Physics, 10.06.2020 20:57 granthazenp5e9mj
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In which situations (1-5) the internal energy of the body changes as a result of work (A), and in which - as a result of heat flow (B)? Mark the correct squares.
1. The bullet hit the shield.
2. People sitting by the hot fireplace felt warm.
3. The stone statue, standing in a sunny place, warmed up on one side.
4. The metal ball was thrown into hot water.
5. While braking the car's tires warmed up
Answers: 2
Physics, 21.06.2019 20:30
Which of the following is a source of heat for magma formation? magma plumes in the continental crust friction due to divergence friction due to subduction magma plumes in the oceanic crust
Answers: 1
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 17:40
The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
Physics, 22.06.2019 17:50
If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around
Answers: 2
Please help
In which situations (1-5) the internal energy of the body changes as a result of work (...
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