Questions Asked on
October 19, 2008

college physics help please...
The location of the center of mass of the partially eaten, 11 inch diameter pizza (r = 5.5) shown in Figure 920 is Xcm = 1.1 in. and Ycm = 1.1 in. Assuming each quadrant of the pizza to be the same, find the center of mass of the uneaten pizza above the
asked by sally 
Math
Kelly subtracted 2.3 from 20 and got 17.7. Explain why this is reasonable.
asked by Jordan 
physics
A 20kg traffic light hangs midway on a cable between two poles 40meters apart. If the sag in the cable is .4 meters, what is the tension in each side of the cable?
asked by Elaine 
Physics
A car with a mass of 950 kg and an initial speed of v1 = 21.5 m/s approaches an intersection, as shown in the figure. A 1300 kg minivan traveling northward is heading for the same intersection. The car and minivan collide and stick together. If the
asked by Will 
college Chemistry
An adult takes about 15 breaths per minute, with each breath having a volume of 500mL. if the air that is inhaled is "dry", but he exhaled air is 1 atm pressure is saturated with water vapor at 37 degree C(body temp), what mass of water is lost from the
asked by CM 
chemistry
What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2CO2+3H2O=C2H5OH+3O2 express the answer in kJ/mol
asked by Lilit*** 
social important......help
why did alexander poured out drinking water offered to him in the desert? what was his goals and what did he get in result?
asked by Anonymous 
PHSICS
A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
asked by NICKI 
CHemistry Please Help..............LAB
Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water.
asked by Sara 
college chemistry!! need help now!!
An adult takes about 15 breaths per minute, with each breath having a volume of 500mL. if the air that is inhaled is "dry", but the exhaled air at 1 atm pressure is saturated with water vapor at 37 degree C(body temp), what mass of water is lost from the
asked by CM 
algebra with pizzazz
Who discovered the world's smallest glacier?
asked by nikole 
MATH
A kennel owner has 164 ft of fencing to enclose a rectangular region. He wants to subdivide it into 3 sections of equal length. If the total area of the enclosed region is 576 square ft what are the dimensions. I know that the answer is 18 ft by 32 ft or
asked by Brittany 
math
what are the similarities and differences between an arithmetic sequence and a linear equation? ok i know that arithmetic sequence is a sequence of real numbers for which each term is the previous term plus a constant (called the common difference). For
asked by Claudia 
Chemistryprecipitates
What precipitates form when Cu(NO3)2, CuSO4, NH4OH, and CaCl2 only two of the above added together. I need all combinations. What color are they? Ik Cu reacts with NH4OH. is the precipitate white?? what about the others?
asked by Giznelbell 
physics! please help
A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de !@#$%^&a from west to east at 3km/hr. In
asked by Tiffany 
Physics
A bridge that was 5.0m long has been washed out by the rain several days ago. How fast must a car be going to successfully jump the stream? Although the road is level on both sides of the bridge, the road on the far side is 2.0m lower than the road on this
asked by Joyce 
physics
A student is trying to decide what to wear. His bedroom is at 20.0°C. His skin temperature is 36.0°C. The area of his exposed skin is 1.46 m2. People all over the world have skin that is dark in the infrared, with emissivity about 0.915. Find the net
asked by tony 
physics
A glass window pane has an area of 3.50 m2 and a thickness of 0.600 cm. If the temperature difference between its surfaces is 27.0°C, what is the rate of energy transfer by conduction through the window? I tried using the formula P=ka[(thTc)/l] my answer
asked by tom 
phys
A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de !@#$%^&a from west to east at 3km/hr. In
asked by Christine 
Plz help ASAP... Biology!!
Why might the process of photosynthesis be considered a bridge between the living and nonliving parts of the world?? Thanks in advance.
asked by joe 
CHemistry Please Help. DR. BOBB
Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water.
asked by Sara 
Precalculus
Nathaniel pulls a sled along level ground with a force of 30 newtons on the rope attached to the sled. If the rope makes an angle of 20 degrees with the ground when it is pulled taught, find the horizontal and vertical components of the force. Round to the
asked by Lucy 
college level physics
a 40 kg skier skis down a frictionless slope angled at 10 degrees to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. What is Fx is the magnitude of the skier's
asked by jane 
physics again.
