Questions Asked on
July 10, 2010

physics
A space station, in the form of a wheel 110 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) that will
asked by laura 
Finance
Find the EAR in each of the following cases. Stated Rate (APR) Number of Times 8 % Quarterly % 16 % Monthly % 12 % Daily % 15 % Infinite %
asked by Carla 
Physic
What is the period of revolution of a satellite with mass m that orbits the earth in a circular path of radius 7820 km (about 1450 km above the surface of the earth)?
asked by Andrea 
physics  charge
A 80.0 g block carrying a charge Q = 33.0 µC is connected to a spring for which k = 74.0 N/m. The block lies on a frictionless, horizontal surface and is immersed in a uniform electric field of magnitude E = 4.84 104 N/C directed away from the spring and
asked by lo 
Finance
Investment X offers to pay you $6,000 per year for nine years, whereas Investment Y offers to pay you $8,000 per year for six years. If the discount rate is 5 percent, Investment X has a present value of ? and Investment Y has a present value of ?. If the
asked by Carla 
Finance
You have just won the lottery and will receive $1,000,000 in one year. You will receive payments for 30 years, which will increase 5 percent per year. The appropriate discount rate is 8 percent. What is the present value of your winnings?
asked by Brian 
operating system
Consider a system that uses pure demand paging. (a) When a process first starts execution, how would you characterize the page fault rate? (b) Once the working set for a process is loaded into memory, how would you characterize the page fault rate? (c)
asked by Anonymous 
Physic
A bowling ball weighing 71.2 N is attached to the ceiling by a 3.60 m rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured
asked by Andrea 
Conceptual Physical Science
When we breathe we inhale oxygen, O2, plus water vapor, O2, and exhale carbon dioxide, CO2, plus water vapor, H2O. Which likely has more mass, the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight?
asked by Laticia 
Physics
The fast French train known as the TGV (Train à Grande Vitesse) has a scheduled average speed of 216 km/h. (a) If the train goes around a curve at that speed and the acceleration experienced by the passengers is to be limited to 0.060g, what is the
asked by Sam 
Finance
Suppose an investment offers to triple your money in 12 months (don't believe it). What rate of return per quarter are you being offered?
asked by Brian 
CHEMISTRY
How many grams of CH4 are required to produce 43 g of Cu according to the following equation: 4CuO + CH4 > CO2 + 2H20 + 4Cu? I already tried to work the problem myself, and I may have gotten this right, but I do not have an answer key to compare to.
asked by Casey 
Physics
The mass of a sports car is 1100 kg. The shape of the car is such that the aerodynamic drag coefficient is 0.240 and the frontal area is 2.40 m2. Neglecting all other sources of friction, calculate the initial acceleration of the car ,if it has been
asked by Simi 
Physics
In a cyclotron (one type of particle accelerator), a deuteron (of atomic mass 2.00 u) reaches a final speed of 12.0% of the speed of light while moving in a circular path of radius 0.565 m. The deuteron is maintained in the circular path by a magnetic
asked by Simi 
Chemistry
What is the % by mass of chlorine in CH2Cl2? I calculated the molar mass of CH2Cl2 which is 84.93. I than calculated the molar mass of Cl2 which was 70.9. Than I divided 70.9 by 84.03 and my percent by mass of chlorine is 83.5 percent. Is this correct?
asked by Casey 
EARTH SCIENCE
Discuss the distribution of seafloor sediments in the ocean basins. What are the different types of sediments? What are the factors that control their distribution (geologic setting, climate, etc.)?
asked by Anonymous 
Physic
An unstretched spring is 11.0 cm long. When you hang an 590 g weight from it, it stretches to a length of 14.0 cm. what is the force constant in (N/m) of this spring? what is the total mass must you hang from the spring to stretch it to a total length of
asked by Andrea 
physics
A boy whirls a stone in a horizontal circle of radius 1.9 m and at height 2.1 m above ground level. The string breaks, and the stone flies horizontally and strikes the ground after traveling a horizontal distance of 10 m. What is the magnitude of the
asked by Sam 
Finance
If you deposit $4,000 at the end of each of the next 20 years into an account paying 11.2 percent interest, you will have $ in the account in 20 years. How much will you have if you make deposits for 40 years? $
asked by Carla 
Physic
A hockey puck leaves a player's stick with a speed of 8.60 and slides 38.0 before coming to rest. Find the coefficient of friction between the puck and the ice.
