The headlights are shining on a truck travelling at 100 km/h. the speed of the light from the headlights relative to the road will be:

a) c

b) c + 100 km/h

c) c – 100 km/h

d) depends on the temperature, but faster than the speed if the truck was not moving.

e) faster than if the truck was not moving, but impossible to calculate with the given information

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Anybody wanna ? (picture included? )

What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?