An atom that has fewer electrons than protons is called a(n)
A) ion.
B) molecule.
C) solid.
D) plasma.
A) ion.
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A 25 nH inductor is in an AC circuit whose generator has an rms voltage of 12 V. At what frequency must the generator drive the circuit if the rms current is to be 2.0 mA?
A. 0.15 MHz B. 38 GHz C. 0.96 MHz D. 240 GHz
The power of American automobiles is usually rated in "horsepower." What other units could be used?
A) watts B) joules C) Calories D) None of the above. E) All of the above.
A color-coded ______________ Index is used to indicate how good or bad the air is, in terms of pollution
Fill in the blank(s) with correct word
The pressure at the bottom of a glass filled with water (? = 1 000 kg/m3) is P. The water is poured out and the glass is filled with ethyl alcohol (? = 806 kg/m3). The pressure at the bottom of the glass is now
1.smaller than P. 2.equal to P. 3.larger than P. 4.indeterminate.