Tuesday
July 29, 2014

Posts by tina


Total # Posts: 980

statistics/ Ho and Ha?
* I just wanted to know if I'm setting up the Ho and Ha correctly. An herbal supplement is advertised as producing an increase in strength and stamina. Sample of n=36 adults is obtained and each person is told to take the regulary daily dose of the herb for 30 days. At the...

reading/writing
Jews fast to show God that they are sorry for their sins and to ask for forgiveness. Should the prisoners in the Holocaust fast? list three reason.

chemistry
oh, i think i get it. thank you.

chemistry
for the reaction: 4NH3+5O2=4NO+6H2O; 15.0g of NH3 and 27.5g of O2 were reacted. a). which is the limiting reactant? b).how many moles of NO are formed from the limiting reactant in the above reaction. i know how to do the moles but i couldnt figure out which one is the limitin...

chemistry
i know how to do the moles but i couldnt figure out which one is the limiting reactant. to do the moles first i figured out the molecular weight for NO(30.01). but i dont understand what the mass in grams will be.

chemistry
for the reaction: 4NH3+5O2=4NO+6H2O; 15.0g of NH3 and 27.5g of O2 were reacted. a). which is the limiting reactant? b).how many moles of NO are formed from the limiting reactant in the above reaction. what would be the first step in this problem?

chemistry
the number of molecules in 6.843*10^-2 kg of Al(NO3)3 is: and this is what i have done so far... 1st i converted the kg to g which is 6.843*10^-5. then i figured out the moles:6.843*10^-5/213.01 i got 3.21*10^-7. i then multiplied this number by avogadro's number(6.022*10^...

chemistry
ok, i got this for a)68.376 g and b) 0.064 Molars. is it correct?

chemistry
hi, i was wondering if anyone could help me with this problem? i am having some difficulty with it. thanks. a).how many grams of Al(NO3)3 are needed to prepare 300mL of a 1.071 M solution? b).if you further dilute this 300mL to a new final volume of 5.0L, calculate the final m...

Behavioral Science
I have a assignment du and kind of confused after reading the text the assignment is write 700- to 1,050-word essay in which you compare and contrast the influence of heredity and hormones on human behavior. I am not sure exactily how to start this paper to me I believe that h...

Writing
he lured her into the dark

English
go ahead!

why won't anybody help me
you put it in a typewriter

physics#46
We know that the source of a sound wave is a vibrating object. What is the source of an electromagnetic wave?

physics#36
Can an efficient transformer step up energy? Defend your answer.

physics#30
Why dosen't a transformer work with direct current? why is ac required?

physics #26
How dose the current in the secondary of a transformer compare with the current in the primary when the secondary voltage is twice the primary voltage?

physics #22
A length of wire is bent into a closed loop and a magnet is plunged into it, inducing a voltage and,consequently, a current in the wire. A second lenghtof wire, twice as long, is bent into two loops of wire, and a magnet is similarly plunged into it. Twice the voltage is indu...

sociology
How does modernization manifest itself in U.S. society? Use one of the modern theorists introduced in Ch. 16 as a basis for your response. This is a homework question could someone explain to me what the teacher might be wanting manifest to me is how I see what modernization h...

modernization
I need four examples of modernization I have two I believe any suggestions Examples of modernization the how the increased speed of communication through computer technology verses the Old fashion writing style. The way we used to have to ride a horse or even walk to where we ...

physics
two charged particles are projected into a magnetic field that is perpendicular to their velocities. if the particles are deflected in opposite directions, what dose this tell you about them?

physics
when preparing to undergo an MRI scan, why are patients advised to remove eyeglasses, watches, jewelry, and other metal objects?

physics
what is the magnetic effect of placing two wires with equal but oppositely directed currents close together or twisted about each other?

PHYSICS
a MAGNET CAN EXERT A FORCE ON A MOVING CHARGED PARTICLE, BUT IT CAN NOT CHANGE THE PARTICLE'S KINETIC ENERGY. WHY?

English
hi

physics
manet A has twice the magnetic field strength of magnet B (at equal distance ) and , at a certain distance,it pulls on magnet B with force of 50n. with how much force, then dose magnet B PULL ON MAGNET a?

physics
the north pole of a compass is attracted to the north magnetic pole of the earth, yet like poles reple. can you resolve this apparent dilemma?

physics
A dip needle is a small magnet mounted on ahorizontal axis so that it can swivel up or down like a compass turned on it's side) where on earth will a dip needle point most nearly vertically? where will it point most nearly horizontally?

algebra
a long distance runer started running a course, running at an average speed of 2 mph. 1.33 hrs later, a cyclist travelde the same course at an average speed of 4 mph. how many hrs after the runner started did the cyclist overtake the runner? round answer to the nearest tenth.

