Physics, 19.09.2019 03:50, webbjalia04
Imagine a glass box that is completely sealed and in that box is a cactus in a small pot which statement is most accurate?
a. this is an open system because the light can go through the glass and get into the box
b. this is an open system because air is circulating inside the glass box
c. this is a closed system because nothing of substance and get in or out of the box
d. this is a closed system because of light enters through the glass box
Answers: 1
Physics, 22.06.2019 15:40, caveman171
Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?
Answers: 1
Physics, 22.06.2019 19:30, isiahb123
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
Imagine a glass box that is completely sealed and in that box is a cactus in a small pot which state...
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