Homework Help: College

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Sociology college
Hello ! I need help my homework Using a computer to create an ever changing, online yearbook of people with similar interests to oneself, and also using it as a means to develop a network of contacts is refer to as A) the second self B) cyber socialization C) facebooking D) ...
Wednesday, September 22, 2010 at 12:16pm

college chemistry
given 3.650 l of a 1.75 M solution, what mass of calcium chloride is needed to prepare?
Wednesday, September 22, 2010 at 12:10pm

Sociology college
Hello ! I need you help my homework By a narrow margin, Dr. Moreau was recently elected chair of the largest academic department are Faber College She has appointed faculty members who are loyal to her and support her views t o the most influential and important committees in ...
Wednesday, September 22, 2010 at 11:12am

IT/210
I am in week 9 and I need help. Create requirement specifications, design specifications, and processing models (including input/out tables, data flow models, and procedural processing). First of all what do each of these terms mean? That is all I need to know I am in Axia ...
Wednesday, September 22, 2010 at 12:13am

college physics
A cannon is fired from a cliff 200 m high downward at an angle of 30o with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?
Tuesday, September 21, 2010 at 11:09pm

college physics
To stretch a spring 7.00 cm from its unstretched length, 16.0 J of work must be done. What is the force constant of this spring? What magnitude force is needed to stretch the spring 7.00 cm from its unstretched length? How much work must be done to compress this spring 4.00 {\...
Tuesday, September 21, 2010 at 11:07pm

college physics
After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?
Tuesday, September 21, 2010 at 10:20pm

math
In a local college, 60% of the math majors are women. Fifteen math majors are chosen at random.
Tuesday, September 21, 2010 at 8:25pm

college physics
A football punter accelerates a football from rest to a speed of 7 m/s during the time in which his toe is in contact with the ball (about 0.26 s). If the football has a mass of 0.50 kg, what average force does the punter exert on the ball?
Tuesday, September 21, 2010 at 8:20pm

college physics
A freight train has a mass of 1.7 multiplied by 107 kg. If the locomotive can exert a constant pull of 7.4 multiplied by 105 N, how long does it take to increase the speed of the train from rest to 68 km/h?
Tuesday, September 21, 2010 at 8:19pm

college physics
Two blocks each of mass m = 4.10 kg are fastened to the top of an elevator as in the figure below. (a) If the elevator accelerates upward at 1.6 m/s2, find the tensions T1 and T2 in the upper and lower strings. (b) If the strings can withstand a maximum tension of 96.0 N, what...
Tuesday, September 21, 2010 at 8:16pm

college physics
A 78-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.74 s. The elevator travels with this constant speed for 5.0 s, undergoes a uniform negative acceleration for 1.8 s, and then comes to rest...
Tuesday, September 21, 2010 at 8:12pm

college
Assume that the student has a cup with 13 writing implements: 7 pencils, 4 ball point pens, and 2 felt-tip pens. In how many ways can the student select 9 writing implements if no more than one ball point pen is selected?
Tuesday, September 21, 2010 at 8:12pm

college math
solve absolute value 2x-20 absolute value=absolute value 9x+ ansolute value 15 |2x-20|=|9x+15|
Tuesday, September 21, 2010 at 6:59pm

college
Do you believe electrons exist and why or why not?
Tuesday, September 21, 2010 at 5:39pm

Sociology college
Hello! i need help my homework In a Gemeinshaft society,people are more likely to 1) be highly dependent on the nuclear rather than the extended family 2) view life and morals in terms of how they affect the individual 3) stress formal education as a prerequisite of headship 4...
Tuesday, September 21, 2010 at 3:58pm

college
Pretend the program in Senegal had been reducing infant mortality at a rate of 11 % per year. How long would it take for infant mortality to be reduced by 39 %?
Tuesday, September 21, 2010 at 1:01pm

college
A baseball pitcher throws a baseball with a speed of 38 . In throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 , from behind the body to the point where it is released Estimate the average acceleration of the ball during the throwing ...
Monday, September 20, 2010 at 10:46pm

college
what will be the final temperature if a 5.00-g block of aluminum at 37.0 celsius gives off 25.0 J of heat to its surroundings?
Monday, September 20, 2010 at 8:30pm

college physics
A 5.10 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.450. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. (b) The...
Monday, September 20, 2010 at 8:07pm

college
After you work out at the gym on a stationary bike for 43.0 minutes, the distance guage indicated that you have traveled 14.8 miles. What was your rate in km/hr?
Monday, September 20, 2010 at 8:07pm

college physics
In the drawing, the weight of the block on the table is 478 N and that of the hanging block is 195 N. Ignore all frictional effects, and assuming the pulley to be massless. (a) Find the acceleration of the two blocks. (b) Find the tension in the cord.
Monday, September 20, 2010 at 8:05pm

college physics
A swimmer is heading straight for the other shore of a river with a velocity of vs=0.7 m/s relative to the water, but is carried away by the current, which has a velocity of vr=0.3 m/s. It takes her 20.3 s to get across. How far downstream does she end up? Can someone please ...
Monday, September 20, 2010 at 7:20pm

college physics
An airport worker needs to make it across a luggage belt in order to retrieve a stuck suitcase. The belt is moving with 1.6 m/s, and the worker can run with v=1.7 m/s. If he wants to make it straight across the d=2.3 m wide belt, how long will it take for him to reach the ...
Monday, September 20, 2010 at 6:58pm

compensation and benefits
what can you do to build in strategic compensation into your organization.Use the designation (ABC) company or college to keep anonymity
Monday, September 20, 2010 at 6:49pm

college physics
A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.2 cm from the center of the disk, what are the revolutions per minute (rpms) of the disk? Can someone please help me solve this problem step by step. The ...
Monday, September 20, 2010 at 3:37pm

college physics
A point (labelled P in the figure) is attached to the rim of a disk of radius 0.2 m, which can turn around an axis through its center. It is rotating counterclockwise with a speed of 2.5 m/s. Can someone please help me solve this equation step by step?
Monday, September 20, 2010 at 3:33pm

college physics
A box is sliding down a ramp sloping 25° above the horizontal. The coefficient of kinetic friction is 0.15. What is the acceleration? The answer is 2.8 m/s^2. How can this be solved with out mass?
Sunday, September 19, 2010 at 11:07pm

college physics
What is the cross product a x b of the two vectors a = 64.00 m directed due east and b = 32.00 m directed 30° north of east?
Sunday, September 19, 2010 at 9:52pm

college physicalscience
the air speed of a plain is 223km/h and the pilot keeps the plane pointed north. A wind is blowing73.6km/h from the west. Determine the speed (in km/h) of the plane relative to the ground
Sunday, September 19, 2010 at 9:47pm

College Physics
A car initially traveling northeast (45° N of E) at 28.3 m/s takes 6.0 s to turn to the east. After the turn, the car is traveling due east at 20.0 m/s. What is the value and direction of the change in velocity?
Sunday, September 19, 2010 at 9:44pm

college
A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to go from a speed of 55 mi/h to 60 mi/h?
Sunday, September 19, 2010 at 8:15pm

college physics
A 32 kg box sitting on a ramp has a coefficent of 0.21. If the ramp is raised, at what angle will the box begin slipping?
Sunday, September 19, 2010 at 8:12pm

college
A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to from a speed of 55 mi/h to 60 mi/h?
Sunday, September 19, 2010 at 8:12pm

college UOP
WHAT ARE YOUR VIEWS WITH DIVIDING ATTENTION AMONG A GROUP
Sunday, September 19, 2010 at 4:13pm