asked by Andrea 
algebra
We did not find results for: suppose a company manufactures MP3 players and sell them to retailers for $98 each. it has a fixed cost of $262,500 related to the production of the MP3 players and the cost per unit is $23 what is the total revenue function,
asked by tracy 
finance
Julie's XRay Company paid $2.00 per share in common stock dividends last year. The company's policy is to allow its dividend to grow at 5 percent for 4 year and then the rate of growth changes to 3 percent per year from year 5 and on. What is the value of
asked by lynne 
physics  capacitors
Capacitors C1 = 5.0 µF and C2 = 2.0 µF are charged as a parallel combination across a 150 V battery. The capacitors are disconnected from the battery and from each other. They are then connected positive plate to negative plate and negative plate to
asked by lo 
chem
An airplane is pressurized to 650mmHg , which is the atmospheric pressure at a ski resort at 1.30×10^4 altitude.If air is 21 % oxygen, what is the partial pressure of oxygen on the plane?
asked by andy 
math
how tall is a flag pole when a person is standing 12 meters away and he is 1.5 meters tall and casts a shadow 3 meters long?
asked by Marpaq007 
Chemistry
The density of Hg is 13.6g/cm^3. How many Hg atoms are present in 10.0cm^3 of Hg? I think the size of an atom is 6.22 x 10^23. The answer is 4.08 x 10^23. I need help getting to the answer.
asked by Casey 
Math 115
Please check answer. The sale tax rate in a state is 7.5%. If you pay a tax of $17.50 on an item that you purchase, what is its selling price? 17.50*7.5=$131.25 is this correct?
asked by Jerome 
Chemistry!
Use the equation below and determine what volume of O2 at STP is needed to react with 1.5 moles of C2H4? Balanced equation: C2H4 + 3O2 > 2CO2 + 2H20 So 1 mole of C2H4/3 mol O2 > 1.5 mols/ 4.5 mols O2. So if its 1 mol equals 1 liter, than it should be
asked by Casey 
maths
The last digti of a sixdigit number it 2. If the 2 is moved to the start of the number, the new sixdigit number is only a third of the original number. Find the original number. 2 A B C D E X 3 = A B C D E 2 NOTE: PLS DON'T CONFUSE X WITH x. IT IS A
asked by sweet 
EARTH SCIENCE
If the warm North Atlantic Drift were to cease, how might the climate of Western Europe change?Speculate about how such a climate could influence the biosphere? help me please.
asked by Anonymous 
chem
What is the total pressure in mm Hg of a gas mixture containing argon gas at 0.25 atm helium gas at 350 mm,Hg, and nitrogen gas at 360 torr.
asked by andy 
Physics
After flying for 15 min in a wind blowing 42 km/h at an angle of 34° south of east, an airplane pilot is over a town that is 40 km due north of the starting point. What is the speed of the airplane relative to the air?
asked by Sam 
Mec 123
A flywheel rotating at 5.3 revolutions per second has an angular retardation of 4/5 radian per second per minute.calculate:(i)its angular velocity after 45 seconds(ii),the number of revolutions it makes in 1 minute, and in coming to rest.
asked by dan 
chem
What is the volume in liters of 3.2 moles methane gas, CH4, at 12degrees C and 1.52 atm?
asked by andy 
Math 115
How do convert 4 7/8 into a percentage. Is tis correct 7/8=0.875*4=3.5%
asked by Jerome 
Conceptual Physical Science
What is the approximate mass of an oxygen atom in atomic mass units? What is the approximate mass of two oxygen atoms? How about an oxygen molecule?
asked by Laticia 
psychology
The primary difference between anorexia nervosa and bulimia nervosa is that anorexics
asked by fred 
health
Write a 300 to 400 word essay describing major differences between the duties, functions, and responsibilities of local, state, and federal law enforcement agencies.
asked by Anonymous 
statistics
Give an estimate for each expression in Exercises, Then state whether you believe that the exact answer is greater than or less than the estimate. Explain how you decided. Use a calculator to check the accuracy of your estimate. 978 X 66
asked by Dani 
physics
1) What part of an object follows a smooth path when the object is made to spin through the air or across a flat smooth surface? 2) Describe the motion of the CG of a projectile, before and after it explodes in midair. 3) What is suggested by a star that
asked by anonymous 
Algebra1A
A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate volume of the resulting box?
