How many valence electrons does bromine (Br, atomic no. = 35) have?
A) 1
B) 7
C) 21
D) 28
E) 35
Answer: B
Physics & Space Science
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A series RLC circuit has a 100-? resistor, 2.0-mH inductor and a 4.0-?F capacitor connected across a 120-V rms AC source at (1000/?) Hz. What is the power factor of this circuit?
A) 0.54 B) 0.64 C) 0.74 D) 0.84 E) 0.94
Physics & Space Science
All people come very close to being able to float in water. What therefore is the volume (in cubic meters) of a 50-kg woman?
a. 0.007 b. 0.035 c. 0.050 d. 0.070 e. 0.085
Physics & Space Science
A 2-hp motor can do the same amount of work as a 1-hp motor in ______________ the time. n
Fill in the blank(s) with correct word
Physics & Space Science
The rest mass of a photon is zero kg
Indicate whether the statement is true or false
Physics & Space Science