Time Zone Questions. Please Help!!! A.S.A.P?
Okay, The Jonas Brothers are having a live chat today (In America) at 5pm est time, but it will be tomorrow in Wellington/Aukland regions in New Zealand which is where i am. I tried working it out and went on sights on youtube and it said that iot would be 11am New Zealand time when it is 5pm EST time. But i didn't think thatw as right so i just tried working it out again and i got that it would be 2pm. So if anyone knows what tiem it owuld be that would be a great help. Its 10:08pm on Sunday January 18th Where I am. So thank you to anyone who helps. Sorry! I wrote youtube :P I meant Google
Other - Destinations - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
11am for you on Monday.
2 :
eWW THe jonhas brothers
Wednesday, December 21, 2011
Wednesday, December 14, 2011
WoW!! Hard physics Question!
WoW!! Hard physics Question!?
a) an 800kg car is at the top of Mount wellington (at a height of 1270m). if the car were allowed to role down the mountain without using any brakes, how fast would the car be travelling when it reaches sea level? Assume that there is no friction. b) after reaching sea level the car hits a ramp that sends it into the air at an angle of 30 degrees. how far would the car fly before hitting the ground? c) if the impact of the car and ground takes 0.1 second, what would be the force on the passengers in the car? 10 points for whoever can ive the best answer and show their working out...Good luck!!
Physics - 8 Answers
Random Answers, Critics, Comments, Opinions :
1 :
whoa blew my mind, and i took this last year
2 :
What angle is the car travelling down the mountain?
3 :
a. The weight of the car is irrelevant. The potential energy at the top of the mountain equals the kinetic energy at the bottom. This will let you solve for the velocity. b. Assume that the velocity does not change while passing the ramp. Resolve the velocity into horizontal and vertical components. Noting that at the top of its arc the vertical velocity is zero, determine the distance that it must fall to re-gain the vertical velocity that it had originally. From this, compute the time, and double that since the car goes both up and down. Use this with the horizontal velocity to get the distance. c. Use the velocity from part a for this. a = dv/dt, and v and t are known.
4 :
1:fast work: because 2:far work: because also 3: to high to survive Because ppl r not indestructible
5 :
Conservation of energy: mgh = (1/2)mv^2 sqrt[2gh] = v = 157.77 m/s Plug this into the range equation and solve for the distance. Then use the kinematics equation and time = 0.1 to solve for the acceleration of the car on impact, with the acceleration, F=ma where m is the mass of the car.
6 :
You would need to know the angle of the mountain.
7 :
ha! nice try! trick question if i ever saw one. so much info missing, a)= what is the angle of the car?also, does the weight of the 800kg car reflect also the weight of the passengers? b)=what is the weight distribution? the angle of the fall? if it were front heavy, it would fall shorter, if it were back heavy, further away. is there any wind resistance?? again, what about the weight of the passengers?? and c)= what is the weight of the passengers? the impact resistance of the ground? of the car? is it nose diving or landing on the tires (shocks and rubber absorb alot of the impact)? are the passengers wearing seat belts (if so, what is their resistance)? these are just some of my concerns that lead me to conclude that this is a trick question.... nice try though... :-)
8 :
Thanks for such a good question!!... this re-kindled my rusted physics aptitude after a span of almost 7 years!! coming to the solution...., I have made quite a few assumptions, which I think are valid due to their details unavailable in the question! Assumptions: 1. The mountain has a 45degree straight frictionless slope. 2. Weight of the passenger can either be neglected or be assumed. I have chosen to 'neglect' the passenger's mass. Approach: I) To calculate the velocity, time & acc. components 1. Calculate the distance from the top of the mountain to it's base using the formula: sin45 = 1270 (Ht.)/ (Slope length) The slope lenght will come to: 1796.05 Mts 2. Calculate the force imparted by the car during acceleration of decscent from rest. (this is reqd. to calculate the impact force when the car lands on the ramp at the base!) F=5549.37 N (consider the sine component of 'g' - gravity for slope) 3. Calculate the time taken for the car to reach the slope with uniform acceleration from 'rest' using: S=ut+1/2gt2 t=22.75 secs is the time taken by the car to hit the ramp at the bottom. 4. Now, calculate the vel. at the ramp when car hits the bottom using v2=u2+2as. V=157.89 m/s. II) To calculte the impact force: Q=Fxt' (t'=0.1 sec) Q=554.94 N-s is the force of impact or the "moment of impact ". III) For calculation projectiles: 1. Vo=157.89 m/s will be initial vel. at the time of projectile calculate the Vx and Vy (Vel. components across X and Y axis) Use Vx=VoCos30 and etc... Vx= 137.73 m/s Vy=78.945 m/s 2. Time to attain max. hieght during projectile: Th=(Vy - Vo)/ay = (157.89-78.945)/9.81 Th=8.05 secs 3. Horizontal dist. traversed by the car: Sh=Vx X th = 136.78x8.05x2 Sh= 2201.35 Mts. Am i right?? :)) regards, Vinay
a) an 800kg car is at the top of Mount wellington (at a height of 1270m). if the car were allowed to role down the mountain without using any brakes, how fast would the car be travelling when it reaches sea level? Assume that there is no friction. b) after reaching sea level the car hits a ramp that sends it into the air at an angle of 30 degrees. how far would the car fly before hitting the ground? c) if the impact of the car and ground takes 0.1 second, what would be the force on the passengers in the car? 10 points for whoever can ive the best answer and show their working out...Good luck!!
Physics - 8 Answers
Random Answers, Critics, Comments, Opinions :
1 :
whoa blew my mind, and i took this last year
2 :
What angle is the car travelling down the mountain?
3 :
a. The weight of the car is irrelevant. The potential energy at the top of the mountain equals the kinetic energy at the bottom. This will let you solve for the velocity. b. Assume that the velocity does not change while passing the ramp. Resolve the velocity into horizontal and vertical components. Noting that at the top of its arc the vertical velocity is zero, determine the distance that it must fall to re-gain the vertical velocity that it had originally. From this, compute the time, and double that since the car goes both up and down. Use this with the horizontal velocity to get the distance. c. Use the velocity from part a for this. a = dv/dt, and v and t are known.
4 :
1:fast work: because 2:far work: because also 3: to high to survive Because ppl r not indestructible
5 :
Conservation of energy: mgh = (1/2)mv^2 sqrt[2gh] = v = 157.77 m/s Plug this into the range equation and solve for the distance. Then use the kinematics equation and time = 0.1 to solve for the acceleration of the car on impact, with the acceleration, F=ma where m is the mass of the car.
6 :
You would need to know the angle of the mountain.
7 :
ha! nice try! trick question if i ever saw one. so much info missing, a)= what is the angle of the car?also, does the weight of the 800kg car reflect also the weight of the passengers? b)=what is the weight distribution? the angle of the fall? if it were front heavy, it would fall shorter, if it were back heavy, further away. is there any wind resistance?? again, what about the weight of the passengers?? and c)= what is the weight of the passengers? the impact resistance of the ground? of the car? is it nose diving or landing on the tires (shocks and rubber absorb alot of the impact)? are the passengers wearing seat belts (if so, what is their resistance)? these are just some of my concerns that lead me to conclude that this is a trick question.... nice try though... :-)
8 :
Thanks for such a good question!!... this re-kindled my rusted physics aptitude after a span of almost 7 years!! coming to the solution...., I have made quite a few assumptions, which I think are valid due to their details unavailable in the question! Assumptions: 1. The mountain has a 45degree straight frictionless slope. 2. Weight of the passenger can either be neglected or be assumed. I have chosen to 'neglect' the passenger's mass. Approach: I) To calculate the velocity, time & acc. components 1. Calculate the distance from the top of the mountain to it's base using the formula: sin45 = 1270 (Ht.)/ (Slope length) The slope lenght will come to: 1796.05 Mts 2. Calculate the force imparted by the car during acceleration of decscent from rest. (this is reqd. to calculate the impact force when the car lands on the ramp at the base!) F=5549.37 N (consider the sine component of 'g' - gravity for slope) 3. Calculate the time taken for the car to reach the slope with uniform acceleration from 'rest' using: S=ut+1/2gt2 t=22.75 secs is the time taken by the car to hit the ramp at the bottom. 4. Now, calculate the vel. at the ramp when car hits the bottom using v2=u2+2as. V=157.89 m/s. II) To calculte the impact force: Q=Fxt' (t'=0.1 sec) Q=554.94 N-s is the force of impact or the "moment of impact ". III) For calculation projectiles: 1. Vo=157.89 m/s will be initial vel. at the time of projectile calculate the Vx and Vy (Vel. components across X and Y axis) Use Vx=VoCos30 and etc... Vx= 137.73 m/s Vy=78.945 m/s 2. Time to attain max. hieght during projectile: Th=(Vy - Vo)/ay = (157.89-78.945)/9.81 Th=8.05 secs 3. Horizontal dist. traversed by the car: Sh=Vx X th = 136.78x8.05x2 Sh= 2201.35 Mts. Am i right?? :)) regards, Vinay
Wednesday, December 7, 2011
Math Problem
Math Problem?
