Physics, 24.10.2019 23:43 gjaime1307
Two trains are moving at 30 m/s in opposite directions on the same track. the engineers see simultaneously that they are on a collision course and apply the brakes when they are 1000 m apart. assuming both trains have the same acceleration, what must this acceleration be if the trains are to stop just short of colliding?
Answers: 3
Physics, 22.06.2019 10:30, johnthienann58
The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g
Answers: 1
Physics, 22.06.2019 14:30, uwunuzzles
Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current
Answers: 1
Physics, 22.06.2019 14:40, sherlinejules1
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
Answers: 2
Physics, 22.06.2019 16:30, makenahbriana
In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.
Answers: 3
Two trains are moving at 30 m/s in opposite directions on the same track. the engineers see simultan...
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