Sunday
September 21, 2014

Posts by tracy


Total # Posts: 746

Physics
A crystal chandelier hangs in a fancy ballroom. Draw a free body diagram for the chandelier, including all vertical forcs affecting it. Please help :)
February 4, 2012

Physics
A toddler on a tricycle slowly rolls down a steep hill withour pedaling. It takes her six seconds to reach a speed of 8.1 m/s. Find the toddler's acceleration. a=v/t 8.1 m/s / 6 = 1.35 m/s^2 how far has the toddler traveled? d=vot + 1/2 at^2 (8.1)(6) + 1/2 (1.35)(6)^2 48.6...
February 4, 2012

Physics
Jamaican sprinter Usain Bolt holds the world record for the men's 100 meter dash with a time of 9.58 seconds. Another runner is training to break this record and finds that he can accelerate at a constant rate of 1.07 m/s^2. Assuming that the runner starts from rest, will ...
February 4, 2012

Physics
A 784 Newton astronaunt travels to Neptune's largest moon, Triton, with a simple bathroom scale. While standing on the surface of the moon, he finds that he now weighs only 62 Newtons. What is g, acceleration due to gravity, on Triton? g=weight/mass Is that 784/62? Sorry ...
January 28, 2012

Physics
A 784 Newton astronaunt travels to Neptune's largest moon, Triton, with a simple bathroom scale. While standing on the surface of the moon, he finds that he now weighs only 62 Newtons. What is g, acceleration due to gravity, on Triton?
January 27, 2012

world history
on july 14, 1789 a mob of people stormed a prison that held political prisoners, revolting against the injusticess of the governing party. in which country did this occur? I say France
January 24, 2012

world history
samurai
January 24, 2012

world history
Select the Japanese figure of the feudal warrior society whose role was similar to that of the knight in Medieval Europe. I say emperor
January 24, 2012

world history
I take that back its ukiyo-e
January 24, 2012

world history
What Japanese art form, meaning "pictures of the floating world," was created using woodblock prints and greatly impacted Western art, particularly Impressionists in Europe and America? I say haiku
January 24, 2012

world history
In 1962, President John F. Kennedy was faced with a decision to avoid nuclear war. What occurred to place the United States in that position? I say The Soviets placed missiles in Cuba.
January 22, 2012

world history
What Muslim country was created when India was separated due to religious conflicts? I say Pakistan
January 22, 2012

world history
What event occurred in Tiananmen Square in 1989? I say Pro-democracy protesters were killed by government troops.
January 22, 2012

world history
After World War II, Africa's economy was based on agriculture. I say false
January 22, 2012

world history
Select the nation that was created in 1947 in the Middle East to provide a homeland for Jewish people. I say Israel
January 22, 2012

world history
Which of the following is NOT true about Nelson Mandela? I say B. He led massive peaceful protests against apartheid.
January 22, 2012

world history
During the 1990s, the United States became involved in a military dispute involving which nations? I say Iraq and Kuwait
January 22, 2012

world history
In which country were apartheid laws created that prohibited interracial marriage and otherwise segregated the races? I say South Africa
January 22, 2012

world history
Which of the following nations possess nuclear weapons? I say North Korea
January 22, 2012

world history
In which country did Eva Perón work with her husband, President Juan Perón, to improve the lives of the poor and working class? I say Argentina
January 22, 2012

world history
Vietnam had been a colony controlled by what nation prior to World War II? I say France
January 22, 2012

world history
What has happened to the leadership of Cuba since Fidel Castro stepped down due to illness? I say his brother, Raul, has taken Fidel's place.
January 22, 2012

world history
North Korea's capitalist economy has surged over the last decade due to increasing exports. I say false
January 22, 2012

world history
What agreement was signed in 1992 between the United States, Mexico, and Canada? I say North American Free Trade Agreement
January 22, 2012

world history
Who came to power in China, instituting a Communist regime that would bring great suffering to the nation's people? I say Mao Zedong
January 22, 2012

world history
Which two nations rose as the world's superpowers after World War II? I say United States and the Soviet Union
January 22, 2012

