A car goes around a curve at 20. m/s. If the radius of the curve is 40 m, what is the centripetal acceleration of the car?

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?

Will give brainliest! describe what it means to view something from a frame of reference.