Sunday
June 26, 2016

Posts by logan

Total # Posts: 326

Physics
What amount of energy is needed to change 1 kg of O degrees Celsius ice to 10 degrees Celsius water?
March 14, 2016

Algebraic inequalities
There are three kinds of fruit in a basket:apples, oranges, and pears. The number of apples is 1 less than the number of oranges. The number of pears is 2 times the number of apples. There are 17 fruits in the basket. How many of each kind are there?
December 16, 2015

Math
A landscaper installs 12 sections of trellis. Each section is 3/4 yards long. How many yards of trellis are installed altogether?
December 3, 2015

Stats
Fill in the table below regarding populations and samples. The first column represents the question the statistician is trying to answer. Fill in the blank(s) for each row. 1.Is my well water safe? 2.Are as many girls born as boys in the world? 3.Which works better, Advil or ...
November 19, 2015

chemistry
Determine the pH of a 1 M aniline solution (Kb = 4.2 10-10). I am unsure how to start, any help?
November 13, 2015

math
A company logo has 4 concentric circles suppose you graph the points (diameter,circumference ) and connect them with a line. In terms of (pie), what is the slope of the resulting line.
November 12, 2015

Chemistry
There is a question on my assignment that's asks how many moles of atoms are in x mol of CO2 (and a few others). Let X represent 5x10^-4. How do I do this? Teacher didn't really teach us this. I know in one mol of CO2 there is 2 moles of oxygen atoms, so how many in ...
October 13, 2015

LA Story Teller
1 is C 2 is D 3 is C 4 is C 5 is B I just took the test
September 21, 2015

Math - Algebra
On test day, a teacher sharpens 19 pencils to lend out to his students. If n represents the number of pencils that the teacher lends out, which expression represents the number of pencils he has left? A) 19 - n B) 19 + n C) n-19 D) 19n *Please help!*
September 16, 2015

Math - Algebra
Evaluate t - u/v when t = -1, u = -3, and v = 1/2 I am VERY VERY unsure what the answer is. PLEASE HELP!!! I am stuck on this!!!
September 16, 2015

Hanahan
Use addition or substitution to find the value of y for this set of equations. 4x + 13y = 40 4x + 3y = -40
May 30, 2015

math
Does anyone know all the answers
May 7, 2015

Math
AMY IS RIGHT
April 24, 2015

SS
Lol I think its B
April 21, 2015

SS
Yes you guys really need to stop cheating
April 20, 2015

Chemistry
C is the answer
March 19, 2015

english cr
compare and contrast the two differnt versions of the story of the great chicago fire. how does the format of each passage allow the author to add details and information to support his/her purose?
March 9, 2015

Statistics
64
February 24, 2015

Physics
25 degrees
January 29, 2015

English check please
1. In the poems in this collection, who faces life with the most hopefulness and self-confidence? the speaker in “Life Doesn’t Frighten Me”********THIS ONE the speaker in “A Dream Within a Dream” the Oysters in “The Walrus and the Carpenter”...
January 26, 2015

ART Check
You were right on both! Thanks
January 22, 2015

ART Check
Brooch of Henry Clay This brooch contains a miniature picture of american statesmen henry clay. likely owned by clay or his ancestors this brooch is valued for what reason a)scholastic value b)provenance c)cultural heritage d)market value A museum is building a collection of ...
January 22, 2015

English Check please
C and d were correct thank you
January 22, 2015

English Check please
So C for 1? and thank you
January 22, 2015

English Check please
in a dream within a dream which phrase is a context clue to the meaning of grasp? While I weep--while I weep!/O God! Can I not grasp/Them with a tighter clasp? a) While I weep b)O God! Can I not c) with a tighter clasp d)can I not grasp them My answer is B Another one from A ...
January 22, 2015

algebra
How do I graph a direct variation when x=10, 20, 30, 40, and y = 4.5, 9.00, 13.50,18.00 Put x on graph going up by 10 and put y on graph at the bottom going across I am unsure of rest
January 21, 2015

Math
In a jar the number of blue marbles = twice the number of red marbles! there are 24 more blue marbles than red. How many red and blue marbles are in the jar?
January 14, 2015

math
How do I write an equivalent equation that does not contain fractions for 1/2 x -5 = 1/3
December 6, 2014

Chemistry
I'm not sure how to calculate the ΔH°rxn for 3 Al + 3 NH4ClO4 -> Al2O3 + AlCl3 + 3 NO + 6 H2O. I'm honestly not sure where to start with this problem.
November 28, 2014

5th grade math
how many flowers do I have if...1/4 are pink...2/5 of remaining flowers are red...18 are yellow
November 18, 2014

Chinese
My favorite: 我最喜欢 Wǒ zuì xǐhuān Egg: 蛋 Dàn Egg (specifically chicken): 鸡蛋 Jīdàn
October 24, 2014

algebra 2
Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole?
October 21, 2014

