Question

the total energy of the lamp is 9 units. the lamp is turned on and converts all of the electrical energy into 7 units of radiant energy and a small amount of heat. how many units of heat energy are there? 2 units 1 unit 6 units 3 units

Explanation:

Step1: Identify total and radiant energy

Total energy = 9 units, Radiant energy = 7 units.

Step2: Calculate heat energy

Heat energy = Total energy - Radiant energy = $9 - 7$
$9 - 7 = 2$

Answer:

2 units