mira
Most popular questions and responses by mira
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?
asked on July 1, 2014 
History/Government
Please check my answers. What does the phrase jus sanguinis refer to? A. Citizen by birth on US soil B. Citizenship by serving in the armed forces of the US C. Citizenship by marrying a US citizen D. Citizenship because ones parents are US citizens
asked on September 23, 2016 
math
fill the sequence 8, 23, 44,74, 116 next two terms of sequence
asked on January 30, 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. 500g cast iron cup 500g gold cup
asked on February 1, 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?
asked on February 22, 2013 
Physics
A 4.500 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.455 and the coefficient of kinetic friction is μk = 0.155. At time t = 0, a force F = 12.4 N is applied horizontally to the block.
asked on October 29, 2014 
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
asked on 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
asked on November 28, 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.
asked on December 28, 2011 
math
perry mixed 4 2/3 ounces of red paint and 3 1/3 ounces of yellow paint to make the right shade of orange paint. He needs 40 ounces of orange paint to paint the rest of the desk. How many ounces of red and yellow paint should Perry use to make enough orange
asked on April 6, 2016 
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
asked on February 1, 2013 
Math / Statistics
{ In a recent basketball game, a player who makes 65% of his free throws made eight consecutive free throws. Assuming that freethrow shots are independent, determine whether this feat was unusual. } I'm just a little lost on how to determine if it's
asked on October 9, 2015 
Chemistry
What is the pH for the potassium propionate solution at the equivalence point?
asked on May 3, 2011 
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?
asked on August 1, 2012 
Math
Please check my answer.. Find a point E on segment CD such that the ratio of segment CE is 5/8 C is placed on (9) and point D is placed on 7. A. 8 B.1~~~ C. 1 D. 3
asked on September 26, 2016 
English
Please check my answers! I'm like 92.7% sure there correct but I want to be sure. My answer has the ~~~. Which of the following is the indirect object in the sentence? Lizzie gave Charles a hige birthday gift. A.Lizzie B. Charles~~~ C. Huge D. Gift Which
asked on September 21, 2016 
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.
asked on February 1, 2013 
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
asked on March 15, 2007 
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.
asked on February 22, 2013 
physics
A 62.0 skier is moving at 6.10 on a frictionless, horizontal snowcovered 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
asked on March 28, 2013 
teachers aide
Resources for educating young children with diverse abilities part3 Please check my answer?This is my last exam. 1c 2b 3c 4c 5a 6d 7b(not sure) 8d 9b 10c 11b 12a 13d 14c 15d 16a 17c 18d 19c 20a
asked on December 30, 2013 
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 neutralize exactly 25.00
asked on December 4, 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.
asked on December 2, 2012 
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
asked on March 17, 2007 
Math
A gardener grows roses, tulips, and sunflowers in an 18acre public garden. This year, she wants to plant twice as many acres of sunflowers as acres of tulips. She also wants wants to plant 6 more acres of roses than of sunflowers. How many acres of each
asked on November 5, 2014 
teachers aide
This is my answer of Resources for educating young children Part3.please some one fix if i wrong. 1c 11b 2b 12a 3c 13d 4c 14c 5a 15d 6d 16a 7b(not sure) 17c 8d 18d 9b 19c 10c 20a
asked on December 30, 2013 
finance
Suppose Delta Company issued bonds with a 15year 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
asked on June 23, 2013 
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
asked on November 28, 2012 
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
asked on October 30, 2008 
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√x5 , g(x) = x^3 + 1 So I started on this one and i got confused with the cubed
asked on October 2, 2012 
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.
asked on February 22, 2013 
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?
asked on February 15, 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
asked on December 2, 2012 
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
asked on August 16, 2011 
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?
asked on December 18, 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?
asked on November 25, 2012 
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?
asked on September 30, 2011 
Calculus 2
How would you find the following. A step by step process would greatly be appreciated. 1) Convert the polar equation to a rectangular equation. r^2 = 8sin2θ
asked on May 17, 2015 
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
asked on 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
asked on December 2, 2012 
Chemistry 105
What is the weight/ weight% of a solution made by dissolving 12.0g of NaC1 in 100.0 g of water?
asked on November 25, 2012 
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
asked on May 20, 2011 
calculus
How many critical points does the function: (x+2)^5 * (x3)^4 have? How would I solve this quickly? The answer says something about an effect of multiplicity of the zeros of the function?
asked on 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.
asked on January 9, 2011 
6th grade math
What is 2 x (4 to the power of 2)  12 + 5 ?
asked on September 16, 2008 
chemistry
suppose as student returned some unused lead nitrate to the container marked sodium nitrate. what could the student do to get all the lead ions out from the sodium nitrate?
asked on April 2, 2016 
Math of Investment
How long will it take for money to double itself at {0.55, m=2}
asked on January 6, 2016 
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
asked on September 4, 2012 
physical science
determine the amount of gravity of two bobies whose mass is 10 grams each and are 10 cm apart?
asked on June 14, 2012 
physical
the missile in problem 16 took 2 minutes to reach the height it attained. how much power was used?
asked on June 14, 2012 
biology
how will you find out about the animals that live in the pond?
asked on August 31, 2008

physics
90km/he
posted on June 2, 2019 
MATH
You are correct, the answer is 300cm^2
posted on April 17, 2017 
English  The Red Badge of Courage
Umm...guys warning if you use the answeres peter put ur gonna not only fail the test but get caught on cheating because he put TXX answers whoch means if more than 3 students get the exact same answers wrong and put the exact same answers they will me
posted on February 2, 2017 
Social Studies (Ms. Sue) Please Proofread
At first I thought this was a joke because a lot of the answers were b and c but they are all right!!!!
posted on October 31, 2016 
IQ question
31215
posted on December 3, 2015 
Organic Chemistry
I'll try to answer those questions. But I need someone to check for me. 1) anthracene
posted on September 29, 2015 
Calculus 2
Thank you so much. I was stuck on the right hand side with the 8sin2θ. Not sure what to do with the 8 and 2. This has cleared it up very well.
posted on May 17, 2015 
math
thank you. it is grade 7 special math school
posted on January 30, 2013 
Chemistry105
Can you please plug in the numbers this is so confusing.
posted on December 6, 2012 
Chemistry105
Hci
posted on December 4, 2012 
physics
Instead of subtracting the (25343) add it and you should get the correct answer. :)
posted on November 19, 2011