Question

scientific calculations? the precision of measurements affect the precision of scientific calculations because it is limited by the least precise measurement in the calculation 4. list the si units for mass, length, and temperature. 1.length=m mass=kg volume=m^3 critical thinking 5. applying concepts a bulb thermometer gives an indoor temperature reading of 21°c. a digital thermometer in the same room gives a reading of 20.7°c. which device is more precise? explain. type your answer here 6. calculating convert -11°f into degrees celsius, and then into kelvins. type your answer here

Explanation:

Step1: Answer question 4

The SI unit for mass is kilogram (kg), for length is meter (m), and for temperature is kelvin (K).

Step2: Answer question 5

The digital thermometer is more precise. Precision refers to the number of decimal - places or the smallest increment a measuring device can record. The digital thermometer records to one - tenth of a degree ($20.7^{\circ}C$) while the bulb thermometer records to a whole degree ($21^{\circ}C$).

Step3: Answer question 6

The formula to convert Fahrenheit ($F$) to Celsius ($C$) is $C=\frac{5}{9}(F - 32)$.
Substitute $F=-11$ into the formula:
$C=\frac{5}{9}(-11 - 32)=\frac{5}{9}(-43)\approx - 23.9^{\circ}C$.
The formula to convert Celsius to Kelvin ($K$) is $K = C+273.15$.
Substitute $C=-23.9$ into the formula:
$K=-23.9 + 273.15=249.25$ K.

Answer:

1. Mass: kg, Length: m, Temperature: K
2. The digital thermometer is more precise because it records to one - tenth of a degree while the bulb thermometer records to a whole degree.
3. $-11^{\circ}F$ is approximately $-23.9^{\circ}C$ and $249.25$ K.