In the Wellington Ballroom Dancing Championship Suzanne and Jonny are competing in the free dance section. The scores for their performance are 7, 8, 6, 8, 7, 8, 7. Calculate the mean score after the lowest and highest scores are removed. Can you please show working also so I can see how you got the answer. Thanks so much!!
Homework Help - 1 Answers
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1 :
6, 7, 7, 7,8,8,8 low is 6, high is 8 7,7,7,8,8 add the numbers, divide by the # of numbers (7+7+7+8+8)/5=?????
In the Wellington Ballroom Dancing Championship Suzanne and Jonny are competing in the free dance section. The scores for their performance are 7, 8, 6, 8, 7, 8, 7. Calculate the mean score after the lowest and highest scores are removed. Can you please show working also so I can see how you got the answer. Thanks so much!!
Homework Help - 1 Answers
Random Answers, Critics, Comments, Opinions :
1 :
6, 7, 7, 7,8,8,8 low is 6, high is 8 7,7,7,8,8 add the numbers, divide by the # of numbers (7+7+7+8+8)/5=?????
Thursday, December 1, 2011
What is the most saddest news story that you've read lately
What is the most saddest news story that you've read lately?
This news story about a police dog here in New Zealand, called Blade who survived Cancer, A pitchfork attack and more than 1000 criminals who died in his police partner's arms of old age recently, made me quite emotional actually, since it reminded me of the fact that my dog Luey had to be put down last year because of a disease, which made him lose muscle tone and his hair. He was fine though, and it was mostly old age which was the reason of why he had to be put down and not the disease thank goodness. Anyway here's the news story source link with a photo of him and his handler, when he was alive: http://www.stuff.co.nz/national/4366742/Salute-to-a-brave-dog-called-Blade And the story to read here below: Blade – the police dog who beat cancer, a pitchfork attack and more than 1000 criminals – has died in his owner's arms. Since 2007 Blade has been retired, living as a family pet with his handler, Senior Constable Matt Fage from the Wellington police dog section. Mr Fage said 12-year-old Blade died in his arms early on Tuesday morning. The death, from old age, was "devastating". "He was a super-loved working partner. He gave 100 per cent at everything and just kept on going." Blade caught more than 1000 criminals, found a dozen missing people and survived being stabbed with a pitchfork and hit with a machete in his seven-year career. Mr Fage said Blade almost certainly saved three lives. In 2003 he and another officer were cornered by a man with a pitchfork but Blade took the blow, surviving because he got hit in his harness. He got a bravery award. A couple of years later he tracked down a fleeing offender in the Hutt River. If the man had not been found he would probably have drowned, Mr Fage said. He also helped disarm a man in Porirua holding a knife to a six-year-old's throat, earning a bravery award for the second time. Mr Fage said Blade would be remembered as a "proud dog". Since retiring in 2007, he had been treated successfully for cancer. He got along with Mr Fage's new police dog – Xoset, or "X". "Every day [Blade] still would go out by the dog van – every morning wanting to go. He made as good a family pet as a police dog." Blade continued to provide a public service after he retired, visiting children at Wellington Hospital. "He was just so tolerant." Oh heck, there's alot of sad news story lately eh? :'(
Polls & Surveys - 9 Answers
Random Answers, Critics, Comments, Opinions :
1 :
A man killed a mother, her son, and her friend, put their bodies in a tree, and took the mother's 15 year old daughter, chained her up in a basement and beat and raped her. She lived, but her brother and mother are dead..