Statistics
Hi, I have to answer if each questions is a nominal, ordinal, interval discrete, interval continuous, ratio discrete, or ratio continuous. I would like to know if my answers are correct and if wrong what is the correct answer. Thanks 1. Highest level of education completed? a...
Sunday, September 19, 2010 at 3:45pm

college math
Solve. write the solution set using interval notation 9-(7x-9)is greater than or equal to sign -8(x+1)-8
Sunday, September 19, 2010 at 1:02pm

College Physics
What is the work required to move a proton 1 cm along the 7 volt equipotential line?
Sunday, September 19, 2010 at 12:08am

College Chemistry
a)What is the theoretical yield for this reaction under the given conditions? b)What is the percent yield for this reaction under the given conditions? 1.41gH2 is allowed to react with 10.4gN2,producing 2.46gNH3
Saturday, September 18, 2010 at 8:37pm

College Physics
A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.2 cm from the center of the disk, what are the revolutions per minute (rpms) of the disk?
Saturday, September 18, 2010 at 7:40pm

math
to finance her community college education. Sarah takes out a loan for $2200. After a year Sarah decides to pay off the interest which is 4% of $2200. How much will she pay
Saturday, September 18, 2010 at 3:20pm

college
hello! i need help with homework sociology 1) Which of the following research errors is less prone to being classified as fraud and more likely to be considered as simply sloppy work? A) asking biased questions B) choosing a biased sample c)analyzing the data incorrectly d)...
Saturday, September 18, 2010 at 2:13pm

college-history
What parallels, or differences, can you identify between Athenian expansionism in the age of the Peloponnesian War and the contemporary career of the American republic?
Saturday, September 18, 2010 at 11:57am

college
I need to site from two essay one is the Famine,affluence,and morality(pete singer) and the other is Garrett hardin the Lifeboat. I have read both essay.Now I need to cite from them and put in apa format can some please help me
Saturday, September 18, 2010 at 11:27am

math
how do i solve for this question? Mr. Smith wants to save for his son's college education. If he deposits $300 each month at 10% compounded monthly, how much (to the nearest penny) will he have in the account after 14 years? Answer =
Friday, September 17, 2010 at 9:54pm

college
converting to base 10
Friday, September 17, 2010 at 5:54pm

college
what multiplies 225 and get answer 30 but what do you add together and get 225
Thursday, September 16, 2010 at 10:51pm

MATH
Axia College Material Appendix C Starting a Business Starting your own business can be exciting and daunting at the same time. Businesses use math when managing finances, determining production levels, designing products and packaging, and monitoring labor. A bakery can be a ...
Thursday, September 16, 2010 at 9:25pm

college algebra
Find the arc of the following: f(x)=x^2-8x+15 from x=4 to x=6
Thursday, September 16, 2010 at 3:59pm

College Economics
Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis. Here is the problem for ...
Thursday, September 16, 2010 at 2:34pm

physics
In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 90 , how much time elapses between the hit and the ball reaching the pitcher?
Thursday, September 16, 2010 at 9:54am

College Algebra
The problem is to find the domain of 2x+7 / x^3-5x^2-9x+18. I know that x^3-5x^2-9x+18 cannot = 0. What I can't remember is how to solve x^3-5x^2-9x+18 ≠ 0. Thanks!
Thursday, September 16, 2010 at 9:00am

College Chemistry
Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in each of the following: * calories removed to condense 125g of steam at 100 degree C to cool the liquid to 15 degree C * joules needed to melt a 525-...
Thursday, September 16, 2010 at 3:14am

college algebra
estimate, to the nearest tenth, the difference between the average number of awakenings during the night between 25-year-old men and 25-year-old women if women woke up 1.5 times and men woke up 3 times a night.
Wednesday, September 15, 2010 at 8:15pm

college
Caculate percent error of 10.92 and 10.43
Wednesday, September 15, 2010 at 5:44pm

College Physics II
If a capacitor has 3.84 μC of charge on it and an electric field of 2.22 kV/mm is desired if they are separated by 3.80 mm of air, what must each plate's area be?
Wednesday, September 15, 2010 at 3:55pm

