A motorcycle starts at rest and accelerates at 7 m/s2 for 2 seconds (Δt = 2). After 2 seconds, what is the motorcycle’s velocity in meters per second (m/s)?

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

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.

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of