A space probe with a rest mass of 8.0×10^7 kg and a speed of 0.51c smashes into an asteroid at rest and becomes embedded with it.
**Part A:
If the speed of the probe-asteroid system is 0.26c after the
collision, what is the rest mass of the asteroid?
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A space probe with a rest mass of 8.0×10^7 kg and a
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