College Physics II
Consider a region in space where a uniform electric field E = 7450 N/C points in the negative x direction. What is the distance between the +13.1 V and the +14.1 V equipotentials?
Wednesday, September 15, 2010 at 3:54pm

College Physics II
A charge of -4.191 μC is located at (5.100 m, 6.402 m), and a charge of 1.895 μC is located at (-1.436 m, 0). Calculate the electric potential at the origin There is one point on the line connecting these two charges where the potential is zero. What is the x-...
Wednesday, September 15, 2010 at 3:53pm

College Physics II
A uniform electric field of magnitude 203 V/m is directed in the negative y direction. A +12.5 μC charge moves from the origin to the point (x, y) = (19.5 cm, 51.8 cm). 1) What was the change in the potential energy of this charge? 2) Through what potential difference ...
Wednesday, September 15, 2010 at 3:01pm

Math(College Algebra)
I'm having trouble how to set up this math problem: Rebecca Herst received a year-end bonus of $17,000 from her company and invested the money in an account paying 6.5%. How much additional money should she deposit in an account paying 5% so that the return on the two ...
Wednesday, September 15, 2010 at 12:40pm

College Physics
A particle is moving in the xy plane with constant acceleration. At t=o, the particle is given by x=4m, y=3m, and has a velocity v=2m/s x-hat - 9m/s y-hat. The acceleration of the particle is given by a=4m/s^2 x-hat + 3m/s^2 y-hat. Find the velocity vector at t=2 seconds. My ...
Wednesday, September 15, 2010 at 12:27pm

College Physics
A 1200 kg airplane starts from rest and with a constant average forward acceleration of magbitude 5.0 m/s, reaches its takeoff speed in 9.00 s. The runway is 300 m long. What is the plane's takeoff speed?
Tuesday, September 14, 2010 at 10:55pm

Civics and Economics
what was the problem and solution in the Electoral College Compromise?
Tuesday, September 14, 2010 at 8:55pm

statistics
A sample of n = 5 college students yielded the following observations on number of traffic citations for a moving violation during the previous year. Calculate s2 and s. (Round all answers to four decimal places.) s2 = 1 s = 2
Tuesday, September 14, 2010 at 8:52pm

College Chemistry
Which of the following changes generally lead to greater reaction rates? (I)Increasing the temperature (II)Decreasing the concentration of a reactant or (III) adding a catalyst I know that change in temperature influences the reaction, in this case it speeds up and that adding...
Tuesday, September 14, 2010 at 7:04pm

College Chemistry
Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density of the solution? Express your answer in g/ml
Tuesday, September 14, 2010 at 6:59pm

Sam Sharpe Teachers' College
what is the importance of air in combustion
Tuesday, September 14, 2010 at 5:10pm

College Physics
A 3.0 kg black is at reat on a horizontal floor. If you push horizontally on the 3.0 kg block with a force of 12.0 N, it just starts to move. What is the coefficient of static friction?
Tuesday, September 14, 2010 at 3:33pm

college - chem
how do i find the amount of moles of H2O in a hydrate?
Tuesday, September 14, 2010 at 1:50pm

math
A magazine claims that 25% of its readers are college students. Of a random sample of 200 readers, 42 are college students. Use a .10 level of significance to test Ho: p =.25 and H1: p ≠ .25 Show the hypothesis test procedure.
Tuesday, September 14, 2010 at 10:29am

College Physics
A particle experiences a constant acceleration that is north at 100 m/s^2. At t=0, its velocity vector is 60 m/s east. At what time will the magnitude of the velocity be 100 m/s?
Monday, September 13, 2010 at 10:58pm

college: psychology
3. Define proactive & retroactive inhibition. Create a memory strategy to help you remember & discriminate between them. Explain this strategy well enough so that a reader could learn to use it.
Monday, September 13, 2010 at 10:11pm

college economics
Assume Nebraska and Virginia each have 100 acres of farmland. The following table gives hypothetical figures for yield per acre in the two states: Nebraska Virginia Wheat 15 5 Cotton 7 4 Who has the comparative advantage in the production of wheat? *For this answer, I think it...
Monday, September 13, 2010 at 12:27am

