If the net force on an object is in a negative direction, what will the direction of the resulting acceleration be?

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

Ineed the answer to question 1 , i’m desperate

In the first law of thermodynamics, triangle e=q-w, what does q stand for