Recent content by Joellll

okay guys I've been looking for ages and i just can't find anything that will help me with finding a distance that will be travel by a rubber band powered car. I've been playing around with kinetic energy= potential energy but i can't seem to get anywhere. Any help will be greatly appreciated...

U value is the inverse of R value which is a measurment of how well a material insulates

hey guys just a quick question Does anyone know the u value of jusy normal glass? Ive looked everywhere and I've got different answers on source says 5.4 and another says something like 1.08, 5.5 seems pretty high but i think id better find out for sure thanks for any reply's:)

Coronal holes are the darker spots when viewed on a x ray picture, I've been doing some reading and it says on many websites that coronal holes create CME but it doesn't say anything about coronal mass ejection and sunspots

Homework Statement Are coronal holes and sunspots the same things? Homework Equations The Attempt at a Solution