2 :
Darrel White stood before a judge in a faded black-and-white jail uniform. His hands were cuffed behind his back. His face was visibly pained. Attorney Herbert Freeman patted the Vietnam vet on the back as the allegations that White, 65, was responsible for the death of his wife of 34 years by failing to care for her were read in court on Friday. “I did the best I could under the conditions,†White told Hamilton County Common Pleas Court Judge Ethna Cooper. White waived his right to a trial and pleaded guilty to charges of reckless homicide and the failure to provide care to an impaired person. White’s wife left Drake Hospital in 2003 when she and her family were told the hospital had done all it could for the woman with debilitating arthritis. By then, the 51-year-old woman was bedridden after losing her ability to walk five years earlier. What happened over the next seven years in the home Jorene White shared with her husband and two adult children, one of who court documents state is an alcoholic, is a case of an overburdened man, both Darrel White’s attorney and prosecutors contend. “I think this guy got overwhelmed and gradually stopped (providing) the proper care,†said Hamilton County Assistant Prosecutor Mark Piepmeier. Emergency workers had to put on protective clothing when they went into the Whites' filthy home on July 23 and found Jorene White, 57, dead on the floor. Her legs and torso were covered in bedsores. The bandages covering her body were soiled with excrement. Maggots had been feeding on her body, both in life and in death, prosecutors said. Her bed was covered in the fluids from her body, which had been wasting away over time. The Hamilton County Coroner’s office ruled Jorene White’s death a homicide. The cause of death was sepsis.
3 :
Poor doggie. =( It wasn't a story in the newspaper, but a story on the Oprah show. Three children were killed in a van because a semi hit them in the back. It wasn't the driver's fault because he couldn't slow down. Miraculously, about a year to the date of their death, the mother and father had a set of triplets, two girls and a boy, just like the children who had died. I thought it was amazing. http://www.oprah.com/oprahshow/Coble-Family-Miracle
4 :
so sorry to read this =( a tragedy to say the least
5 :
This guy in New Jersey sold his 7 year old stepsister to a group of guys. She was beaten and raped by seven men. That made me cry.
6 :
A woman's sister was killed by a train and she saw the whole thing. They were taking the train to go back home when a woman pushed the woman's sister and then she got hit by the train and was killed.
7 :
That is a sad story. A vet home from the Iraq was killed in a random drive by shooting. Police said he was just in the wrong place at the wrong time
8 :
Yeah...the recent news where I am is about a drunk driver that hit a car that killed 3 teenagers, aged 15 to 18. The driver was an illegal alien that survived the accident because he was drunk. As far as your story...it is a sad one, but the dog served his community well. I like the part where it says "helped disarm a man in Porirua". I had to laugh a little because at first I wondered "which arm"....hehehe....
9 :
About a boy who won the pride of Britain award for helping to raise money and help other charities he lost his sight to cancer i felt very humbled
This news story about a police dog here in New Zealand, called Blade who survived Cancer, A pitchfork attack and more than 1000 criminals who died in his police partner's arms of old age recently, made me quite emotional actually, since it reminded me of the fact that my dog Luey had to be put down last year because of a disease, which made him lose muscle tone and his hair. He was fine though, and it was mostly old age which was the reason of why he had to be put down and not the disease thank goodness. Anyway here's the news story source link with a photo of him and his handler, when he was alive: http://www.stuff.co.nz/national/4366742/Salute-to-a-brave-dog-called-Blade And the story to read here below: Blade – the police dog who beat cancer, a pitchfork attack and more than 1000 criminals – has died in his owner's arms. Since 2007 Blade has been retired, living as a family pet with his handler, Senior Constable Matt Fage from the Wellington police dog section. Mr Fage said 12-year-old Blade died in his arms early on Tuesday morning. The death, from old age, was "devastating". "He was a super-loved working partner. He gave 100 per cent at everything and just kept on going." Blade caught more than 1000 criminals, found a dozen missing people and survived being stabbed with a pitchfork and hit with a machete in his seven-year career. Mr Fage said Blade almost certainly saved three lives. In 2003 he and another officer were cornered by a man with a pitchfork but Blade took the blow, surviving because he got hit in his harness. He got a bravery award. A couple of years later he tracked down a fleeing offender in the Hutt River. If the man had not been found he would probably have drowned, Mr Fage said. He also helped disarm a man in Porirua holding a knife to a six-year-old's throat, earning a bravery award for the second time. Mr Fage said Blade would be remembered as a "proud dog". Since retiring in 2007, he had been treated successfully for cancer. He got along with Mr Fage's new police dog – Xoset, or "X". "Every day [Blade] still would go out by the dog van – every morning wanting to go. He made as good a family pet as a police dog." Blade continued to provide a public service after he retired, visiting children at Wellington Hospital. "He was just so tolerant." Oh heck, there's alot of sad news story lately eh? :'(
Polls & Surveys - 9 Answers
Random Answers, Critics, Comments, Opinions :
1 :
A man killed a mother, her son, and her friend, put their bodies in a tree, and took the mother's 15 year old daughter, chained her up in a basement and beat and raped her. She lived, but her brother and mother are dead..
2 :
Darrel White stood before a judge in a faded black-and-white jail uniform. His hands were cuffed behind his back. His face was visibly pained. Attorney Herbert Freeman patted the Vietnam vet on the back as the allegations that White, 65, was responsible for the death of his wife of 34 years by failing to care for her were read in court on Friday. “I did the best I could under the conditions,†White told Hamilton County Common Pleas Court Judge Ethna Cooper. White waived his right to a trial and pleaded guilty to charges of reckless homicide and the failure to provide care to an impaired person. White’s wife left Drake Hospital in 2003 when she and her family were told the hospital had done all it could for the woman with debilitating arthritis. By then, the 51-year-old woman was bedridden after losing her ability to walk five years earlier. What happened over the next seven years in the home Jorene White shared with her husband and two adult children, one of who court documents state is an alcoholic, is a case of an overburdened man, both Darrel White’s attorney and prosecutors contend. “I think this guy got overwhelmed and gradually stopped (providing) the proper care,†said Hamilton County Assistant Prosecutor Mark Piepmeier. Emergency workers had to put on protective clothing when they went into the Whites' filthy home on July 23 and found Jorene White, 57, dead on the floor. Her legs and torso were covered in bedsores. The bandages covering her body were soiled with excrement. Maggots had been feeding on her body, both in life and in death, prosecutors said. Her bed was covered in the fluids from her body, which had been wasting away over time. The Hamilton County Coroner’s office ruled Jorene White’s death a homicide. The cause of death was sepsis.
3 :
Poor doggie. =( It wasn't a story in the newspaper, but a story on the Oprah show. Three children were killed in a van because a semi hit them in the back. It wasn't the driver's fault because he couldn't slow down. Miraculously, about a year to the date of their death, the mother and father had a set of triplets, two girls and a boy, just like the children who had died. I thought it was amazing. http://www.oprah.com/oprahshow/Coble-Family-Miracle
4 :
so sorry to read this =( a tragedy to say the least
5 :
This guy in New Jersey sold his 7 year old stepsister to a group of guys. She was beaten and raped by seven men. That made me cry.
6 :
A woman's sister was killed by a train and she saw the whole thing. They were taking the train to go back home when a woman pushed the woman's sister and then she got hit by the train and was killed.
7 :
That is a sad story. A vet home from the Iraq was killed in a random drive by shooting. Police said he was just in the wrong place at the wrong time
8 :
Yeah...the recent news where I am is about a drunk driver that hit a car that killed 3 teenagers, aged 15 to 18. The driver was an illegal alien that survived the accident because he was drunk. As far as your story...it is a sad one, but the dog served his community well. I like the part where it says "helped disarm a man in Porirua". I had to laugh a little because at first I wondered "which arm"....hehehe....
9 :
About a boy who won the pride of Britain award for helping to raise money and help other charities he lost his sight to cancer i felt very humbled
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