts of the world people use only their right hand to eat. investigate an area of the world in which you are interested and compose a report
asked by donnie 
Calculus
I need help solving for this final problem to complete my assigment. Please help! Solve for x: ln(x^4)ln(x^2)=2
asked by arcos15 
Physics(Please help, thank you)
Using a force table the direction and magnitude had to be found for the following measurements: F1 = 200 grams at 30 degrees; F2 = 200 grams at 120 degrees The magnitude and direction found was 280 grams at 257 degrees. Using the magnitude and direction of
asked by Hannah 
chemistry
Describe how you would prepare 10 mL each of 2 M, 1.5 M, and 1 M NaCl solutions from a 2 M stock NaCl solution. Describe your actions–exactly what you woulddo–stepbystep–when preparing thissolution. Also show all calculations. Be sure all amounts
asked by Debbie 
Chemistry
Calculate the energy in calories lost when 30.0 ethanol, , cools from 56.5 degree Celsius to 42.0 degree Celsius.
asked by Dru 
chemistry
[correction]Calculate the energy in calories lost when 30.0 grams of ethanol cools from 56.5 degree Celsius to 42.0 degree Celsius.
asked by Dru 
math
exam rose from 20.8 to 21.1 what percent increase was this nearest to the tenth?
asked by erica 
chemistry
What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
asked by danyae 
chemistry
What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
asked by danyae 
Physics
A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block. Assume that the upper
asked by Oyster 
math 116
week 5: self check answers
asked by lisa 
Social studies
What does "the Pyramids" refer to in Egypt? How many pyramids are called 'the Pyramids'?
asked by rfvv 
physics
calculate the impulse to stop a 1500kg car moving 90kmper hours
asked by master 
chemistry
how many grams of NaOH should be used to make 200 mL of a 0.24M solution of NaOH starting with a .4M HCL solution
asked by tera 
physics
A ball is dropped from rest off a 27 m building.What is the maximum speed that the ball will reach?
asked by Brayden 
chemistry
Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.
asked by Debbie 
precalculus check immediately
suppoe f is a function with domain [1,3]and range[2,5]? define functions g and h by g(x)=3f(x)and h(x)=f(4x) what is domain and range of g what is domain and range of h I solved it and got it like this domainof g=[1,3]and range of g=[3,9] Domain of
asked by fatima 
Health
Help needed Who might be responsible for abuse in clients with dementia?
asked by jessica 
Physics
A stone is dropped from the roof of a high building. A second stone is dropped 1.51 later. How far apart are the stones when the second one has reached a speed of 12.6 ?
asked by Amie 
Physics
A person who is properly constrained by an overtheshoulder seat belt has a good chance of surviving a car collision if the deceleration does not exceed about 30 "'s". Assuming uniform deceleration of this value, calculate the distance over which the
asked by Amie 
algerbra
24+61+b+3a+b+3d How do you do this?!
asked by Mary 
physics
A boy is sledding down a slope that is inclined at 30.0° with respect to the horizontal. A moderate wind is aiding the motion by providing a steady force of 108 N that is parallel to the motion of the sled. The combined mass of the boy and sled is 53.6
asked by simon 
physics
if an egg is thrown at an initial height of 1.9m and lands 2.09s later at 19m what is the velocity at which the egg was thrown and the velocity with which it lands
asked by megan 
English
A: I'm very hungry. B: Let's go to the restaurant then. (In this sentence, what is the use of 'the' before 'restaurant'? Does it refer to the specific restaurant or is 'the' used in generic usage?)
asked by rfvv 
maths
30% of the tshirts on a shelf are small. 40% of the remainder are large and the rest are medium. There are 240 more meduium than small tshirts. How many tshirts are there altogether?
asked by joel needs help urgently 
maths
1. After J spent 3/7 of his money and M spent 1/3 of his, they both had the same amount of money. If J had $408 less than M at first, how much money had M left? 2. 1/4 of the amount of water in a small fish tank is equal to 1/2 a pail. If the tank contains
asked by joel needs help urgently 
science
I need 2 examples of suspensions and solutions used in households, industries, agriculture and medicine.
asked by Fany 
art
can we use the line and painting markers and pencil all together
asked by artisticone 
physics
HELP!!!A pitcher throws a 0.5kg ball of clay at a 6kg block of wood. The clay sticks to the wood on impact and their joint velocity afterwards is 3m/s. What is the original speed of the clay? I know the answer is 39m/s but I have no idea how they come up
asked by tiffany 
differential equations
Suppose the fraction of a cohort of aids patients that survives a time t after aids diagnosis is given by S(t) = exp(kt). show that the average survival time Taver after aids diagnosis for a member of this cohort is given by Taver= 1/k. show every steps
asked by fatih elmali 
physics
A snowmobile is originally at the point with position vector 31.5 m at 95.0° counterclockwise from the x axis, moving with velocity 4.29 m/s at 40.0°. It moves with constant acceleration 1.82 m/s2 at 200°. After 5.00 s have elapsed, find the following.
asked by hhh 
physics
A snowmobile is originally at the point with position vector 31.5 m at 95.0° counterclockwise from the x axis, moving with velocity 4.29 m/s at 40.0°. It moves with constant acceleration 1.82 m/s2 at 200°. After 5.00 s have elapsed, find the following.
asked by hhh 
Chemistry
Carbon14 has a halflife of 5730 years In a plant fossil you find that the 14 C has decayed to 1/8 of the original amount how long ago was this plant
asked by Shay 
chemistry
How long would it take to melt a 400 lb.block of ive at a temperature of 55 degrees
asked by sandi 
Math
I need some help solving this equation. 8x+44x=x14
asked by Aaron 
chemistry
how to balance a complicated chemical equation.explain with a example.tell me a shortcut to balance complicated chemical equation.
asked by J.Nandhini 
Algebra
In 2007, Donald's stock portfolio decreased in value by 25%. In 2008, his stock portfolio decreased in value by another 40%. What percentage gain is required in 2009 for Donald's stock portfolio to return to the value it had in the beginning of 2007?
asked by Amanda 
,xsccmbd
80 moicro farad capcitor is connected to 220 volt battery it is then disconnected and connected uncharged capacitor of 360 micro farad what is the charge of the uncharged capacitor
asked by Anonymous 
physics 2
A long wire carries a current of 1 ampere.Find the magnitude of the magnetic field 2 meter away from the wire.
asked by ace 
math
what is 7 divied by 48.93 =
asked by kamriana 
math
Alottery has 100 tickerts which are placed in a barrel . Three tickets are drawn at random from the barrel to decide 3 prizes . If john has 3 tickets in the lottery , determine his probability of winning : A.first prize. B.first and second prize. C.all 3
asked by katy 
asdfds
a car is speeding up and has an instantaneous velocity of 6.0 m/s in the x direction when a stopwatch reads 10.0 s. it has a constant acceleration of 1.5 m/s^2 in the x direction until the stopwatch 12.0 s. how far does it travel during this time interval?
asked by Anonymoussdfs 
chemistry, i need helppp like a.s.a.p!!!!
What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m
asked by danyae 
chemistry, i need help like a.s.a.p!!!!
What is the density of a block of unknown material with a mass of 19.07 g if the dimensions are: length = 3.1 cm height = 1.9 cm width = 4.6 cm
asked by danyae 
chem
have 0.0114 mole of Cu(OH)2 (s) a gelatinous precipitate. After heating, and converting all of it to CuO(s) wash the solid as a means of purifying it. How much (in g) should you have of CuO at this point? do you just convert 0.0114 moles cu(OH)2 to grams
asked by ANON 
english
State what kind of term, such as mathematical, scientific, political science, history, etc. 1. ideological 2. constructivist 3. Marxist 4. Vector 5. axiomatic 6. azimuth 7. Matrix 8. hypothesis 9. theory 10. phenomena
asked by Micah Crabb 
Math
Suppose that X is binomial (4, 0.5), find P[X>2] Would the answer be 0.5?
asked by Mike 
Houston community college
A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The
asked by Abraham 
Physics
A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The
asked by Abraham 
Co
1774 divided by 6
asked by Anonymous 
world civilization
. How did the institutions of family and clientage and the establishment of patrician and plebian classes contribute to the stability of the early Roman Republic?
asked by lashay 
Chemistry
What is the reactant when sugar is mixed with water? Also, what is the product?
asked by Jeb 
world civilization
Why did the Romans and the Carthaginians clash in the First and Second Punic Wars? Could the wars have been avoided? How did Rome benefit from its victory over Carthage? What problems did this victory create?
asked by lashay 
world civilization, need help A.S.A.P!!!
What social, economic, and political problems did Italy have in the second century B.C.E.? What were the main proposals of Tiberius and Gaius Gracchus? What questions about Roman society did they raise? Why did the proposals fail?
asked by lashay 
Economics
Hi, please help me with this econs question! thanks! I'm asked to sketch the average and marginal cost curves of a software company, in which when it first starts up, the costs are extremely high. (High start up costs, millions of dollar spent to make the
asked by audrey 
Chemistry
For the unbalanced reaction: FeSO4 (s) → Fe 2O3 (s) + SO2 (g) + O2 (g) ; how many total moles of gas are produced from the decomposition of 9.98 mol FeSO4 (s)?
asked by Misha 
physics
A football player is running at a speed of 9m/!@#$%^&s the goalpost and comes to a stop in 0.050 sec. Calculate his acceleration and compare it with that of gravity.
asked by Anonymous 
American History
As passed by the Congress after McKinley delivered his war message to Congress, the declaration of war against Spain was modified by the Teller Amendment, which stipulated that A. the United States wouldn't annex Cuba. B. trade with Spain would continue as
asked by bessie 
world civilization
How was Roman society different after the struggle ended? during the 5th century
asked by lashay 
American History
Which of the following statements is most accurate regarding America's political climate between 1876 and 1896? A. The influence of the president over Congress diminished. B. Southern states tended to vote Republican. C. Little political power or influence
asked by bessie 
Physics
If it takes 2.37 seconds for a stone to hit the ground from a cliff. (a) From what height was the stone dropped from? (b) What is the stones final velocity when it hits the ground?
asked by Sammy 
Science chemistry
It takes 1 hour and 17 min. for a 1.000gsample of a certain isotope to decay to 0.121g. What is the halflife of this isotope? plssss helpp
asked by Shay 
economic
explain the importance of the following terms in the u.s. free enterprise systerm;(A) profit motive, (B) voluntary extange, (C) private property rights, and (D) compition
asked by jacky 
finance
You annually invest $1,500 in an individual retirement account starting at the age of 20 and make the contributions for 10 years. Your twin sister does the same starting at age 30 and makes the contributions for 30 years. Both of you earn 7 percent
asked by gary 
MathStats
An insurance company charges its policy holders an annual premium of $200 for the following type of injury insurance policy. If the policy holder suffers a "major injury" resulting in lengthy hospitalization, the company will pay out $15,000 to the injured
asked by Jillian 
Math
a factory has a machine which bends wire at a rate of 8 units of curvature per second. how long does it take to bend a straight wire into a circle of radius 5?
asked by James 
World History
It's believed that the role of feasts in the Ice Age was to?
asked by Taylor 
Math
If it costs $75 to install 40 feet of fencing, how much does it cost to fence a rectangular garden that measures 12 feet by 16 feet?
asked by Rox 
Physics
Using Tcharts A marble it dropped from a stair well that is 4.3 m high. (a) How long will the marble be in the air for? (b) What speed will it be traveling at as it hits the ground?
asked by Sammy 
US Government
Dicuss two influences on the development of the U.S. Constitution. Explain how two of the items you identified influenced the specific content of the Constitution.
asked by batmo 
Chemistry
What does it mean if the percent of sulfate in a sample of alum is greater that the theoretical percent of sulfate in alum?
asked by Thomas 
statistics
An insurance company charges its policy holders an annual premium of $200 for the following type of injury insurance policy. If the policy holder suffers a "major injury" resulting in lengthy hospitalization, the company will pay out $15,000 to the injured
asked by Jillian 
chemistry
if you are exposed to all sources of radiation from natural sources and human activities (worldwide average). How many years would it take for you to absorb a fatal dose of radiation plss help
asked by Shay 
literature
Where is Hrothgar leading the warriors at the beginning of Episode Seven?
asked by anonymous 
Adult Education
Choosing to blow the whistle on your employees or coworkers can create all kinds of legal, ethical, and career complications. Here are five common workplace scenarios that will challenge employees about whether or not they should go public with potentially
asked by bessie 
Mad percent of CuS and Cu2S in an ore sample
Suppose an ore sample contains 11.01 % impurity in addition to a mixture of Cu2S and CuS. Heating 102.5 g of the mixture produces 74.90 g of solid which is 88.18 % copper. What is the mass percent CuS in the ore?
asked by Rose Bud 
English
Which word in the set below carries a neutral connotation? confounded puzzled muddled bamboozled I'm thinking its puzzled. Thanks for the help.
asked by Anonymous 
math
A student take in 2,300 calories and burns 2,500 calories. find the net change
asked by Amanda 
early childhood literacy
1.preschoolers use private speech to: 2.words are: 3.is gluing a writing skill: 4.is cutting a writing skill: 5.the first language arts skill that c hildren learn is: 6.what are words: 7.let me in said the pin.this is an example of: mr. rogers wants to
asked by lisa 
chemistry
which element is liquid @ 25.0c and 1 atmosphere pressure?
asked by shiri 
Art Northern European Renaissance
Match with the correct word 1. The Renaissance coincided with dog 2. Van Eyck's paintings lack any reference to this eating 3. Brueghel’s detailed portraits of daily life are called the Protestant reformation 4. The people he liked to paint peasants 5.
asked by Debra Wrinkle 
Chemistry
Find the thetrical formula for .012 mol of H20, .0056 moles of Cl2 and .0060 of copper with a formula like this CuCl*H20 *=point in center
asked by Brett 
writing/puncutation
I wrote this need someone to check make sure grammar and punctuation is ok! Thanks! Having a high school diploma is very important to my future. I will no longer feel ashamed, because I was never able to finish my schooling. I will be able to work towards
asked by Gabby 
Calculus
Find the intervals on which the given function is increasing and decreasing. y=x^22x y'=2x2 critical point x=1 Increasing [infinity,1) Decreasing (1,infinity] is this the correct way of writting this wiht the brackets
asked by kieran 
Psychology
What am I suppose write about when I am asked to describe my selfconcept? Note: Do NOT just give a link to the definition. I know what it means already.
asked by Ana 
PreAp Physics
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.65 km/s at an initial inclination of 41.9◦ to the horizontal. The acceleration of gravity is 9.8 m/s 2 . How far away did the
asked by Maria 
PreAp Physics
To win the game, a place kicker must kick a football from a point 17 m (18.5912 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 15 m/s at an angle of 58.9 ◦ from the
asked by Maria 
math
an object released from rest will fall 16t^2 feet, t seconds after it is dropped. 2 pebbles are dropped, one after the other, from a cliff that is 64 feet high. the 2nd pebble is released the instant the first pebble has fallen exactly one foot. how far
asked by dan 
physics
A model sailboat is slowly sailing west across a pond at 0.342 m/s. A gust of wind blowing at 28.7° south of west gives the sailboat a constant acceleration of magnitude 0.305 m/s2 during a time interval of 1.87 s. If the net force on the sailboat during
asked by Liz 
PROJECTILE MOTION
A ball is thrown horizontally from the top of a cliff 50m high with a velocity of 7m/s. How far from the base of the building does the ball land. This is what I think is how you do the question(Please correct me if I am wrong). y=vt+.5a(t)²
asked by Booker Perry 
college physics
new planet is discovered orbiting a distant star. Observations have confirmed that the planet has a circular orbit with a radius of 21 AU and takes 118 days to orbit the star. Determine the mass of the star. State your answer with appropriate mks units.
asked by Joe 
college physics
Although astronauts appear weightless, they are not. They only appear weightless because they are in free fall. If a 79 kg astronaut is orbiting Earth with an orbital radius of 5.31×107 m, determine how much the astronaut would weigh. Earth's mass is
asked by Joe 
college physics
A new planet has been discovered that has a mass onetenth that of Earth and a radius that is onesixth that of Earth. Determine the free fall acceleration on the surface of this planet. Express your answer in the appropriate mks units.
asked by Joe 
math
There are 9 players on each basketball team in a league. Explain how you can find the total number of players in the league if there are 30 teams.
asked by conner 
biology12 HELP ASAP TEST TOM
For each given word start with the wor and put the rest in order appropriately> RIBOSOME> golgi complex, vesicale food to be digested, rough er, lysosome put in order MITOCHONDRIAN> muscles use energy, energy made , carboydrate and oxygen
asked by john 
math
I am a number between 50 and 60.One of my factors is 28.What number am I?
