In the 1950s, an experimental train, which had a mass of 2.50x10^4 kg, was powered across a level track by a jet engine that produced a thrust of 5.00x10^5 n for a distance of 509m.
a. find the work done on the train
b. find the change in kinetic energy.
c. find the final kinetic energy of the train if it started from rest.
d. find the final speed of the train if there had been no fricion.
Answers: 1
Physics, 22.06.2019 04:10
An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?
Answers: 2
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
Physics, 22.06.2019 15:20
What component of earth’s atmosphere exists entirely as a result of photosynthesis?
Answers: 2
Physics, 22.06.2019 19:00
Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.
Answers: 1
In the 1950s, an experimental train, which had a mass of 2.50x10^4 kg, was powered across a level tr...
Mathematics, 01.03.2021 18:00
History, 01.03.2021 18:00
Advanced Placement (AP), 01.03.2021 18:00
Physics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Geography, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00
Mathematics, 01.03.2021 18:00