What would be the equilibrium temperature when a 256 g, Ask an Expert

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Q1. What would be the equilibrium temperature when a 256 g block of copper at 314 °C is placed in a 140 g aluminium calorimeter cup containing 827 g of water at 11.5 °C?

Q2. A street lamp weighs 145 N. It is supported equally by two wires that form an angle of 120° with each other.

What is the tension of each of these wires?

If the angle between the wires is condensed to 90.0°, what new force does each wire exert?

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Category:- Physics
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