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Q1. A cube of ice is taken from the freezer at -8.4^circ C and positioned in a 114 g aluminium calorimeter filled with 322g of water at room temperature of 20.0 C. The final situation is observed to be all water at 15.0C.

Q2. A 12.0 kg shell is launched at an angle of 64 degrees above the horizontal with the initial speed of 120m/s. When it is at its highest point, the shell exploded into two fragments, one three times the mass of the other. The two fragments reach the ground at same time. You can ignore air resistance. The heavier fragment lands back at an original launching point.

How far from the launch does the lighter fragment land?

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  • Category:- Physics
  • Reference No.:- M9163532

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