Avoltmeter with a range of 0 to 100 v reads 2 v when the leads are shorted together. the manufacturer claims an accuracy of ±4% of full scale. estimate the maximum error when reading a voltage of 80 v in both volts and as a percentage of reading. if the voltmeter is adjusted so that the reading when the leads are shorted together is 0 v, estimate the maximum percent error when reading 80 v.

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.