college inorganic chem
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
Sunday, September 12, 2010 at 10:27pm

business
Have you ever used mnemonics to remember something complicated? If so, describe the techniques you used. What ways might you use mnemonics to be a more effective college student and adult learner?
Sunday, September 12, 2010 at 9:15pm

college chem
What mass of sucrose should be combined with 524 g of water to make a solution with an osmotic pressure of 8.50 atm at 270 K? (Assume the density of the solution to be equal to the density of the solvent.)
Sunday, September 12, 2010 at 8:54pm

college algebra
What is 1.7^0.3326 = ?
Sunday, September 12, 2010 at 7:50pm

College Algebra
suppose that the area of a square is six times its perimeter. find the length of a side of the square
Sunday, September 12, 2010 at 7:12pm

college physics
A 12 kg rock sits quietly on a spring, having displaced the end of the spring 0.12 m. What is the spring constant?
Sunday, September 12, 2010 at 4:46pm

college physics
A diver begins a high dive with an angular velocity of 6.3 rad/s. By tucking himself into a ball, he decreases his moment of inertia by a factor of 9.0. What is his new angular speed?
Sunday, September 12, 2010 at 4:39pm

college physics
The plastic in a DVD disk will begin to deform at rotations faster than 10,000 revolutions per minute. How many radians per second is that? If the disk has a radius of 0.06 m, what is the centripetal acceleration at the edge?
Sunday, September 12, 2010 at 12:05pm

college
Calculate activities of Ca2+ anf F- and the solubility of flurite in pure water at 25C without regard to possible hydroysis. Assume that all activity coefficients are equal to one. Express the solubility of florite in terms of mol/L and g/100mL?
Saturday, September 11, 2010 at 9:01pm

college
100 kg car moving at 22 m/s runs into a horizontal spring with spring constant 4200 N/m. How far does the car displace the spring before coming to a stop?
Saturday, September 11, 2010 at 8:21pm

college Macroeconomics
Suppose that there is a temporary, but significant,increase in oil prices in an economy with an upward-sloping SRAS curve. If policy makers wish to prevent the equilibrium price level from changing in response to the oil price increase, should they increase or decrease the ...
Saturday, September 11, 2010 at 7:47pm

college physics
A box on a frictionless horizontal surface is pulled by a tension of 42.4N directed at 45 degrees above the horizontal. what is the work done on the box as it moves 2.50 meters along the surface?
Saturday, September 11, 2010 at 7:20pm

college physics
A box on a frictionless surface is pulled back a distance x into a spring with spring constant k and released. What is the formula for the kinetic energy of the box after it leaves the spring?
Saturday, September 11, 2010 at 7:18pm

College Anatomy
What are linear structures formed from chromatin?
Saturday, September 11, 2010 at 7:18pm

College Physics
A 50 kg skater moving at 5 m/s over frictionless ice grabs a rope stretched out 10m from a post and perpendicular to her path. She then moves in circles, spiraling inward as the rope wraps around the post. How fast is she moving when she is 2 meters from the post?
Saturday, September 11, 2010 at 7:16pm

college
explain why the graph of x + y = k cannot pass through the quadrant III if k > 0.
Saturday, September 11, 2010 at 5:26pm

college Macroeconomics
consider a country with an economic structure consistent with the assumptions of the classical model. Suppose that businesses in this nation suddenly anticipate higher future proftability from investments they undertake today. explain whether or how this could affect the ...
Saturday, September 11, 2010 at 5:19pm

college math
Given the situation described, identify the type of sampling involved. A parish in Louisiana is divided geographically into school districts. A random sample from each of the school districts is selected
Saturday, September 11, 2010 at 4:34pm

College Anatomy
What organelle produces spindle fibers during mitosis?
Saturday, September 11, 2010 at 4:07pm

