Thursday
November 27, 2014

Posts by Nick


Total # Posts: 1,081

Probability
A coin is tossed 7 times. What is the probability of getting four heads. My teacher said that there is a formula involved but i don't know which one. How do i set it up?
November 19, 2009

social studies
what colonies did the French found as a result of searching fo rthe Northwest Passage?
November 18, 2009

School
Sorry, I meant how can you prove that the equation of any circle with radius (r) and the center at the origin is x^2+y^2=r^2?
November 17, 2009

School
How can you prove that the equation of any circle with radius (r) and the center at the origin is x^2+y^2=36? Please help!?!
November 17, 2009

Grammar
In the following sentence I think ambition is a noun that is an idea. Is that right? The strong supporter of the League of Nations had great ambitions.
November 17, 2009

world history
what are the 5 most important events in the story of columbus
November 12, 2009

Math
This has to do with area. Determining the perimiter would only tell you how many tiles you would need for surrounding the bathroom with tiles. Area would cover the whole bathroom.
November 11, 2009

psychology
d,a
November 11, 2009

math
There is a solution. The solution is an imaginary number.
November 11, 2009

4 grade mat
37
November 11, 2009

4 grade math
false
November 11, 2009

Psychology
1 is right. 2 is wrong
November 11, 2009

French
I would put "Ceux qui ne fument pas sont genes (put accent aigus on both "e"") par les autres qui fument . Not necessary to say les autres gens (we assume already it is people) Do not use bouleverses (it is more emotional)
November 10, 2009

5th Grade Math
right
November 10, 2009

History
How did geography affect arab life
November 7, 2009

7th grade math
even
November 2, 2009

7th grade math
this is a cross word frist question is 2 is the only _____________ prime
November 2, 2009

5th grade - Social Studies
what colonies did the French found as a result of searching for the Northwest Passage?
October 28, 2009

Physics
a bottle is given a push along a frictionless tabletop and slides off the edge of the table (a) what forced are exerted on the bottle while (i) it is being pushed (ii) on the table free of push(iii)falling from the table to the floor. (b) what is the reaction force to each ...
October 6, 2009

BIOLOGY
BARRIER
October 6, 2009

Physics
you a resident physician are reading the medical chart o a normal adult female patient carelessly one of the nurses has entered this nurse's suggestion is physically reasonable: (a) the number is 150 and units are kilograms. (b) the number is 4.25 and the units are slugs...
October 6, 2009

math
5/9 (98.6 F - 32)=
September 29, 2009

physics
In the figure below, a box of Cheerios (mass mC = 1.0 kg) and a box of Wheaties (mass mW = 3.5 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is 2.0 N, and the ...
September 23, 2009

physics
In the figure below, a slide loving pig slides down a certain 18° slide in twice the time it would take to slide down a frictionless 18° slide. What is the coefficient of kinetic friction between the pig and the slide? Explanation would be helpful.
September 23, 2009

4th grade
what happens to the sun's radiation?
September 23, 2009

physics
After flying for 15 min in a wind blowing 42 km/h at an angle of 20° south of east, an airplane pilot is over a town that is 42 km due north of the starting point. What is the speed of the airplane relative to the air?
September 17, 2009

physics
i need more help
September 17, 2009

physics
After flying for 15 min in a wind blowing 42 km/h at an angle of 20° south of east, an airplane pilot is over a town that is 42 km due north of the starting point. What is the speed of the airplane relative to the air?
September 17, 2009

physics
After flying for 15 min in a wind blowing 42 km/h at an angle of 20° south of east, an airplane pilot is over a town that is 42 km due north of the starting point. What is the speed of the airplane relative to the air?
September 17, 2009

physics
Snow is falling vertically at a constant speed of 6.6 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 66 km/h?
September 16, 2009

4th grade
subtractiom\n
September 15, 2009

physics
In the figure below, a stone is projected at a cliff of height h with an initial speed of 45.0 m/s directed 60.0° above the horizontal. The stone strikes at A, 5.20 s after launching. Find the speed of the stone just before impact at A. Find the maximum height H reached ...
September 15, 2009

physics
What is the magnitude of the acceleration of a sprinter running at 9.0 m/s when rounding a turn of a radius 26 m?
September 14, 2009

government
does the senate pass laws?
September 10, 2009

physics(cross products of vectors)
How do I perform the right hand rule? I'm confused.
September 10, 2009

physics
Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?
September 7, 2009

physics
.02 hr
September 7, 2009

physics
Two diamonds begin a free fall from rest from the same height 0.9 s apart. How long after the first object begins to fall will the two objects be 11 m apart?
September 7, 2009

