Which one of the following is normally not a characteristic of a simple two-lens refracting astronomical telescope?
A) The final image is virtual.
B) The final image is inverted.
C) The angular size of the final image is larger than that of the object.
D) The objective forms a virtual image.
D
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If you exert a force F on an object, the force which the object exerts on you will
A) depend on whether or not the object is moving. B) depend on whether or not you are moving. C) depend on your mass. D) depend on the object's mass. E) always be -F.
A laser with a power of 1.0 mW has a beam radius of 1.0 mm
What is the peak value of the electric field in that beam? (c = 3.0 x 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2) A) 490 V/m B) 22 V/m C) 65 V/m D) 840 V/m E) 120 V/m
What is the net force inward acting on a spherical bathysphere of diameter 2.00 m at an ocean depth of 1 000 m? (The pressure inside the bathysphere is, hopefully, 1 ATM.) r(sea water) = 1.02 × 10^3 kg/m3
a. 1.26 × 10^4 N b. 1.26 × 10^6 N c. 1.26 × 10^8 N d. 1.26 × 10^10 N e. 1.26 × 10^2 N
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