About Algebra Problem Again..Help

Algebra Problem Again..Help?
Anthony leaves his ouse on his bike traveling at 18 mph. Thirty minutes later, his brother chandler takes after him at 24 mph. How long will it take chandler to catch upto Anthony?
Mathematics - 2 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
rate times time equal distance, and they travel the same distance. Let t=Anthony's time in hours. Let t-.5 = Chandler's time in hours. 18t = 24(t-.5) 18t = 24t - 12 12 = 6t t = 2 hours
Answer 2 :
Hours Chandler catches up (x): 18(x + 1/2) = 24x 18x + 9 = 24x 6x = 9 x = 9/6 or 3/2 or 1 1/2 Answer: 1 1/2 hours Chandler catches up with Anthony. Proof (equal distance traveled): 18 mph(1 1/2 + 1/2 hrs) = 24 mph(1 1/2 hrs) 18 mph(3/2 + 1/2 hrs) = 24 mph(3/2 hrs) 18 mph(4/2 hrs) = 36 mi 18 mph(2 hrs) = 36 mi 36 mi = 36 mi

 Read more other entries : 

About Who has Karaoke in the Phoenix area

About Momentum & Work problems: A 1 kg gun fires a 20 gram bullet that travels at 100 m/s

Momentum & Work problems: A 1 kg gun fires a 20 gram bullet that travels at 100 m/s...?
A 1 kg gun fires a 20 gram bullet that travels at 100 m/s. What will be the speed of recoil imparted to the gun, assuming that momentum is conserved perfectly (no heat generation)? A. 2 m/s B. 0.2 m/s C. 1.75 m/s D. 2.25 m/s E. None of the Above How much impulse did the gun mentioned above experience? A. 4 kg m/s B. 2 kg m/s C. 3 kg m/s D. 12 kg m/s E. None of the Above In a perfectly elastic collision, a 1 kg ball travelling at 2 m/s hits a 1 kg ball travelling at 1 m/s in the same direction. What is the total kinetic energy of this system? A. 0 kg m^2/s^2 B. 2.5 kg m^2/s^2 C. 12 kg m^2/s^2 D. 20 kg m^2/s^2 E. None of the Above What is the total momentum of the above system? A. 3 kg m/s B. 0 kg m/s C. 1 kg m/s D. 12 kg m/s Joey and Chandler are both sitting on one end of an 8 meter seesaw. Monica, who weighs 2000 N, comes along and sits on the other end, balancing the seesaw. If Joey leaves, Monica has to move 2.4 m closer to Chandler to balance the seesaw again. How much does Joey weigh? A. 750 N B. 800 N C. 900 N D. 1200 N E. None of the Above //My initial answer here is D but