Monday
September 26, 2016

Posts by Jonathan

Total # Posts: 370

Chemistry
A 5.0g KBr sample, at 25 degrees celsius, dissolved in 25 ml of water, also at 25 degrees celsius. the final equilibrium temperature of the resulting solution is 18.1 degrees celsius, What is the enthalpy change in J/g and KJ/mole of KBr.
November 14, 2012

History
Why might a president's legislative proposal receive strong public support from around the nation yet still encounter opposition in Congress?
November 14, 2012

University Physics
from my calculations the answer is 128.35seconds
November 1, 2012

Honors Physics
A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely?
October 16, 2012

Statistics
When a truckload of apples arrives at a packing plant, a random sample of 250 is selected and examined for bruises, and other defects. The whole truckload will be rejected if more than 5% of the sample is unsatisfactory. Although it is not known, in fact 8% of the apples on ...
October 8, 2012

Math
When a truckload of apples arrives at a packing plant, a random sample of 250 is selected and examined for bruises, and other defects. The whole truckload will be rejected if more than 5% of the sample is unsatisfactory. Although it is not known, in fact 8% of the apples on ...
October 8, 2012

US History
Why Is Alfred T Mahan Important To Us Today?
October 4, 2012

Us History
In need of help, Who Did Alfred T Mahan Look Up To As A Child?
October 4, 2012

Math
For the given cost function 16 sqrt x+x^2/3375 The marginal cost at the production level 1700 The minimal average cost
September 29, 2012

Math
In lowest gear on a 10-speed bike, each turn of the pedals makes the wheels turn 3.4 times. In the highest gear, each turn of the pedals makes the wheels turn 1.8 times. With each turn of the wheels, the bike travels 6.5 feet. How much farther does the bike travel with each ...
September 24, 2012

English-poetry
I am doing a poetry analysis of John Clare's "IAm!" I need help identifying the emotional/logical climax and the fulcrum of the piece. I have identified its metaphors, similes, imagery, censuara, allusions, repetition. Am I missing something? Here is the poem: I ...
September 24, 2012

Math
I need to make a bar graph using the data set of my last problem. Data Set: 5,7,7,7,11,12,12,13,14,15,16,18
September 19, 2012

Geometry
the area of a triangle is 27. its height is 3 times the base. find the height and the base of the triangle.
September 11, 2012

ap geometry
m is the midpoint of segment jk. jm=x/8 and jk=3x/4 subtracted by 6. find mk
September 3, 2012

Math
Compute 2^1000(mod 121) using Euler.
August 2, 2012

Math
Noting that 666=2x3^2x37, find phi(666) using Euler Theorem.
August 2, 2012

Math
Find the last two digits (units and tens digit) in 1829^1829 and find the units digit in 23^7777.
August 1, 2012

geometry
Martha climbs 40 steps to reach the first floor of a building. If the vertical and horizontal distance of each step is 1.5 ft and 1 ft, find the distance between the start and end points of each step.
June 11, 2012

Algebra
Please help!!!! (square root of x) + 3 = square root of (x+12)
May 20, 2012

Physics
either throw the jetpack where he doesn't want to go, so away from the space station, OR JUST CALL ANOTHER ASTRONAUT OVER THE RADIO!!! If the jetpack runs out of fuel, that doesn't mean that the battery of his radio and other systems is dead!
May 8, 2012

Algebra
the length of a rectangle is 1 inch greater than its width if its dimensions are doubled its area increases by 36 square inches give an equation to find its dimensions
May 8, 2012

history
thanks! Just as I thought just wanted to make sure
May 1, 2012

history
How do I know why someone wrote a journal(history) or why we still read it today?
May 1, 2012

trig
a 7 foot tall man is standing 65 feet away from a tower. if the angle of elevation is 35 degrees. what is the height of the tower to nearest tenth of a foot?
April 18, 2012

finance
you would calculate as follows: Only the income that results from this project is going to be counted. So, all "currently sells X at $" info is ignored! New project: 20580 x $11760 + 4900 x $44100 + -1274 x $83300 (we sell less of these) =351986600
April 16, 2012

Trigonometry
express in terms of sine and cosine. a) tan theta/ cot theta i know the answer is sin^2 theta / cos ^2 theta but how do you do it?
March 22, 2012

chemistry
DrBob222, aren't the volumes the wrong way round?
March 12, 2012

science-Help!
thanks a lot.
March 11, 2012

science-Help!
thank you-would this be correct Vinegar with Baking Soda mixed together creates an acid-base, making a gas. The gas pushes up into a balloon and causing the balloon to blow up.
March 11, 2012

science-Help!
not a specific question but I have to make a poster with my experiment-balloon, baking soda and vinegar each step of the scientific method. but stuck on research.
March 11, 2012

science-Help!
so I need to search the internet for why my experiment works? because I already came across these two sites and they did not help.
March 11, 2012

science-Help!
What does it mean in the scientific method that the second step is research? I need to write up the 5 steps of scientific method explaining my experiment-how do i do research?
March 11, 2012

