The coordinates of two spacetime events are given by (ct1, x1) = (2,5) and (ct2, 22) = (3, 3) in an inertial reference frame k. (a) calculate the squared spacetime interval between these events. is their spacetime separation spacelike or timelike? (b) transform the co-ordinates of this pair of events to a new reference frame, k' moving relative to the one used in (a) with a constant speed u = -2 x 108m/s in the ection. explicitly show that the squared spacetime interval between the events is the same in the new reference frame. (c) compare the time ordering of events in the two reference frames - you should find that the ordering has changed. in general such a change of ordering would lead to causal paradoxes, for example: the girl calls her dog, the dog obeys; versus, the dog obeys, the girl calls her dog. explain (with the aid of a spacetime diagram) why this is not a problem in the case of the events analysed in this question.
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Physics, 21.06.2019 19:30, queenpaige2015
Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .
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Physics, 22.06.2019 00:20, alyvia05
Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.
Answers: 1
Physics, 22.06.2019 03:00, conceitedkayy1865
According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?
Answers: 1
The coordinates of two spacetime events are given by (ct1, x1) = (2,5) and (ct2, 22) = (3, 3) in an...
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