Science
If 2 cities on a globe is equal to 7cm, what is the actual distance between the 2 cities?
October 15, 2014

Chemistry
a 191 g piece of copper is heated to 100 C in a boiling water bath and then dropped into a beaker containing 755 g of water (density =1.00 g/cm3) at 4.0 C. What is the final temperature of the copper and water after thermal equilibrium is reached? (Scu=0.385 J/g•K)
October 15, 2014

Chemistry 30
Calculate the delta H for the reaction : 2H3BO3(aq) reacts with B2O3(solid) + 3H2O
October 13, 2014

math
Represent 30 degree increase in temperature as an integer. Would that be +30?
September 29, 2014

math
Is the amount of tax collected proportional to the cost of an item after tax has been added?explain
September 2, 2014

Math
I am a number between 20 and 30. When you divide me into 6 equal groups,there is an even number in each group and 2 are left over.what number am I?
July 9, 2014

statistics
suppose you roll two number cubes and pick a letter of the alphabet at random. find the probability you will roll two odd numbers and pick one of the letters k, l, or m.
June 4, 2014

art history
Which of Michelangelo's sculptures is a metaphor for courage, determination, and strength?
May 20, 2014

physics
A 0.250-kg aluminum bowl holding 0.800 kg of soup at 27.0°C is placed in a freezer. What is the final temperature if 430 kJ of energy is transferred from the bowl and soup? Assume the soup has the same thermal properties as that of water, the specific heat of the liquid ...
April 21, 2014

physics
=(1/2 m v^2)(.69)/(m C)
April 21, 2014

physics
A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.8 kg, and its initial speed is 3.8 m/s. How much does the block's temperature increase, if it absorbs 69% of its initial kinetic energy as internal energy? The ...
April 21, 2014

pre-algrebra
melind wants to paint the exterior lateral surface of her house. It is nine feet high and has a perimeter of 140 feet. each gallon of paint covers 300 square feet how many one gallon cans of paint does she need to buy to paint her house
March 7, 2014

Math
Do u mean 9/39
March 5, 2014

Math
Assume you are working on a house the length of the house is 50 feet, the width is 30 feet, and from the ground to the gable is 10 feet. The height of the triangle prism on top is 6.5 feet. If you are going to shingle the roof of this house, how many square feet should you ...
February 28, 2014

S.S Check my answers
THANKS GUYS GOT 100% YAYAYAYAYAYYAYAY
February 14, 2014

Correction
Not understanding how to answer this You pore over the present evaluation: two intoxicated college females, one DUI and the other trying to run from police officers, both with no prior arrest, and both nursing majors at the local college. As judge, you must decide whether to ...
January 31, 2014

Math (7th grade)
7
December 17, 2013

Math
Thanks sweetie it's easy
November 20, 2013

physics
Two stones are thrown vertically up at the same time. The first stone is thrown with an initial velocity of 11.5 m/s from a 12th floor balcony of a building and hits hits the ground after 4.6 seconds. With what initial velocity should the second stone be thrown from a 4th ...
September 10, 2013

Chemistry
A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
May 7, 2013

Chemistry
A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
May 7, 2013

language and art
How to write a character sketch?
May 1, 2013

social studies
Welcome to Jiskha the home for cheaters XD
March 11, 2013

Social Studies
All I know is that it is Harrison. Can't remember why but it is.
February 25, 2013

physics
Just use (k*|q1|*|q2|)/r^2 It should come out as 1,638,427.5N
February 19, 2013

math
a pizza has a diameter of 18. what is the best estimate of the area of the pizza?
February 8, 2013

Physics
can anyone explain how they got their answer?
January 23, 2013

Math
1.5%h=12. What is h?
January 9, 2013

physics
A ferry boat is 6.2m wide and 7.1 m long. When a truck pulls onto it, the boat sinks 6.02 cm in the water. What us the weight of the truck? The acceleration of gravity is 9.81 m/s2. Answer in units of N
December 19, 2012

PLEASE HELP
PLEASE
December 7, 2012

College Algebra and Finance
Please help! Just need the answer... A lender gives you a choice between the following two 30-year mortgages of $200,000: Mortgage A: 6.65% interest compounded monthly, one point, monthly payment of $1283.93 Mortgage B: 6.8% interest compounded monthly, no points, monthly ...
December 7, 2012

math
A lender gives you a choice between the following two 30-year mortgages of $200,000: Mortgage A: 6.65% interest compounded monthly, one point, monthly payment of $1283.93 Mortgage B: 6.8% interest compounded monthly, no points, monthly payment of $1303.85 Assuming that you can...
December 7, 2012

math VERY URGENT
First year 1+ 2=3 Second year 3+2+2+2=9 Third year 9+2+2+2+2+2+2+2+2+2=27 Fourth year 27+[27•2]=81
December 4, 2012

