A ball is rolling with initial velocity 5 m/s east at the top of a table, and launched into the air. The height of the table is 0.8 m. What is the speed of ball before it strikes the floor?

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

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell