Signals that are the same or similar to their original energy source.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate