Physics, 13.01.2021 03:40 Carlyalexis641
John and Caroline go out for a walk one day. This graph represents their distance from home. Which statement accurately describes their walk?
They walked uphill quickly, then they were still, then they walked downhill slowly.
They walked faster and faster until they walked at a constant rate, then they walked slower and slower.
They walked quickly, then they were still, then they walked slowly.
They walked in one direction, then they were still, then they walked in the opposite direction.
Answers: 2
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Agas contained within a piston-cylinder assembly undergoes three processes in series: process 1๏ 2: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 2๏ 3: constant pressure expansion to 1 liter. process 3๏ 1: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
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Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
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John and Caroline go out for a walk one day. This graph represents their distance from home. Which s...
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