A(n) ____ is one in which an object orbiting Earth has an orbital period equal to the rotation period of Earth
A) epicyclical orbit
B) open orbit
C) geosynchronous orbit
D) heliocentric orbit
C
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When an acid reacts with a carbonate or hydrogen carbonate, the products are water, ______________, and a salt
Fill in the blank(s) with correct word
A 6.0-?F air-filled capacitor is connected across a 100-V voltage source
After the source fully charges the capacitor, the capacitor is immersed in transformer oil (of dielectric constant 4.5). How much ADDITIONAL charge flows from the voltage source, which remained connected during the process? A) 1.5 mC B) 2.1 mC C) 1.7 mC D) 2.5 mC E) 1.2 mC
Star A is a main sequence star of spectral type G5 and star B is a red giant of spectral type K2. Which statement below is correct?
A) Star A appears brighter than star B. B) Star B appears brighter than star A. C) Star A is hotter than star B. D) Star B is hotter than star A. E) None of the above can be said about these two stars.
A high-voltage power line 23.0 m above the ground carries a current of 2 200 A. What is the magnetic field due to the current directly underneath the power line? (µ0 = 4? × 10^?7 T?m/A)
a. 19.1 µT b. 60.1 µT c. 60.9 mT d. 12.0 mT e. 12.0 T