Thursday
August 21, 2014

Posts by mira


Total # Posts: 47

physics
A car moves with a speed of 30km/hr for half an hr,25km/hr for 1he and 40km/hr for 2hrs. What is the average speed of car?
July 1, 2014

teachers aide
Resources for educating young children with diverse abilities part-3 Please check my answer?This is my last exam. 1--c 2--b 3--c 4--c 5--a 6--d 7--b(not sure) 8--d 9--b 10-c 11-b 12-a 13-d 14-c 15-d 16-a 17-c 18-d 19-c 20-a
December 30, 2013

teachers aide
This is my answer of Resources for educating young children Part-3.please some one fix if i wrong. 1--c 11--b 2--b 12--a 3--c 13--d 4--c 14--c 5--a 15--d 6--d 16--a 7--b(not sure) 17--c 8--d 18--d 9--b 19--c 10--c 20--a
December 30, 2013

Physics
Someone Help her!!! :)
June 26, 2013

finance
Suppose Delta Company issued bonds with a 15-year maturity, a Rs. 1,000 par value, a 12 percent coupon rate, and semiannual interest payments. If actual price of the bond in the market is Rs 900, compute yield to maturity, current yield and capital gain yield.
June 23, 2013

physics
A 62.0 skier is moving at 6.10 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.30 long. The coefficient of kinetic friction between this patch and her skis is 0.330. After crossing the rough patch and returning to friction-free snow, she ...
March 28, 2013

Chem
Calculate the mass percent composition of C,H, O and in aspirin. Express your answers using two significant figures. Enter your answers numerically separated by commas.
February 22, 2013

Chem
Calculate the mass percent composition of C,H, O and in aspirin. Express your answers using two significant figures. Enter your answers numerically separated by commas.
February 22, 2013

Chemistry
A helium balloon contains 0.54g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?
February 22, 2013

chem
If you pour equal amounts of scalding hot water into different metallic cups of equal temperature, which cup will heat up the most? Rank the cups from hottest to coldest. Rank from warmest to coolest final temperature. 500-g cast iron cup 500-g gold cup 750-g cast iron cup
February 1, 2013

chem
Rank the following species according to the decreasing energy needed to raise the temperature of 10.0g of the substance by 25.0 degrees celsius Rank from most to least energy needed. Rank these in order of the question. copper aluminum cast iron silver water
February 1, 2013

chem
Calculate the amount of heat required to heat a 3.3kg gold bar from 24 degrees celsius to 61 degrees celsius. Specific heat capacity of gold is 0.128 J/g degrees Celsius! Express your answer using two significant figures.
February 1, 2013

math
thank you. it is grade 7 special math school
January 30, 2013

math
fill the sequence 8, 23, 44,74, 116 next two terms of sequence
January 30, 2013

Chemistry105
A 10.00 mL volume of sulfuric acid required 23.65 mL of NaOH solution for complete neutralization. What is the molarity of the acid solution?
December 18, 2012

Chemistry105
Can you please plug in the numbers this is so confusing.
December 4, 2012

Chemistry105
1. (a) What is the molarity of a solution prepared by dissolving 4.315 g of NaOH in water to exactly 100 mL in a graduated flask? (Na = 23.0; O = 16.0' H = 1.0 amu).    (b) What volume of the above solution is required to ...
December 4, 2012

Chemistry105
Hci
December 2, 2012

Chemistry105
When 50.0 Ml of 1.00 m chi was mixed with 50.0 ml of 1.00 m NaOH in a calorimeter the temperature rose from 25.0 c to 32.0 c calculate the heat change for the reaction assuming that the total volume of the solution is 100.0 ml and the specific heat is 1.00 cal/ (g.c). Is the ...
December 2, 2012

Chemistry105
When 50.0 Ml of 1.00 m chi was mixed with 50.0 ml of 1.00 m NaOH in a calorimeter the temperature rose from 25.0 c to 32.0 c calculate the heat change for the reaction assuming that the total volume of the solution is 100.0 ml and the specific heat is 1.00 cal/ (g.c). Is the ...
December 2, 2012

statistik
Below are random sample of 4 observations. 25,75,32,56 Based on the given information, determine whether or not the population from which this sample was taken is significantly different from 48 at 95 percent confidence level. (Assume the population is normally distributed).
December 2, 2012

statistik
can you show me the caculation :) Last year, 50% of MNM, Inc. employees were female. It is believed that there has been a reduction in the percentage of females in the company. This year, in a random sample of 400 employees, 180 were female. a.Give the null and the alternative...
December 2, 2012