A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
asked by Tiffany 
Science
If a substance undergoes a chemical change, could its volume change?
asked by Nyesha 
English Essay Thesis
Here's my thesis for an essay on the Scarlet Letter. In Nathaniel Hawthorne’s The Scarlet Letter, Hawthorne creates Pearl as an allegory of Hester Prynne’s anima, a character foil unrestricted by circumstantial limits aggrandized by Hawthorne’s use
asked by Sahil 
math
My nextdoor neighbor loves to grow things in her garden, but she likes her garden neat, so she always plants in a exact square with five rows of five plants each. Each row in each direction has exactly one plant of each variety, and so do the center
asked by Dezy 
Science
suppose that sunlight falls on both a pair of reading glasses and a pair of dark glasses. Which pair of glasses would you expect to become warmer? defend your answer.
asked by Maricela 
operating system
a. What is the name and version number of the operating system? Windows XP Professional Service Pack 2 b. What kind of userinterface is used? window XP theme c. Can you see an indication that this operating system provides a job management function? If
asked by denise 
physics!
A girl shoots an arrow from the top of a cliff. The arrow is initially at a point 20 meters above the level field below. The arrow is shot at an angle of 30 degrees above the horizontal with a speed of 39.2m/s. How far out from the base of the cliff will
asked by Danreb 
History
How did John Adams help establish a stable government after the constitution? Like I know he almost put us in the QuasiWar and threatened civil rights with the Alien & Sedition Acts, but how did he HELP establish a stable gov't?
asked by Phil 
Physics
A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
asked by Brittany 
Math brain teasers!
okay so i was given a worksheet with 15 word problems. i couldn't solve 2 so if you could help me out it would be good.. If you ask Catwoman how many cats she has, she answers with the riddle, 'fivesixths of my cats plus seven.' how many cats does she
asked by Brennan 
analytic geometry
the base of an isoceles triangle lies on the xaxis. The coordinates of the midpoints of the equal sides pf the triangle are (2,3) and (2,3). What are the coordinates of the vertices of the triangles? Please help.
asked by Cynthia 
history
i have to do a news article on gaius (caligula) caesar about a big event that happened towards the end of his life. does anyone know a big event that happened towards the end of his life? all i can really find is when he was assassinated and that wont
asked by christina 
physics
Two blocks, joined by a string, have masses of 6 and 9kg. They rest on frictionless horizontal surface. A 2nd string, attached only to the 9kg block, has a horizontal force = 30N applied to it. Both blocks accelerate. Find the tension in the string between
asked by Tiffany 
physics!
A girl shoots an arrow from the top of a cliff. The arrow is initially at a point 20 meters above the level field below. The arrow is shot at an angle of 30 degrees above the horizontal with a speed of 39.2m/s. How far out from the base of the cliff will
asked by Danreb 
english
which is the incorrect usage of prescient/prescience Because of a prescient need for solitude, I left the party and walked home alone. Only his prescient avoidance of the bridge saved him from death. With great prescience she packed both a flashlight and
asked by kayla 
DBQ Essay
How long does the thesis usually have to be? Will 4 sentences suffice?
asked by L 
Math
An Ostrich can run 174 feet in 3 seconds. it costs $ 6:30 to mail a 6 pound package.
asked by Shane 
physics
A train going from one station to the next on a straight section of track accelerates from rest at 1.4m/s^2 for 15s. It then proceeds at constant speed for 1100m before slowing down at 2.2m/s^2 until it stops at the station. What is the distance between
asked by Anonymous 
Phyics
A rubber ball with a radius of 4.8 cm rolls along the horizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.83 m to the floor below. If the ball completes 0.68 revolutions during its fall,
asked by Andrew 
writing
or english, i have to write a creative paper about the stuff weve gone over in class. we have read one flew over the cuckoos nest, and a few other short sotries. i was wondering what i should write about becasue im stumped. this ranges all the way from re
asked by clay 
math
i asked a question yesterday and i got an answer. my question was how many 7 digit numbers can be formed with the numbers 1,2,4,7 if a) repetation is allowed b) repetation is not allowed i got an answer but i needed 2 answers and im not sure if the answer
asked by ken 
Calculus
Could someone please check my work on the following problems? I want to be sure that I'm doing them correctly; i'm just required to find the derivatives and then simplify. g(t)= t/sint g'(t)=1*sintcost*t/(sint)^2 g'(t)=sintcost*t/(sint)^2 y=ln(e^ax)
asked by Joesph 
chemistry
What is delta Hrxm dagrees for the following chemical reaction? CO2(g)+2KOH(s) = H2O(g)+K2CO3(s) Express your answer in numerically, in kJ
asked by Lilit*** 
english
Rewrite this sentence into the active voice by filling in the blank: ORIGINAL: The agency conducted an investigation into the matter. REVISED: The agency __________ the matter. ORIGINAL: Attempts by economists at defining full employment have met with
asked by rachel 
algebra
In any triange, the sum of the measures of the angles is 180degrees. In triangle ABC, angle A is four times as large as angle B. Angle C measures 20degrees less than angle B. Find the measure of each angle.
asked by misha 
math
729,7098,729,2
asked by ra ny 
physics help please....
