The angular measure in degrees north or south of the celestial equator is called ______________
Fill in the blank(s) with correct word
declination
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Radio telescopes are _____
A) reflecting telescopes B) refracting telescopes C) infrared telescopes D) optical telescopes
During a helium flash, what happens to the star? Does it get brighter? Why or why not?
What will be an ideal response?
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 ?, what is the magnitude of the induced current?
a. 0.70 A b. 0.60 A c. 0.50 A d. 0.80 A e. 0.20 A
An atom that has more electrons than protons is a ______________ ion
a. neutral b. positive c. negative d. polyatomic