asked by bob 
medical records
how important is having the ability to read medical charts and reports? Why can abbreviations in charts be a cause of concern? How would you ensure that your staff and other health care professionals are proficient in medical abbreviations and terminology?
asked by Joanna 
chemistry
It takes 1 hour and 17 min. for a 1.000g sample of a certain isotope to decay to 0.121g. What is the halflife of this isotope? plssss helpp
asked by Shay 
Literature
If an author is skillful at representing the point of view and attitudes of a hobo, a nurse, a corporate CEO, and a variety of other diverse characters, the author is demonstrating A. dramatic irony. B. first person reporting. C. negative capability. D.
asked by Sara Beth 
Literature
In The Call of the Wild, when London writes about "what a puppet thing life is," it reflects the theme summarized in which of the following statements? A. Our lives are lived in response to our predetermined fate. B. Each life pits mercy against nature. C.
asked by Sara Beth 
General Chemistry
Which chemical reactions would you consider to be of importance to a healthcare professional and why?
asked by Tamara 
PreAp Physics
During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.65 km/s at an initial inclination of 41.9◦ to the horizontal. The acceleration of gravity is 9.8 m/s 2 . How far away did the
asked by Maria 
Chemistry
1. What is the minimum volume of hot water needed to dissolve 0.200g phenacetin? How much phenacetin will remain in that volume of water once it cools? 2. Why is it important that all the solid dissolves in the hot solvent, before the solution is cooled?
asked by Cassie 
algegra
$16 added to an amount of money saved, s, then spend equally on 3 items
asked by Charly 
chest shot
does a chest shot of someone mean a picture that is chest up?
asked by jamma 
math
multiply using mental math 25*400=
asked by conner 
English
I feel stupid for not knowing these but I can't figure it out! So in the sentence we have "underline the verb be (and its various forms) and decide how it's used. Circle the verb its helping or linking to and Write linking verb or helping verb on the line"
asked by Carly 
chemistry
The safe level of radon gas at home is 4X10e12 Ci/L or less. If you measure radon levels in the basement what is the maximum number of Ci that could be safe to find in a basement with dimensions of 12 ft x 15 ft x 6 ft?
asked by Shay 
MaTh
An empty truck weighs 2000 kg. After the truck was loaded, freight made up 80% of the weight of the loaded truck. At the first stop one fourth of the freight was unloaded. What percent of the loaded truck's weight did the load make up after that? (Hint:
asked by meepolo 
MaTh
Michal has 42 identical cubical blocks, each one with an edge of 1 cm. From all of these blocks, he built a rectangular prism with a base perimeter equal to 18 cm. What is the height of the prism which he built?
asked by meepolo 
Theatre history
What are the possible orgins of Electra subject matter, are there any plays using the same subject matter, if so how do they differ ?
asked by renee 
math 176
X squared minus  6xy + 9y squared  4z squared
asked by zubair 
Englishpoetry
I am doing a poetry analysis of John Clare's "IAm!" I need help identifying the emotional/logical climax and the fulcrum of the piece. I have identified its metaphors, similes, imagery, censuara, allusions, repetition. Am I missing something? Here is the
asked by Jonathan 
math
Find three consecutive odd integers whose sum is 33.
asked by breanna 
physics
A model rocket is launched from rest with an upward acceleration of 5.50 m/s^2 and, due to a strong wind, a horizontal acceleration of 1.50m/s^2 . How far is the rocket from the launch pad 7.20 later when the rocket engine runs out of fuel?
asked by katelin 
Math
Yolanda and Yoko ran in 100 yd dash. When Yolanda crossed the finish line, Yoko was 10 yd behind her. The girls then repeated the race, with Yolanda starting 10 yd behind the starting line. If each girl ran at the same rate as before, who won the race? By
asked by Math >,< 
advanced math
solve: 2/y+2 = 3/y=y/y+2
asked by mae 
Chemistry
Calculate the molarity of a 100. mL solution containing 22.3 g of sucrose (C12H22O11)
asked by Mariah 
real estate financing
If the interest rate on a $250,500 loan is 6½ percent for a term of 30 years, what is the principal and interest (PI) payment for the first month?
asked by kathey 
math
What phrase is used to describe a rhombus? A. a parallelogram with four congruent angles B. a parallelogram with four congruent sides C. a rectangle with four congruent sides D. a quadrilateral with no congruent sides Thanks!
asked by luv history 
english
Which of the following choices best describes the error in this sentesce? The man is a scientist with a keen sence of observation and who dedicates long hours in the lab. A Misplaced modifier B Fragment C Dangling modifier D Uneven parallelism I chose D
asked by jerry 
math 176
please detail all the steps for x squared minus 6xy plus 9y squared minus 4z squared
asked by zubair 
Algerba 1
I have to put these intergers in order from least to greatest. 12, 6, 20, 47, 11 I didn't do well on my last test. I am really trying to figure this out. my answer is 6, 11, 12, 20, 47
asked by Cuyler 
ant 101
A “hope chest” is a form of: (Points : 1) *brideprice. bridewealth. dowry. brideservice.
asked by jason 
World Geo
Why is New Zealand considered part of Polynesia? Thanks for any and all help!!! ☺ sk8rgurl99
asked by sk8rgurl 
social studies
The nearest river to my hm. I live in the Midwest.
