Estimate the service flow rate for level of service D for a six-lane freeway (three lanes in each direction with 12-ft (3.6m) lanes and obstructions 6 ft (1.8 m) from the edge of pavement. The section is to accommodate 5 percent single unit trucks and 5 percent tractor trailer trucks. The design speed is 75 mph, and the section has a +3 percent grade that is 0.7 mile long. NOTE: assume the road is located in a rural region (i. e. TRD = 0.5 ramps / 1 mile).

oil flow is a highly convective flow compared to water flow at normal temperature and pressure.

energy can cross the boundaries of a closed system in the form of heat and mass

explanation:

the warning light flashes for a second or two when the engine starts. if it stays on, there's must be something wrong with the coolant. you should never dare to continue driving when the light is on. pull over as soon as possible and shut the engine off.

hope this is what you're talking about