Desperately need ! what is a vector, how are vectors represented, and how do you combine vectors?

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

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

True or false graphs must include scales that increase by the same amount