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All categories - 6 November 2006

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A balll of mass m=60 g is shot with speed vi=22 m/s into the barrel of a spring gun of mass M= 240 g initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. Assume that the increase in the thermal energy due to friction between the ball and the barrel is negligible.

(A) What is the speed of the spring gun after the ball stops in the barrel?

(B) What fraction of the initial kinetic energy of the ball is stored in the spring?

The answers are:

(A) 2.35 x 10^3 J

(B) 352 J

But I don't know how to get these answers, please help me!

2006-11-06 14:06:00 · 1 answers · asked by gods1princesschanel 1 in Physics

1

who watches it
every thursday?

2006-11-06 14:06:00 · 10 answers · asked by xdfsdf 1 in Television

your best feature or the one thing you get the most compliments on?

2006-11-06 14:05:59 · 22 answers · asked by Anonymous in Polls & Surveys

2006-11-06 14:05:56 · 3 answers · asked by Anonymous in Mathematics

Proposition 83: Sex Offenders. Sexually Violent Predators. Punishment, Residence Restrictions and Monitoring. Initiative Statute

Proposition 84: Water Quality, Safety and Supply. Flood Control. Natural Resource Protection. Park Improvements. Bonds. Initiative Statute

Proposition 85: Waiting Period and Parental Notification Before Termination of Minor’s Pregnancy

Proposition 86: Tax on Cigarettes. Initiative Constitutional Amendment and Statute

Proposition 87: Alternative Energy. Research, Production, Incentives. Tax on CA Oil Producers

Proposition 88: Education Funding. Real Property Parcel Tax. Initiative Constitutional Amendment and Statute.

Proposition 89: Political Campaigns. Public Financing. Corporate Tax Increase. Campaign Contribution and Expenditure Limits. Initiative Statute.

Proposition 90: Government Acquisition. Regulation of Private Property. Initiative Constitutional Amendment.

2006-11-06 14:05:52 · 9 answers · asked by punkymunky 2 in Elections

I've always wanted to go to New Zealand, and i was wondering what some simple words are in the Maori language.

2006-11-06 14:05:41 · 2 answers · asked by purecajun 1 in Languages

what do you have to do to get dual citizenship from USA to Mexico.? I am a U.S. citizen but grandparents are from Mexico.

2006-11-06 14:05:35 · 5 answers · asked by rufus 1 in Immigration

What sort of employment would best suit a person with this range of IQ?

2006-11-06 14:05:30 · 5 answers · asked by Rita K 1 in Standards & Testing

What qualities decipher the difference between liking sex and being addicted to sex (nymphomaniac)? How would a person know if they are a nympho/addict ? Signs, etc.

2006-11-06 14:05:25 · 18 answers · asked by itsjustme_erin 3 in Psychology

im not trying to be rude! im just wondering becuase i noticed that black peopel smell differnt. and liek my cousin is a qaurter black and her family has a particular smell, i used to think it was fabric softener until she stayed over my house and borrowed clothes! okay so i was wonderign if white peopel have a particualr smell but i just dotn notice it cause im white.

2006-11-06 14:05:23 · 29 answers · asked by Anonymous in Etiquette

my friend had sex with her boyfriend using withdrawal. then, she fears she's prego. she wakes up early (5am) to get to school but wants to sleep for a few minutes. she doesn't vomit in her first week. she usually gets fat easily even before her first sexual intercourse, and her stomach decreases a bit when she doesn't eat too much. she doesn't urinate frequently. her bowel movement hasn't changed. when she came back home from school, she had a mild headache since it was too hot outside.


so, is she prego or what?

2006-11-06 14:05:23 · 14 answers · asked by coco banana 1 in Pregnancy

This is more of a rant than a question, but I'm willing to entertain rational arguments. Why do Flash web designers see fit to create their own scrollbars that don't function the same as normal scrollbars, in that A) they have no arrows to scroll a line at a time; and B) don't scroll up or down a page when you click the empty space below the bar, forcing you to drag the bar as the only possible way to scroll the text? (See http://www.cit.cmu.edu) WHAT ARE THESE PSYCHO PEOPLE THINKING? What in creation would possess them to do this? Are there not existing scrollbar widgets that function properly that they can use? Is this a Flash defect of some sort? Is this some perverse Web fashion trend -- the cyberspace equivalent of neckties or high heels? Who is responsible for this and can I string them up until all the blood rushes to their heads and makes them dizzy and sick?

Go ahead and ask me to tell you how I really feel!

2006-11-06 14:05:16 · 1 answers · asked by ? 4 in Programming & Design

2006-11-06 14:05:14 · 29 answers · asked by Arts 6 in Polls & Surveys

I dont like the end of movie when it implies Ninny and Idgie are the same person. I like book better since they are diff people. Now I LOVE the movie.
Some people say are the same person. Some say different. So what do think;

1) Ninny and Idgie are not same person
2) They are same person

2006-11-06 14:05:09 · 2 answers · asked by YoWhoIsThisMan 3 in Movies

Liberals really don't get it, do they?

