Alightbulb has an efficiency of 8.2%. how much light energy (not heat energy) is generated by the bulb every second if the bulb has a power of 21 w?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

In what direction does an applied force move an object

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?