The following two formulas are equivalent: D = m / V and V = m / D.
true or false...
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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, 21.06.2019 22:30
Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.
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Physics, 23.06.2019 14:00
What is the potential energy possessed by a rock of mass 4kg projected to a height of 2m (g=10m/s2)
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Physics, 23.06.2019 20:00
Asparrow cruising at 1.5m/s begins to accelerate at a constant .3m/s^2 for 3s. what was the change in velocity?
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Chemistry, 08.07.2019 11:00
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