Lindy
Most popular questions and responses by Lindy
Chemistry
A 237 g piece of molybdenum, initially at 100.0°C, is dropped into 244 g of water at 10.0°C. When the system comes to thermal equilibrium, the temperature is 15.3°C. What is the specific heat capacity of molybdenum?
asked on April 22, 2011 
Trig
Two planes take off at the same time from an airport. The first plane is flying at 240 miles per hour on a bearing of S 45.0° E. The second plane is flying in the direction S 45.0°W at 290 miles per hour. What is the bearing of the second plane from the
asked on October 1, 2014 
US HIST
Explain, in a paragraph of your own words, what you consider to be the “#1 Cost of the American Civil War.”Choices: (Social, Economic, or Political)
asked on May 14, 2014 
chemistry
how wold you prepare 2.00L of 1.00M HCl solution using 6.00 M HCl? i already found the volume of 6.00M HCl needed to be .333L. i am confused about how to actually prepare the solution. do i used a volumetric flask or any other glassware?
asked on February 26, 2011 
chemistry
The freezing point of mercury is 38.8°C, is the only metal that is liquid at room temperature. What quantity of heat energy, in joules, must be released by mercury if 2.00 mL of mercury is cooled from 23.0°C to 38.8°C and then frozen to a solid? (The
asked on April 23, 2011 
math
For questions 1–4, find the slope of the following graphs. 1. (1 point) 2 –2 – 2. (1 point) 1 –1 – 3. (1 point) 3 – 4. (1 point) 0 1 –1 undefined For questions 5 and 6, find the
asked on May 2, 2014 
math
jeremy spends 1/4 of his pocket money each week on books.he saves 2/3 of what is left over.if he saves $5 each week,how much weekly pocket money does he receive
asked on April 13, 2013 
statistics
It is known that 60% of people do not respond to mailed questionnaires. In a sample of 20 questionnaires mailed, what is the probability that more than 12 people will respond?
asked on May 2, 2008 
College algebra
how do you find the population (in thousands) of people of a city is growing according to the function P(t)=1500(2)^0.144t, where t is the number of years since 2001. I need to find the population of the city in 2001 and in 2008.
asked on July 24, 2015 
Chemistry
The freezing point of mercury is 38.8°C, is the only metal that is liquid at room temperature. What quantity of heat energy, in joules, must be released by mercury if 2.00 mL of mercury is cooled from 23.0°C to 38.8°C and then frozen to a solid? (The
asked on April 22, 2011 
Technology
If the mine Winch drum diameter is 6 m, calculate how far the cage will drop for each single rotation of the drum
asked on September 7, 2019 
math
Anthony is twice as old as Julian.5years ago,he was three times as old .let x be julian`s present age find the present ages of anthony
asked on October 29, 2014 
math
Trevor invests $10000 for a year.he obtains 8% per year for a part of the money and 10%per an um for remainder.at end of the year he sill receive $950 in interest.how much does he invest at 10%
asked on October 27, 2014 
math
Sum of 8numbers is X,sum of a different set of nine numbers is 2x.average of smaller set of numbers is one more than average of the larger set of numbers.write an equation for X and solve it
asked on October 27, 2014 
math
a bottle is 1/4 full of cordial,if 500 ml of cordial is added to it, the bottle is 2/3 full.how many ml does the bottle hold when full
asked on April 13, 2013 
Chemistry
The freezing point of mercury is 38.8°C, is the only metal that is liquid at room temperature. What quantity of heat energy, in joules, must be released by mercury if 2.00 mL of mercury is cooled from 23.0°C to 38.8°C and then frozen to a solid? (The
asked on April 23, 2011 
Statistics
The head librarian claims that books have been checked out an average of seven times in the last year. You suspect she has exaggerated the checkout rate and that the mean number of checkouts per book per year is, in fact, less than seven. Using the
asked on May 2, 2008 
Public Admin
Provide two examples (social, political, cultural, environmental, or economic conditions) that may have influenced the content and development of the U.S. Constitution. In addition, explain how the factors you selected impact public administration in
asked on March 2, 2016 
science
what quantity of heat must be absorbed to convert 86.1 g of liquid to a vapor at its boiling point, 24.09 c? the heat of vaporization of ch3cl is 21.40
asked on April 23, 2011 
Algebra  word problem
A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height, t seconds after it is tossed is (16t^2 + 96t) feet. The green ball is given an initial velocity of 80 feet
asked on November 30, 2009 
AlgebraVariation
It is a variation problem. I know what the answer is and how to get to the answer I just don't know how I got it. From measurements on many rivers, geographers find that the length of a river that drains a particular "basin" of land is approximately
asked on April 23, 2011 
Chemistry
In a copper cycle lab, where could have the lost copper might have went? Let's say I did a copper cycle lab and my final weight of the copper is less than what i started with. Where did it go?
asked on April 23, 2011 
chemistry
calculate the concentration of ions present after the reaction between 13.50mL of 2.00M BaCl2 and 2.50mL of 6.00M H2SO4 i just wanted to check my answers [Ba^2+]=1.69M [SO4^2]=o.938M [H^+]=0 [Cl^]=1.50M if they are wrong please explain
asked on February 26, 2011 
algebra
2cd=2 d=4c+20
asked on January 12, 2009 
statistics
population mean=42.6 standard deviation=12 n=16 M=34.4. Is this mean a reasonable outcome for a sample of n=16, or is this sample mean very different from what would usually be expected? I obtained a z score of 2.73. Thus, that would make the sample mean
asked on May 29, 2008 
Chem  solubility
What is the molar solubility of Fe(OH)3 in water?
