Physics, 29.04.2021 20:00 azireyathurmond1
A 2.14-kg clock having 25.6 J of gravitational potential energy fell off a shelf. How high was the shelf?
Answers: 2
Physics, 22.06.2019 19:30
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, 23.06.2019 01:40
The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?
Answers: 1
A 2.14-kg clock having 25.6 J of gravitational potential energy fell off a shelf. How high was the s...
Social Studies, 22.07.2019 22:30
Social Studies, 22.07.2019 22:30
Social Studies, 22.07.2019 22:30
Mathematics, 22.07.2019 22:30
Mathematics, 22.07.2019 22:30
Mathematics, 22.07.2019 22:30