Tuesday
July 29, 2014

Posts by hana


Total # Posts: 59

physics
A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?

math help
2 1/2

Child day care management
A2006 survey stated that youngsters ages 12-17 who were left home three or more days

Child day care management
One can encourage children to engage in sociodramatic play by

Child day care management
I need to check my answers for exams number 00385300 working with school-age children

Child day care management
To determine liability one must figure out who is legally

Chem
Which of the following will be more soluble in an acidic solution than in pure water? SrSO4 CsClO4 CuCN Ni(OH)2 AgCl Please help explain why! I've tried submitting the ones that are insoluble in water and it was wrong. I know it has something to do with basic anions but I...

Chemistry
Ba(OH)2 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.700 M Ba(OH)2 solution. I know that Ba(OH)2 -> Ba + 2OH But how do I determine the concentrations? I feel like I am making this more complicated than need be

marketing
How to make segmentation for a healthy food restaurant ?

physics!
A truck driver travels a distance of 100 miles due East. He then turns at an angle of 35 degrees S of E and travels a distance of 50 miles. What is the resultant displacement? What is the direction?

dara
the volume of a cube increases at average of 24cm^3 /min while it's length increases 2 cm/min

english(easy!) my mind cant decide :(
didn't she stay in with the Queen in the beginning?

english(easy!) my mind cant decide :(
what is the setting for Disney's Snow White and the Seven Dwarf?

math
thank you

math
the population of Smallville in the year 1890 was 6250.assume the population increased at a rate of 2.75% per year. predict when the population reached 50,000 I'm not suppose to use logs to find the answer :(

MATH!
the 2000 population of Jacksonville,Florida was 736,000 and was increasing at the rate of 1.94% each year. At that rate, when will the population be 1 million?

math
Describe how to transform the graph of f into the graph of g. f(x)=2^x and g(x)=2^x-3 I don't know how to do this step by step :(

MATH
Describe how to transform the graph of f into the graph of g. f(x)=2^x and g(x)=2^x-3

physics
A girl goes 4 avenues east{.8 miles), then 24 streets south(1.2 miles), the n 1 avenue west(.2 miles), and finally 8 streets north(.4 miles). -what distance did she travel? -what is her resultant displacement?

physics
Q=mHf =0.25x3.34x10^5=83500J

math
Find the surface area of a rectangular prism with a length of 10 cm, a width of 4 1/2 cm, and a height 8 3/4 cm. Round your answer to the nearest hundredth.

chemstiry
titration of 25ml of Na2CO3 with 0.352mol/l HCl of 15.2ml what is the molar concetraion of sodium carbonate

Environmental Science
How can I relate the Fourth Principle of Ecosystem Sustainability to: d. medicine:

Environmental Science
How can I relate the Fourth Principle of Ecosystem Sustainability to: c. biotechnology:

Environmental Science
Relate the Fourth Principle of Ecosystem Sustainability to: d. medicine:

Environmental Science
Relate the Fourth Principle of Ecosystem Sustainability to: c. biotechnology:

Environmental Science
Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species

Environmental Science
Can someone please help me with this question because when I post this question earlier, some lady or tutor just gave me some links on where to find the answer and I had already did that and still couldn't find an answer? Here it is. Relate the Fourth Principle of Ecosyste...

Environmental Science
Relate the Fourth Principle of Ecosystem Sustainability to: a. endangered species:, b. agriculture:, c. biotechnology:, d. medicine:

Science
why can't you use Carbon to extract Aluminium? and How do you extract Aluminium using elecrolysis?

Statistics
What Z value corresponds to the lowest 20% under a normal curve

Grade 11 math
yes

Physics
how

french
on regarde le match? -------------------- on marche sur la corniche? ------------------------ on parten voiture? ---------------- on va aila tour du caire? ---------------------- je fais une excursion au fayoum? -------------------------------- nous de'jeunons au restauran...

CHEMISTRYYY
A hydrated aluminium sulphate A12(SO4)3.xH2O, contains 8.10% of aluminium by mass. Find the value of x

chemistry
Calculate the Calorimeter Constant if 25 g of water at 51C was added to 25 g of water at 25C with a resulting temperature of 35C?

physics
A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m....

spanish
regreso - singular yo form desayunamos - plural form for 'we'

physics
A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m...

physics
A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the right answer is 108.46 m....

physics
A bag of sand dropped by a would-be assassin from the roof of a building just misses Tough Tony, a gangster 2-m tall. The missile traverses the height of Tough Tony in 0.22 s, landing with a thud at his feet. How high was the building? Ignore friction.

world history
explain the reason of the early roman republic were dissatisfied whith aptricians rule and how the patricians placated them

science,
why look for black precipitate in the butt instead of on the surface of an h2s test?

Science
Impact of California Water Wars on the Owens Valley?

math
60 divided by 4 is 15. 15 is your answer.

english
I need help with this question and would really apprecitae it the help What are three feutures of a lyric poem? Explain how "Song Concerning Dream of the thunderbirds" uses these features

biology
How does the interaction between a carrier protein and the substance it transports resemble the interaction between an enzyme and its substrate?

biology
How does the interaction between a carrier protein and the substance it transports resemble the interaction between an enzyme and its substrate?

organic chemistry
The solubility of a compound is 59g per 100mL in boiling methanol and 30g per 100mL in cold methanol, whereas its solubility in water is 7.2g per at 95 degrees Celsius and 0.22g per 100mL at 2 degrees Celsius. Which solvent would be better for recrystallization of the compound...

organic chemistry
if you were not told which solvent to use in the recrystallization experiment, how would you determine a suitable recrystallization solvent ?

english
why do teenager got an unwanted pregnancy an early marriage?

HELP ME pLEASE. DUE TOMORROW D:
if everyone of them had a different opinion then each one will have 3 argument which will add to 12 this is how i see it.

physics
is the answer 5K ?

physics
a person pushes a box across a horizontal surface at a constant speed of .5 meter per second. the box has a mass of 40 kg and the coefficient of sliding friction is .25. The power supplied to the boxx by the person is... please Explain!!

chemistry
predict how many sodium ions would combine with: (a) a chlorine ion. (b) a carbonate ion. (c) a phosphate ion.

14 line 10 syllable poem
i am not sure, do you know where to find other sonnets though?

WRITING
Writing is fun

WRITING
Well

pH
9. The pH of food entering the duodenum is changed from acidic to alkaline by A. gastric juices B. bile pigments C. intestinal enzymes D. pancreatic secretions I am unsure I think It is d YEP YOU ARE CORRECT!!!! Nope. Use the online dictionary to look up bile. http://www.m-w.c...

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