A wave is moving toward shore with a velocity of 4 m/s. If its period is 0.4 s, what is its wavelength?

The density of a liquid could be found by using

Why do electron microscopes have higher resolving power than light microscopes?

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