![subject](/tpl/images/cats/fizika.png)
Physics, 25.04.2021 23:10 Suttyyyyyybear6056
An archer shoots an arrow straight up. The arrow leaves the bow with a speed of 98 m/s. How many seconds later will the arrow reach its highest point?
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
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)
Physics, 22.06.2019 09:00
A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
What was the first instrument to ever record an earthquake?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:40
If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false
Answers: 2
You know the right answer?
An archer shoots an arrow straight up. The arrow leaves the bow with a speed of 98 m/s. How many sec...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 02.01.2020 19:31
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 19:31
![question](/tpl/images/cats/en.png)
English, 02.01.2020 19:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 02.01.2020 19:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 02.01.2020 19:31
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 19:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 02.01.2020 19:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 02.01.2020 19:31
![question](/tpl/images/cats/geografiya.png)
Geography, 02.01.2020 19:31
![question](/tpl/images/cats/istoriya.png)
History, 02.01.2020 19:31
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 19:31
![question](/tpl/images/cats/mat.png)
Mathematics, 02.01.2020 19:31