world history
Why is war against terrorists difficult to fight? C. Members of terrorist groups are scattered throughout the world, so there is no one clear target. D. Terrorists leave no trace of their plans. I say C.
January 22, 2012

world history
What nation experienced the Velvet Revolution, a peaceful and non-violent movement that removed communists from power? I say Czechoslovakia
January 22, 2012

world history
Which of the following is NOT true about the arms race between the United States and the Soviet Union during the cold war? A. The Soviet Union created the first man-made satellite, prompting the United States to develop the National Aeronautics and Space Administration (NASA...
January 22, 2012

world history
To what did the U.S. Supreme Court case Brown v. Board of Education refer? A. women's rights in America B. racial segregation in American schools C. the 1960s counterculture in America D. American reaction to terrorist attacks I say B.
January 22, 2012

world history
Mikhail Gorbachev's concept of glasnost referred to an openness to communicate to the West in an attempt to pull the Soviet Union out of a poor economy. I say false
January 22, 2012

world history
In what nation did the Soviet Union place missiles, which was viewed as a threat to the United States and prompted action by President John F. Kennedy I say Cuba
January 22, 2012

world history
What is true about the key German leaders who were responsible for the Holocaust? A. The Marshall Plan provided them with the opportunity to emigrate to the United States and avoid trial. B. The Potsdam Conference, held in Potsdam, Germany, revealed that only Adolf Hitler was ...
January 22, 2012

world history
Which two superpowers engaged in an arms race during the cold war as they competed with each other to acquire advanced weaponry and build up their militaries? I say United States and the Soviet Union
January 22, 2012

world history
The Marshall Plan was enacted to support a U.S. foreign policy to keep communism from spreading, also known as. A. containment. B. deterrence. C. the Nuremberg Trials. D. NATO. I say A. CONTAINMENT
January 22, 2012

world history
soviet union
January 22, 2012

world history
which country was invaded by German forces, in spite of having signed a non-aggression pact with Germany in 1939?
January 22, 2012

world history
true
January 22, 2012

world history
Hitler�s �Final Solution� referred to the extermination of the Jewish population living in and around Germany during the time of World War II. This resulted in the execution of over 6 million Jews. true or false I say its true
January 22, 2012

world history
Which system of government rests furthest left on the political spectrum and, as a totalitarian regime, focuses on the government owning all aspects of the economy, including property and the means of production?
January 22, 2012

Physics
A car sits at a red light. Once the light turns in green, the driver accelerats at a rat of 3.5m/s^2. How far has the car moved after 6 seconds? I have so far d= (1/2)at^2 please check is it (1/2)(3.5m/s^2)(6 seconds) is the answer 1.75 m/s^2 x 6 sec=10.5 m/s^2? Thank you
January 16, 2012

physics
An airplane starts from rest and moves forward with a constant acceleration of 5 m/s2 along a runaway 250 m long. How long does it take the plane to reach a speed of 46.0 m/s?
January 14, 2012

computer sciece
Let INFINITE PDA ={<M>|M is a PDA and L(M) is an infinite language} Show that INFINITE PDA is decidable.
January 9, 2012

ALGEBRA 1
thanks
December 25, 2011

MAth
thank you
December 25, 2011

MAth
ok
December 25, 2011

YOUR WRONG MS.SUE
IT SHOULD BE WITHOUT GAPS
December 25, 2011

MAth
But look consecutive numbers are Numbers which follow each other in order, without gaps, from smallest to largest. 12, 13, 14 and 15 are consecutive numbers. THEY ARE NOT EVEN
December 25, 2011

MAth
i dont get tell me please
December 25, 2011

MAth
is that correct
December 25, 2011

MAth
The sum of four consecutive integers is at least 114. Find the smallest possible values for these numbers. HOW YOU DO THIS?
December 25, 2011

