Can an asteroid also be a dwarf planet?
A) No; dwarf planets have different compositions from asteroids.
B) No; asteroids are too big to be considered "dwarfs."
C) Yes, if the asteroid is large enough for its gravity to have made it round.
D) Yes, all asteroids are considered to be dwarf planets.
C) Yes, if the asteroid is large enough for its gravity to have made it round.
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An astronaut has landed on an asteroid and conducts an experiment to determine the acceleration of gravity on that asteroid. He uses a simple pendulum that has a period of oscillation of 2
00 s on Earth and finds that on the asteroid the period is 11.3 s. What is the acceleration of gravity on that asteroid? A) 1.74 m/s2 B) 0.0544 m/s2 C) 0.307 m/s2 D) 5.51 m/s2 E) 1.66 m/s2
Doppler Effect: The sound from the whistle of a truck moving at 17.0 m/s toward a cliff reflects from the cliff and is heard by the driver of the truck. When it is parked at the side of the road, the whistle from the truck produces sound of frequency 2.267 kHz. As observed by the driver of the truck, what is the change in frequency the sound from the whistle due to the reflection? The speed of sound is 343 m/s.
A. 236 Hz B. 228 Hz C. 207 Hz D. 118 Hz E. 472 Hz
The refraction of light in a diamond is greater for
A) long-wavelength light. B) short-wavelength light. C) both refract the same
A photon is a boson
Indicate whether the statement is true or false