asked by Janelle 
trigonometry
Find the length of the arc that subtends an angle of measure 70 degrees on a circle of diameter 15 centimeters.
asked by Aaron 
algebra
Is this equation correct: (x y)3 = x y3 ? Explain why. If it is correct, how can you prove this? If it is incorrect, what should be done to make it right?
asked by susan smith 
english
Can you please tell me when following the APA citation format what do you put if there is not an author shown? I thought from another class we wrote Unknown, but my current teacher wrote not to do that.Can I not use that reference then?
asked by Danielle 
Geography
Hello! I am writing a 700 word paper over sedimentary rocks. So far I have had no problems finding what I need, but I'm having trouble finding information on the distinguishing characteristics between the three categories of sedimentary rocks; clastic,
asked by anonymous 
HCS 320
describe the national incident command structure i am supposed to do this on a disaster planning presentation and i need help ive been just so busy and this is due today i just need a little help or push in the right direction to get me started because im
asked by samatha URGENT 
programming
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a homework question I have to solve this is how the question is written on my paper...can you please help, Thanks. Homework question:
asked by Jason 
psychology
Summarize the multifactorial model and how it relates to the diagnosis of illnesses. • Select two health problems discussed in the text. • Explain what role psychology has played in understanding and managing these two health problems.
asked by lo 
physics
1) What part of an object follows a smooth path when the object is made to spin through the air or across a flat smooth surface? 2) Describe the motion of the CG of a projectile, before and after it explodes in midair. 3) What is suggested by a star that
asked by anonymous 
Physic
How many kilometers would you have to go above the surface of the earth for your weight to decrease to half of what it was at the surface?
asked by Andrea 
math
what is the sqare root of =9?
asked by lidia 
English
1.)The wellkept man was naive to have not noticed the grubbylooking child had stolen his wallet. 2.)The wellkept man was so naive that he did not notice the grubbylooking child had stolen his wallet. Which of these sentences is written better? Is there
asked by Susan 
physics
1) What is the effect of adding a weight to the end of a baseball bat used for practice swings? 2) What does it mean to say that angular momentum is conserved? 3) If a skater who is spinning pulls her arms up so as to reduce her rotational inertia to two
asked by anonymous 
xacc 280
I just need an example • What increases the Asset account, a debit or a credit? • What decreases the Asset account, a debit or a credit? • What is the normal balance of the Asset account, a debit or a credit? Account Changes Account Categories What
asked by stacy 
chemistry
can anyone explain to me this i don't understand it. Radicals Certain groups of different atoms will join together and act as a single unit when forming compounds. Such a group of atoms is called a radical. In the compound calcium carbonate, written CaCO3,
asked by me 
ENG 101
I am wandering if my answers and rationale are correct. The capital X denotes my chosen answer and my rationale follows the statement choices. Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the
asked by Paul 
Microsoft Word
Help! I pushed the wrong key, I guess. I think I clicked on the cursor when it was at the "measure bar at the top of the page that displays "1...2...3..4.." I have a paragraph written. I want to indent the second line. The first word on the second line is
asked by M.A. 
algebra
solve by square root property (8x3)squared=5
asked by david 
chemistry
what is the freezing point of pure acetic acid being stirred and not being stirred. also at what point does it become a solid then a liquid, and vice versa.
asked by jillian 
physics
1)How can the CG of an irregularly shaped object be determined? 2) What is the lever arm of a force? 3) In what direction should a force be applied to produce maximum torque?
asked by anonymous 
Chemistry
Last one I promise! Thankyou for bearing with me. This seems simple enough, but chemistry genuinely makes me feel retarded so I appreciate reassurance. How many molecules of CH4 are there in 48.2g of the compound? I'm assuming that I should just divide
asked by Casey 
programming
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a homework question I have to solve this is how the question is written on my paper...can you please help, Thanks. Homework question:
asked by Jason 
7th grade
How do you interview a character in a book?
asked by Kira 
english
List the characters in the story. Write one to two sentences on the defining characteristics of each one, providing at least one citation to illustrate your comments. Why do you think the story is called "A Very Old Man with Enormous Wings" rather than "An
asked by krystal 
Algebra 2
What would the expression x^6/11 be simplified?
asked by Ana 
Algebra 2
How do I solve this radical equation? 3 + (2x√3) = 5
asked by Ana 
math
12 squared is between 45,56, 67, 78
asked by Norma 
psychology
studies on the development of sexual orientation highlight the importance of what
asked by fred 
microeconomics
utilize your knowledge of supply/demand analysis and show graphically the impact of a government minimum wage of $6 hour with a market wage for unskilled workers of $7 hour with 1 million workers employed at the market wage.