statistik
can you show me the calculation ;) The life expectancy of computer terminals is normally distributed with a mean of 4 years and standard deviation for 10 months. a. What is the probability that a randomly selected terminal will last more than 5 years? b. What percentage of ...
December 2, 2012

statistik
the average starting salary of this yaer's graduates of a large university (LU)is $25000 with a standard deviation of $5000.futhermore,it is known that the starting salaries are normally distributed. a)what is the probability that a randomly selected LU graduate will have ...
November 28, 2012

statistik
twenty percent of the employees of a large company are female.use the normal approximation of the binomial probabilities to answer the following question. what is the probability that in a random sample of 80 employeses a)exactly 16 will be female? b)14 or more will be female...
November 28, 2012

Chemistry105
What is the molarity of a solution made by diluting exactely 10.00 mL of a 0.1235 M solution of KNO3 to exactely 250 mL in a graduated flask?
November 25, 2012

Chemistry 105
What is the weight/ weight% of a solution made by dissolving 12.0g of NaC1 in 100.0 g of water?
November 25, 2012

Math ( composite functions )
I need some help with composite functions where i have to find the f(g(x)) and g(f(x)) on most of them I just couldn't figure out how to multiply.... 1) f(x) = ³√x-5 , g(x) = x^3 + 1 So I started on this one and i got confused with the cubed f(g(x))=³&#...
October 2, 2012

Humanities, social studies
Can someone please give me links or answer these questions: What Culture did the Burgundians have? if so, what did they do (culturally) How did the Burgundians Are they a democracy, monarchy, etc.? How did they make money (politically and economically) I can't find a brief...
September 4, 2012

physics
The half life of a radioactive sample is 6.93 days.after how many days will only one -tenth of the sample be left behind?
August 1, 2012

physical science
determine the amount of gravity of two bobies whose mass is 10 grams each and are 10 cm apart?
June 14, 2012

physical
the missile in problem 16 took 2 minutes to reach the height it attained. how much power was used?
June 14, 2012

chemistry
a gas has a volume of 20 liters measured at 27 degree celcius and 4 atmospheres .What will be its volume at standard temperature pressure?
February 15, 2012

Please help me!!! BIOLOGY
1. Explain how natural selection and sexual selection can work together to cause the evolution of large antlers on male moose. 2. Suggest two ways a synthetic biologist can change the course of evolution.
December 28, 2011

College Physics
A ball is thrown upward at a speed v0 at an angle of 53° above the horizontal. It reaches a maximum height of 8.2 m. How high would this ball go if it were thrown straight upward at speed v0?
September 30, 2011

science physics
a small aircraft experiences s lift force equal to 3.8 times of its weight. a)draw a diagram to show the forces acting on the aircraft when it is flying in a horizontal circle with its wing banked at an angle to the horizontal b)determine the maximum bank angle that the ...
August 16, 2011

movement and music
the best time of day for toddlers to participate in a movement session is a morning, b noon, c afternoon d evening
May 20, 2011

Chemistry
What is the pH for the potassium propionate solution at the equivalence point?
May 3, 2011

calculus
How many critical points does the function: (x+2)^5 * (x-3)^4 have? How would I solve this quickly? The answer says something about an effect of multiplicity of the zeros of the function?
April 22, 2011

federal tax
Compute Marie's taxable income for 2008, assuming she is single and claims two dependent children. Her adjusted gross income is $70,000 and she has itemized deductions of $9,000.
January 9, 2011

math
i don't know
December 7, 2010

physics
Instead of subtracting the (25-343) add it and you should get the correct answer. :)
April 21, 2010

computer science /use java language
write the program that inputs a string representing a binary number(0s and 1s). First, your program should veerify that it is indeed a binary number, that is, the number contains only 0s and 1s . if that is not the case, your program should print a message that number is not a...
October 30, 2008

6th grade math
What is 2 x (4 to the power of 2) - 12 + 5 ?
September 16, 2008

biology
how will you find out about the animals that live in the pond?
August 31, 2008

chem
How do these things shift the direction of a chemical reaction?: -adding/removing reactants -adding/removing products -adding/removing energy This is how I think I understand it: -adding more reactants pushes it to the right -removing reactants pushes it to the left -adding ...
March 17, 2007

chemistry
How do these things shift the direction of a chemical reaction?: -adding/removing reactants -adding/removing products -adding/removing energy Thanks! It depends upon the equation and whether the reaction is exothermic or endothermic. Post the entire problem and tell us what ...
March 15, 2007

Pages: 1

Search
Members