![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
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
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:40
Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:00
Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system
Answers: 1
You know the right answer?
1 2.4.2 Test (CST): Energy
Question 6 of 20
Which two properties of an object are directly re...
Which two properties of an object are directly re...
Questions
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 17.11.2020 08:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.11.2020 08:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2020 08:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.11.2020 08:50
![question](/tpl/images/cats/mat.png)