After fixing a flat tire on a bicycle you give the wheel a spin. (a) If its initial angular speed was 5.17 rad/s and it rotated 10.6 revolutions before coming to rest, what was its average angular acceleration? rad/s2 (b) For what length of time did the
asked by sally 
government
be aware of two significant facts about the legislative process. First, almost all legislation is considered in subcommittees composed of from six to ten members. Second, most legislation enacted into law passes without any changes in the way a bill is
asked by Anonymous 
microsoft
Your assignment is to organize a charity event. You can be as creative as you want here. Here are conditions of your assignment: You must use at least two programs, one of which must be a Windows program such as Word, WordPad, or Paint. Describe the
asked by Anonymous 
health
what are five appearance and grooming factors that result in a professional image.
asked by robyn 
Physics
As you drive down the road at 21 m/s you press on the gas pedal and speed up with a uniform acceleration of 1.24 m/s2 for 0.60 s. If the tires on your car have a radius of 33 cm, what is their angular displacement during this period of acceleration? in
asked by joe 
english
One of the two passages below follows the oldnew contract. Identify it. I think it is passage one can anyone help verify if I am correct 1. The old/new contract is another principle for writing clear closedform prose. Beginning your sentences with
asked by michelle 
english
In the following passage, a linking device has been omitted. Choose the word that would make the passage coherent: __ this technique won’t work for everyone, it helps many people get a good cache of ideas to draw on. 1. However 2. Although Please help
asked by rachel 
government
PACs have been called “collection agencies” for interest groups. They were created to evade laws that forbid corporation and labor unions from giving money “directly” to federal candidates. These laws still exist. Aren’t the laws now a farce? Why
asked by Anonymous 
English
1. What did Mike need at the store? He needed some things. 2. Who went shopping together? Mike and Ann did. 3. What did Mike and Ann do? They went shopping together. 4. What did they look at? They looked at the yellow bananas, the green peas, and the
asked by John 
chemistry
A frostfree refrigerator uses about 640 kWH of electrical energy per year. Express this amount of energy in J: kJ: Cal:
asked by Lilit*** 
government and politic
the percentage of people between the ages of eighteen and twenty who are registered to vote has dropped much more than that of people aged sixtyfive and over. Does this indicate that voting turnout will continue to decline in the future?
asked by Anonymous 
Math
Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240lb mixture that is 10% protein?
asked by Jane 
physics
Ok, I am not sure how to about about solving this problem and have been staring at it and drawing pictures for several hours now. Do I use the spring equation for potential energy? Or is it a momentum problem where I should assume the spring has it's own
asked by Alice 
Physcology
Final Project: Interview Profile • Resources: Ch. 5 (pp. 21319); Ch. 6 (pp. 22538); Ch. 9 (pp. 33039); Ch. 11 (pp. 441 46); Ch. 15 (pp. 57180) in Psychology: An Introduction (12th ed.) Appendix A • Due Date: Day 7 [post to the Individual forum]
asked by Vivian 
R.E
Please help, sorry if i keep reposting but i have loads of R.E questions for my homework. What do Hindu's do with those who have died please? Thanks
asked by Chanel 
physics
what is the magnitude of the displacement of a car that travels half a lap along a circle of radius 150m? would the answer be half of the circumference or would it be the diameter of the circle?
asked by Anonymous 
calculus I
Find the tangent line approximation to 1/x when x=1 How do i find tangent line approximations??? my prof hasn't gone over this and i don't understand how to do it.
asked by Rob 
12th grade calculus
find points on the curve x^2+xy+y^2=7 (a) where the tangen is parallel to the xaxis and (b) wehre the tangent is parallel to athe yaxis. (in this case, dy/dx is not defined, but dx/dy is. what value does dx/dy have at these point?)
asked by  
12th grade calculus
find the lines that are tangent and normal to th ecurve at the point given 1. 2xy+piesiny=2pie (1, pie/2) 2. x^2cos^2ysiny=0 (0, pie)
asked by elley 
US History
How was trade affected by the American Revolution? Tobacco was exported more during the years of 17671804, but then it started to decrease.
