The de Broglie wavelength is inversely proportional to the momentum of the particle
Indicate whether the statement is true or false
TRUE
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What is the acceleration of gravity of Earth?
A) 9.8 m/s2 downward B) 9.8 m/s downward C) 9.8 km/s2 downward D) 9.8 m2/s downward E) 9.8 km/s downward
When a moving spaceship emits regularly-spaced flashes of light, how frequently you see the flashes depends on the ship
A) approaching you. B) receding from you. C) either of these D) none of these
By definition, the universe consists of
a. all energy only. b. all space only. c. all matter only. d. all of the above.
A Nichrome wire is used as a heating element in a toaster. From the moment the toaster is first turned on to the moment the wire reaches it maximum temperature, the current in the wire drops by 20% from its initial value
What is the temperature change in the wire? The temperature coefficient for Nichrome is ? = 0.0004 (°C)-1. A) 200°C B) 400°C C) 500°C D) 100°C E) 300°C