Sir Isaac Newton contest solutions 2007

AI Thread Summary
The discussion revolves around the search for solutions to the Sir Isaac Newton contest from 2007, as the available resources only provide solutions for 2008. Participants express frustration over the lack of access to the 2007 solutions, which are needed for a physics club working on those specific questions. One user mentions that solutions can be purchased from Waterloo for a small fee. The conversation also includes an invitation to join the physics club, which meets weekly. Overall, the thread highlights the difficulty in finding older contest solutions and the collaborative nature of the physics club.
Uncle6
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Sorry if I posted in the wrong place.

Does anyone know where to get the Sir Isaac Newton contest solutions 2007? The site has solutions for 2008, but not of previous years.

Thanks.
 
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You can buy it from Waterloo. (3-5$ per year I think) I don't know anyweb site that has the solutions. Why do you need it?
 
My physics club is doing the questions from the 2007 contest, but we don't have the solutions.

It's strange because they have solutions for the 2008 ones right now.
 
Uncle6 said:
My physics club is doing the questions from the 2007 contest, but we don't have the solutions.

It's strange because they have solutions for the 2008 ones right now.

They only show it for one year. 2008 was last years contest. Can I join your physics club??
 
Hrm.. I guess no one has a copy of it then.

Sure u can join. It's every tuesday at lunch in room 112.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
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