Recent content by rossverg

I didn't think of that. I think I will use tweezers/gloves when inspecting the screws. If I do fully submerge the screws in water, will they still corrode? I'm planning to conduct this experiment over a week but I'm not sure if the water would have enough dissolved oxygen to last (I'll...

Thanks for your help Astronuc. So my suggestion that I keep a pair of screws in separate air tight containers with a silica gel sachet would be best?

Hi everyone, I need to do an experiment at home that tests different environmetnal conditions that facilitate corrosion of stainless steel and mild steel screws. I have 20 screws (10 stainless and 10 mild steel screws). Each screw will be in a separate container. One pair of srews will have...

Yes, that is all correct

By the way just to clarify some details. They call the playing field "the oval" but it is actually just a normal rectangular playing field.

They provided a simple diagram: It is basically just a rectangle representing the field. The length of the rectangle is given as 91 metres. The left side of the rectangle (the western end) is our base line marked in 1 metre intervals. The right side of the rectangle (eastern end) is marked...

No unfortunately we are no given any other details apart from the lengths of each baseline and the distance from one baseline to the other. I was getting a bit confused as I thought you could use one of those distances to calculate the distance to the pole, but I went over my ideas and yes it...

We don't need to calulate the pole height. Just the distance from the baseline to the pole itself. I havent' worked out a formal method as yet (which is what I'm having problems with doing because of the parallax angle). But I know the following measurements (or I can work them out)... the...

:confused: Hi everyone. I have this assignment whereby I need to use the parallax method to calculate the distance to a pole from a base line on our school field. I am kind of confused as to how I can apply the parallax method to do this on our assessment day. We know that on one end...

Thanks Bob G so much for clearlying that up. I've got a much clearer picture of what this is all about now. Thanks DocAl for that link as well. :)

Adding & Subtracting Vectors And Relative Velocity Hey everyone, I am so confused with this it's not funny. This is my first time accessing a site like thisss, but I am desperate seeing as though it's school holidays atm where I am and I can't talk to my physics teacher for help. Anyhow, I hope...