Science!!!

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28.75 m/s. (in Detroit)


In Florida: 23.5 m/s

(m[SUB]RAT[/SUB] = 0.350 kg from online source)


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I used the MOCTOPUS from the problem shown in the post and looked up the one for the rat. Blame the writers of the original quoted problem for any error.
 
notbob said:
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Click to expand...

First a series of questions need to be answered before this word problem can be properly responded to:

1) is the octopus frozen or thawed when it was thrown on the ice?
2) if frozen, is it assumed that the coefficients of friction are the same, and what is the coefficient?
3) if thawed, did the octopus have enough time to freeze to the ice? If not, what is the coefficient of friction for the octopus?
4) are we to assume that there is no energy loss when the puck impacts the octopus?
5) given the coefficient of friction(s) from question 2 & 3, are we finding the immediate velocity after impact?
6) if 5 is no, what distance of travel do the two objects need to go to before determining the velocity?
7) are we to assume that both the octopus and the puck are acting as points and not taking into account their respective surface areas?
8) (last question) was the a-hole Wings fan thrown out of the arena for his (presumably) antics?

If these questions are answered, then the question can be responded to properly.
 
daxx said:
First a series of questions need to be answered before this word problem can be properly responded to:

1) is the octopus frozen or thawed when it was thrown on the ice?
2) if frozen, is it assumed that the coefficients of friction are the same, and what is the coefficient?
3) if thawed, did the octopus have enough time to freeze to the ice? If not, what is the coefficient of friction for the octopus?
4) are we to assume that there is no energy loss when the puck impacts the octopus?
5) given the coefficient of friction(s) from question 2 & 3, are we finding the immediate velocity after impact?
6) if 5 is no, what distance of travel do the two objects need to go to before determining the velocity?
7) are we to assume that both the octopus and the puck are acting as points and not taking into account their respective surface areas?
8) (last question) was the a-hole Wings fan thrown out of the arena for his (presumably) antics?

If these questions are answered, then the question can be responded to properly.
Click to expand...

View attachment 5622
 
daxx said:
First a series of questions need to be answered before this word problem can be properly responded to:

1) is the octopus frozen or thawed when it was thrown on the ice?
2) if frozen, is it assumed that the coefficients of friction are the same, and what is the coefficient?
3) if thawed, did the octopus have enough time to freeze to the ice? If not, what is the coefficient of friction for the octopus?
4) are we to assume that there is no energy loss when the puck impacts the octopus?
5) given the coefficient of friction(s) from question 2 & 3, are we finding the immediate velocity after impact?
6) if 5 is no, what distance of travel do the two objects need to go to before determining the velocity?
7) are we to assume that both the octopus and the puck are acting as points and not taking into account their respective surface areas?
8) (last question) was the a-hole Wings fan thrown out of the arena for his (presumably) antics?

If these questions are answered, then the question can be responded to properly.
Click to expand...

Ahh... The upper division answer.

As for question #8 , I'm waiting for someone to throw out a Portuguese Man of War just to see how many times that pinhead who picks it up twirls it above his head.
 
Kings Provisional said:
I did not read the whole piece, will do do later, so perhaps this was mentioned...

I think part of the reason society is so judgemental over this is that in this day and age you hear about every bad incident involving a child due to the 24 hour news cycle and the internet. As the article pointed out violent crime has gone down since the 70's but since we get bombarded 24/7 with stories of crime, especially against kids, it seems that today is way more violent than back then. Back then you might only hear a local story of a crime against a kid or one that happened elsewhere if it was especially horrific. And if you did not watch the news that night, you perhaps missed the story and therefore were never aware of the incident, where today you can't avoid such a story unless you live in a cave.

And I have to admit, I am aware of this but I still don't let my girls walk to school alone even though it is only a couple block away. I know that it safer today than when me and my siblings walked to school but I still cannot let my kids do it, when I start to think about letting them walk by themselves some story pops up about some weirdo trying to grab a kid off the street. And even though that could have happened in Vermont it still affects me. I tell myself "It may a one in 5 million chance that something happens to a kid walking to school but knowing my luck I'll be the one in five million!"

So even though I logically am aware that they are safer now than I was as a kid, emotionally I just can't do it.

So sometimes our technological news era sucks.
Click to expand...

Hate to quote myself here but now I feel even more justified on my irrational position on this:

So yesterday I get home from work and ask my girls "So how was school?" as I usually do. My 5th grader responds with "It was a really scary day!" and my youngest agrees with 'Yeah, it was scary!"

So I ask what made it scary and the 5th grader tells me that while at lunch her and her pals were sitting at a lunch table near a fence at the edge of the school. Up walks, on the other side of the fence, what she describes as a "weird looking guy" who leers at them and asks "Hey where is.....?" and says the name of one her classmates who also happens to be the daughter of one of my Kings buddies. The girl is at the table but does not respond and none of the other girls point at her or let him know she is there. He then just stares at them. My daughter said he looked like a weirdo and "looked off". The guy then pulls out a large leather glove, described by my kid as the type of glove "that guys wear when hawks and eagles are gonna land on your arm". The kids are starting to freak when the principal make his way toward the table and calls out to the guy. The principal is in thirties and looks like he can take care of business. The weirdo runs off.

The principal calms the girls down and from what I can guess questions them about what happened without trying to alarm them. But my daughter knows what is up and tells me that cop cars cruised up and down the streets around the school for the rest of lunch looking for the guy. The police were around at the end of the school day. They did not find the guy.

So then the school an email to all the parents saying the the district and the police highly recommend that we don't allow our kids to walk to school alone until this is "resolved".

So I take all this in and think "Damn, I am one in five million on this!"

Edit: I just heard they caught the creep after school let out. And now they are not sure if he asked for the girl specifically: some kids say he did, other say he just said a first name that happens to be pretty common.
 
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