Trong hiện tượng nhiễu xạ qua một khe hẹp, điều kiện để tại một điểm trên màn cho vân tối là góc nhiễu xạ tương ứng tại điểm đó thỏa mãn

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

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic