Globular clusters are typically much older than open clusters
Indicate whether the statement is true or false
TRUE
Physics & Space Science
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RMS and Peak Quantities: If the maximum voltage of an ac signal is 8.0 V, what is the rms value of this voltage?
A. 2.8 V B. 5.7 V C. 6.2 V D. 4.0 V E. 16.0 V
Physics & Space Science
The temperature of melting ice is
A) 0°C. B) 32°F. C) both of these
Physics & Space Science
The water flowing over Niagara Falls drops a distance of 50 m
If all the gravitational potential energy of the system water-Earth is converted to thermal energy, by what temperature does the water rise? The specific heat of water is 4186 J/kg ? K. A) 0.10 C° B) 0.12 C° C) 0.37 C° D) 0.42 C°
Physics & Space Science
How far above the horizon is the Moon when its image reflected in calm water is completely polarized? (nwater = 1.333)
a. 53.12° b. 18.44° c. 22.20° d. 36.88°
Physics & Space Science