Sienna made a chart listing the steps that describe how a four-stroke heat engine operates. which best describes sienna’s error?

Which of the following represents an upside-down image?

In a good thermo flask the main cause of heat loss is

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.