Physics
Electrical conductivity in liquid solutions depends on the presence of free 1) neutrons 2) protons 3) molecules 4) ions explain please I really don't understand this question
March 7, 2012

U.S History
Why was there an Agricultural boom during WW1? Why did the boom come to an end?
March 7, 2012

Calculus
Sketch a possible graph for a function that has the following characteristics. f(0)=2.5 -horizontal asymptote is y=3 -Vertical x=4 -f'(x)<0 and f''(x)>0 for x>4. -f'(x)<0 and f''(x) <0 for x<4 I got the horizontal and vertical but I ...
March 2, 2012

physics
wo packages at UPS start sliding down the ramp shown in the figure. Package A has a mass of 4.50 and a coefficient of kinetic friction of 0.190. Package B has a mass of 10.5 and a coefficient of kinetic friction of 0.170.
February 20, 2012

math
. If the mean of six values is 59 and five of the values are 42, 76, 59, 51, and 72 find the sixth value.
February 9, 2012

physics
How to calculate the potential energy in a CR circuit with a resistor and 10micro-farrad capacitor before the switch is closed. the capacitor has a charge of 100 v and two seconds after the switch is closed looses 37% of its original value.
February 5, 2012

math
$5 - 110 $10 - 220
January 10, 2012

Spanish-Please check SraJMcGin if possible
Thank you so much-really appreciate it-
January 10, 2012

Spanish-Please check SraJMcGin if possible
Please check if you have time we had to select the correct answer for the two questions 1.¿Ellas te escuchan? Ellas me escuchan. 2. ¿Me escuchas? Te escucho.
January 10, 2012

Spanish-Please check SraJMcGin
This is a diffeent one that the one you checked earlier and thank you again
January 10, 2012

Sapnish-Please check SraJMcGin
Please check if you have time we had to select the correct answer for the two questions 1.¿Ellas te escuchan? Ellas me escuchan. 2. ¿Me escuchas? Te escucho.
January 10, 2012

Spanish-Thank you Sra
Thank you very much That was pretty funny about me eating myself-thank you for pointing that out-my teacher would have thought I was muy tonto!
January 10, 2012

Spanish-Thank you
Thank you for doing that-I really appreciate it-I'm alittle confused on this stuff
January 10, 2012

Spanish-7thgrade
I had to write a paragraph about what my mom did yesterday and I had to use SOME REFLEXIVE VERBS- I'm not sure if this is correct. Mi madre se despertó a las seis de la mañana. Ella se despertó cuando escuchó e l despertador. Ella se levant&...
January 10, 2012

Korean
how do you say merry christmas in korean?
December 6, 2011

algebra
y=5x+3
December 6, 2011

Algebra
I need to use Pascal's Triangle to expand (x-1)^5 I know I use the fifth row but I'm not sure how to do it- I have a bunch of these and I'm really confused- Please help if you can-
December 5, 2011

Algebra
oh okay-thank you
December 2, 2011

Algebra
Explain what happens to the graph y=4^x if you change it to 4^(x+3)+ 2 would it move 3 units to the right and 2 units upward-I'm thinking becaue youi're adding to the x??
December 2, 2011

Economics
C.
November 29, 2011

calculus
They want the answer in radians not degrees. So it's pi/2
November 13, 2011

Physics
throw it away from the station with as much force as she can, and make sure she doesn't miss, so she will float back to the station
November 13, 2011

physics
To enter the main pool at an amusement part, a swimmer uses a water slide which has a vertical height of 2.65 m. Find her speed at the bottom of the slide if she starts with an initial speed of 0.950 m/s.
November 10, 2011

physics
A 9.90-g bullet has a speed of 1.33 km/s. (a) What is its kinetic energy in joules? (b) What is the bullet's kinetic energy if its speed is halved? (c) What is the bullet's kinetic energy if its speed is doubled?
November 10, 2011

physics
A 9.90-g bullet has a speed of 1.33 km/s. (a) What is its kinetic energy in joules? (b) What is the bullet's kinetic energy if its speed is halved? (c) What is the bullet's kinetic energy if its speed is doubled?
November 10, 2011

Math Homework Help Please
630?
November 6, 2011

Math Homework Help Please
Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) $3,000 balance, 21% rate, $150 payment, average ...
November 6, 2011

Math Homework
Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) $3,000 balance, 21% rate, $150 payment, average ...
November 6, 2011

Math
21?
November 6, 2011

Math
Convert the following credit card rate to the APR. Oregon, 1 3/4% per month , = 1.75%?
November 6, 2011

math
THANKS!!!
November 6, 2011

math
Suppose you see a car with an advertised price of $28,450 at $594.60 per month for 5 years. What is the amount of interest paid? $7226? please help
November 6, 2011

