A bubble having a diameter of 1.00 cm is released from the bottom of a swimming pool where the depth is 5.00 m. What will the diameter of the bubble be when it reaches the surface? The temperature of the water at the surface is 20.0°C, whereas it is 15.0°C at the bottom. (The density of water is 1.00 × 10^3 kg/m3.)
a. 1.05 cm
b. 1.15 cm
c. 1.45 cm
d. 1.65 cm
e. 1.35 cm
b
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Fill in the blank(s) with correct word
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a. interference b. diffraction c. its surfaces being half-silvered d. dispersion e. polarization
The filament of a lightbulb glows, while the connecting wires do not. This is because
A) the wires are made of a type of material that cannot heat up. B) the resistance is larger in the lightbulb than in the wires. C) the current is larger in the lightbulb than in the wires. D) the resistance is smaller in the lightbulb than in the wires. E) the current is smaller in the lightbulb than in the wires.
Galileo's telescopic discovery of moons orbiting Jupiter was important because it showed that
a. the universe could contain centers of motion other than Earth. b. Earth might move along an orbit and not leave the Moon behind. c. Jupiter was much more massive than Earth. d. the universe could contain centers of motion other than Earth, Earth might move along an orbit and not leave the Moon behind, and Jupiter was much more massive than Earth. e. the universe could contain centers of motion other than Earth and Earth might move along an orbit and not leave the Moon behind.