asked by adam 
Health
A patient's attorney asks her physician for medical records about the patient's care accident and promises to provide a written authorization from the patient later. The physician gives the attorney the patient's entire file, including her records about
asked by Dee 
Essay
i'm writing an inverted intro paragraph and these are the sentences i have so far. 1. ? 2. giving back to the community 3. community service 4. the youth volunteering 5. benefits of youth volunteering for commuity service can anyone think of a beginning
asked by Anna 
mathcalc
show that 1(x/2) is the tangent line approximation to 1/sq rt(1+x) near x=0 i know the formula for apprx. is y = f(a)+f'(a)(xa) but i don't understand how to work backwards to get this.
asked by joe 
physics
A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?
asked by Fred 
Math
Solve the following system of equations. x+2y=9 (1) x=32y (2)
asked by Jane 
social studies
how do I make a virtual field trip for upper elementary and middle school students about social studies.
asked by sally 
english
What is the topic sentence I think it is sentence 3 please let me know if you think it is as well Voice mail is usually part of your firm’s phone system. It is a way to digitally record messages, and it allows “random access” so you can skip, delete,
asked by michelle 
11 grade world history
what leisure activities flourished at the turnof the 20th century
asked by tania 
Microsoft Word file glitch
I must have hit the wrong key. As I was writing a Microsoft Word document, the whole screen changed and now everytime I hit the "Enter" bar, a black Paragraph symbol prints. Each letter has a dot between it as though I am seeing the visual representation
asked by Margaret 
Math Ideas only
I need some help on getting ideas for my limits & continuity calculus project! For the limits project: I have to conduct an "interview with a limit" (Q&A format).I have to include factual information like definitions, properties, theorems, etc. I also have
asked by RJ 
congress and law
why do congress pass the lobbying act when it was so ineffective?
asked by LY 
R.E
As i said before, sorry, i have an internet assesment test on R.E with questions on religions. On Which continent did Hinduism begin? Thanks
asked by Chanel 
physics
A transfer of heat occurs with a pot of 8.0 kg of water that changes from 400 degrees kelvin to 320 degrees kelvin. How much heat is absorbed or given off?
asked by sammi 
economics
The forecasting method that involves using an average of past observations to predict the future (if the forecaster feels that the future is a reflection of some average of past results) is the
asked by tommy 
Economics question
14. Inflation increases the prices of all goods by 20%. At the same time, Ina’s income increases from $50,000 to $55,000. Compare the situation after both of these changes have happened with the situation before any of these changes have happened. a.
asked by Jordon 
Algebra
I've been working on this for an hour and I know it's more simple than I'm making it. Please enlighten me. Cyclist 1 is traveling at 20 mph, Cyclist 2 is traveling at 14 mph. How long before they're 15 miles apart? I've tried to fill in a block diagram and
asked by Brian 
social studies
what is the dividing line between east & west in the usa and how are those two regions different?
asked by briahnna 
college algebra word problem
Lisa drove 8 miles to pick up her friend Laurie, and then drove 11 miles to a mall at a speed 15 mph faster. If Lisa'a total travel time was 24 minutes, what was her speed on the trip to pick up Laurie? Thank you!!
asked by jenny 
chemistry
What is 1.384 kg multiplied by 5.4 square meters?
asked by Paige 
physics
If the density of a medium is 1000 kg/m3 and the propagation speed is 1540 m/s, the impedance is rayls.
asked by julie 
physics!
A soccer ball is kicked from the top of a 256 foot building with an initial velocity of 6 ft/s. What will the ball's velocity be at the instant before it strikes the ground?
asked by carissa 
physics please help
A soccer ball is kicked from the top of a 256 foot building with an initial velocity of 6 ft/s. How far from the base of the building will the ball land?
asked by carissa 
history american revolution
The inhabitants of the English colonies of North America have the rights: 2. That our ancestors, who first settled these colonies, were at the time of their emigration from the mother country entitled to all rights, liberties, and immunities (freedom from
asked by raleigh 
Physics
Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?
asked by Isobelle 
math
If you have a rectangle that is 8cm by 6cm and you cut it diagonally, what other 4 geometric shapes can you create
asked by Mark 
History
What authority does Congress have over other states according to Article III of the Constitution? Over federal territories?
