Acar travels 30.0 km to the south and then turns around and travels 20.0 km to the north in 1.5 hours time. what is the car's total displacement? what is the car's average velocity?

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Acompound machine is also called a machine. a. force b. simple c. complex d. directional