Components: The magnitude of a vector can never be less than the magnitude of any of its components.
A. True
B. False
Answer: A
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A force applied to an object will always cause the object to
a. speed up b. accelerate c. change its momentum d. all of the above e. none of the above
Compare the radio and x-ray images. Can you conclude from this comparison that gas clouds containing molecules absorb x-ray light?
What will be an ideal response?
A conducting rod (length = 2.0 m) spins at a constant rate of 2.0 revolutions per second about an axis that is perpendicular to the rod and through its center. A uniform magnetic field (magnitude = 8.0 mT) is directed perpendicularly to the plane of rotation. What is the magnitude of the potential difference between the center of the rod and either of its ends?
a. 16 mV b. 50 mV c. 8.0 mV d. 0.10 mV e. 100 mV
An FM radio tuning circuit has a coil with an inductance of 0.0015 mH. What is the value of the capacitance if the set is tuned to 98 MHz?
a. 1.8 × 10^-6 mF c. 0.98 × 10^-6 mF b. 0.88 × 10^-6 mF d. 12 × 10^-6 mF