12 points. change of state: identify the process that causes each change of sate describe below, write the appropriate answer on the space provided. an ice cube left in a freezer for a month becomes smaller. drops of water appear on the side of a glass of ice water. a rainy morning turns sunny, and puddles disappear from a sidewalk.

Which sound characteristic is not affected by the relative motion of an object

What happens when a rubber rod is rubbed with a piece of fur?

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)