A30 ton rail car and a 90 ton rail car, initially at rest, are connected together with a giant but massless compressed springbetween them. when released, the 30 ton car is pushed away at aspeed of 4.0 m/s relative to the 90 ton car. what is the speed ofthe 30 ton car relative to the ground?
Answers: 3
Physics, 22.06.2019 12:00, Sariyahhall1
Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation
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Physics, 22.06.2019 15:30, pandapractice6834
Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work
Answers: 1
Physics, 22.06.2019 17:20, elkinsmarie88oyzd23
Select all the correct answers. which two statements are true? a moving magnetic field creates an electric field. a constant magnetic field creates an electric field. a constant electric field creates a magnetic field. a moving electric field creates a magnetic field. resetnext
Answers: 1
A30 ton rail car and a 90 ton rail car, initially at rest, are connected together with a giant but m...
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