1.)describe an experience where you encountered a buoyant force and tell what it felt like.
an...
Answers: 3
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 ?
Answers: 2
Physics, 22.06.2019 06:00
Explain earth's motion, using the terms "precession" and "rotation" in your answer.
Answers: 1
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
Physics, 22.06.2019 10:30
Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.
Answers: 3
English, 29.01.2020 23:51
World Languages, 29.01.2020 23:51
Mathematics, 29.01.2020 23:51
Health, 29.01.2020 23:51
Biology, 29.01.2020 23:51
Social Studies, 29.01.2020 23:51
History, 29.01.2020 23:51
Chemistry, 29.01.2020 23:51
Mathematics, 29.01.2020 23:51
English, 29.01.2020 23:51
English, 29.01.2020 23:51
History, 29.01.2020 23:51