I appreciate that and thank you for it but just to make that observation more clear to me do you know of an example where coulombs constant has been called A. One website had something down like s-A for it but it does not mean anything to me at this time?
I have equation that i have to make A the subject of so the equation is F = A Q1 Q2/r2 this i have done and it becomes A = F x r2/Q1 Q2. the SI units work out as coulombs constant, however on all the web sites i have checked coulombs constant is given as K, even the equations are identical...
After sitting here for nearly 6 hours now i have finally cottoned on to they way to do it, i probably will not be spot on with my thinking and equation not totally scientifically correct but using my initial equation and looking at the adjustments that you have all suggested and going on a...
now somewhere along the way I've had an answer around there and i cannot remember how so i'll have to scroll back through everything I've done cos the answer i got is well short of that?
My Answer for the breaking vehicle using this is 31.5m if you did it doing they way you would do it, is the answer the same if it is just concur yes or no i do not need to no your workings as i need to find this out for myself, if however i am correct then i am willing to drop the marks that...
the acceleration before he braked was constant so what i am saying is that because it is constant it is as if the energy is like then potential energy of the the diver on the top of the cliff there is no change until he breaks? So could i zero that speed (not use it in the the equation) In...
The reason believe i can use the equation is this
A diver who dives off the famous cliffs at Acapulco in Mexico hits the
water at about 25 m s −1 . Calculate the height of the cliff.
the diver has a potential energy of 9.8 m/s/s which equates to 2.68 m/s/s in the question the final speed...
i thank you for your replies the course is foundation level and there is now mention of kinematics, and it has not showed me how to just use m in formulas and that last thread just confused me even more. I'm OK in use of equations and my maths is not to bad but i must only work with the the...
A car drives along a dual carriageway at 96 km h−1. The driver sees a speed limit sign approaching and applies the brakes to decelerate to a speed of 48 km h−1. Given that the deceleration is 2.68 m s−2 find the distance over which the brakes are applied.
Formula I think to use is to...