Math
Can someone explain to me how to do capacity

physical
name five benefits to health through physical trainning

Human Resource Management
I need to make a recommendation analysis of how large firms and small firms could utilize change management concepts to meet growing technology needs. I need to provide one example for a large company and one for a small company of necessary changes resulting from these growin...

e r murrow
who am i i am not a doctor ,but my name is surgen .from the bklyn aquarium

sociology
what are the concepts of conflict theory?

Atoms. Atoms.
YOU DISCOVERED A NEW ATOM! WOW, EVERYONE AT YOUR LAB IS IMPRESSED!! SOME ARE SAYING YOU MAY BE NOMINATED FOR THE NOBEL PRIZE IN MEDICINE!!! IF THIS IS GOING TO HAPPEN, YOU HAVE TO FIND OUT AS MUCH ABOUT THE ATOM AS YOU CAN, AND YOU DON’T HAVE LONG TO DO IT. THE LAB WAS CL...

Topics For A Ballad
Does anyone have any ideas for a funny topic for a ballad? Thanks in advance :)

english
discuss how the methaphor of death operate in james joyce's " the dead" and/or Chinua Achebe's "dead men's path" with specific reference to culture identity

english
what is the significance of jack london's portrayal of the man and the dog in " to build a fire" and how does it relate to naturalism?

Ecology help me please.
Explain how the world would be different if C4 plants and CAM plants had not evolved.

BIO HELP! Light Reactions + Calvin Cycle
Explain why the light reactions and the Calvin cycle are dependent on each other.

Human Resource MGT
Write a paper recommending to a company's board of directors that affirmative action policies be implemented. It should be 700-1050 words in length and formatted according to APA guidelines. Include points supporting the recommendation and clearly address points that may b...

micro economics
Consider a firm that has a fixed cost of $60 a minute. output=1, Variable Cost= $10 what is the fixed cost?, Total Cost? Marginal cost?, AFC?, AVC? and ATC? Output is 2? Can't quite figue it out... thanks

CHEM
Try this formula P1(V1)/T1=P2(V2)/T2

math
If you are traveling 100 miles and the car you are driving has tires with a radius of 14in. How many revolutions of each tire occurred in your trip?

geometry
-8(4+9x)=7(-2-11x)

Financial Calculator
Hi, I have trouble using my financial calculator, Texas Instrument BA II Plus. For the reason, the setting is messed up and it won't give me the right answer. For example, if I press: 100 PV 4 N 4 I CPT FV It's supposed to give me the anwer of 116.99, but I get -101.34...

Finance; Stock Valuation
Early in 2007, Inez Marcus, the chief financial officer for Suarez Manufacturing, ws given the task of assessing the impact of a proposed risky investment on the firm's stock value. To perform the necessary analysis, Inez gathered the following information on the firm'...

geometry
Given mÐ 1 + mÐ2=90, what can we conclude? Well, if the angles are in a triangle, the other angle is 90 degrees, which makes the triangle a right triangle.

Economics
What is the lowest value of economic profit that the firm must earn if it is to keep its resources in the current industry?

Mathematics
sqrt 6 * sqrt 8 also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So you can see the steps — sqrt 6 * sqrt 8 = sqrt 48 sqrt 7 * sqrt 5 = sqrt 35 I hope this helps a little more. Thanks for asking.

Math Help
the square root of 3 times the square root of 15 also the square root of 18 times the square root of 3 To multiply square roots: sq rt of z times the sq rt of y It would be the square root of zy The first one is 3x15 = 45 So it's the square root of 45. Think you can figur...

algebra2
Solve each of the following quadratic equations. can some explain how to do these kinds of problems 4x^2=13x+12 i believe if i am understanding this i am supose to add to where i get =0 4x^2-13x+12=0 now what do i need to do I am thinking factoring but I am not sure how to do ...

s.s.t
I,want to prepare a model of s.s.t about golden temple.I want to know how can I prepare it. Thank you for using the Jiskha Homework Help Forum. Please explain exactly what you mean by "s.s.t." because I'm sure you do not mean "Super Sonic Transport!" Is...

Math
How do you find surface area? well all you have to do is first find the pythagorom (if that is how you spell it)of the triangle then you have to find the area of everything else. ONce you are done then you have to add up all of the sides areas. After that you then get your ans...

finances
Joe won a lottery jackpot that will pay him $12,000 each year for the next ten years. If the market interest rates are currently 12%, how much does the lottery have to invest today to pay out this prize to Joe over the next ten years? Mary just deposited $33,000 in an account ...

personal finance
Compare a regular cash dividend with a periodic share repurchase. Which has greater appeal to you? Explain. Explain a stock dividend and further explain if you would prefer it to a cash dividend. What are stock splits and how desirable are they? In your own words, post a respo...