asked by Joshua 
stats
You are determining the period of oscillation of a pendulum. One procedure would be to measure the time for 20 oscillations, t20, and repeat the measurement 5 times. Another procedure would be to measure the time for 5 oscillations, t5, and repeat the
asked by Sam 
6th grade advanced math
1) /3/____ 3 //= what's the absulute value of. In the blank either put < or >! 2) In three plays, a football team gains 11 yd, loses 18 yd, and gamins 3 yd. Write and evaluate an addition expression to model the situation. [please explain how you got
asked by someone 
math
7/9  (13/18)=
asked by deedee 
PHYSICS
A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?
asked by Bartholomew 
Precalc
I don't know if i did this correctly is(x1) a factor of 17x^10+16x^6+1 its no.. right?
asked by Vi 
biology
would you expect to find epithelial tissue in other organisms?
asked by sam 
12th AP Calculus
find the dy/dx of: y=3(cscx)^3/2
asked by dt 
Microeconomics
Monopolistic Competition The administrtive burden of regulating price in monopolistically competive market: A. small due to economies do scale B. large because price is usually below marginal cost C. large because of the large number of firms that produce
asked by G 
math
what is 149x=8(10+x)
asked by whitney 
science. please help a.s.a.p
i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere +average air
asked by Anonymous 
Science
What is part of the mantle that can bend like plastic?
asked by Elise 
help
Teachers sometimes want students to work together in order to complete an assignment or a task. Two common instructional methods used in the classroom are group investigation and cooperative learning. When is it appropriate to use group investigation in
asked by dawn 
Sociology
I had this question in a test and now im preparing for my exam. I didn't know what to write. Can you help me on this. To what extent do elite groups dominate government decision making in democratic societies? Thank u.
asked by Ishani 
help asap please
intelligences includes eight different types of intelligence: (1) linguistic, (2) logicalmathematical, (3) spatial, (4) musical, (5) bodilykinesthetic, (6) interpersonal, (7) intrapersonal, and (8) naturalistic How can you provide for multiple
asked by dawn 
social studies
what are unique things to the american culture
asked by Lisa 
12th grade calculus
find the lines that are (a) tangent and (b) normal to the curve at the given point x^2 + xy  y^2 = 1
asked by dt 
earth science.
i searched google and no help. i have been stuck for hours.i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is
asked by please help please 
Caculus I
If f is decreasing and f(20)=10, which of the following must be incorrect? Explain. a. (f^1)'(20)=3 b. (f^1)'(10)=12 how do i work this problem? i'm kind of confused about inverse functions.
asked by Rob 
math
y=2/3x12
asked by billy 
Math
If a is 50 percent larger than c and b is 25 percent larger than c, then a is what precent larger than b?
asked by Maggie 
math
56+x  8
asked by blt 
math
what is the slope and yintercept of the line y=2/3x12
asked by billy help me (asap) plz 
chemistry
A mole of reacts at a constant pressure of 43.0atm via the reaction Before the reaction, the volume of the gaseous mixture was 5.00L . After the reaction, the volume was 2.00L . Calculate the value of the total energy change, , in kilojoules.
asked by jessica 
Legal Aspects of health Information
I am researching for a paper I have to write for school. I need to use medical Web sites. Having a hard time. One of my questions? Should corrections be date and timestamped?
asked by Debbie 
physics
A tennis ball has a velocity of 25 m/s and a mass of 57.5 g. After the ball hits a tennis racket, the velocity becomes twice that of the original speed and goes in the opposite direction. What is the force between the ball and the racket if the time that
asked by adriana 
english
which ONE of these sentences uses the word connoisseur incorrectly? A connoisseur of opera, my cousin also enjoyed the Grand Ole Op'ry Elisa, a philanthropist and connoisseur, left her collection of 20th century art, valued at more than 40 million dollars,
asked by kayla 
stats
Express the following quantities to the correct number of significant figures: (a) 23.043 ± 4.321 (b) 67 ± 9.023 (c) 33.1492934 ± 2 Isn't (a) already the correct number of significant digits? Would (b) be 67.000 ± 9.023? Would (c) be 33.1492934 ±
asked by Sam 
government
Since passage of the Federal Regulation of Lobbying Act in 1964, only four persons have been prosecuted under its provisions with only one conviction. Why is the law so ineffective? Why doesn’t Congress enact a stronger law? Why would the First
asked by Anonymous 
R.E
What is the proper name for the Hindu Monkey God? Thanks
asked by Chanel 
physics
constant acceleration or constant velocity which is harder to maintain over a short distance
asked by sam 
9th grade
English: I need help writing a skit on a greek myth, primarily about Thesis.
