By what factor must one change the weight suspended vertically from a spring coil in order to increase its period of simple harmonic motion by five?
a. 1/25
b. 1/5
c. 5
d. 25
e. 1
d
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The nuclear bulge of our galaxy
a. contains stars that are primarily population I stars. b. is primarily composed of gas and dust. c. contains stars primarily associated with the spherical component of our galaxy. d. contains stars primarily associated with the disk component of our galaxy. e. contains stars that are primarily population I stars, is primarily composed of gas and dust, and contains stars primarily associated with the disk component of our galaxy.
A camera is designed to bring light into focus (to form an image) on its
A) detector. B) shutter. C) lens.
A mass hangs on a spring held in a physicist's hand. When the mass is pulled down and then released, it oscillates with a period of 2.0 s. This system is taken to the space station orbiting the Earth. The spring is held in an astronaut's hand, and the mass, when pulled down and released, will
A. not oscillate at all. B. oscillate with a longer period. C. oscillate with a shorter period. D. oscillate with an unchanged period.
A certain part of the electromagnetic spectrum ranges from 200 nm to 400 nm. What is the highest frequency associated with this portion of the spectrum? (c = 3.00 × 108 m/s)
A) 1.50 × 1014 Hz B) 7.50 × 1013 Hz C) 7.50 × 1014 Hz D) 7.50 × 1015 Hz E) 1.50 × 1015 Hz