MATH
Convert the following credit card rate to the APR. Oregon, 1 3/4% per month 1.75 % IS THIS CORRECT?
November 5, 2011

MATH
Thanks for your help, I'm not sure how but I kept getting 1.06%
November 5, 2011

MATH
A car dealer will sell you a used car for $5,430 with $430 down and payments of $183.06 per month for 36 months. What is the simple interest rate? (Round each answer to the nearest tenth.) PLEASE HELP!
November 5, 2011

5th Grade Math
Use the terms factor, divisor,multiple, product and divisible by to write as many statements as you can about the number sentence below. 7*9=63
October 24, 2011

physics
448000000
October 24, 2011

chemistry
it isn't necessary to change the mass in grams to moles. the equation reads out q=s*m*(final temp - initial temp) where q is the change in enthalpy, s is specific heat, and m is mass.
October 20, 2011

STATS
Scientists wish to test the mind-readiing ability of a person who claims to have ESP. They use five cards with different and distinctive symbols( square, cicrle, triangle, line, squiggle). Someone picks a card at random and thinks about the symbol. The mind-reader must ...
October 17, 2011

calculus
How to solve for "t" - step-by-step sqrt(2t-1) + sqrt(3t+3) = 5 Thank you very much.
October 15, 2011

Physics
Moment of Ineria= 1/2 MR^2 = 1/2 (3.565kg)(0.0950m)^2= 0.016 kg.m^2
October 13, 2011

Math
i dont know
September 28, 2011

Pre-Calc
I posted yesterday and didn't get a response so I'm hoping someone can check these today-Thank you they are polar coordinate questions--My answers are her I just need them checked- 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)...
September 28, 2011

Pre-Calc-Please check I'm desperate
Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 ...
September 27, 2011

Pre-Calc
Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 ...
September 27, 2011

Pre-Calc
Please check my answers;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a ...
September 27, 2011

Pre-Calc P lease check
Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....
September 27, 2011

Pre-Calc
Please check my answers; 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....
September 27, 2011

Physics
Emily takes a trip, driving with a constant velocity of 79.5 km/h to the north except for a 22 min rest stop. If Emily's average velocity is 68.8 km/h to the north, how long does the trip take?
September 24, 2011

science/math
A car travels up a hill at a constant speed of 45 km/h and returns down the hill at a constant speed of 70 km/h. Calculate the average speed for the round trip.
September 24, 2011

Science/math
Emily takes a trip, driving with a constant velocity of 79.5 km/h to the north except for a 22 min rest stop. If Emily's average velocity is 68.8 km/h to the north, how long does the trip take?
September 24, 2011

visual basic 2010
Write a program to determine a person's weekly pay, where they receive time and a half for overtime work beyond forty hours.
September 18, 2011

6th grade
interview some from 9/11
September 11, 2011

6th grade
describe yourself mathamatically
September 11, 2011

Algebra
How to write an equation for this problem: A boat rental company charges a $5 usage fee and $10 an hour to rent a canoe. How long did you rent the canoe if you were charged $45?
September 10, 2011

Algebra
How to write an equation for this problem: A boat rental company charges a $5 usage fee and $10 an hour to rent a canoe. How long did you rent the canoe if you were charged $45?
September 10, 2011

chemistry
2540J/115g*.385J/gC=57.36871824
September 7, 2011

math
108=4x3 to the what power
August 30, 2011

Writing
Aristotle observed arguments only have two parts: statement and proof. T/F
June 26, 2011

Statistics
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Student's grades - A, B, or C, on a test.
June 26, 2011

Applied Physics
The weight density of a quart of oil is 56.9 lb/cubic foot. The weight of the oil is 1.90lb.
June 8, 2011

Elementary Statistics
A manager needs to fill three positions, computer softer engineer, team-leader, and test engineer. The manager finds 5 applicants that qualify for all three jobs. How many different ways can the manager place those 5 people into the three possible positions?
June 8, 2011

english
deez nuts
May 17, 2011

MATHS
A ROOM WALL MEASUREMENT IS LENGTH 54FT,HEIGHT 11FT.HOW MANY SQUARE METERS OF TILES WILL COVER THE WALL? THE TILES SIZE IS 8/12CM .
May 4, 2011

Language Arts
Relation between the words read and watch
April 25, 2011

finance
In other words Statements A-C are all false. D is true.
April 16, 2011

finance
The best answer is D A - sometimes, in questions like these, the examiner discusses the building/land cost. But they say they could sell it / lease it at X amount today. That sale would be an "opporunity cost" - and it would be counted. B - Just the oppoisite of what...
April 16, 2011

English
Thank you so much! When I say tone, I'm referring to the feeling behind the passage.. Ex: Dr. Seuss writing has a light, whimsical tone. Or Joan Dilard tends to be very dark and brooding.
March 24, 2011

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