asked by melynda 
early childhood literacy
when children do print alphabet letters,among the easiest to print are:
asked by lisa 
math
whats the value of the 5 in 752,034
asked by paul 
Physics
My professor tells me I'm not using the right formula for this problem. can someone please help me. The formula is not delt p = density x gravity x height The mercury manometer on the right and the pressure transducer on the left are both connected to a
asked by Angel 
Chemistry
At 298K and 1bar pressure, the density of water is 1.00 g/cm^3 , Cpm = and 75.3 J/Kmol. The change in volume with temperature is given by delta V = ViB(deltaT), where B, the coefficient of thermal expansion, is 2.07 * 10^4 K^1. If the temperature of 350g
asked by Danielle 
Square Roots
1. Which two square roots are used to estimate the square root of 5? 2. Estimate the value of the square root of 43 to the nearest integer. 3. An estimate for the negitive square root of 66 is?
asked by Jamin 
Math
tiffany will us a total of 63 tiles for her art project she only needs 17 more tiles use mental math to find how many tiles she has already
asked by Phyllis 
psychology
__________ serve as the cytoskeleton of the brain. They support the function of neurons by insulating, repairing, and nourishing them.
asked by Lashay 
trig
A boat is 23 mi due west of lighthouse A. Lighthouse B is 14 mi due north of lighthousenA. Find the bearing of lighthouse B from the boat and the distance from lighthousenB tho the boat.
asked by Pcwest 
Math
A used bookstore sells paperback fiction books in excellent condition for 2.50$ and In fair conditions for 0.50$. Write an expression for the cost of buying (e) excellent condition paperback and (f) fair condition paperback.
asked by Carly 
trig
A boat is 23 mi due west of lighthouse A. Lighthouse B is 14 mi due north of lighthousenA. Find the bearing of lighthouse B from the boat and the distance from lighthousenB tho the boat.
asked by Pcwest 
business
which laws do you think appear to have the greast impact on marketing? why?
asked by Anonymous 
Math
Writing to Explain If you start with an unbalanced scale and add the same amount to each side, what happens to the scale?
asked by Ryan 
Geometry
The surface area of the sides of a right cylinder can be found by multiplying twice the number pie by the radius times the height. If a circular cylinder has radius (r) and height (h), write an expression that represents the surface area of its size.
asked by Carly 
writing
I have been trying to work on this assignment and I am not really understanding it and I try to get help from my teacher and she keeps sending me this and telling me when I do this she will help me with the rest but I don't understand this and I have told
asked by Wayne 
math
I am the smallest 2 digit odd number whose digits add to 2. i look the same backward and forward and so does my square product. my square product is a 3 digit number. what number am i and what is my square product?
asked by hailey 
Physics
The drawing shows an exaggerated view of a rifle that has been ‘sighted in' for a 91.4meter target. If the muzzle speed of the bullet is v0 = 392 m/s, there are the two possible angles θ1 and θ2 between the rifle barrel and the horizontal such that
asked by Shannon 
Physics
A diver springs upward from a board that is 4.40 m above the water. At the instant she contacts the water her speed is 14.0 m/s and her body makes an angle of 68.8 ° with respect to the horizontal surface of the water. Determine her initial velocity, both
asked by Shannon 
Spanish Beg. 1  Help!!!!!!!
From the worksheet  The map below shows part of the flight route of Aerolineas Argentinas, the Argentine airline. The capital cities are marked on the map, but the country names are not. Write the name of each country on the map. â€¢ Managua â€¢
asked by Laruen 
Math 8R  Help!!!!
Travis painted for 6 2/3 hours. He received $27 an hour for his work. How much was Travis paid for doing this painting job?
asked by Laruen 
Science 8R  Homework Check
Convert the following values: 1. 5 cm = 50 mm 2. 2000 m = 2000. cm 3. 1 m = 1000. mm 4. 15 m = 1500. cm 5. 1 m = 10 cm Are my answers are correct??????
asked by Laruen 
science
An object has a mass of 10 grams and a volume of 5cm3 calculate the objects density
asked by santriese 
math
In a study of the change of insect population,there was about 170 insects four weeks after the study began and about 320 after two more weeks. Assume an exponential model of growth. a.Find an equation relation the population to the time in weeks.
asked by alyssa 
Reading
Is the book KICKOFF! by Tiki & Ronde Barber with Paul Mantell Fiction or nonfiction?
asked by kyle 
Geometry
Three line segments have the following measure AB=6, BC=3, and AC=8. What conclusions can you draw about points A,B and C?
asked by chan 
please help in math homework
x squared minus 6xy plus 9y squared minus 4z squared
asked by Zubair 
Trig
Two ships leave the same port at 7.am. The first ship sails towards europe on a 54 degree course at a constant rate of 36 mi/h. The second ship,neither a tropical destination, sails on a 144 degree course at a constant speed of 42 mi/h. Find the distance
asked by Pcwest 
math
on a whiteboard show how to estimate 399+147. draw a number line as needed
asked by mythreyee 
Physics
A person weighing 0.6 kN rides in an elevator that has a downward acceleration of 2.3 m/s^2. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of the force of the elevator ﬂoor on the person? Answer in units of kN
asked by sam 
Physics
The tension in a string from which a 6 kg object is suspended in an elevator is equal to 61 N. What is magnitude of the acceleration a of the elevator? The acceleration of gravity is 9.8 m/s^2. Answer in units of m/s^2
asked by sam 
physics
A student bikes to school by traveling first d_N = 0.900\rm {miles} north, then d_W = 0.600\rm {miles} west, and finally d_S = 0.100\rm {miles} south.