Science
A ball thrown from the edge of a 35m high cliff takes 3.5s to reach the ground below. What was the ball's initial velocity?
September 7, 2009

physics
A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive direction is upward...
September 7, 2009

physics
A lead ball is dropped into a lake from a diving board 5.24 m above the water. It hits the water with a certain velocity and then sinks to the bottom with this same constant velocity. It reaches the bottom 4.86 s after it is dropped. (Assume the positive direction is upward...
September 7, 2009

physics
thanks damon
September 4, 2009

physics
(a) If the maximum acceleration that is tolerable for passengers in a subway train is 1.52 m/s2 and subway stations are located 1030 m apart, what is the maximum speed a subway train can attain between stations? b)what is the travel time between stations? c)If a subway train ...
September 4, 2009

Physics
(a) If the maximum acceleration that is tolerable for passengers in a subway train is 1.52 m/s2 and subway stations are located 1030 m apart, what is the maximum speed a subway train can attain between stations? b)what is the travel time between stations? c)If a subway train ...
September 3, 2009

math
i am working on a math project and i need 10 different representations of the number 256..its due tomorrow
September 3, 2009

physics
The head of a rattlesnake can accelerate 50 m/s2 in striking a victim. If a car could do as well, how long would it take to reach a speed of 78 km/h from rest?
September 3, 2009

Physics
Thank you.
September 3, 2009

Physics
An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until it reaches a speed of 26 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. a)How much time elapses from start to stop? b)How far does the vehicle travel...
September 3, 2009

math
Do you mean a bar or a line?
September 3, 2009

Physics
thanks
September 2, 2009

Physics
A car traveling 56 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.17 s later. a)What was the car's constant deceleration before impact? b)How fast was the car traveling at impact?
September 2, 2009

ALGEBRA 2
a=6,b=8
August 16, 2009

math
I am trying to figure out a lettern pattern and what comes next A,Y,C,W,__ __ ___ I need to explain the rule for this pattern but I am having a hard time
August 13, 2009

science
two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?
June 30, 2009

science
two tuning forks are struck at the same time. one tuning forkhas a frequency of 20hz while the second tuning fork has a frequency of 226 hz. How many beats will result?
June 30, 2009

Mircoeconomics
A significant difference between monopoly and perfect competition is that: A. free entry and exit is possible in a monopolized industry but impossible in a competitive industry. B. competitive firms control market supply but monopolies do not. C. the monopolist's demand ...
June 22, 2009

Math
What is the probability that a random sample of 25 swimmers results in a sample mean of 49 seconds or less?
June 21, 2009

Mathematics
Two readings are taken from an aircraft's flight record Time - 08:55 Distance travelled - 957 Time - 09:07 Distance travelled -1083 For the period of time between the two readings, how do i calculate a)the distance travelled in kilometres and b)the average speed of the ...
June 15, 2009

chemistry
Using your knowledge of atoms describe reasons the paper's physical properties are different from the water's physical properties...Please Help
May 30, 2009

Chemistry
"18 M sulfuric acid is need to prepare 250 ml of a 6.0 M solution" - this is an M1V1 = M2V2 type problem. For help have a look at cal.culate.it/dilution. Meanwhile, using chemCal on the iPhone (cal.culate.it/c) the answer is: 83.3 ml
May 28, 2009

Chemistry
"5.61 moles of KCl and 2.11 kg of water?" Well, water has a density of 1g/ml. So, 2.11 kg, is 2.11 liters. Therefore you have 5.61 moles in 2.11 liters. Molar is moles per liter, therefore, 5.61 / 2.11 = 2.66 M. For help on moles and molar have a look at cal.culate....
May 28, 2009

math
the formula said 23%
May 23, 2009

math
Multiple Choice: For each of the given family incomes, find the maximum amount the family should be able to spend on a house. Family income: $61,575 a)$163,936.50 b)$153,836.50 c)$153,937.50 Family income: $54,800 a)$138,500 b)$137,000 c)$138,000
May 23, 2009

Math
I can't figure any of these problems out any help would be nice peace. Show all steps used to solve the problem. 1.5n + 6 = -4 3.b/-3+5=7 4.17-x/4=-10 5.If 3a - 9 = 6, what is the value of 4a - 1? 6.
May 21, 2009

Bible
please, can anyone help us?
May 20, 2009

Bible
Here are some descriptions and I need to know the correct character: 1.I complained and became a leper 2.I was able to interpret dreams because God revealed them to me 3. I was Jacob's deceptive uncle 4.I was the father of Israel's second King 5.I stole some gold from ...
May 20, 2009

MBA Econ
Business Week, in an article dealing with management, wrote, "When he took over the furniture factory three years ago...[the manager] realized almost immediately that it was throwing away at least $100,000 a year worth of wood scrap. Within a few weeks, he set up a task ...
May 20, 2009