2006-11-06 14:05:05 · 14 answers · asked by Anonymous in Politics

it is dangerous to interpret the Bible alone, rigtht? so how can you honestly say that your interpretation of what's inside the Bible is the right interpretation?

2006-11-06 14:05:05 · 36 answers · asked by Anonymous in Religion & Spirituality

This is a pretty weird problem, I think. My husband is loving and kind and a great husband, but he doesn't want sex as much as I do. I'm not ugly or fat and I do a lot to try and turn him on and we do have sex, but I initiate it. I want him to do this. It makes me feel so unsexy! I know he has been stressed at work and he used to work out more often. I know these are playing factors, but what can I do from my end? He claims nothing is wrong. Oh, and when we do have sex he comes in like three minutes. HELP ME!!!

2006-11-06 14:04:56 · 26 answers · asked by Lynn Q 1 in Marriage & Divorce

I want to buy a non flip-phone from Verizon, are there any good ones besides the Chocolate. I don't really like the Chocolate, so are there any??

2006-11-06 14:04:55 · 6 answers · asked by Anonymous in Cell Phones & Plans

that it is a mans right to say how u vote tomorrow and if u can't do as told then maybe women shoudn't have the right to vote...?

2006-11-06 14:04:53 · 13 answers · asked by Anonymous in Gender Studies

A baseball thrown in the air at an angle of 0.5% below the horizontal at 90 miles per hour towards home plate which is 60 feet from the pitching rubber. the pitcher releases the ball 5 feet above the ground and 4 feet in front of the pitching rubber. recall: 1 mile=5280 ft

a) write the parametric equations for the path of the ball

b) how many seconds it takes to cross home plate

c)Give the height of the pitch when it crosses home plate

2006-11-06 14:04:50 · 1 answers · asked by Anonymous in Homework Help

A very ugly woman walks into Wal-Mart with her two kids. The Wal-Mart greeter asks, "Are they twins?"

The ugly woman says, "No, he's 9 and she's 7. Why? Do you think they really look alike?"

"No," replies the greeter. "I just can’t believe you got laid twice."

2006-11-06 14:04:43 · 12 answers · asked by Anonymous in Jokes & Riddles

I used to be a member of an Evangelical free church and seems to me that group did not fit with the definition people here on this site often seem to place on evangelicals. Was it just that church or am I right in thinking there is a fairly large differance.

2006-11-06 14:04:37 · 8 answers · asked by icheeknows 5 in Religion & Spirituality

last month my period was 7 days late and shorter....now this month i'am 9 days late ....by breats hurt and i'am hungery all the time and i use the restroom often

2006-11-06 14:04:35 · 14 answers · asked by mz415tiny 1 in Other - Pregnancy & Parenting

We have been trying to get pregnant for several months now. I am 20 years old. I have an average 28 day cycle and I had my period on Oct. 21st. I know that I just ovulated a few days ago and we had sex that whole week. I usually get really sore breasts for a few days before my period. Right now my breasts are beginning to get really sore. This is strange because I shouldnt start my period for another couple of weeks. I know that sore breasts are a sign of pregnancy but is it too early? I am not stressing about this I just want to know if it is or not! Thank you!!!

2006-11-06 14:04:34 · 2 answers · asked by angel l 3 in Trying to Conceive

hi...i am in dire need of a subject to interview for my sociology class assignment...

would anyone (18 or over who is NOT black) be willing to be interviewed/surveyed by email or im? it will be somewhat personal but anonymous...thanks bunches to anyone who can help me...

SERIOUS answers only PLEASE!

2006-11-06 14:04:21 · 8 answers · asked by person 5 in Other - Society & Culture

I need a few good jokes again! I rate all my answers! Please do the same!?
Id appreciate if you rated my question and others jokes..I need to find an awesome one. Please have some manors, I WILL rate every answer according to how I feel about them...Thumbs down if you dont give me what I need and answer anyway...No thumbs if I dont like the joke...Definit thumbs up if I like or love it! The best will get my over all choice, I use your opinion (thumbs) to deside! Thank you!!!
I have a few other open questions like this, I WILL go back and rate for the rest of the evening...On my first question about jokes, there is a joke about the CIA, I still cant handle reading it, it was too funny..would love it if you would take a peak at it, it will make your day women! Dont worry guys, you will like it too! Thank you, oh, take your time, I need gooood jokes! TYTY!

2006-11-06 14:04:14 · 10 answers · asked by Stacie 2 in Jokes & Riddles

2006-11-06 14:04:07 · 5 answers · asked by Anonymous in Hockey

Okay the first thing I say when I tell people i have liek a big forhead, they say bangs. But i have bangs! annd they are getting so odl cause i have pretty much had them since i was born. i also have a round/square face soo straight across bangs are very unflattering. I mean, i'd get side bangs but my forhead sticks out, its not really high, just round. i guess all there is is to get side bangs. i just really need helpppp!!!!

2006-11-06 14:04:05 · 17 answers · asked by xbeepbeeplovex 2 in Hair

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