asked by lauren 
math
What would be the simplest form of these numbers?:7/12,8/21,14/35
asked by stephanie 
Math
Janet has a pink blouse, a red blouse and a white blouse. She has a pink skirt, a red skirt, a black skirt and a white skirt. How many combinations could she make? My answer is 12 combinatinos. I multiplied 3 blouses times 4 skirts
asked by Jerryl 
Doe
A car traveling at 6.7 m/s accelerates 2.1m/s2 to reach a speed of 12.0 m/s. How long does it take for this acceleration to occur? Answer in units of s
asked by Jane 
Physics
When a 117 N bag of nails hangs motionless from a single vertical strand of rope, how much tension is exerted in the strand? Answer in units of N
asked by sam 
Math  Quadratic Factor
can someone explain how to do this problem, please. 6x^2 + 13x +2 + 0
asked by jake 
Physics
A large uniform chain is hanging from the ceiling, supporting a block of mass 48kg. The mass of the chain itself is 15 kg, and the length of the chain is 2.6 m. The acceleration of gravity is 9.81 m/s^2 Find the tension in the chain at the point where the
asked by sam 
chemistry
What happens if you attempt to recover CaCO3 by adding 3M H2SO4 instead of 3M HCI to a Si)2/CaCO3 residue?
asked by Anonymous 
physics
two rock are thrown off the edge of a cliff one is thrown horizont at a speed of 25 m s the other dropped straight down. which stone will hit the ground first? why?
asked by Anonymous 
Statistics
Suppose that P(A) = 0.69 P(B) = 0.57 P(AB) = 0.35. Find the conditional probability that B occurs given that A occurs. Round your answer to 3 decimal places.
asked by Meeeep 
Physics
A boat moves through the water with two forces acting on it. One is a 2304N forward push by the motor on the propeller, and the other is a 2154N resistive force due to the water around the bow. What is the acceleration of the 1293kg boat? Answer in units
asked by sam 
chemistry
large and small number are most easily handle when expressed in
asked by wa 
skills for sucess
Jenny has a part time job and her net takehome income is $2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries.
asked by dee 
Earth Science
determine the slope of an area, given the following: Start measuring at 700ft. measure a distance of 4 miles, and end at an elevation of 2432ft
asked by Anonymous 
Math
Alex scored 13 points in the basketball game. This was 1/5 of the total points the team scored. Write and solve an equation to determine the total points t the team score.
asked by rachel 
arithmetic
jane says that 546 can be represented by 53 tens and 16 ones. Is she correct? Elain
asked by antonio 
Physics
How long does it take an automobile traveling 74.3 km/h to become even with a car that is traveling in another lane at 58.3 km/h if the cars’ front bumpers are initially 114 m apart? Answer in units of s
asked by Brandon 
Physics
a 96.4kg boxer has his first match in the canal zone with gravitational acceleration 9.782m/s^2 and his second match at the north pole with gravitational acceleration 9.832m/s^2. What is his mass in the canal zone? answer in units of kg
asked by sam 
spanish
can u unscramble these letters to make a spanish phrase esosaaapahilbnoehstlsipn
asked by Anonymous 
us history
what are the political and social trends from westward expansion
asked by liz 
chemistry
A sample of sodium reacts completely with 0.568 of chlorine, forming 936 of sodium chloride. What mass of sodium reacted?
asked by Hanna 
Chemistry
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 25.2 of carbon were burned in the presence of 80.6 of oxygen, 13.4 of oxygen remained unreacted. What mass of carbon dioxide was produced?
asked by Hanna 
Physics
A child is hanging at the midpoint of a string and the string form an angle of 15 degrees with horizontal line. What's the force in the string? The answer is 850N. Who can show me the solution???
asked by Greta 
geometry
c+d+90=180
asked by kelicia 
math
six times some number added to 6 amounts to 33 added to the product of 3 and the number a)27 b)27 c)9 d)9
asked by vannesa 
gemotary
d+90=180
asked by kelicia 
Trig
A sprinkler on a golf green is set to spray water over a distance of 20 meters and to rotate through an angle of 160°. Find the area of the region that can be irrigated with the sprinkler. (Round your answer to two decimal places.) I really have no idea
asked by Danya 
mathematics of finance
solve; FV=7,000;i=0.03;PMT=$400;n=?
asked by zoe 
Math
9 students in a group found that their mean score was 86 for the first math test. On the next test, each student in the group scored 7 points higher than on the first text. What was their mean score for the two tests? Any help would be appreciated.
asked by Rose 
st paul lutheran
Compare 1/10 plus 1/10 equal or greater1/20
asked by i.a 
Business Statistics
12 out 20 finished the PGA tour  representatives of the probability that a randomly selected PGA tour payer uses Titlist brand golf balls . For a sample of 15 PGA Tour players c. For sample of 15 PGA players compute the EXPECTED number of players who use
asked by Denise 
World history
Write 5 paragraph on three new ideas you would include in your utopian society?
asked by Anonymous 
Science
A solution has a density of 3/mL. How many grams are needed to obtain 10.0mL of solution?
asked by Sammi 
Math
The volleyball court if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 1012th grade answer.
asked by D 
Algebra
A rectangular picture is 4 inches longer than it is wide. The picture is surrounded by a 3 inch wide frame. The area of the picture and frame is 144 square inches more than the area of the picture. What is the width of the picture?
asked by VaRey 
spanish
1. Voy de vacaciones y primero necesito (conﬁrmar el vuelo / pasar por seguridad) para viajar. 2. Voy a Dallas y luego vuelvo a Miami. Necesito un boleto (de ida y vuelta / de ida). my answers 1. confirmar el vuelvo 2. de ida y vuelta
asked by helen 
Math
3 pens and 2pencils sold for $.47. What Is the price for set of pen and pencil?
asked by Sydney 
Algebra
consider the following equations: 6x = 2y  9 9  y + 3x = 0 1/3y = x  9 What do they all have in common ?