I'm not quite confident. Another friend, Rachel, who weighs 600 N, comes along and sits with Chandler. Monica has to move back to balance the seesaw. How far away will Monica be from Rachel and Chandler? A. 3 m B. 3.2 m C. 3.5 m D. 3.7 m E. None of the Above Brief explanations will do. :) I get the concepts of the problems but I can't seem to find out how to manipulate figures. Many thanks!
Physics - 2 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
1) By the law of momentum conservation:- =>m1u1+m2u2 = m1v1+m2v2 =>0 + 0 = 20 x 10^-3 x 100 + 1 x v2 =>v2 = -2 m/s [-ve just indicating the direction of gun recoil is opposite to the velocity of the bullet] =>A 2) By Impulse(I) = ∆P = m∆v = 1 x 2 = 2 kg-m/s =>B 3) KE(total) = 1/2m1u1^2 + 1/2m2u2^2 =>KE(t) = 1/2 x 1 x (2)^2 + 1/2 x 1 x (1)^2 =>KE(t) = 2.5 J =>B 4) P(total) = m1u1+m2u2 =>P(t) = 1 x 2 + 1 x 1 =>P(t) = 3 kg-m/s =>A 5)Let the weight of Chander is W1 Newton =>W1 x 4 = 2000 x (4-2.4) =>W1 = 800 Newton =>Joyes weight = 2000 - 800 = 1200 Newton =>D 6) Let Monika is now a meter from the center =>(800+600) x 4 = a x 2000 =>a = 2.8 m =>The distance of Monika from the two = 4 + 2.8 = 6.80 m =>E
Answer 2 :
1. Horizontal Momentum Conservation: m1v1 = m2v2 => 20/1000 * 100 = 1*v2 =>v2 = 2m/s is the recoil speed for the gun. Ans A 2.Impulse = Change in the momentum = Δp = p2-p1 = 2 kg m/s - 0 kg m/s = 2kg m/s. Ans B. 3. Here, both the particles have same mass, thus after the collision their speeds get interchanged. You can verify this from the formula. v1 = (m1-m2)u1+2m2u2/(m1+m2). v2 = (m2-m1)u2 + 2m1u1/(m1+m2). Thus the KE of the system = 1/2*m1*v1² + 1/2*m2*v2² = 1/2*1(v1²+v2²) = 0.5(2²+1²) = 2.5J. Ans B. 4. Total momentum = m1v1 + m2v2 = 1*2+1*1 = 3 kgm/s Ans A. 5. Let the force/weight of Joey and Chandler be J and C respectively. We've (J+C)4 = 2000*4 When Joey leaves, Monica moves 2.4m closer means the new distance is 1.6m 4C = 2000*1.6 =>C = 800 => J = 1200. Ans D You're correct. :) 6.Let the new distance be r for Monica from the axis of rotation. We've (600+800)*4 = 2000*r =>r = 1400*4/2000 = 2.8m Thus Monica is 6.8m(=4m + 2.8m) from Rachel and Chandler. Ans E Hope you get the solution.