MBA Econ
Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that Congress should force...
May 20, 2009

chemistry
For information on moles and molar have a look at: cal.culate.it/moles and cal.culate.it/molarity
May 19, 2009

science
a compound that has positive and negative ions in a regular pattern or crystal is an_______________
May 14, 2009

spanish sra jmcguin
1. a toy that I had, when young, was a black bear, that I bought in a store. 2. una amiga de infancia ( literally is: a friend from when I was an infant) however is one of those translations that you adapt to the language, so I would say: Sarah is a friend that I know since ...
May 14, 2009

chemistry help
Molecular weight os AgNO3 = 169.87 You have 29.66 g, therefore you have 29.66 / 169.87 moles = 0.174 moles. This is in 100 ml. Molarity is moles per liter, so, 0.174 x (1000/100) = 1.75. Concentration of the solution = 1.75 M. Worked out with chemCal for the iPhone/iPod Touch.
May 9, 2009

Science (urgent)
Suppose 13.7kJ of heat are removed from 33.5g liquid sample of ethanol at 26.8^oC. When all this heatis removed from the substance, at what temperature and in what states will you find the substance?
May 4, 2009

spanish
Well for the first part I know you need a verb (ser) so I think son should be in there and i am pretty sure it is mis since lasses is plural. and for the second part you could say you don't like them instead of you don't enjoy them which would be no me gusta.
May 4, 2009

Chemistry
How did you find that value for K?
May 4, 2009

Chemistry
I am not quite sure how to do this problem, it doesn't seem to fit into any of my given equations: A gas has a volume of 35.5L and a pressure of 765mmHg at standard temperature. If the same sample is placed in a 56.0L container and the pressure is measured at 0.92atm, ...
May 4, 2009

microeconomics
Economyst, why do you bother posting things like "I agree" for mutiple choice questions? Your opinion doesn't matter if "agree or disagree" aren't even options for a viable answer champ.
May 4, 2009

college physics
why nobody is answereing for physics
April 28, 2009

college physics
An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a) the frequency (in...
April 28, 2009

spanish to english
two sports that are needed ball to ball
April 22, 2009

5th grade
T-table Y X 1 -3 3 1 5 5 7 9 a) y=2x-5 b) y=3x-4 c) x=4y-3 d) y=7x-2 which equation does relate to the t-table???
April 22, 2009

world history
what was the document posted to the door of the University of Wittenberg by Marin Luther, that challenged the beliefs of the catholic church.
April 15, 2009

world history
who is the Italian explorer that traveled to the Caribbean on three occasions but was never convinced that he had discovered a new world.
April 15, 2009

social studies
What is china's involvement in the World trade Organization?
March 26, 2009

Re - gurublue
its not writing an essay im having trouble with its writing about baptism in different churches. thanks anyway.
March 20, 2009

Re - bobpursley
i am so sorry to ask again for help but i am struggling a bit with my homework.thanks for finding the website before. i need to write an essay about baptism in different churches. i have used some of the information on the website you kindly found. i was off school when we ...
March 20, 2009

Re - Re teachers
Thankyou for your help .
March 20, 2009

Re - bobpursley
Sorry typing error. what happens during a baptism in a catholic church ,anglican church ,ortodox church and a baptist church. if there are any websites that explain it simply it will be a great help. thankyou for answering so quickly
March 20, 2009

Re - Re teachers
what has during baptism in a Orthodox church , a baptist church, an anglican church and a catholic church? thanks
March 20, 2009

Science
I am doing a power point on hydraulic brakes but I can't find any diagrams of a simple hydraulic brake that points out all the parts but isn't to hard to understand like th ones in the textbook. Does anyone know of any good pictures on the web? thanks:)
March 6, 2009

Chemistry
correct answer for C is 1.8
March 1, 2009

appliance repair
The rotor in a shaded-pole motor consists of a. coils energized by alternating current b. a short-circuited loop of copper wire c. a permanent magnet d. an iron cylinder
February 26, 2009

Science
How many volts does a Printer have? thanks
February 21, 2009

ENGLISH
What does it mean to vary the sentence pattern within a written work?
February 15, 2009

analogies
STRING
February 4, 2009

U.S. History
What are two things the Cherokee did to fit into Georgia's society
January 24, 2009

geometry
the corresponding sides of similar polygons are ?
January 22, 2009

Physics (Motion)
A ballon rises at 14m/s, a boy in the ballon throws a ball straight up at 24m/s. How much later does he catch the ball?
January 19, 2009

Chemistry
So is the answer 74.2g? Or did i do something wrong?
January 18, 2009

Chemistry
What am i supose to do here? A chemist performs the following experiment: 2FeCl3 + 3CaCO3 ---> Fe2(CO3)3 + 3CaCl If he starts with 105g FeCl3 and excess CaCO3 how many grams of CaCl2 will he obtain? Thanks, ~Nick
January 18, 2009

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