asked by Var 
math
order from least to greatest: 2.7, 2 1/7, 3.13, 1 9/10
asked by kaci 
math
order from least to greatest: 2.21, 2.09, 2 1/9, 1 10/11
asked by kaci 
physics
. A race car moves such that its position fits the relationship x = (5.0 m/s)t + (0.75 m/s3)t3 where x is measured in meters and in t in seconds. (a) Plot a graph of the car’s position versus time. (b) Determine the instantaneous velocity of the car at
asked by shiranee 
math
order from lest to greatest: 6 7/8, 6 15/16, 6.9, 5,3
asked by kaci 
math
order from least to greatest: 5 9/11, 5.93, 5 7/10, 5.81
asked by kaci 
Math
8(t3)(t+1)=6
asked by Kelly 
Finance
Professor Anderson has a daughter who is 3 years old. In 15 years she will go to college and he is uncertain whether he has saved enough to finance her college education. Based on his reading, he believes that it will cost $208,000 to pay for his
asked by Nk 
math
what is 2 1/9 and 1 10/11 ???
asked by kaci 
Algebra 1
2  radical bar 5 over radical bar 10 simplify
asked by Chris 
PreAp Physics
A rock is projected from the edge of the top of a building with an initial velocity of 16.3 m/s at an angle of 39 ◦ above the horizontal. The rock strikes the ground a horizontal distance of 90 m from the base of the building. The acceleration of gravity
asked by Maria 
Math
I am greater than 4 tens and less than 5 tens I have 9 ones what number am I
asked by Anonymous 
Chemistry
Why is my actual percent of sulfate in alum a lot less than my theoretical percent of sulfate in alum? Actual Percent SO4= 1.68% Theoretical Percent SO4= 40.5%
asked by John 
chemistry
convert the following measurements to the units specified 1) 357ml = ?L 2) 25kg = ?mg 3) 35,000cm = ?L
asked by nae 
PreAp Physics
To win the game, a place kicker must kick a football from a point 17 m (18.5912 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 15 m/s at an angle of 58.9◦ from the
asked by Maria 
english
Correct the errors in dangling and misplaced modifiers by rearranging or rewriting the following sentences. 1.After boarding Hard Luck Airlines, the meals convinced us to return by ship.
asked by Anonymous 
math
the product of 3 whole numbers equals 8 and their sum equals 7
asked by ari 
literature
Why do you think the singer was an important person in Danish communities? (Beowulf)
asked by anonymous 
please help with economics!
Hi, please help me with this econs question! thanks! I'm asked to sketch the average and marginal cost curves of a software company, in which when it first starts up, the costs are extremely high. (High start up costs, millions of dollar spent to make the
asked by audrey 
math
A college bookstore ordered six boxes of red pens. The store sold 32 red pens last week and 35 red pens this week. Five pens were left on the shelf. How many pens were in each box?
asked by jose 
PreAp Physics
To win the game, a place kicker must kick a football from a point 17 m (18.5912 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 15 m/s at an angle of 58.9 ◦ from the
asked by Maria 
chemistry
Copper (II) fluoride contains 37.42% {\rm F} by mass. Use this percentage to calculate the mass of fluorine (in {\rm g}) contained in 56.0{\rm g} of copper (II) fluoride
asked by Justin 
physics
Two beetles run across flat sand, starting at the same point. Beetle 1 runs 0.42 m due east, then 0.72 m at 32o north of due east. Beetle 2 also makes two runs; the first is 1.48 m at 47o east of due north. What must be the magnitude of its second run if
asked by Anna 
English
A rain forest is always green many plants grow there. Is this a fragment, runon or complete sentence?
asked by joshua 
ENglish
THree fourths of all plants and animals. Sentence runon or fragment?
asked by joshua 
English
THe tall trees block the blue sky? Sentence run on or fragment?
asked by joshua 
English
Thirty million different kinds of insects sentence run on or fragment
asked by joshua 
accounting information system
how to make a flow diagram in bumper cars
asked by cutebebe_mahalko 
chemistry
convert the following measurements to the units specified 1) 357ml = ?L 2) 25kg = ?mg 3) 35,000cm = ?L
asked by nae 
chemistry.
a quantity of 25 ml of a solution containing both Fe2+ and Fe3+ ions is titrated with 23 ml of .02 M KMnO4 solution. as a result all the Fe2+ ions are oxidised to Fe3+ ions. Next the solution is treated with Zn metal to convert all Fe3+ ions to Fe2+ ions.
asked by mani 
women studies sports
Does anyone know any significant 2)female and b) male coaches, who have had an impact in women sports?
asked by jewel 
math
What is an area model
asked by Anonymous 
Physics
How can you tell which force diagrams have a strong normal force and which ones have a weak normal force?
asked by JB 
english
Correct the errors in dangling and misplaced modifiers by rearranging or rewriting the following sentence. 11. Squeezing the can, tomatoes didn't seem ripe to DeeDee To DeeDee spueezing the can tomatoes didn't seem ripe. can you check my answer
asked by Anonymous 
English
The rain forest is very wet, it gets more than 80 inches of rain each year. Run on right?
asked by joshua 
english
13. He did not think the bicycles would make it over the mountains, being so old. * The bicycles being so old .He did not thing it would make it over the mountains. please check my dangling and misplaced modifiers
asked by Anonymous 
Physics(Please just check, thanks)
Using a force table the direction and magnitude had to be found for the following measurements: F1 = 200 grams at 30 degrees; F2 = 200 grams at 120 degrees The magnitude and direction found was 280 grams at 257 degrees. Using the magnitude and direction of
asked by Hannah 
math
can you check if i did these 3 problems right or not: 5 (a+2) i got: 3 simplify: 5 (x+2) i got: 3 simplify: (y3) (4) i got: 12
asked by marko 
social study
A comparison of the average temperatures on any given day at points z,x, and U on the glove would probably show that the temperature at point X is? 1 warmer than at z and cooler than at U 2 warmer than at z and cooler than at U 3 cooler than at z and
asked by rony 
Chemistry
A 2.914 gram sample of gypsum, a hydrated salt of calcium sulfat, CaSO4, is heated at a temperature greater than 170 degrees Celcius in a crucible until a constant mass is reached. The mass of the anhydrous CaSO4 salt is 2.304 grams. Calculate the percent
asked by Sara 
chemistry
a 225.0 gram sample of aluminum is heated and the temperature increased from 50.0 celsius to 65.0 celsius for temperature change of 15.0 celsius. how many calories of heat was absorbed to produce this temperature change?
