A pendulum makes 12 complete swings in 8.0 s. (a) What is its frequency? (b) What is its period?
What will be an ideal response?
(a) 1.5 Hz
(b) 0.67 s
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Answer the following statement true (T) or false (F)
A particle is moving with a constant acceleration of 4.0 m/s2. Its speed at t = 1.0 s is 4.0 m/s and at t = 3.0 s it is 12.0 m/s. What is the area under the position-time graph for the interval from t = 1.0 s to t = 3.0 s?
A. 8.0 m/s B. 8.0 m C. 12 m D. 16 m E. 16 m/s2
The objective lens of a telescope has a focal length of 1.90 m. When viewed through this telescope, the Moon appears 5.25 times larger than normal
How far apart are the objective lens and the eyepiece when this instrument is focused on the Moon?
What is the wavelength of 200 MHz television EM waves? (c = 3 × 10^8 m/s)
a. 9 km c. 1.5 m b. 10 m d. 3 m