How much brighter will a 4th magnitude star appear than a 6th magnitude star?
A) 2.0 times B) 2.5 times C) 6.25 times D) 8 times E) 16 times
C
You might also like to view...
If the 5th order minimum in the diffraction pattern is at 40°, at what angle is the 1st order minimum?
A) 8.0° B) 3.4° C) 4.0° D) 7.4° E) 1.7°
A bird can sit harmlessly on a high-voltage wire because
A) the wire is insulated. B) no potential difference is across the birds feet. C) current is inside, not outside, the wire. D) the net charge on a current-carrying wire is zero. E) all of the above
Angular Momentum: A ballerina spins initially at 1.5 rev/s when her arms are extended. She then draws in her arms to her body and her moment of inertia becomes 0.88 kg ? m2, and her angular speed increases to 4.0 rev/s. What was her initial moment of inertia?
Fill in the blank(s) with the appropriate word(s).
A series circuit is a current divider and a parallel circuit is a voltage divider circuit
Indicate whether the statement is true or false