asked by sherry 
geography
Will you please check my answers? 1. The largest lake in the world is located near the border of Asia and Europe. What is its name? Caspian Sea 2. What is the name of the country that shares the Iberian Peninsula with Spain? Portugal 3. Name the Great
asked by Reed 
Physics
When a baseball is tossed directly upward, what is the slope of a plot of its acceleration versus time during the upward flight? plot has constant positive slope plot has constant negative slope plot has zero slope I think it is zero slope
asked by Liz 
university of redlands
Two blocks connected by a string are on a horizontal frictionless surface. The blocks are connected to a hanging weight by means of a string that passes over a pulley as shown in the figure below, where m1 = 1.85 kg, m2 = 2.80 kg, and m3 = 5.05 kg.
asked by Anonymous 
6th grd math
Mary put new tiles on her kitchen floor. The floor measures 6 ft long by 5 ft wide. She used 10 tiles to cover the entire floor each tile was 3 ft long. Write an equation using the variable x to model this situation. What does x represent in the equation?
asked by Equations & solutions 
Physics
A small plane flying horizontally 150m above the ground at a constant speed of 120km/h is to drop a container with supplies to a point on the ground. How far from the point directly above the target should the supplies be dropped without giving them an
asked by Lext 
maths(statistics)
it is about the system R or R programme. Can anyone help me about the question? Urgent! Let X denote the concentration of calcium carbonate (CaCO3) in milligrams per liter. Following are 20 observations of X: 130.8 129.9 131.5 131.2 129.5 132.7 131.5 127.8
asked by Wong 
Physics
Brandon launches a projectile at an angle of 75 degrees above the horizontal, which strikes the ground a certain distance down range. For what other angle of launch at the same speed would the projectile land just as far away?
asked by Baylyn 
Math
According to math teachers what did the acorn say when it grew up
asked by Ash 
chemistry
The following is kinetic rate data taken as absorbance of reactant vs. time: A: ln(A): Time/min: 0.532 ?? 0.0 0.484 2.54 0.442 5.12 0.395 8.35 0.350 11.95 fill in the ln(A) column
asked by Brunette 
Math
In lowest gear on a 10speed bike, each turn of the pedals makes the wheels turn 3.4 times. In the highest gear, each turn of the pedals makes the wheels turn 1.8 times. With each turn of the wheels, the bike travels 6.5 feet. How much farther does the
asked by Jonathan 
Physics
A person is standing on a spring bathroom scale on the ﬂoor of an elevator which is moving up and slowing down at the rate of 2.73 m/s^2. The acceleration of gravity is 9.8 m/s^2. If the person’s mass is 75.2 kg, what does the scale read? Answer in
asked by sam 
Algebra
Natalie has some nickles, Dirk has some dimes, and Quincy has some quarters. Dirk has five more dimes than Quincy has quarters. If Natalie gives Dirk a nickel, Dirk gives Quincy a dime, and Quincy gives Natalie a quarter, they will all have the same amount
asked by Jane 
physics
1) A boy sledding down a hill accelerates at 1.40 m/s, If he started at rest, in what distance would he reach a speed of 7.00 m/s? 2) An Elevator is moving upward at 1.20 m/s when it experiences an accelerstion of 0.31 m/s downward, over a distance of
asked by Tyler 
Finance
Professor Anderson has a daughter who is 3 years old. In 15 years she will go to college and he is uncertain whether he has saved enough to finance her college education. Based on his reading, he believes that it will cost $208,000 to pay for his
asked by Nk 
geometry
What is the approximate length of line MN when the coordinates of its end points are (4,5) and (6,9)?
asked by deanna 
college physics
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.5 N; a second force has a magnitude of 3.9 N and points in the negative y direction. Find the direction
asked by anne 
math
28 miles downstream in 2 hours 12 miles upstream in 3 hours what would the be speed in still water
asked by kyla 
World Geo
what brought the Maori to New Zealand? open land for farming open land for hunting wars in their "home" land
asked by sk8rgurl 
Geography
What are the differences betwen formal, functional, and perceptional regions?
asked by Abigail 
Physics
A plane drops hamper of medical supplies from a height of 2740m during a practice run over the ocean. The plane's horizontal velocity was 126m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity of the hamper at the
asked by sam 
science
A sphere of radius 4 cm iss carved from a homogenous sphere of radius 8cm and mass 160g. the mass of the smaller sphere is
asked by navneet 
economics
1. Suppose that as the price of Y falls from $3.00 to $1.00 the quantity of Y demanded increases from 10 to 18. Compute the price elasticity of demand. Is the demand elastic or inelastic?
asked by pat 
business calculus
Assume it costs Microsoft $4,700 to manufacture 7 Xbox 360s and $8,690 to manufacture 14. Obtain the corresponding linear cost function.
asked by Jessica 
physics
A 410mwide river has a uniform flow speed of 2.0 m/s through a jungle and toward the east. An explorer wishes to leave a small clearing on the south bank and cross the river in a powerboat that moves at a constant speed of 7.9 m/s with respect to the
asked by Hannah