A6.30 kg piece of solid copper metal at an initial temperature t is placed with 2.00 kg of ice that is initially at -16.0 ∘c. the ice is in an insulated container of negligible mass and no heat is exchanged with the surroundings. after thermal equilibrium is reached, there is 0.90 kg of ice and 1.10 kg of liquid water. what was the initial temperature of the piece of copper?
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Physics, 22.06.2019 11:40, johanperezpere51
Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?
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Physics, 22.06.2019 14:30, zuleromanos
70 give a real life example showing how sensory neurons work with the motor neurons
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Physics, 22.06.2019 15:30, tiffuuu
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
A6.30 kg piece of solid copper metal at an initial temperature t is placed with 2.00 kg of ice that...
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