A pilot executes a vertical dive. Just before the plane starts to come up from the bottom of the dive, the force on him is
A) more than g, and pointing down.
B) less than g, and pointing up.
C) more than g, and pointing up.
D) less than g, and pointing down.
E) equal to g, and pointing down.
C
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Match the words in the left-hand column to the appropriate blanks in the sentences in the right-hand column. Use each word only once.
Saturn, Earth, Mars, Venus, Uranus, Mercury, Jupiter, Neptune
1. ____________ has a rotational axis that is tilted so much it lies nearly in the plane of its orbit.
2. ____________ is the planet with the highest average surface temperature.
3. The planet that orbits closest to the Sun is __________.
4. The only rocky planet to have more than one moon is ___________.
5. ___________ is the jovian planet that orbits closest to the Sun.
6. Most of the surface of _________ is covered with liquid water.
7. ___________ is about 30 times as far from the Sun as our own planet.
8. The planet with the lowest average density is ___________.
Colors in Jupiter's clouds are largely due to helium compounds
Indicate whether the statement is true or false
Triton has a retrograde orbit around Neptune. This means that ____________
a. Triton orbits in the same direction as Neptune rotates on its axis. b. Triton orbits in the opposite direction to the way Neptune rotates on its axis. c. Triton does not orbit around Neptune. Instead, it stands still.
Series Resonance: A 120-mH inductor is in series with a 20-? resistor and a variable capacitor that can range from 0.110 ?F to 0.400 ?F.(a) What is the range of possible resonance frequencies?(b) If the power supply is a 24-V rms source, what rms current flows at resonance?
What will be an ideal response?