If two lights produce the same amount of energy what would cause one lightbulb to look dimmer than the other

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

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