In a polarized plug, the large slit connects to the hot side and the small slit connects to the neutral, or ground, side
Indicate whether the statement is true or false
FALSE
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The number of vibrations per second of an electromagnetic wave is referred to as its
A) energy B) frequency C) speed D) wavelength
A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the mass is at the lowest point on the circle, the speed of the mass is 12 m/s. What is the magnitude of the force of the string on the mass at this position?
A. 31 N B. 36 N C. 41 N D. 46 N E. 23 N
There are three ________ of elementary particles in the standard model.
Fill in the blank(s) with the appropriate word(s).
A certain pendulum consists of a 1.5-kg mass swinging at the end of a string (length = 2.0 m). At the lowest point in the swing the tension in the string is equal to 20 N. To what maximum height above this lowest point will the mass rise during its oscillation?
a. 77 cm b. 50 cm c. 63 cm d. 36 cm e. 95 cm