What is a caldera?
What will be an ideal response?
A large volcanic crater
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Plane Mirrors: Which one of the following numbers is the correct magnification produced by a plane mirror?
A. 1/2 B. 1/4 C. 2 D. 1 E. 3/2
Based on their inability to detect stellar parallax, the ancient Greeks concluded that
A. the stars must be extremely far away B. Earth must be the center of the universe C. they lacked the technology necessary for detecting stellar parallax D. either Earth is the center of the universe or stars are extremely far away
A boy throws a rock with an initial velocity of 2.15 m/s at 30.0° above the horizontal. If air resistance is negligible, how long does it take for the rock to reach the maximum height of its trajectory?
A) 0.110 s B) 0.194 s C) 0.215 s D) 0.303 s
A satellite with a rest mass of 200 kg and a speed of 0.800c and a second satellite with a rest mass of 100 kg and a speed of 0.600c are traveling toward each other in deep space
The satellites collide and somehow manage to stick together. What is the rest mass of the combined object after the collision? A) 300 kg B) 389 kg C) 416 kg D) 457 kg E) 587 kg