Visible light from a distant star can be spread into a spectrum by using a glass prism or
A) a diffraction grating.
B) adaptive optics.
C) a telescope.
D) a flat glass mirror.
A
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As a star's temperature increases, the frequency of peak emission also increases
Indicate whether the statement is true or false
Describe the impact the discovery of extrasolar planets has had for understanding the origin of our own Solar System
What will be an ideal response?
A toroid is made of 2 000 turns of wire of radius 2.00 cm formed into a donut shape of inner radius 10.0 cm and outer radius 14.0 cm. When a 30.0-A current is present in the toroid, the magnetic field at a distance of 11.0 cm from the center of the toroid is
a. 0.0857 T. b. 0.109 T. c. 0.120 T. d. 0.600 T. e. 0.685 T.
What is the self-inductance of an ideal solenoid that is 300 cm long with a cross-sectional area of 1.00 × 10-4 m2 and has 1000 turns of wire? (?0 = 4? × 10-7 T ? m/
A) A) 4.19 nH B) 4.19 pH C) 4.19 ?H D) 41.9 nH E) 41.9 µH