I am revising for the A-S Maths C1 paper in January. The answers in the textbook I am using apparently has some wrong answers, so I just need some help with the following 2 questions: Factorise...
If you are in a car travelling at 80 mph and you throw something into the air it and catch it again, why doesn't the object go hurtling through the front or rear windscreen if the car is travelling at...
With Christmas candles burning all around, I want to post 2 questions: 1. If you lit a candle in a totally wightless but air filled environment (eg a space casule), what shape would the flame...
I was taught at school that there is no such thing as centrifugal force - it is just an imaginary force used to make explanations simpler. eg washing in a spin dryer is not thrown outwards by...
Following on from the weight of the world questions then, is any new substance ever created or is it all just recycled molecules of other things? Has everything that is on earth now been here since...
the valency of an element is the number of electrons it must lose or gain before it has a full outer shell. In the periodic table the valency of the elements in group 1 is 1, group 2 is 2, group 3 is...
Okay a difficult one for you. I understand that there was a big bang and that's how all the matter in the universe was created. However, where did the actual vaccum of 'space' come from in the...
Having watched a few documentaries about the moon landing and the 'so called' evidence to prove that the american's faked it, ie: the waving flag and the identical rock layout at different locations...
