HELP Does anyone have the answers for:

Lesson 2: Final Exam

Physical Science A Unit 7: Cumulative Exam

Connexus

If you do please give them to me All 1-100

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.

The ability to make things happen is also called a. heat b. force c. matter d. energy