Physics, 02.11.2020 17:20 ethanmel21
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 65.5-gram mass is attached at the 21.0-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance. What is the mass of the meter stick
Answers: 1
Physics, 21.06.2019 17:10
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 11:00
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Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
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A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 65.5-gram mas...
Mathematics, 01.04.2020 15:51
Physics, 01.04.2020 15:51
Mathematics, 01.04.2020 15:52
Mathematics, 01.04.2020 15:52
Mathematics, 01.04.2020 15:52
Mathematics, 01.04.2020 15:52