How fast do plates move on Earth?
A) a few centimeters per year
B) a few millimeters per century
C) a few kilometers per century
D) quite fast, but only during earthquakes
E) about 1 mile per hour
A
You might also like to view...
Which type of NEO explodes in the atmosphere before reaching the Earth's surface?
Which type of NEO explodes in the atmosphere before reaching the Earth's surface?
- Asteroid
- Meteroite
- Bolide
Momentum: A satellite, initially at rest in deep space, separates into two pieces, which move away from each other. One piece has a mass of 190 kg and moves away with a speed 0.280c, and the second piece moves in the opposite direction with a speed 0.600c. What is the mass of the second piece?
A. 88.7 kg B. 79.6 kg C. 73.9 kg D. 68.8 kg E. 52.7 kg
A 0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is the magnitude of the change in the momentum of the ball during the rebound?
A) 72 kg ? m/s B) 4.4 kg ? m/s C) 1.8 kg ? m/s D) 5.4 kg ? m/s E) 1.2 kg ? m/s
In simple harmonic motion, when is the magnitude of the acceleration the greatest? (There could be more than one correct choice.)
A) when the kinetic energy is a minimum B) when the displacement is a zero C) when the speed is a maximum D) when the potential energy is a maximum E) when the magnitude of the displacement is a maximum