Green light emitted by excited mercury vapor corresponds to an energy transition in the mercury atom. A more energetic transition might emit
A) red light.
B) blue light.
C) white light.
D) any of these
Answer: B
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The radius of the Moon's orbit is about ____ times larger than the radius of Earth
a. 0.6 b. 6 c. 60 d. 600 e. 6000
An alpha particle (6.70 × 10-27 kg, 3.2 × 10-19 Coulomb) travels at 0.965c. What is its:
(a) rest energy (in eV)? (b) total energy (in eV)? (c) kinetic energy (in eV)?
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A 120-kg refrigerator, 2.00 m tall and 85.0 cm wide, has its center of mass at its geometrical center. You are attempting to slide it along the floor by pushing horizontally on the side of the refrigerator
The coefficient of static friction between the floor and the refrigerator is 0.300. Depending on where you push, the refrigerator may start to tip over before it starts to slide along the floor. What is the highest distance above the floor that you can push the refrigerator so that it won't tip before it begins to slide? A) 0.710 m B) 1.00 m C) 1.21 m D) 1.42 m E) 1.63 m