Krinksy

Ok cool. Thanks for your help guys.

yeah but I think it might be different because it isn't falling straight down, it's kinda falling but getting caught on the track which makes it go at an angle. I don't really know.

I have a question. If a rollercoaster is going down a slope and I need to work out the gravitational potentail energy can I just use the formula GPE = Mass *gravity*height I know I can use that for when something is just falling but is it different when it's going down a slope? If so can you please tell me what formula i should use or how I can calculate the GPE? All replies are appreciated.

Ok so I have a chemistry cosmetics assignment and I have to analyse two ingredients in my shampoo. I picked Sodium Laureth Sulfate (a foaming agent) and Sodium Chloride ( a thickener) So I have a description of the properties it is used for eg. It is cheap effective foamer. But now I need to have an explanation for the presence of these properties (Based on the types of bonds, electronegativites etc.) I have no I dea about why they have these properties so if sokmeone could please give some info that would be great.