You have a choice between two lenses of focal lengths fa and fb = 2 fa to use as objective lens in building a refracting telescope. If the magnification you obtain using lens A is Ma, what will be the magnification when using lens B?
A) Mb = 2 Ma
B) Mb = 4 Ma
C) Mb = 8 Ma
D) Mb = Ma /4
E) Mb = Ma /2
A
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(a) In the fiber plane shear (b) Axial compression (c) Transverse tension (d) Transverse compression
A 10.0-?F capacitor is plugged into a 110 V-rms 60.0-Hz voltage source, with an ammeter in series. What is the rms value of the current through the capacitor?
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What has the greater entropy, ice or water? _____________
Fill in the blank(s) with the appropriate word(s).
If a star that is 10 light-years away from Earth explodes, gravitational waves from the explosion will reach Earth in
A) less than 10 years. B) more than 10 years. C) 10 years.