As an electron moves in the direction the electric field lines:. a. it is moving from low potential to high potential and gaining electric potential energy.
b. it is moving from low potential to high potential and losing electric potential energy.
c. it is moving from high potential to low potential and gaining electric potential energy.
d. it is moving from high potential to low potential and losing electric potential energy.
e. both its electric potential and electric potential energy remain constant.

The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ? t ? 8. (a) when is the position function decreasing? (round you

Which two objects have the greatest gravitational force acting between them

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.