Which of the following statements is true? Dalton believed atoms were made mostly of empty space. Plasmas have a net negative charge. The number of protons in an element is always equal to the number of neutrons. Solids have a fixed mass, volume, and shape.

What statements accurately describe atoms

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

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