Thursday
December 8, 2016

# Posts by Felix

Total # Posts: 82

computer
write a pseudocode to list any 25 integer and display both negative and positive
November 1, 2016

Math
A boat starts out at 20km/h in direction 30 degrees. However, the boat is blown off course by a 12km/h wind blowing from 80 degrees. What direction does the boat now travel in and how far does it travel in one hour?
October 1, 2016

chemistry
The reaction CHCL3(g)+CL2(g)_CCL4(g)+HCL(g) has the following rate law:Rate =k [CHCL3][CL2].If the concentration of CHCL3 is increased by a factor of five while the concentration of CL2 Is kept the same use a mathematical equation to show the factor by which the rate will ...
August 20, 2016

Physics
A tugboat pulls a ship with a constant horizontal force of 6000N and causes the ship to move through a harbor. The water exerts a constant drag force on the ship of 500N. How much work is done on the ship if it moves a distance of 4.0 km? Force is causing parallel displacement...
December 16, 2015

chemistry
The equations for the heats of the formation of copper (I) oxide,Cu2O and copper(II) oxide,CuO are: 2Cu(s) +1/2 O2(g) CuO(s); ∆Hof =-166.7kj/mol Cu(s) +1/2 O(g) CuO(s); ∆Hof= -155.2kj/mol The first and second ionisation energies of copper are 750 and 2000kj/mol ...
October 4, 2015

Physics
how much heat is needed to vaporize a 400.0 g of liquid water at 310.0 K?
September 23, 2015

Irrational.
September 9, 2015

math
what are the three smallest 7 digit whole numbers that can be made using only the digits 4,3,0,9,2,8,and 5? Each digit must be used exactly one time in each number.
August 25, 2015

math
how many flowers can be planted in a flower bed 13 ft long at 13 inches apart?
August 6, 2015

Physics
A plane has a max speed of 200 km/h. What is the maximum speed it can travel due west if there's a northwest wind at 50 km/h?
January 22, 2015

Geometry
The second-largest state in the US is Texas, covering 268,580 square miles (including water). What is the approximate radius of a sphere with the same surface area as the area of Texas?
October 24, 2014

Math
\$99182
October 23, 2014

Chemistry
naturall occuring copper consist of two stable isotops 63/29 cu and 65/29.
October 5, 2014

network analysis
Point A and B are 0.1m apart. A Point charge of +3.0*10^-9 c is placed at A and a point charge at -1.0*10^-9c B. X is the point on the straight line between A and B where the electric potential is zero. calculate the distance AX
September 21, 2014

d,m,v
whats the volume of benzene.?
September 13, 2014

geometry maths
A piece of wire 30 cm long is cut into two pieces. One of these is bent into a circle, and the other is bent into a square enclosing the circle, as shown in the diagram. What is the diameter of the circle? (Remember that the circumference of a circle = 2 pi r.
April 3, 2014

Math
Suppose you are comparing two numbers that are greater than 1,000. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain.
September 5, 2013

Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22-x)= 2.9 X 10^9
March 18, 2013

Chemistry (reposting)
In which of the following solution would CaC2O4 have the highest molar solubility? Please help. A) 0.01 M NaCl B) 0.01 M H2C2O4 C) 0.01 M Na2C2O4 D) 0.01 M NaHC2O4 E) 0.01 M HCl I think it is E because it is a strong acid and will completely dissociate
March 18, 2013

Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22-x)= 2.9 X 10^9 I'm lost and cant figure out ...
March 17, 2013

Chemistry
In which of the following solution would CaC2O4 have the highest molar solubility? Please help. A) 0.01 M NaCl B) 0.01 M H2C2O4 C) 0.01 M Na2C2O4 D) 0.01 M NaHC2O4 E) 0.01 M HCl I think it is E because it is a strong acid and will completely dissociate..
March 17, 2013

physics
A cue ball rolling across a pool table at 5.7 m/s collides with a stationary eight ball of equal mass. The cue ball stops after the collision. What is the velocity of the eight ball after the collision?
March 10, 2013

english
possessive pronouns of martha katz's?
February 13, 2013

science
A solution contains 2 mEq/mL of KCL (Molecular weight 74.5). If a 20 mL ampule of this solution is diluted to 1 liter what is the percent strenght of the resulting solution?
January 14, 2013

Physics
(5x^-3)^2
September 5, 2012

math
8(x+1/2)=2x+4
January 11, 2012

math
30=3c+2(3c-3
December 13, 2011

math
3(d+2)-d=16
December 13, 2011

English
(This homework question has been removed because it was copied directly from a test.)
November 28, 2011

Geometry
Explain whether the following statement is a valid definition: “A 30° angle is an acute angle.” Use the converse, biconditional, and at least one Euler diagram to support your answer.
November 28, 2011

math
(from current question)5x+negative13x+6x+4x simplify
November 16, 2011

math
(from current question)14x+20y+negative17y+negative17x
November 16, 2011

math
5x+negative13x+6x+4x
November 16, 2011

math
14x+20y+negative17y+negative17x
November 16, 2011

math
what is the percent of 438 to 789
October 20, 2011

math
how you figure percents like percent of438 to 789
October 20, 2011

science
How many years after voyage 2's launch was it before scientists could view its photographs of Uranus?
October 14, 2011

math
the arcade has three pinball machines and five video games.If a person wants to play one pinball machine and one video game,how many different combinations of games could that person play?
October 4, 2011

math
fraction for15%
October 3, 2011

math
i need the fraction for3/8
October 3, 2011

math
a percent for 0.9 decimal
October 3, 2011

math
October 3, 2011

math
a fraction for 0.9 decimal
October 3, 2011

math
a percent for 3/8
October 3, 2011

math
convert 15% into a fraction
October 3, 2011

math
the decimal for 15%
October 3, 2011

math
find a fraction of 20%
October 3, 2011

science
why do you think that people choose to live in places where earthquakes are common
September 27, 2011

math
Mr.Garica's class is harvesting the school garden.The rectangular garden is twenty-five feet by fifteen feet.What is the area of the garden?
September 26, 2011

math
What the density of 16/2
September 21, 2011

math
how many feet are in 261.32 yards
September 20, 2011

math
what is 1/3of 98
September 20, 2011

math
the melt in your mouth chocolate factory is a rectangular building.The distence across the front of the store is 98 yards.The distance from the front to the back one-third of this distance.If the owners paint a sign all the way around the outside of the factory,how many feet ...
September 20, 2011

math
square roots to the nearest tenth of 42
September 20, 2011

math
find the square root to the nearest tenth of 13
September 20, 2011

math
square root of 64 and the square -64
September 20, 2011

math
the two square roots of 9 are 3 and what
September 20, 2011

math
the melt in your mouth chocolate factory sells three times as many mints as it sells almond bars.it sells half as many almond bars as it sells caramels.if it sells 3,750 cases of mints each month,how many caramels does it sell in one month
September 20, 2011

math
find the prime factorization of 175
September 20, 2011

math
ms.sue the answer you gave me is not to helpful without a diagram of composite and odd numbers 20-35
September 20, 2011

math
i need to complete a venn diagram using the numbers 20-35 please help me drawing a venn diagram.
September 20, 2011

math
what is the scientific notation for 1,890,000 and 7,426,000
September 20, 2011

math
i need to cmplete a venn digram of composite and odd using the numbers 20-35.
September 20, 2011

math
what is the scientfic notation of35,000and982,000,000
September 15, 2011

math
write in scientific notation 35,000 and 982,000,000
September 15, 2011

math
what is the fraction form of 5.1
September 14, 2011

math
which of the following numbers are integers?8,1-1/2,0,-1,3.1
September 14, 2011

math
Polk Elementary School has three classes for each grade level,kindergarten through fifth grade.If there is an average of 27 students per classroom,about how many students attend Polk Elementary School?
September 14, 2011

algebra
25 divided 0.76 in long formed
September 11, 2011

chemistry
If 50.0 g of sodium bicarbonate is reacted and 11.0 g of carbon dioxide is produced, what is the percent yield of carbon dioxide? 2NaHCO3 --> Na2CO3 + CO2 + H2O
April 6, 2011

5 of 90 lotto equation formula
p/s i need two sure for saturday
March 30, 2011

English
What has a lot of power and start with with a "s" and ends with a "l".
March 2, 2011

calculus
If g is a differentiable function such that g(x) is less than 0 for all real numbers x and if f'(x)=(x2-4)g(x), which of the following is true? f has a relative maximum at x=-2 and a relative minimum at x=2, f has a relative minimum at x=-2 and has a relative maximum at x=...
January 2, 2011

math
on monday 86 science fiction books were sold at a book sale this is 8 more than twice the amount sold on thursday how many science fiction books were sold on thursday
November 29, 2010

Math
there were 10 quizzes. the range was 38. the mean was 90. there was one outlier. few students got 100. Find the sum of the 10 quiz.
April 22, 2010

economics
A professor of economics gives multiple choice exams each semester. He curves the exams by giving the maximum possible points to the high score on the exam. For example, if a 50 question exam is worth 100 points and the top score in the class is 40, then each question is worth...
November 24, 2009

Chemistry
C5H12 + 8O2 > 5CO2 + 6H2O
November 6, 2009

what is the volume of 12 in 10 in 5 in
March 2, 2009

English IV Honors