 Read more other entries : 

About Who else thinks that the heat vs mavs game w...

About What do you think of thisI think it's total B.S

What do you think of this??I think it's total B.S.!!?
Phoenix 63° Tucson 52° Flagstaff 29° Traffic | Weather JOBS AUTOS REAL ESTATE RENTALS classified yellow pages Ahwatukee Chandler Gilbert Glendale Mesa Northwest Valley Peoria Pinal County Phoenix-Central Phoenix-Northeast Scottsdale Southwest Valley Sun City Surprise Tempe A&E Travel & Explore Viewpoints Food & Drink Home/Real Estate Movie Preview Yes Sunday Monday Tuesday Wednesday Thursday Friday Saturday Get today's Arizona Republic front page via RSS [info | more feeds] VALLEY & STATE online print edition Print Article Email Article Most Popular Change Type Size ASU scholarship program for non-citizens is revived Anne Ryman The Arizona Republic Mar. 6, 2008 12:00 AM A controversial scholarship that benefited Arizona State University students who are in the country illegally is being revived. Since the news media reported last month that the special scholarship's funding had run out for the 2008-09 school year, private donors in the Valley have stepped forward, ASU President Michael Crow said. ASU officials are working with a third-party group to provide scholarship money. Crow said he "can't guarantee," but it's his hope that enough money will be available to cover the estimated 200 to 300 students who have to pay higher, out-of-state tuition as a result of changes in state law. ASU officials are advising those students to go ahead and register for fall courses. advertisement "In the last few weeks, we've made tremendous progress with other parties outside the university to secure the resources," Crow said. "So there will be the resources necessary for these students to continue their education." A fund called the American Dream Fund Coalition has been set up and is being maintained by the non-profit group Chicanos Por La Causa. He estimates the cost at about $3 million a year, adding that the money will come from private sources and not state funding. For the past year, 207 undocumented immigrants who graduated from Arizona high schools have received private scholarship money through the ASU Foundation. The scholarships started after the voter-approved Proposition 300 took effect in late 2006, requiring illegal immigrants to pay out-of-state tuition at the state's universities and community colleges. Out-of-state tuition and fees are about $17,000 a year at ASU while the in-state amount is nearly $5,000. The law also prevents illegal immigrants from receiving state scholarships. When Crow announced the scholarships last year, he met with criticism from some state lawmakers who questioned whether the strategy complied with the law. ASU officials have maintained the scholarship is legal because they use private, not state, money. "We're just trying to be helpful to them because many of them are really great students," Crow said. Crow said the students, who ASU calls "special-class international students," are victims of the bad public policy of various countries, including the United States. Not all the students are from Mexico, he said. Some are from China and other countries, and they lack proof of citizenship or legal residency. "It turns out somehow they've ended up in the United States, and they have citizenship nowhere," he said. Private citizens have come forward with donations, he said, "and that's going to be how they are going to pay for their education going forward." State Rep. John Kavanagh, R-Fountain Hills, said he has no problem with private groups' fundraising, but ASU should steer clear of any involvement. "ASU can't work behind the scenes," he said. "They can't work upfront and dispense these (scholarships). They can't have any involvement."
Immigration - 9 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
Gee, a lot of American students are capable of working their way through school - why can't these people.
Answer 2 :
I am strongly against illegal immigration. First, if private people want to donate money that is their choice. (even if i disagree with it) Second, how are these students enrolling. Don't you have to have a visa. This is a publicly funded university. Why isn't the federal government and state not stopping this?
Answer 3 :
It is a private group. They are free to give money to anyone they want. So, do you want the State to dictate now to who we can give money too?
Answer 4 :
Anyone who knowingly helps an illegal alien in any way should be executed. Plain and simple.
Answer 5 :
That IS total B.S., it is 63 degrees in phoenix!!! It is only like 30 where I am.
Answer 6 :
Arizona should have ALL of it's federal funds cut off. They are aiding and abetting known criminals.
Answer 7 :
That IS total B.S., it is 63 degrees in phoenix!!! It is only like 30 where I am
Answer 8 :
i have 5 kids .i can not get grant for my kids i pay for every thing. i was laid off i july i get no public aid no help i have been working for 30 yrs i got no unemployment and a kick in the but my taxes pays there bills for free thay can go to hell n back to Mexico i get no help maybe because i am a white male you tel. me. f k Mexico and there kids
Answer 9 :
I think that's great. $12 grand a year per student going into the university system in Arizona. That's money that's NOT going to La Raza or any other group. Does it exclude your children? Well, a case could be made that it's for ALL students who can't prove residency or are "undocumented". I believe it's illegal to discriminate based on nationality, so I think non-residents who go to ASU shoudl apply! Come on! Everyone jump in on the money bandwagon. Edited to say: I don't think it's great that illegal immigrants are attending our colleges. I think it's great that those who support illegal immigration are having to put their money where their mouth is. Given that these scholarships are for the "undocumented", I see no reason why EVERY student shouldn't apply for them and "lose" their documentation. Sure, I look and talk like I was born in Iowa - but I have no documention to show that I'm not qualified for this scholarship. They can't discriminate based on country of origin, so use our laws against them

 Read more other entries : 

About MJ fans. Do you wonder what might have been ...

