A diffraction grating has 5000 lines per cm. The angle between the central maximum and the fourth order maximum is 47.2°. What is the wavelength of the light?
A)
138 nm
B)
183 nm
C)
367 nm
D)
452 nm
E)
637 nm
C
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A gravitational wave can carry energy away from two very dense objects if they are orbiting each other or collide.
Answer the following statement true (T) or false (F)
Only two forces act on a 3.0-kg mass. One of the forces is 9.0 N east, and the other is 8.0 N in the direction of 62° north of west. What is the magnitude of the acceleration of the mass?
a. 2.0 m/s2 b. 2.4 m/s2 c. 3.3 m/s2 d. 2.9 m/s2 e. 5.7 m/s2
In Copernicus' model of the solar system, the planets orbited the ________ in ________ orbits.
A. Sun; circular B. Earth; circular C. Earth; elliptical D. Sun; elliptical
Find the resonant frequency for a series RLC circuit where R = 10 ?, C = 5.00 ?F, and L = 2.00 mH.
A. 998 Hz B. 1.59 kHz C. 2.45 kHz D. 11.3 kHz E. 2.53 kHz