What happens to a simple pendulum's frequency if both its length and mass are increased?
A) It remains constant.
B) It decreases.
C) It increases.
D) It could remain constant, increase, or decrease; it depends on the mass to length ratio (mass density).
B
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Suppose you live in the United States and you see a crescent moon in your evening sky tonight. What will a friend in South America see tonight?
A) a crescent moon B) Your friend won't see the Moon tonight, because in South America, it will be visible only in the morning. C) a gibbous moon D) a first-quarter moon
Use the ______ format for photographs or art-like images.
A. JPEG B. PNG C. BMP D. GIF
How would the data be influenced by an increase of friction in the pulley?
A planet orbiting the Sun has speed v = ?(GM/d). Escape speed from the Sun is v = ?v(2GM/d), where G is the gravitational constant, M is Sun's mass, and d is the distance from the Sun
Noting that this tells us that escape speed is ?2 times orbital speed, which planet would fly out of the solar system by a 1.5 increase in orbital speed? A) Mercury. B) Venus. C) Earth. D) all of the above E) none of the above