If the sum of the external forces exerted on an object is zero, then the sum of the external torques exerted on it must also be zero
A) True
B) False
B
Physics & Space Science
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Compared to a giant iceberg, a hot cup of coffee has
A) more thermal energy at higher temperature. B) less thermal energy at higher temperature. C) about the same thermal energy but at a higher temperature. D) none of the above
Physics & Space Science
The three quarks in any baryon must all have different
a. baryon number. b. color charge. c. electric charge. d. lepton number. e. spin.
Physics & Space Science
Other planetary systems are best detected by the Doppler shifts that change the pattern of the star's ______________
Fill in the blank(s) with correct word
Physics & Space Science
Generators that were used in the past to supply electricity in automobiles have been replaced by
A) batteries. B) armatures. C) dynamos. D) alternators. E) commutators.
Physics & Space Science