College Anatomy
What are large and diverse groups of chemical substances that some cells store temporarily?
Saturday, September 11, 2010 at 4:05pm

College Anatomy
What organelle within B cells enlarges and becomes active as the cells are activated?
Saturday, September 11, 2010 at 4:03pm

College Anatomy
What organelle accumulates in the cells of those afflicted with Tay-Sach's disease?
Saturday, September 11, 2010 at 4:01pm

College Anatomy
Which of the organelles in a cell is most directly related to organic evolution? Why?
Saturday, September 11, 2010 at 3:41pm

college
370 papers need gradeed only 80% of them get done. How many ungraded papers will remain to be completed?
Saturday, September 11, 2010 at 2:14pm

college chemistry MEASURMENTS
some states have reduced the legal limit for alcohol sobriety from 0.10% to 0.08% alcohol by volume in blood plasma. a) how many mL of alcohol are in 3.0 qt of blood plasma at the lower legal limit? b)how many lL of alchol are in 3.0 qt of blood plasma at the higher legal ...
Saturday, September 11, 2010 at 1:37pm

Research and Statistics
5. The table below shows Psychology exam scores, Statistics Exam scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and statistics, and IQ and statistics? Using a web-calculator, obtain the ...
Saturday, September 11, 2010 at 10:39am

comp 155
Compare and contrast your abilities as an academic writer now as opposed to when you began at Axia College. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make in the future.
Saturday, September 11, 2010 at 2:45am

college art
please help me pick a favorite harlem Renaissance name of the picture date/time material used. and used for and symbolism
Saturday, September 11, 2010 at 12:43am

college
Are there certain curricular areas in which technology is more useful than in others?
Friday, September 10, 2010 at 8:40pm

College Chemistry
If you leave a glass of tap water out long enough, the water will evaporate and leave behind a white solid. Is this a chemical or physical change?
Friday, September 10, 2010 at 8:30pm

COLLEGE PHYSICS
A rocket is launched at an angle of 60.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile.
Friday, September 10, 2010 at 8:09pm

College Chemistry
A plant grows. Is that a chemical or physical change?
Friday, September 10, 2010 at 8:00pm

College Chemistry
If you leave a glass of tap water out long enough, the water will evaporate and leave behind a white solid.
Friday, September 10, 2010 at 7:59pm

College Chemistry
When you bake cake batter it solidifies. Is this a physical or chemical change?
Friday, September 10, 2010 at 7:58pm

College Chemistry
When two solutions are mixed, small bubbles are formed. Is that a chemical or physical change?
Friday, September 10, 2010 at 7:57pm

College Algebra
Help! Write the equation of the function that has a graph the shape of , vertically shrunk by a factor of 1/4 and shifted right 6 units. Write the equation of the function that has a graph the shape of y = „ x„ , reflected about the x-axis and shifted down ...
Friday, September 10, 2010 at 3:47pm

College Physics
A red car and a green car, identical except for color, move toward each other in adjacent lanes and parallel to an x-axis. At time t=0, the red car is at x sub r = 0 and the green car is at x sub g = 220m. If the red car has a constant velocity of 20km/h, the cars pass each ...
Thursday, September 9, 2010 at 8:16pm

college physics
a 1.50 kg. water is inside a cylindrical jar 4 cm. in diameter. what is the pressure at the interior bottom of the jar?
Thursday, September 9, 2010 at 12:37am

college physics
a glass container was filled with oil with a density of 0.80 g/cm^3 up to 9 cm. in height. 1) what is the pressure at the base of the container? 2) what is the pressure if depth is 3 cm. from the surface of the oil? 3) what is the pressure if depth is 4 cm. above the base?
Wednesday, September 8, 2010 at 11:48pm

college physics
a glass container was filled with oil with a density of 0.80 g/cm^3 up to 9 cm. in height. 1) what is the pressure at the base of the container? 2) what is the depth if 3 cm. from the surface of the oil? 3) what is the depth if 4 cm. above the base?
Wednesday, September 8, 2010 at 10:11pm

college physics
what is the mass of an 80 ml. acetone when the density of the acetone is 0.792 g/ml.?
Wednesday, September 8, 2010 at 10:05pm

