When water boils, its temperature increases
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following magnetic materials has domains?
A. paramagnetic B. diamagnetic C. solenoidic D. amperic E. ferromagnetic
Which of the following statements is FALSE?
A) In our universe, at earlier times, everything was closer together. B) The universe is expanding. C) For an observer located in a galaxy all other distant galaxies would appear to move away from his. D) The universe looks the same in all directions; i.e. it is homogeneous and isotropic. E) We are at the center of the universe.
Two plane mirrors make an angle of with each other. A light ray enters the system and is reflected once off of each mirror. Through what angle is the ray turned?
A) 60° B) 90° C) 120° D) 150°
In order to calculate the fraction of the total power delivered to the load resistor in a circuit consisting of a battery and a load resistor, one needs to know only the
1.load resistance. 2.internal resistance. 3.load resistance and internal resistance. 4.emf, load resistance, and internal resistance.