Math
The difference between the two numbers is 14. The LCM of the two numbers is 16. Find the two numbers
November 13, 2012

physics
your completely wrong
October 14, 2012

physics
A car traveling in a straight line has a velocity of +3.3 m/s. After an acceleration of 0.71 m/s2, the car's velocity is +8.8 m/s. In what time interval did the acceleration occur?
October 14, 2012

algebra
Find the least common multiple of the monomials. 5a squared, and 16a cubed. Also 17b squared and 3b cubed. Could you show me how to do these. Thank you, Sandy
October 10, 2012

math
what is 2056 less than 22010
September 26, 2012

math
Use breaking apart method to solve 5 times 5, I'm not sure what this means
September 17, 2012

algebra
A rectangle has a length that is 5 feet more than its width. The area of this rectangle is 84 square feet. What is the width and length of this rectangle?
September 13, 2012

algebra
I dont understand this question How would you explain to your friend why the quotient of x*6 and x^2 is x^6 Remember your friend is questioning the rule, so you just cannot say it is the rule.
September 7, 2012

math
how do i factor the following equation? 3x^2=48
August 29, 2012

ALGEBRA
List the conditions when the sum of a positive number and several negative numbers will be positive. Include an example that represents your answer.
August 10, 2012

prealgebra/ check answer please
John who is an amateur golfer spends 3 hours every day practicing golf. What percentage of his waking hours does John spend practicing golf if he sleeps 9 hours a day? 24-9=15 3/15= 0.2 0.2 x 100 = 20% spent practicing
June 24, 2012

prealgebra/ check answer please
Thanks for checking :)
June 24, 2012

prealgebra/ check answer please
What single discount is equivalent to two successive discounts of 15% and 7%? x= 100 [1-(.85)(.93)] = 100 (1-.79) =100 (.21) =21%
June 24, 2012

math/prealgebra
5 is 20% of what number? I am so lost
June 21, 2012

math
11 - 8 ÷ (1/3 + 1/5) I need to know how to to this please show me. Thank you
June 17, 2012

U.S. History
How would I persuade someone that the Vietnam war was the most devisive war in American History?
May 30, 2012

math/algebra
Express 55 minutes as a fraction of 11/3 hours. Please show work
May 29, 2012

algebra
Express 55 minutes as a fraction of 11/3 hours. please this is doen.
May 28, 2012

math
Subtract the sum of 81.6 and 4.07 from 129.4 Please show how its done.
May 28, 2012

statistics
the life of light bulbs is distributed normally. The variance of the life time is 225 and the mean lifetime of a bulb is 590 hours. Find the probability of a bulb lasting for at most 603 hours. Yeah, WTF??? Why me!??!
May 3, 2012

History
I need some information on China's modern genocides and crimes against humanity staying the 20th century.
April 27, 2012

Calculus grade 12
a) 2cos2x b) 2cosx*cosx - 2sinx*sinx = 2cos2x c) double angle identity
April 12, 2012

Chem Lab
Thank you, it should say 'used' not 'sued'.
April 11, 2012

Chem Lab
Can the NH3/NH4Cl system be sued to prepare a buffer of a pH 9.5? why or why not? Can it prepare a buffer of pH 5? There were two buffers, 0.2 M and 0.1M.
April 11, 2012

History
Tell meabout Forced Sterilization and its sue int he U.S. What was the total number of people in the U.S. sterilized and the reasons why. How was this later imitated by the Nazi people?
March 21, 2012

science
Identify one harmful activity that humans do that might change the percentage of water that is available as a resource? Predict the possible effects this activity could cause to the food chains in that area, the changes in the number and types of organisms, and on the ...
March 15, 2012

Social Studies
What continent is located south of Europe in Medieval Europe?
February 28, 2012

precal
given tanx= (1/2) and cscx<0, find cos2x
February 26, 2012

7th grade math
Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?
February 14, 2012

7th grade math
Toby is making a model of a battlefield. The actual area is 11 miles by 7.5 miles. He wants to put the model on a 3.25 ft by 3.25 ft square table with at least 3 inches on each side between the model and table edges. What is the largest scale he can use?
February 14, 2012

Geology
I need help comparing and contrasting rocks and minerals.
February 9, 2012

World History
How did Scientific discoveries change peoples attitudes towards natural events and religious faith?
January 13, 2012

Physics
Why did the chicken cross the road?
December 13, 2011

algebra
There are two similar triangles. The angles are: from top to bottom left: DE, from bottom left to right: EF, And from Top to bottom right corner: DF. DE: 10.32 cm.EF: 8.88 cm.FD 12.24 cm. The angles are: D,top,45 Degrees. E, bottom left corner, 79 Degrees. And F, Bottom right ...
December 12, 2011

grade 12 math
it is f(x)=x^3+8/x^2+x-6
December 5, 2011

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