asked by John Jacob 
chemistry
how would i draw the expected proton nmr spectra and draw the integrated areas for each signal for 2,5dimethyl2,4hexa diene?  i have 3 unique protons. 2 at 5.5, 6 at 1.5, and 6 at 1.2 1phenyl2methylpropare?  i have 3 unique protons 5 at 7.5, 2 at
asked by jen 
Experimental Design
I'm doing research on reasons for the canceling of soap operas. I cant seem to find any information as to WHY they cancelled south of nowhere. Many sites say that it is just ending, but I need help finding what caused it to end. can someone help me on this
asked by Liz 
statistics please help
A student measures three lengths a, b and c in cm and a time t in seconds: a = 40 ± 5 b = 30 ± 3 c = 20 ± 1 t = 1.2 ± 0.1 What is a+b a+b+c a/t (a+c)/t Calculate (1.23 ± 0.03) + pi Question 9.4. Calculate (1.23 ± 0.03) × pi Can you do a sample
asked by Sam 
Chemistry
assuiming that the calorimeter contains 5.00 * 10^2 g of water and the intial temperature is 30.0 degreddc, what will the final temperature be?
asked by  
government
Long ago, James Prothro and Charles Grigg discovered a problem with the views of Americans on democratic values. The general public manifest opinions that are often contrary to basic values essential to sustain a democratic government. Political elites are
asked by Anonymous 
Chemistry
assuiming that the calorimeter contains 5.00 * 10^2 g of water and the intial temperature is 30.0 degreddc, what will the final temperature be?
asked by priya 
physics
why is it harder to maintain costant accleration rather than cosntant velocity when walking
asked by bill 
government and politic
The unemployed are much less likely to vote. Isn’t this fact detrimental to their wellbeing? Doesn’t it in effect allow politicians to ignore the plight of jobless? What factors account for the lack of involvement by the unemployed in an activity that
asked by Anonymous 
chemistry
What is the balanced chemical equation for the reaction used to calculate of delta Hdagrees f of CaCO3(s)?
asked by Lilit*** 
math
21(21)= would this be 0 or 42
asked by deedee 
Physics
Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?
asked by Isobelle 
12th AP Calculus
use implicit differentiation to find dy/dx and then d^2y/dx^2 x^2/3 + y^2/3 = 1
asked by dt 
Precalc
if a question says is a a zero of (some equation) can you just plug in all the x's as a and see if you get zero?
asked by Vi 
Science
in science weve been given this cheese thing and i don't know what the big idea of particles OR the big idea of engery is! SOS
asked by jess 
math
how many seven digit numbers can be formed with the digits 1,2,4,7 if NO repetition is allowed
asked by diane 
Physics
Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?
asked by Isobelle 
history
desribe the social, economic, and political composition of the decade of corporate greed and how it affected the political climate of the 1980's.
asked by Anonymous 
EARTH SCIENCE
i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere +average air
asked by josh 
math
29,7098,729,2
asked by ra ny 
politic
is it fair to hold a incumbent party???
asked by opinion 
us history
If you had to give a reason why students should learn/study social studies in school what would you say?
asked by Jackie 
Precalculus
A surveyor sets a stake and then walks 150 feet north, where she sets a second stake. She then walks 300 feet east and sets a third stake. How far from the first stake is the third stake? Round to the nearest tenth. Thanks for your help.
asked by Lucy 
math
please help me with my math. Use the distance formula to find the distance between the following points. Show all your work. Round to the hundredths place. (4,5) and (7,3) (2.4,8) and 1,6.3) (29,4.1) and (53.2, 100)
asked by logan 
Precalculus
A golf ball is hit with an initial velocity of 135 feet per second at an angle of 22 degrees above the horizontal. Will the ball clear a 25 foot wide sand trap whose nearest edge is 300 feet from the golfer? Will be through with all the word problems soon.
asked by Lucy 
pshyics
why is it harder to maintain costant accleration rather than cosntant velocity when walking
asked by fred 
government
Where can I find some facts or statistics on how much money the government gives to schools?
asked by SENiOR '09 
Math Properties
What property is expressed in the equality b + (b) = 0?
asked by Harley 
English
What is the adverb for disorient? I've already tried disoriently disorientedly disorientingly disorientatedly not real words.
asked by Achilles 
history
what is difference between political and economical?
