A 2-kg mass hangs above a table on a 1-m string. The mass just clears the table. Use the idea of conservation of energy to describe how the pendulum can be used to move a 1-kg book across the table.

Which branches of natural science include the study of an organism that lived 10 million years ago

How can waves travel through ground?

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc