Which of these (hypothetical) modifications would cause lunar eclipses to happen once per month?
A) Change the Moon's orbital plane so it tilts the opposite way.
B) Change the orbital plane of the Moon so it lies in the same plane as Earth's orbit around the Sun.
C) Relocate the Moon to twice its current distance from the Earth.
D) Make the Moon orbit the Earth twice as fast.
B
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One disadvantage of dispersion-strengthened metals at high temperatures is that the dispersion and the matrix are not in _________with each other, and as a result the matrix and dispersion may react with each other.
Fill in the blank(s) with the appropriate word(s).
Which is another term for a raster image?
A. pixelated B. zoomed C. bitmap D. compressed
4.0 J of work are performed in stretching a spring with a spring constant of 2500 N/m. How much is the spring stretched?
A) 3.2 cm B) 3.2 m C) 0.3 cm D) 5.7 m E) 5.7 cm
A light bulb, sold as long-lasting, is rated 120 W at 130 V. The "increased" lifetime comes from using it at 120 V. Assuming negligible change in resistance at the different voltage, what is its power consumption at 120 V?
a. 92 W c. 108 W b. 102 W d. 85 W