A box of mass 1kg is pulled on a horizontal plane of length 1m by a force of 8n then it is raised vertically to a height of 2m, the net work is ?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?