College Chemistry
If the water initially has a temperature of 28, how many kilojoules of heat must be removed to cool and freeze the water at 0?
Wednesday, September 8, 2010 at 9:21pm

college chemitsry
calculate the calories needed at 0 C to melt 200. g of ice
Wednesday, September 8, 2010 at 8:30pm

College Basic Math
1 4/7 divided 4/10,then reduce to lowest terms
Wednesday, September 8, 2010 at 3:23pm

sociology
Using sociological imagination, analyze the scenary: Susy is a sophomore in college and get pregnant. Her boyfriend end up the relationship. Susy now drop all her classes
Wednesday, September 8, 2010 at 5:48am

college
a rock is dropped off a bridge. How fast is it moving when it hits the water 2.5s later?
Tuesday, September 7, 2010 at 11:38pm

College math
A circular water stain on your home ceiling had a diameter of about 4 inches across on Monday at 8 A.M. On Tuesday at the same time it was about 5.3 inches across. The unit for time is days. (1) Calculate the growth rate as a percentage to at least the nearest 10-thousandth ...
Tuesday, September 7, 2010 at 5:57pm

College Mathematics
You drove 2695 miles in 35 hours. (1) What is your average rate of change? (2) Suppose you can drive that distance at a legal 75 mile per hour rate. How long should it take you to complete the trip? (3) Suppose you are driving that distance at an illegal 86.8 miles per hour ...
Tuesday, September 7, 2010 at 1:50pm

College Mathematics
You are paid a modest retainer of $325 to be on call for one week each month. Your hourly pay rate is $18. You are scheduled to work 38 hours the week you are on retainer. Your employer is required to deduct a total of 22% from your pay. a) What do you expect to earn in your ...
Tuesday, September 7, 2010 at 1:37pm

College English
I submitted this yesterday and Ms. Sue thought I did well (except 7,11) but I still managed to get 4 wrong - and my mind is a mess trying to figure out where I went wrong! Please help - my mid is coming! >> represents my chosen answer. 1. Having studied small engine ...
Tuesday, September 7, 2010 at 3:20am

college chemistry
Calculate the amount of heat required to heat 80 grams of water from 10 to 53°C. The specific heat capacity for water is 4.184 J/g°C.
Tuesday, September 7, 2010 at 12:45am

College English
I have been pouring over this all day and would appreciate if someone could look this over for me with some good news... am I getting it? Gracias! >> represents my chosen answer. 1. Having studied small engine repair in night school, fixing the lawn mower was easy. ...
Monday, September 6, 2010 at 12:22pm

english
could i get this paragraph edited it is a biography in the form of a speech Good morning everyone, we have a special guest here today his name is James lore. Before he comes on, I will tell you a little about him. First off, James is a grade 12 student attending Medicine Hat ...
Monday, September 6, 2010 at 12:16pm

college physical science
how much would a 80.0kg person weigh on earth where the acceleration of gravity is 1.63m/s2
Monday, September 6, 2010 at 11:57am

college physical science
how much would a 80.0kg person weigh on mars if the acceleration of gravity is 3.93m/s2
Monday, September 6, 2010 at 11:55am

Math
A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?
Sunday, September 5, 2010 at 11:00pm

college
Mary's new shoes fell apart at the dance last night. What's the complete subject and complete predicate and the simple subject and the verb.
Sunday, September 5, 2010 at 10:58pm

college chemistry
According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
Sunday, September 5, 2010 at 4:48pm

Expository Essay Help
Another way to change these sentences "In conclusion, it takes discipline, time management, preparation, a computer, various tips, finances, and a desire to prepare for a major life change in going back to college for a degree. There are many things that a student needs ...
Saturday, September 4, 2010 at 2:34pm

