Roger notices that the voltmeter he uses in his electrical experiments gives inconsistent readings of power variations. The variations of the instrument are random. Hence, the ___ of the measurements made by the instrument is less.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7