Which one is right??

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Ascientific blank must be testable and capable of being proven false?

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?