Toss a baseball bat into the air and it wobbles about its

A) geometrical center.
B) center of mass.
C) heavier end.


Answer: B

Physics & Space Science

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The Sun's magnetic field is evident in the looped shapes of

a. solar flares. b. sunspots. c. the corona. d. granules. e. prominences.

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The Greenhouse Effect works by trapping:

A) incoming ultraviolet radiation from the Sun. B) outgoing ultraviolet radiation from the Earth. C) incoming infrared radiation from the Sun. D) outgoing infrared radiation from the Earth. E) the heat from the Sun in Earth's atmosphere.

Physics & Space Science

Two adjacent sources each emit a frequency of 800. Hz in air where the velocity of sound is 340. m/s. How much farther back would the first source have to be moved so an observer in front of the sources would hear no sound?

What will be an ideal response?

Physics & Space Science

An AM radio tuning circuit has a coil with an inductance of 3.93 mH and a capacitor set at 5.68 × 10^?12 F. What frequency will it detect?

a. 8.90E+5 Hz b. 1.07E+6 Hz c. 1.78E+6 Hz d. 1.70E+5 Hz e. 5.33E+5 Hz

Physics & Space Science