Answers: 2
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
Physics, 22.06.2019 19:50, naidaisha18
Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)
Answers: 1
Which of the following is NOT a type of galaxy? a. spiral c. elliptical b. oval d. irregular...
Biology, 31.08.2019 03:00
Social Studies, 31.08.2019 03:00
Chemistry, 31.08.2019 03:00
Social Studies, 31.08.2019 03:00
Business, 31.08.2019 03:00
Chemistry, 31.08.2019 03:00
Biology, 31.08.2019 03:00