asked on March 4, 2015 
language arts
2. Read the following paragraph "That thrilled me, and scared me. The great world seemed to swing wide like the gates of the Fair, and I didn’t even have a plan. I hadn’t even put up my hair yet. It seemed to me it was time for that, time to jerk that
asked on May 20, 2014 
chemistry
help balance HNO2+HNO3
asked on December 3, 2013 
math
a box contains more than 25 but fewer than 40 balls.When the balls are counted by 3 there is 1 left over.When the balls are counted by 5 there are 2 left over.How many balls are in the box?
asked on December 2, 2012 
Math
How will you add,subtract,multiply, and divide 14,2,7,3,and 9 in that form to get to the answer 10.
asked on September 18, 2016 
math
Frances walks half the distance at 5km/h and ru the other half at 10km/hit the total time for her journey is 3 hours,what is the distance
asked on October 29, 2014 
math
what is the total surface (in square units) of an opentopped box with dimensions L*W*H =9*7*6
asked on April 13, 2013 
math
how many 2 digit numbers can be written so that the second digit is greater than the digit before it ?
asked on December 5, 2012 
Life orientation
Describe the life styele cancer and explain factors that contribute to the cancer
asked on April 29, 2012 
Chemistry lab
I did a copper cycle lab and my final weight of the copper is less than what i started with. Where did the lost copper go?
asked on April 24, 2011 
world history
Can you compare Syria's education level of population with the France's back in the days before the french revolution?
asked on April 23, 2011 
calculus
the side of squyare,s, is increasing at a rate of k unites per second. find the rate at which the area of the square is increasing
asked on November 29, 2010 
math
three sevenths divided by six thirteenths = ?
asked on December 24, 2012 
math
we decided on a new logo for our brand of shirts.It was to be 3 stripes. How many different logos we make, if we used 3 colors
asked on December 9, 2012 
math
pqrst is a regular hexagon. v is the intersection of pt and su.how big is angle tvs?
asked on April 13, 2013 
Calculus
The height (in feet) at time t (in seconds) of a small weight oscillating at the end of a spring is given below. h(t) = 0.2 cos(2t) (a) Calculate the weight's average velocity over the time intervals [1, 2] and [5, 7].
asked on January 26, 2013 
math
find the missing number; 8 1 4 5 7 # ;81 4 25 36 ?
asked on December 2, 2012 
World history
What was the economy of Syria like before the current revolution? Do you know any good website for it? Please help me!
asked on April 24, 2011 
math
24874divided by 17 ,which digits should one change in the first number to increase the answer by 100
asked on April 13, 2013 
math
24874divided by 17 ,which digits should one change in the first number to increase the answer by 100
asked on April 13, 2013

Physics Energy
I think you did it right. My teacher got the same answer as u. Why would the answer be 200000?
posted on April 27, 2019 
English
Answer
posted on April 19, 2016 
Public Admin
1). Provide two examples (social, political, cultural, environmental, or economic conditions) that may have influenced the content and development of the U.S. Constitution.
posted on March 6, 2016 
math
Can u please show me how to work it out thanks
posted on October 29, 2014 
Trig
Mr.Steve can you help the Algebra questions that were asked. My class happen to be doing the same thing.
posted on October 1, 2014 
Trig
Can someone help me?
posted on October 1, 2014 
Math
Find three consecutive number of which the sum is 85
posted on July 8, 2014 
math
sorry,i am still not undrstand
posted on December 13, 2012 
math
sorry, I 'm still not understand
posted on December 9, 2012 
math
could u please explain how u work it out,thanks
posted on December 9, 2012 
world history
sorry it was logged in as my brother's name. Thanks again!
posted on April 23, 2011 
chemistry
Wait but I tried out the question but I kept getting the wrong answer... So if [mass Hg x specific heat liquid Hg x (TfinalTinitial) ] + (mass Hg x heat fusion) (27.2 * 0.1410 * 61.8) + (27.2 * 11.4) and I got the answer as 598 but the answer is wrong.
posted on April 23, 2011 
Chemistry
My mistake :( Sorry.
posted on April 23, 2011 
chemistry
Ahh sorry it was a mistake. Sorry :(
posted on April 23, 2011 
world history
Do you know how much it was in France approximately? Do you think there is a source that can help me? :(
posted on April 23, 2011 
Chemistry
Oh never mind I got it. Thank you for your help!
posted on April 23, 2011 
Chemistry
But how would you get the mass if the question says 2.00ml and density is 13.6g/cm^3? How do you convert ml to cm^3?
posted on April 23, 2011 
chemistry
the grams of Ba(OH)2 that reacted was 11.99g. but isn't this still of the impure Ba(OH)2 sample? how do i find out the mass of pure Ba(OH)2? thanks for you're help so far
posted on February 26, 2011 
statistics
I meant REASONABLE, sorry. Thanks!
posted on May 30, 2008 
Statistics
*librarians intial claim
posted on May 2, 2008 
Statistics
Thanks. Would that mean the initial claim was too high?
posted on May 2, 2008