1.A round wooden log of diameter 73cm floats with half of its radius above water. Determine the log’s density

Question

2.An ideal gas doubles its volume in one of three different ways: at constant pressure, at constant temperature, and adiabatically. For each method, give an expression for the work done, the change in internal energy, and the heat that is either added to or taken away from the system.

Answer 1

1. No calculations needed, the density of the log is 1/2 that of water, think that out.

2. This sounds like a test question. Are you taking a test?