An eagle, with a wingspread of 2.0 m, flies due North at 8.0 m/s in a region where the vertical component of the earth's magnetic field is 0.2 × 10-4 T
What emf would be developed between the eagle's wing tips? (It has been speculated that this phenomenon could play a role in the navigation of birds, but the effect is too small, in all likelihood.)
0.32 mV
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Fill in the blank(s) with correct word
A radar pulse is bounced off the Moon at a distance of 400,000 km. What is the time from the transmitting of the pulse until its return?
a. 1.28 s c. 2.67 s b. 2.56 s d. 3.84 s
The overall dimming of starlight passing through dust clouds is called ________
Fill in the blank(s) with correct word
If a new force were discovered that had a range on the order of 10-18 meters:
(a) predict the mass of the exchange particle. (b) how long is conservation of energy violated in the exchange of this particle?