What does correctness of a technical document mean?

Where do professional letters state the writer’s contact details?

A conical tank, 10 meters deep and 8 meters across at the top and the point at the bottom, is filled with water to a depth of 5 meters. The tank is emptied by pumping the water over the top edge. How much work is done in the process?   Click ‘True’ when finished

How much heat is required for the isobaric expansion of 10 liters of nitrogen gas when going from 25oC to 25 liters at a pressure of 1 bar? You can assume ideal gas behavior.

Many but not all gas molecules have 3 translational and 3 rotational degrees of freedom.

The convective heat transfer coefficient h of gases are higher than that of liquids

Fourier’s law states that the conductive heat transfer rate across a solid surface is

Which of the following factors contributes to the learning curve phenomenon?

According to learning curve theory, there is a constant rate that applies to a given repetitive  task. If the task time T1= 12 hours and the learning rate 78%. Calculate T8

There is a 0.9975 probability that a randomly selected 50-year-old female lives through the year.  A Fidelity life insurance company charges $226 for insuring that the female will live through the year.  If she does not survive, the policy will pay out $50,000 as a death benefit.  If a 50-year-old female purchases the policy, what is the expected value?