Anatomy
Describe the mechanisms that permit the movement of each of the following substances into the cell water glucose oxygen protein http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/D/Diffusion.html

Anatomy
Destribe the mechanisms that permit the movement of each of the following substances into the cell water gluteincose oxygen pro water glucose oxygen protein

Anatomy & physiology
Describe the passage of a protein molecule from its origin on a prtion of the rough endoplasmic reticulum to the secretion out of the cell. http://en.wikipedia.org/wiki/Endoplasmic_reticulum

math
The circumference of a sphere was measured to be 86 cm with a possible error of 0.2cm. Use differentials to estimate the maximum error in the calculated surface area. Please round the answer to the nearest tenth. What is the relative error in the calculated surface area? Pleas...

math
Atmospheric pressure V decreases as altitude h increases. At a temperature of the pressure is 101.1kilopascals kPa at sea level, 86.4 kPa at h = 1 km, and 77.1 kPa at h = 2 km. Use a linear approximation to estimate the atmospheric pressure at an altitude of 3 km. Please round...

math
Find an equation of the line through the point that cuts off the least area from the first quadrant. Please enter your answer in the slope-intercept form. What were the coordinates of the point? (4,16)... sorry about that.. thanks!

History
the stock market crash weakened the nation's banks because of what? I THINK it is because people had borrowed money to buy stocks and when the market crashed people couldn't repay their debts. There was also a 'run' on the banks from people who had put money in...

History
Explain America's foreign policy following the spanish-american war? http://www.google.com/search?q=foreign+policy+after+spanish+american+war&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA There are several websites in here that discuss thi...

chem
An automobile burns 65 grams of gasoline over 20 minutes. The gasoline combines with 100 grams of oxygen in this reaction, to form carbon dioxide and 47 grams of water. How much carbon dioxide is formed? do I use the heat capacity equation? How much oxyen is used to produce 47...

math help
could some please check to see if i got the right answers if not i will try again 1. Find the rate 392 feet/8 seconds A: 49 ft/s 2. Carlos works 8.25h and receives $102.30 pay What will he receive at the same rate if he worked 14 hrs? A: $173.60 3. A baseball team wins 11 of i...

HELP
3. Page 213 #18 6,-5 4. Page 222 #24 4x+3=4 5. Page 223 #54 The y intercept is -4 and the line whose equation is 2x+5=8 6. Page 233 #24 Passing though(-2,-5) 7. Page 233 #52 Passing though (-4,2) and perpendicular to the line whose equation y1/3x+7 8. Page 233 #54 Passing thou...

math,algebra,help
3y divided by 7

writing a memo
when writing a memo in apa format do you use just citation in your memo and not havae a refernce page? I have never heard of the need for APA or MLA or any other citation guidelines needed in memos. For proper reference and citation, there are two elements needed: a Works Cite...

Early Childhood Education
Investigating the bugs the two children found on the playground and finding books to identify them instead of doing your scheduled science lesson for the day is an example of: integrated learning or relevant learning Would this be an example of relevant learning? Most likely s...

ethics
I understand why they want us to work on the gist of this assignment. It is important to understand the diversity of the different races and ethnic groups in this nation and world. I do not, however, understand how they can expect us to understand specific groups within a week...

science/biology
how many years do 9 year old girls have iregular periods? at what age a woman's period stop? PLEASE HELP ME WITH THE HOMEWORK THANK YOU! i'm pretty positive there is not an exact age or amount of years-- are you supposed to have a time frame?

Chemistry - Hybridization
how to calculate the hybridisation of a molecule in simple and detailed way

math
at 7:00am joe starts jogging at 6 mi/h. at 7:10 am ken starts after him. how fast must ken run to overtake joe at 7:30am? If Joe runs at 6 mi/hr for 30 minutes (7:00 to 7:30), his distance traveled is 6 mi/hr x 0.5 hr = 3 miles. Ken starts at 7:10 and runs until 7:30 for a tim...

physics
A 110g hockey puck sent sliding over ice is stopped by a frictional force on it from the ice a) if its intial speed is 6.0m/s, what is the magnitude of the frictional force? b) what is the coefficient of friction between the puck and the ice? I am unsure how to solve the first...

Chemistry
Balloon- CO2 Balloon- O2 Balloon- He Balloon- N2 Balloon- CH4 Represented above are five identical balloons, each filled to the same volume at 25 degrees Celcius and 1.0 atmosohere pressure with the pure gases indicated. A) which balloon contains the greatest mass of gas? expl...

Please help----
When it requires de-emphasis, non-essential material in a sentence is set off by a what? pair of parentheses or a colon THANK YOU!!! Here are explanations for the uses of these marks of punctuation: Colon: http://grammar.ccc.commnet.edu/grammar/marks/colon.htm Parentheses: htt...

making dot arrays
i dont no

AXIA STUDENT
HEY I SEE WHERE I CAN HANG A GET A GOOD LAUGH THANK YOU ALL ......AND HELLO TO ETH 125 WE HAVE TO HANG IN THERE

words
can you help with this 100 s on a s and l b 0 p l h Please rewrite you question in mathematical form. its not maths it a saying or phrase. the letters represent words yes it is

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