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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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?
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Indicate whether the statement is true or false
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