What does the symbol 'Mg' represent?​

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

Diamond will scratch quartz. true or false

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving