Geoffrey is on location for a long shoot. he is worried that the battery power in his camera will not last. which source can he use to avoid losing total battery power? geoffrey can use (1. pistol grip, 2. an articulating grip, 3. a motorized grip) or (1. a power pack, 2. a ball head, 3. an electronic controller)

What is estimated time of arrival (eta)? a device that measures the acceleration (the rate of change of velocity) of an item and is used to track truck speeds or taxi cab speeds a gps technology adventure game that posts the longitude and latitude location for an item on the internet for users to find a north/south measurement of position the time of day of an expected arrival at a certain destination and is typically used for navigation applications