About does this story sound interesting

does this story sound interesting?
I'm writing a zombie story called Undead Encounters here's the plot of the story and what i have so far. The rise of a zombie attack only happening in America. Doctors have been putting viruses in shots (without knowing) that cause severe damage to the brain and kills that person within two weeks of injection. That said person then comes back alive with a severe hunger for human flesh. Story revolves around 6 teenagers, a teacher, and a police officer who are trying to get on a boat to safety. They live up north in South Carolina and have to get to the seaport (Naval Weapons Station Charleston) Their main goal is to get aboard the ship to an island where they then can travel to another country. Trinity Knight: senior high school student. Trish Knight: senior high school student(told in her point of view) Spencer Johnson: senior high school student Chandler Smith: senior high school student Nathaniel Greer: Senior high school student Victor Wilson: the History teacher Rebecka Thompson: the police officer Donald Porter: the military kid Story starts out at a high school. (South Bend High School) a group of friends are staying after school shooting a video. Later they start to hear police sirens, screams, and worst of all, some of the after school students and teachers are acting strange. The faces of their peers and teachers has turned a sickly pale color and are walking overly slow! People inside and out of the school are running around and screaming their heads off, and the only thing running through this group of friends minds is Zombies! more about the characters. Characters (main) Trish Knight: main character of the story. Told in her eyes. Hard working Senior student. Very cautious and a what if person. She’s the brains of the group. She’s the advice giver. The shortest one of the group. Has Dark brown hair. Trinity Knight: Trish’s older sister. She was held back so she could graduate with her sister. She’s the one that will shoot first and ask questions later. Fights with emotion and Has a very smart mouth. Always tries to be the leader since she is older then every one else. Very tall and slender. Black hair. Has a “I will win” attitude. Spencer Johnson: The trouble maker. Always late for class and ends up in detention most of the time. Likes to start a fight. Never one to hesitate. Spiky dirty blond hair. Caucasian Chandler Smith: The Football player. Laid back kind of guy. See things for what they are accepts them. Ready to take on what lies ahead of the game. (him and Trish have a small thing for each other, as the story goes on their relationship to one another progresses) African American. Nathaniel Greer: the attention grabber. Wants everyone to know him for some great. Tries to be the hero and takes risks. (gets himself killed by trying to be the hero) African American. Victor Wilson: The serious thinker. Well organized and hard working. Very concerned for others. Not one to persuade easily. Has a medium tan complexion. Dark hair Rebecka Thompson: The warm-hearted red head. Has a strong sense of duty and responsibility. Also is a little out spoken. Some time leads with emotion. Caucasian Donald Porter: the young bleach blond haired military kid. Only interested in saving him self. Arrogant and self centered. Wants everything to go his way and to be in control. Caucasian
Books & Authors - 1 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
It sounds interesting. I have a question though, what kind of shot is the doctors giving people? I mean to cause a lot of people to turn into zombies? It must be like a flu shot maybe? It has to be something for a lot of people to go to the doctor to get the shot in a two week period of time

 Read more other entries :

About A letter that needs to be checked

About A letter that needs to be checked

A letter that needs to be checked.?
this is a letter im going to send to friends and family members, but i want to see if anyone sees any corrections, or has some advice on what to add. thanks! Dear __________, This summer I have decided to travel with Nancy Harmon and the Mighty Warriors, a program that help teach and develop students. The Mighty Warriors were first organized by Nancy Harmon in 1994 with six young people. There has been over one thousand young people travel in evangelism with Miss. Harmon over the past forty years. The Warriors come and develop quickly as they are given a platform on which to express their hearts and become anointed Teachers, Preachers, Youth Pastors, Worship Leaders, or whatever God has assigned them to do. I have prayed about it and feel that God’s plan involves me traveling with Nancy Harmon and the Mighty Warriors this summer. However, in order for me to travel with Miss. Harmon this summer I have to raise $1,700 by June ($700 of that must be turned in by the end of March.) So I am asking you to donate or pledge any amount of money you can to help me reach my goal of traveling with Miss. Nancy. Everything is appreciated; if you are not able to give any money I would appreciate prayers towards this goal. Sincerely, Christopher Chandler P.S If you are interested in finding out more about Miss. Nancy and the Mighty Warriors visit nancyharmon.org.
Homework Help - 1 Answers
People's Answers, Critics, Comments, Opinions :
Answer 1 :
Dear __________, This summer I have decided to travel with Nancy Harmon and the Mighty Warriors, a program that helps teach and develop students. The Mighty Warriors were first organized by Nancy Harmon in 1994 with six young people. There have been over one thousand young people who have travelled in evangelism with Miss. Harmon over the past forty years. The Warriors develop and grow quickly as they are given a platform on which to express their hearts and become anointed Teachers, Preachers, Youth Pastors, Worship Leaders, or whatever God has assigned them to do. I have prayed about it and feel that God’s plan involves me traveling with Nancy Harmon and the Mighty Warriors this summer. However, in order for me to travel with Miss. Harmon this summer I have to raise $1,700 by June ($700 of that must be turned in by the end of March.) So I am asking if you could donate or pledge any amount of money that you can spare to help me reach my goal of traveling with Miss Nancy. Everything is appreciated; if you are not able to give any money I would appreciate prayers towards this goal. Sincerely, Christopher Chandler P.S If you are interested in finding out more about Miss. Nancy and the Mighty Warriors visit nancyharmon.org

 Read more other entries : 

About Hotel near Tempe, AZ? see list