What expresses a scalar quanitity?
a cat walks 5 meter in a garden.
a car move 40 m/s to the northeast
a plane flies to an airport located 350 meters to the south.
a person goes on a 3-kilometer jog from home to the store.

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Akg a of 55 m at an of 11 ? . if is at 98 km/h, be ?