What is Frames of reference: Definition and 110 Discussions

:confused: I am in desperate need of help with a certian physice question I am struggling on. here's the question: "A pilot is required to fly directly from london to rome, in 3.5hours. the displacement is 1400km [S 43degrees E]. a wind is blowing with a velocity of 75km/h [E]...

I have a few questions here, and I'm stuck/confused on some of them. Here they are: 1. The air speed of a small plane is 215 km/h.The wind is blowing at 57 km/h from the west. Determine the velocity of the plane relative to the ground if the pilot keeps the plane aimed in the direction [34...

i hope u can answer these ? for me please 1) how does einstein's special theory of relativity and inertial frames of reference explain and predict the behaviour of natural phenomena (weather)? 2)explain the conservation mass -energy as applied in special relativity? 3) what is the...

Hi, I've run into a relativistic kinematics question that I'm not sure how to approach. The question states: "A source and a detector are spaced a certain angle \phi apart on the edge of a rotating disk. The source emits radiation at frequency \omega in it's instantaneous rest frame. What...

hi, in the case of elastic collision of two balls in constant speeds, if we took the origin in the center of of one of the balls, so the speed of the origin ball will be always zero, and the second ball will has the speed of v befor the collision and -v after the collision. so how the...

i was just reading, and i saw this question, and i don't know how to explain it... how can you describe why when two things go at a velocity v, and one of them accelerates to 2v, the KE gain w/ respect to the Earth and the other object are different, but the work done is constant? i just...

i've just started studying these but unfortunatley I've been unable to get my hands on the textbook, and my lecturer is... not that great :frown: Could somebody explain what these are to me? I have little to no idea about them as of now... maybe a few sample questions too? That would be a...

I have learned that objects moving at high velocity experience time dilation, among other things, and that there is no ultimate frame of reference in the universe. If this is so...say two galaxies pass by each other at near the speed of light...in which one would time be moving slower? There's...

how do you determine if something is a proper inertial frame of reference? the Earth is but a car isnt? you can feel a car accelerate, even though you are in it, but you can't feel the Earth accelerate as it changes directions in its orbit.. is there a poitn after which you don't feel...

Hey everybody, this is my first post! :biggrin: I've always had a problem understanding why, if a space-explorer left on a ship, traveled at nearly the speed of light for a while, and then came back to earth, he might have only aged a few months whereas the people of Earth would have aged...