All heavy elements are made during supernova events
Indicate whether the statement is true or false
FALSE
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A 120 V-rms voltage is applied across a 6.0-?F capacitor and a 100-? resistor. If the frequency of the generator is 60 Hz, what is the rms value of the current in the circuit?
A) 0.26 A B) 0.36 A C) 0.46 A D) 0.56 A E) 0.76 A
A person's face is 30 cm in front of a concave spherical shaving mirror. If the image is an erect image that is 1.5 times as large as the object, what is the focal length mirror?
A) 20 cm B) 50 cm C) 70 cm D) 90 cm
If a wave from one slit of a Young's double slit experiment arrives at a point on the screen one-half wavelength behind the wave from the other slit, which is observed at that point?
A) bright fringe B) dark fringe C) gray fringe D) multi-colored fringe
An egg rests at the bottom of a bowl filled with water. When salt is slowly added to the water the egg rises and floats, from which we conclude
A) salt water is denser than fresh water. B) salt water is denser than an egg. C) both of these D) neither of these