The Andromeda galaxy will eventually collide with the Milky Way
Indicate whether the statement is true or false
TRUE
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Two instruments produce a beat frequency of 5 Hz. If one has a frequency of 264 Hz, what could be the frequency of the other instrument?
A. 269 Hz B. 254 Hz C. 264 Hz D. 5 Hz E. 274 Hz
In the Drude model of electrical conduction, the current density is NOT directly proportional to
a. the average time interval between successive collisions. b. the number of charge carriers per unit volume. c. the square of the electron charge. d. the electric field present in the wire. e. the resistivity of the wire.
The area in the Sun's atmosphere located above the chromosphere (1,500-10,000 km) where the temperature rises dramatically is called the:
A) photosphere. B) corona. C) solar wind. D) transition zone. E) convection zone.
What is the CNO cycle?
A) the process by which helium is fused into carbon, nitrogen, and oxygen B) the process by which carbon is fused into nitrogen and oxygen C) the set of fusion reactions that have produced all the carbon, nitrogen, and oxygen in the universe D) a set of steps by which four hydrogen nuclei fuse into one helium nucleus