MATH
the answer is 192 + 40pie that equals 317.6 inches square
December 23, 2011

MATH
I'm really confused how you do this Two unequal semicircles, a square , and a rectangle are joined. If the dimensions of the rectangle are 8in by 16in, find the are of the entire region to the nearest 10th. theres a rectangle in the middle and semi circle on top and side
December 23, 2011

eng 101
I have an expository essay I have to write on healthful eating. Can anyone give me any pointers on this topic?
December 14, 2011

english
significance of the Hamlet quote, "I see a cherub that sees them. But come for England. Farewell, dear mother.
December 11, 2011

english
Act IV of Hamlet 1. What is the King's original plan for eliminating Hamlet? 2. What does Hamlet learn from Fortinbras's captain about their mission into Poland? How does this affect Hamlet? 3. What is the plan and back-up plan that Claudius concocts with Laertes? 4. ...
December 11, 2011

history
At the close of the Crimes and Misdemeanors, Levy has the final word in a voice over narration: “It is only we, with out capacity to love, that give meaning to an indifferent universe. And yet, most human beings seem to have the ability to keep trying and find joy from ...
December 8, 2011

preposition questions
I love this. I am very bad at appositives and prepositions.i get those two mixed up. I think this is an awesome website for people like me who need help!😄😃
December 7, 2011

computer sciece
1.which directory does Vim to load color scheme? 2.Set a key mapping in Vim and explain how it works? can someone help me with this questions...
December 5, 2011

english
I figured it out, its false.
December 1, 2011

english
the climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. true or false
December 1, 2011

Computer(Math)
Let C { x#y| x,y ∈ {0,1}* and x ≠ y} show that C is a context free Language...
November 28, 2011

computer sciece
Baud Rate Generator: library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity br_gen is generic(divisor: integer := 3); port( sysclk:in std_logic; --system clock sel :in std_logic_vector(2 downto 0); bclkx4:buffer std_logic; --baud rate X 8 bclk :out ...
November 27, 2011

calculus
find the average value of the function i=15[1-e^(-1/2t)] from t=0 to t=4 A. 7.5(1+e^-2) B. 7.5(2+e^-2) C. 7.5(2-e^-2) D. 7.5(3-e^-2)
November 23, 2011

calculus
Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)
November 22, 2011

Calculus still confused
Find the length in the first quadrant of the circle described by the polar equation r=(2 sin theta)+(4 cos theta) A. (sqrt2)(pi) B. (sqrt5)(pi) C. (2)(pi) D. (5)(pi)
November 22, 2011

Calculus please help
Find the centroid of the area bounded by the parabola y=4-x^2 and the x-axis A.(0,1.6) B.(0,1.7) C.(0,1.8) D.(0,1.9)
November 22, 2011

Calculus
Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = (2 sin theta)+(4 cos theta) A. 5pi/2 B. (5pi/2)+4 C. 5pi D. 5pi + 8
November 21, 2011

CALCULUS
evaluate the integral of (e^3x)(cosh)(2x)(dx) A.(1/2)(e^5x)+(1/2)(e^x)+C B.(1/10)(e^5x)+(1/2)(e^x)+C C.(1/4)(e^3x)+(1/2)(x)+C D.(1/10)(e^5x)+(1/5)(x)+C
November 20, 2011

calculus
Evaluate the integral of xe^2x(dx) A. (1/6)(x^2)(e^3x)+C B. (1/2)(xe^2x)-(1/2)(e^2x)+C C. (1/2)(xe^2x)-(1/4)(e^2x)+C D. (1/2)(x^2)-(1/8)(e^4x)+C
November 20, 2011

calculus
Evaluate the integral of (x)cos(3x)dx A. (1/6)(x^2)(sin)(3x)+C B. (1/3)(x)(sin)(3x)-(1/3)(sin)(3x)+C C. (1/3)(x)(sin)(3x)+(1/9)(cos)(3x)+C D. (1/2)(x^2)+(1/18)(sin)^2(3x)+C
November 19, 2011

