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Q. (a) Find the mass of hypothetical spherical asteroid 2 km in diameter and composed of rock with average density 2500 kg/m (cubed). (b) Find the speed required to escape from the surface of this asteroid. (c) A typical jogging speed is 3 m/s. What would you happen to an astronaut who decided to go for a jog on this asteroid?

Q. An uncharged capacitor is connected to the terminals of a 4.0 battery, and 12 flows to the positive plate. The 4.0 battery is then disconnected and replaced with a 7.0 battery, with the positive and negative terminals connected in the same manner as before. How much additional charge flows to the positive plate?

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