Answer:
Speed of the wreck after the collision is 65 km/h
Explanation:
When a car hits truck and sticks together, the collision would be totally inelastic. Since the both the vehicles locked together, they have the same final velocity.
Mass of car
Mass of truck
Initial speed of the car
Initial speed of the truck
The final velocity of the wreck will be
since final speed are same,
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When the swimmer gets out, the water on her skin begins to evaporate. This process requires takes a lot of energy and that energy comes from the heat of her body. This is similar to when someone sweats. Hope this helps!
the red giant is very tall and the red dwarf is very short.