asked by louie 
earthscience
Would a field represented by a contour map change over time
asked by jasmine 
science
Having a problem with this question.. Why might the process of photosynthesis be considered a bridge between the living and nonliving parts of the world??
asked by joe 
Chemistry instruments
what is that tool called the one you put drops of solution in to observe if a ppt is formed?? dish...something??
asked by Giznelbell 
AP Calculus 1
find derivative of cos^4(x)^4
asked by jo b. 
math
what is the area of a square 2 1/2 m. on a side?
asked by ahsley 
History
According to the U.S Constitution, what two duties do states have to other states?
asked by Elizabeth 
Physics
Tankkiller rounds (fired by another tank) consist of a shell whose projectile is a long, slender (18.2 mm diameter by 31.7 cm long) cylindrical rod of depleted uranium of density 18.7 gm/cm3. Assume that the shellâ€™s speed is 1550 m/s. You have
asked by Ryan 
Math
What properties are expressed in these equations? a=b a + [c + (c)] = b + [c + (c)] Also, would the property expressed in a=b be the substitution property of equality?
asked by Lilly 
japan
Where can I find a climate map of the country Ogilvie?
asked by Mahlei 
Physics
How do you find the "range" for a projectile launched where feta = 0 degrees? What formula do you use? Also, a soccer ball is kicked horizontally off the top of a tall building, describe the ball's initial velocity both in terms of its magnitude and its
asked by meg 
enviromental science
what are three ocean resource problems
asked by Michelle 
government
Interest groups attempt to stimulate “public support” for their causes. One tactic is to manipulate public opinion through use of the media. To illustrate, Elizabeth Whelan, executive director of the American Council on Science and Health, report that
asked by Anonymous 
PHYSICS
A block is on a 24 degree incline, with a rope attached to a spring at the top of the ramp which has a spring constant of 65 N/m. If the spring is stretched 1.3 m, the coefficient of friction is 0.01, and the acceleration of the block is 0.35 up the
asked by Bob 
Education
Write a 1,7502,100 word persuasive paper supporting your opinion on Are Uniforms a Good Way to Improve Student Discipline and Motivation
asked by Kristi 
college biology
why is autophagy not considered endocyctosis?
asked by kate 
chem
what are the mono saccharides in sophorose
asked by Anonymous 
government
The Founding Fathers worried about the ability of the “average” citizen to make wise decisions on political issues. This concern seems to remain valid. Why hasn’t the situation changed given the increase in the number of Americans receiving
asked by Anonymous 
government
Is it fair to hold a member of the incumbent party – such as Nixon in 1960 or Humphrey in 1968 responsible for the policies of the president, even though the individual may have had no role in formulating them? Are voters better off if it is fair? Is
asked by Anonymous 
government
Advocates of a parliamentary system argue that congress is inefficient, moves slowly, and develops policies laced with compromises. What evidence exists to support this negative evaluation? Discuss the intentions of the founders, the electoral system,
asked by Anonymous 
essay
in the play Hamlet by william Shakespeare, are there something rotten in the state of Denmark? and who responsible for that?
asked by dt 
hisotry
what is the politics of consensus?
asked by Anonymous 
Evironmental science
Over a billion people in developing nations live in households that have too little land to meet even their own needs for food and fuel. What options are available to these people? What are the advantages and disadvantages of each of the following options.
asked by donna 
physics
experiment times: .15, .13, .16, .14, .15, .14, .15, .14 what is the the best estimate and estimate the uncertainty?
asked by Brittany 
Social Studies
I have an upcoming debate about the Canadian Confederation. I'm on the side of Newfound land and I'm stating why I should join the Confederation.  It will get more money since Britain won't longer carry the costs  Canada promised Newfoundland railways
asked by Nach 
Philosophy
What is traditional moral and political philosophies and modern moral and political philosophies?
asked by Sara 
12th AP Calculus
find the dy/dx of: x^2=(xy)/(x+y)
asked by dt 
precalc
If it says is (some equation) divisble by a can you just pug in a for x and see fi you get zero?
asked by Vi 
Science.
what natural resource is plastic made from??
asked by Kristin; 
government and economic
banker, doctors, corporation presidents, and wall street lawyers (the traditional elite) veruss government officials, research scientists, professors, and the mass media. Which group would benefit most from each of the following developments?  Largescale
asked by chen 
Chemistry!
