A given individual is unable to see objects clearly when they are beyond 100 cm. What focal length lens should be used to correct this problem?
a. ?100 cm
b. ?33.3 cm
c. ?20 cm
d. 75 cm
e. 100 cm
a
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RLC Circuits: A 120-V rms voltage at 1000 Hz is applied to an inductor, a 2.00-?F capacitor and a 100-? resistor. If the rms value of the current in this circuit is 0.680 A, what is the inductance of the inductor?
A. 34.2 mH B. 35.8 mH C. 11.4 mH D. 17.9 mH E. 22.8 mH
Water is present on the Moon and Mercury in the form of
A) liquid water present just beneath the surface B) ice in polar craters C) vapor in the atmosphere D) oceans of liquid water on the surface
If I1 goes to the right through R1, I2 goes to the right through R2, and I3 goes to the right through R3, what is the resulting equation resulting from applying Kirchhoff’s loop rule for a clockwise loop around the perimeter of the circuit?
a.
8.0 V + I1R1 + I3R3 = 0
b.
8.0 V + I1R1 – I3R3 = 0
c.
8.0 V – I1R1 + I3R3 = 0
d.
–8.0 V + I1R1 + I3R3 = 0
The Milky Way Galaxy is forming about ten stars per month
Indicate whether the statement is true or false