Calculus
evaluate the integral of dx/square root of 9-8x-x^2
November 19, 2011

Calculus
Evaluate the integral sin4x cos^2 4x dx A. cos^3 4x/3 +C B. - cos^3 4x/3 +C C. cos^3 4x/12 +C D. -cos^3 4x/12 +C
November 19, 2011

english
This is a room that has no floor, no walls, no windows, and also no door. what is it?
November 18, 2011

calculus
This is an add on to the question above. Thought this might help here are the answer choices: A. e^x/y xy+e^x/y y^2+y^2 ----------------------- e^x/y xy+e^x/y x^2+y^2 B. e^x/y xy+e^x/y y^2-y^2 ---------------------- e^x/y xy-e^x/y x^2+y^2 C. e^x/y xy+e^x/y y^2+y^2...
November 17, 2011

calculus
Calculate dy/dx if Ln(x+y)=e^x/y
November 17, 2011

english
what three words create assonance in the stanza One day a girl went walking and stepped into a store she bought a pound of sausages then set them on the floor.
November 11, 2011

english
which of the following is not Abrahamic religion? a. christianity b. buddhism c. judaism. d. islam
November 9, 2011

algebra
using the letters in the word "MAGIC,", find the number of permutations that can be formed using 3 letters at a time A. 20 , B. 30 , C. 40, D. 60
October 26, 2011

computer sciece
Sorry this is the one that I wrote with an error the first one is incorrect.... #include <stdio.h> #include <stdlib.h> int main() { int num[100]={0}; int i,n=0; for(i=0; num[i] != EOF ; i++,n++) { scanf("%d",&num[i]); } printf("%d\n", i); For(i=...
October 26, 2011

computer sciece
#include <stdio.h> #include <stdlib.h> int main() { int num[100]={0}; int i,n=0; for(i=0; num[i] != EOF ; i++,n++) { scanf("%d",&num[i]); } printf("%d\n", i); while(i=0;i<n;i++) printf("%d ",num[i]); printf("\n"); system(&...
October 26, 2011

algebra
Solve the following equation. can you show the steps so I know how to do them? x over x+3 + 2 over 5 = 0
October 25, 2011

Finance
Suppose that you save for retirement by contributing the same amount each month from your 23rd birthday until your 65th birthday, in an account that pays a steady 4% annual interest compounded monthly. (a) How much will be in your fund at age 65 if you save $100 a month?
October 25, 2011

algebra,math
which of the following is a solution for the ststem y = 3x + 5 and y = 2x + 5 a. (1, 7) b. (5, 0) c. (2, -1) d. ( 0, 5)
October 25, 2011

algebra,math
thank you
October 24, 2011

algebra,math
upward
October 24, 2011

algebra,math
I do know, but wanted to make sure, answer is upward
October 24, 2011

algebra,math
The parabola for the function will point in which direction? y = x^2 + 3x - 4 A. Upward B. Downward
October 24, 2011

algebra
answer is x=5/4
October 24, 2011

algebra
What is the equation for the axis of symmetry in the function? y = -2x^2 + 5x - 4
October 24, 2011

algebra
The vertex of y = 9 - 8x - x^2 is (-4, 25) True False
October 24, 2011

algebra
x= -1.5
October 24, 2011

algebra
What is the axis of symmetry for the function? y = x^2 + 3x - 4 A. y = -2 B. y = -1.5 C. x = -2 D. x = -1.5
October 24, 2011

algebra
-2
October 24, 2011

algebra
Which coefficient in the function tells us that the parabola for the function will point downward? y = -2x^2 + 5x - 4
October 24, 2011

algebra,math
What is the axis of symmetry for the function? y = x^2 + 3x - 4
October 24, 2011

algebra,math
I think I got it, its 20
October 24, 2011

algebra,math
Solve the equation. 4 times the square root of x minus 5 minus 8 = 12
October 24, 2011

algebra
Use the Pythagorean Theorem to determine if the three numbers could be the measures of the sides of a right triangle. Assume that the largest is the hypotenuse. 20, 6, 21 A. yes B. no
October 24, 2011

algebra,math
Solve the equation. Check both solutions and only write the real solution. the square root of 6m minus 5 = m A. {1} B. {5} C. {1, 5} D. no real solution I think its B
October 24, 2011

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