A diver leaps off a 3.0 m high diving board with a speed of 3.7 m/s and at an angle of 60° above the horizontal. How fast is the diver going when she reaches the water below? (Hint: Use conservation of mechanical energy for this!)A piece of iron has a mass of 0.4 kg and is initially at 1,145 degrees C. It is lowered into a beaker with 20 L of water at 22 degrees C. What is the final equilibrium temperature? (Hint: Neglect any energy loss to the environment. This means the system is isolated. But the iron and water can still exchange energy in the form of heat; it’s just that, by the first law of thermodynamics, the total heat (Q) must be zero. Also, table 6.4 in the text has the specific heat capacities of iron and water.)
https://essaysprompt.com/wp-content/uploads/2020/10/19-2.png 0 0 https://essaysprompt.com/wp-content/uploads/2020/10/19-2.png 2022-12-17 00:42:172022-12-17 00:42:17A diver leaps off a 3.0 m high diving board with a speed of 3.7 m/s and at an an
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