College Chemistry
In this lab: we demonstrated the method of evaporation of a saturated sodium chloride solution. The following question ask: 1) why is sodium chloride chosen for the solute? 2)Suggest reasons why the following were not chosen for the solute? a)Calcium carbonate (CaCO3)= b)...
Saturday, September 4, 2010 at 2:42am

college
If the same amount of heat is supplied to sample of 10.0g each aluminum, iron,and copper all at 15 degrees celsius which sample would reach the highest temperature????
Saturday, September 4, 2010 at 1:16am

College chemistry
This is my first time taking chemistry and I am VERY VERY confused On the step involved to find out how many calories to warm 58mL of water from 10 degress C to 100 degress C and vaporize it at 100 degress C.
Friday, September 3, 2010 at 2:55pm

College Chemistry
This is my first time taking chemistry and I am VERY confused on the steps foe this problem! Kilocalories to condense 82g of steam at 100 degress C, cool the liquid and freeze it at 0 degress C.
Friday, September 3, 2010 at 2:52pm

college
Kilocalories to condense 82g of steam at 100 degress C, cool the liquid and freeze it at 0 degress C.
Friday, September 3, 2010 at 2:36pm

college
I need to know calories to warm 58mL of water from 10 degress C to 100 degress C and vaporize it at 100 degress C.
Friday, September 3, 2010 at 2:34pm

design
rewrite them using performance objectives/ 1. Understand how a car works 2. Know how to write a term paper using APA format 3. Comprehend the differences between mammals and reptiles 4. Know how to write a performance objective 5. Use JavaScript effectively on a Web page 6. ...
Friday, September 3, 2010 at 2:32am

college
Trains A and B are traveling in the same direction on perallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 2:10 A.M. if train B passes the same station at 2:22 A.M, at what time will train B ...
Thursday, September 2, 2010 at 6:51pm

college physics
A 3.00 kg ball is thrown vertically into the air with an initial velocity of 15.0 m/s. The maximum height of the ball is
Thursday, September 2, 2010 at 6:19pm

math (college algebra)
Ok I have two questions I have NO CLUE how to complete on my homework. Please help ASAP! (1) Solve the formula for the specified variable r = vx for r (the question is) v = ? a = 1/3f * p for f (the question is) f = ? (2) Solve the forulma for v S = D + vm (the question is) v = ?
Thursday, September 2, 2010 at 6:01pm

college
what quantity x of a 65% acid solution must be mixed with a 20% solution to produce 300 mL of a 45% solution
Thursday, September 2, 2010 at 1:26pm

College Physics - fixed again!
A positive and a negative charge are positioned as shown: + | |_______ - The distance from - to corner is 4.00m and the distance from corner to + is 3.00m. Q1 = 4.00 microCoulomb Q2 = -4.00 microCoulomb 1. What is the distance between the charges? 2. What is the angle of West...
Wednesday, September 1, 2010 at 9:15pm

College Physics - fixed
A positive and a negative charge are positioned as shown: + | - _______| The distance from - to corner is 4.00m and the distance from corner to + is 3.00m. Q1 = 4.00 microCoulomb Q2 = -4.00 microCoulomb 1. What is the distance between the charges? 2. What is the angle of West ...
Wednesday, September 1, 2010 at 9:14pm

College Physics
A positive and a negative charge are positioned as shown: + | 3.00 meters - _______| 4.00 meters Q1 = 4.00 microCoulomb Q2 = -4.00 microCoulomb 1. What is the distance between the charges? 2. What is the angle of West of south? 3. What is the force of + on -? 4. What is the ...
Wednesday, September 1, 2010 at 9:12pm

algebra 8..helppp
Educantion..Benjamin must have 120 credit hours of instruction to receive his college degree.Benjamin wants to graduate in 8 semesters without ettending summer sessions.How many credit hours must Benjamin take on average each semester to graduate in 8 semester? i don"t ...
Wednesday, September 1, 2010 at 6:37pm

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