Question Description
1. The velocity-time graph for a two-stage rocket is shown below. Use the graph and your understanding of slope calculations to determine the acceleration of the rocket during the following time interval. (picture 1)
2. A 4 kg block slides down a rough inclined plane inclined at 30° 
with the horizontal. Determine the coefficient of kinetic friction between the block and the surface if the block has an acceleration of 1.2 m/s2.
3. 1 kg of ice at 0° C is mixed with 9 kg of water at 50° C (The latent heat of ice is 3.34×105 J/kg and the specific heat capacity of water is 4160 J/kg). What is the resulting temperature?
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