asked by jessica 
hardware
What is the maximum frequency output for a square wave from the HP 33120A Waveform Generator? I found the HP 33120A Waveform Generator on the Agilent website but I'm not sure how to figure out the problem.
asked by Shawn 
economics
Which economic system is used to handle a crisis of epic proportions, such as natural disaster?
asked by Wendy 
statistical applicatons
Why is it important to learn what sample size was used in a study in which no statistica difference was found?
asked by Jerry 
SHSAT
Louis attended some baseball games this past summer. The last four games he attended were at the shea stadium. All but five games he attended were at the Yankee Stadium. All but five games he attended were at the Yankee Stadium. At least three games he
asked by pavleen 
Grammar
1.I wrote on my journal while I listened to (softly, soft) music. 2.Classes at SEO go by so (slow, slowly) during the summer. 3.As she presented her work, her voice sounded (different, differently).
asked by LaLy 
physics
The value of g at the Earth's surface is about 9.8 m/s2. What is the value of g at a distance from the Earth's center that is 9.5 times the Earth's radius?
asked by anonymous 
MATH
Perform the indicated operation then determine the reciprocal: 4(3)2 ÷ (7x4+3)
asked by Norma 
math
Find m„£a and m„£b. A) m„£a ƒ 120„a ; m„£b ƒ 60„a B) m„£a ƒ 60„a ; m„£b ƒ 120„a C) m„£a ƒ 110„a ; m„£b ƒ 70„a D) m„£a ƒ 80„a ; m„£b ƒ 100„a
asked by Norma 
Grammar/Punctuations
can you please tell me if this passage is correct? I am looking for 20 grammatical errors... what am I missing? Why are great numbers of students (student’s) choosing to pursue their college degrees using their home computers. (?) Benjamin Franklin said;
asked by Lindsey 
Algebra 1
In a 306090 triangle, if they give me b=15, what would be a & c?
asked by Ana 
chemistry
with the numbers 3, 7, 10 & 12 how you you make up the number 800 using different functions?
asked by samantha 
math
identify the slope and yintercept of equation 2xy=5
asked by rally 
Math (Algebra)
How do you simplify the following fraction; 72  68 I know the answer is 18  17 What I do not know is how this is the answer.The example I looked at did not tell me how it came to the answer. What do I do to find the answer?
asked by Lynn 
math
Is 24 between A) 4 and 5? B) 5 and 6? C) 6 and 7? D) 7 and 8?
asked by Norma 
calculus
How do I draw the derivative of a function
asked by lou 
math
what is the slope of y= 1/3x+4
asked by rally 
AED
Explain why this statement is true: when simplifying rational expressions, we must cancel factors only, and not terms. Give an example using just numbers.
asked by Lori 
IDEA Act
Determine how IDEA 2004 affects diverse learners. I am having troube with this question. Can anyone help me?
asked by Joe 
Physics
Calculate the force required to pull a copper ball of radius 2.00 cm upward through a fluid at the constant speed 9.00 cm/s. Take the drag force to be proportional to the speed, with proportionality constant 0.950 kg/s. Ignore the buoyant force
asked by Simi 
math
what is the value of 9090/90 in decimal
asked by pavleen 
health
What would be a strength and a weakness for the center of disease control?
asked by erica 
math
what is 20 mpercents of 5
asked by Anonymous 
programming
I am in a beginners class in computer programming and we have been designing our programs in pseudocode format and this is a homework question I have to solve this is how the question is written on my paper...can you please help, Thanks. Homework question:
asked by Jason 
algebra
find m
asked by Norma 
Calc 2
Solve the following separable equation. y'=(4x^31)/y for y(1)= 3
asked by Marianne 
Chemistry
I cannot figure this out. It seems so simple, and I should know it. The density of tungsten is 19.3g/cm^3 Express this value in lb/ft^3. I did 19.3g/cm^3 x 2.54cm/inch x 12 inches/1 foot = 588.264. Now 19.3g x 1 ounce/28g x 16 ounces/lb. = 11.03. After
asked by Casey 
English Literature
Are there any other wars that have been fought over the love of a woman besides Helen of Troy, preferably fact. Thanks,
asked by Michelle