What are the two conditions for an eclipse?
What will be an ideal response?
The Sun must be near one of the two nodes of the Moon's orbit, and the Moon must pass near either the same node (solar eclipse) or the other node (lunar eclipse).
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What are the 3 parts of this type of galaxy, and which 2 might you see through a telescope?
A: Disk, bulge, and halo; would see bulge and disk, and wouldn't see halo. B: Disk, bulge, and halo; would see bulge and halo, and wouldn't see disk. C: Stars, Gas, and dust; would see gas and dust, and wouldn't see stars. D: Spirals, ellipticals, and irregulars; would see ellipticals and spirals, but wouldn't see irregulars. E: Spirals, ellipticals, and irregulars; would see irregulars and spirals, but wouldn't see ellipticals.
Techniques for improving yield of livestock involve risks because of the concentration of waste products as the numbers raised in one place increase
What will be an ideal response?
Two things that are quantized in the Bohr model of the hydrogen atom are __________ and __________
Fill in the blank(s) with correct word
A 300-A•h battery can deliver how many coulombs starting from a full charge?
a. 4.8 × 10^3 c. 7.2 × 10^5 b. 4.3 × 10^4 d. 1.1 × 10^6