Are hydrocarbons always nonpolar??
asked by Sue Ellen 
Precalc max and min wd problems
when an auto dealers mark up over factory price is x dollars per care he dealer sells (3002/3 x)cars per month what value of x will the profit be the greatest?
asked by Brian 
social plz...help
what are or was the architecture and drama of United States.???
asked by Anonymous 
Physics
Hi Guys! Need help with this physics problem, I have no idea how to set it up or how to visualize it but would appreciate any help. Instructions for finding a buried treasure include the following: Go 80 paces at 235°, turn to 130° and walk 115 paces,
asked by Kirsten 
english
sing JOhn Mayer's song belief Explain/prove how two charcters of the Crubible by Arthur miller plays the role of John Mayer's thesis about belief in the play.
asked by adam 
EARTH SCINECE PLEASE HELP PLEASE
i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere =average air
asked by Anonymous 
Precalculus
a triangular shelf is to be placed in a curio cabinet whose sides meet at an angle of 105 degrees. If the edges of the shelf along the sides measures 56 centimeters and 65 centimeters, how long is the outside edge of the shelf? Round to the nearest tenth.
asked by Lucy 
us history
How would I find a timeline of important events from 1996  2008?
asked by John 
GOV/ECO
Is education a government issue or problem? If so how?
asked by SENiOR '09 
Calculus
I need some help on getting ideas for my limits & continuity calculus project! For the limits project: I have to conduct an "interview with a limit" (Q&A format).I have to include factual information like definitions, properties, theorems, etc. I also have
asked by RJ 
business
Do you have any Business reasearch students on this site.
asked by jean 
Math
How do i find area? its length times width right?
asked by Joe 
Math
is a star a sticker
asked by ST 
government
Advocates of a parliamentary system argue that congress is inefficient, moves slowly, and develops policies laced with compromises. What evidence exists to support this negative evaluation?
asked by  
englis
using JOhn Mayer's song belief Explain/prove how two charcters of the Crubible by Arthur miller plays the role of John Mayer's thesis about belief in the play. Hi i need a lot lot of help with this. i don't which characters to use or how the play even
asked by adam 
Philosophy
What is the difference between rawls and Nozick when it comes to the distribution of Property?
asked by Nichole 
physics
a ball is thrown upward with an initial velocity. What is it's velocity to halfway to its highest point? the answer is the square root of 2, but how do u get that answer?
asked by Anonymous 
Biology
How many different kinds of monomers are there in starch?
asked by Cindy 
biology, heart rate
hi can you help me write a conclusion saying why your heart rate goes up when you do exercise? thanks.
asked by caitlin 
biology
hi Exercise makes your heart pump faster increasing your heart rate. is there a chemical reaction for it thanks
asked by caitlin 
government
Where can I find statistics on a public school teacher salary VS a private school teachers salary?
asked by SENiOR '09 
Science 275
how did the U.N conference give awards for the urban development to porjects that improved human settlements?
asked by angela 
math
If the lengths of two sides of a right triangle are 3 and 4, what is the least possible length of the third side?
asked by Jenny 
Math
Each sheet of stickers contains 1000 stars. The stars are arranged in 20 by 50 each sheet. Mr.Tinker used 3894 stickers during the first grading period. How many sheets was this? I say it's 4 sheets, correct? Thank you for your help.
asked by ST 
math
Do you know any sites that have circumcenter, orthocenter or centroid word problems?? i really need the practise.. please help!
asked by Garrick 
algebra, equations
what is the slope and yintercept of the line y= 2/3x12
asked by johnny 
12th grade calculus
find the derivative of y with respect to the appropriate variable. y=sin^1ã2t ã =radical
asked by dt 
12th grade calculus
find the derivative of y with respect to the appropriate variable y=sec^1*5s
asked by dt 
6th grade
I am doing a greek mythology project. I am Medusa,I need a creative way to symbolize Medusa. other than just snakes in the hair...any help?
asked by Shannon 
government
Is there a chart where I can see what percentage of our tax dollars goes to what?
asked by SENiOR '09 
Science
second largest classification group
asked by Lauri 
college algebra
find a reallife application of a quadratic function. State the application, give the equation of the quadratic function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the
asked by Renee 
College Calc I
If f is decreasing and f(20)=10, which of the following must be incorrect? Explain. a. (f^1)'(20)=3 b. (f^1)'(10)=12 how would i go about figuring this out??? i'm not sure exactly what the concept in question is here.
asked by Eva 
science
discuss the benefits and challenges of urbanization and how the U.N. Conference gave awards for urban development projects that improved human settlements.
asked by angela