Physics, 02.02.2021 23:50 snikergrace
Calculate the distance in meters a cyclist would travel in 7 hrs. at an average velocity of 12 km/hr the southwest
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Space-time metric ds2= -dt2+at2dx2+bt2dy2+ct2dz2 (a)how does the area of a rectangle with vertices at ( x=0, y=0, z=0 ), (1,0,0 ), ( 0,1,0 ) and (1,1,0 ) changes with time? (b) if a photon moving in the x direction starts from the origin at t=1, when does it reach x=l? (ds=0 for the trajectory of a photon.) (c) the proper time for a particle is defined by cd=ds. what is the proper time for a particle to move along the trajectory ( x(t)=t, y(t)=0, z(t)=0 ) from t=0 to 1 ? what is the condition on the parameter a so that the velocity of the particle never exceeds the speed of light ?
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Physics, 22.06.2019 14:40
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
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Calculate the distance in meters a cyclist would travel in 7 hrs. at an average velocity of 12 km/hr...
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