Aperson tries to pour exactly one kilogram of sand onto a scale on five different occasions. the actual amounts he pours are shown below:
0.80kg, 0.90 kg, 1.0 kg, 1.1 kg, 1.2 kg
which of the following best describes his results

a. his results were very precise
b. while inconsistent, his average of 1.0 kg made his results quite accurate
c. his results were both precise and accurate
d. his results were very consistent

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

which statements describe the image? check all that apply.the wood is releasing argon gas.this information is useful for dating ancient rock.the process works only with organic matter.the element has a half-life of 5,730 years.this shows the half-life of carbon-19.