Recent content by MiniSmSm

well , thanks .. that`s really what I meant

I don`t understand ! the box moves at a constant speed so the net force would be F = 0 but what about friction ? wouldn`t be 0 ? I`m confused

Actually I haven`t :( how ?

I think it`s related to hook`s law ( F =-kx ) and Newton`s second law hope somebody help us to solve this

thank you this is what I wanted

ThanX for clarification :)

Red Light is hotter ! or blue light is hotter than red ? blue light has more energy than red light so how can red light be hotter than blue ?

No no .. I mean by using this formula F(x+h)-F(x) / h ( sorry I don`t know how to use tags :( ) how can I prove that the derivative of that function equals to its own !

:) Thanx tiny-tim I appreciate that .. but how could we say that is related to the color of wave ? please explain..

I don understand ! I mean as a power series

hi everybody In sound waves or EM waves .. What do we mean by saying 'wavelength' ! physically I mean , Is that related to the size of the photon for example ( In EM ) ? Help me to understand

Welcome Tiny-tim I use e^x or a^x

hi guys I need The proof from definition of the derivative for exponential and log Fn can somebody help me !