Physics, 30.04.2021 01:00 truesarah111
Paula finds that the temperature of a beaker of hot water drops several degrees in a few minutes. She says that there must be an exothermic reaction taking place in the water. do you agree? explain.
Answers: 3
Physics, 22.06.2019 02:30
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
Answers: 2
Physics, 22.06.2019 04:00
Acompound machine is also called a machine. a. force b. simple c. complex d. directional
Answers: 1
Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Physics, 22.06.2019 10:00
Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
Paula finds that the temperature of a beaker of hot water drops several degrees in a few minutes. Sh...
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